/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997
+ Free Software Foundation, Inc.
Written by
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
+#include "bfdlink.h"
#include "libbfd.h"
#include "obstack.h"
-#include "bfdlink.h"
-#include "libelf.h"
+#include "elf-bfd.h"
+
+/* The internal type of a symbol table extension entry. */
+typedef unsigned long symext_entryS;
+
+/* The external type of a symbol table extension entry. */
+#define ELF32_PARISC_SX_SIZE (4)
+#define ELF32_PARISC_SX_GET(bfd, addr) bfd_h_get_32 ((bfd), (addr))
+#define ELF32_PARISC_SX_PUT(bfd, val, addr) \
+ bfd_h_put_32 ((bfd), (val), (addr))
+
+/* HPPA symbol table extension entry types */
+enum elf32_hppa_symextn_types
+{
+ PARISC_SXT_NULL,
+ PARISC_SXT_SYMNDX,
+ PARISC_SXT_ARG_RELOC,
+};
+
+/* These macros compose and decompose the value of a symextn entry:
+
+ entry_type = ELF32_PARISC_SX_TYPE(word);
+ entry_value = ELF32_PARISC_SX_VAL(word);
+ word = ELF32_PARISC_SX_WORD(type,val); */
+
+#define ELF32_PARISC_SX_TYPE(p) ((p) >> 24)
+#define ELF32_PARISC_SX_VAL(p) ((p) & 0xFFFFFF)
+#define ELF32_PARISC_SX_WORD(type,val) (((type) << 24) + (val & 0xFFFFFF))
+
+/* The following was added facilitate implementation of the .hppa_symextn
+ section. This section is built after the symbol table is built in the
+ elf_write_object_contents routine (called from bfd_close). It is built
+ so late because it requires information that is not known until
+ the symbol and string table sections have been allocated, and
+ the symbol table has been built. */
+
+#define SYMEXTN_SECTION_NAME ".PARISC.symext"
+
+struct symext_chain
+ {
+ symext_entryS entry;
+ struct symext_chain *next;
+ };
+
+typedef struct symext_chain symext_chainS;
+
+/* We use three different hash tables to hold information for
+ linking PA ELF objects.
+
+ The first is the elf32_hppa_link_hash_table which is derived
+ from the standard ELF linker hash table. We use this as a place to
+ attach other hash tables and static information.
+
+ The second is the stub hash table which is derived from the
+ base BFD hash table. The stub hash table holds the information
+ necessary to build the linker stubs during a link.
+
+ The last hash table keeps track of argument location information needed
+ to build hash tables. Each function with nonzero argument location
+ bits will have an entry in this table. */
+
+/* Hash table for linker stubs. */
+
+struct elf32_hppa_stub_hash_entry
+{
+ /* Base hash table entry structure, we can get the name of the stub
+ (and thus know exactly what actions it performs) from the base
+ hash table entry. */
+ struct bfd_hash_entry root;
+
+ /* Offset of the beginning of this stub. */
+ bfd_vma offset;
+
+ /* Given the symbol's value and its section we can determine its final
+ value when building the stubs (so the stub knows where to jump. */
+ symvalue target_value;
+ asection *target_section;
+};
+
+struct elf32_hppa_stub_hash_table
+{
+ /* The hash table itself. */
+ struct bfd_hash_table root;
+
+ /* The stub BFD. */
+ bfd *stub_bfd;
+
+ /* Where to place the next stub. */
+ bfd_byte *location;
+
+ /* Current offset in the stub section. */
+ unsigned int offset;
+
+};
+
+/* Hash table for argument location information. */
+
+struct elf32_hppa_args_hash_entry
+{
+ /* Base hash table entry structure. */
+ struct bfd_hash_entry root;
+
+ /* The argument location bits for this entry. */
+ int arg_bits;
+};
+
+struct elf32_hppa_args_hash_table
+{
+ /* The hash table itself. */
+ struct bfd_hash_table root;
+};
+
+struct elf32_hppa_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+};
+
+struct elf32_hppa_link_hash_table
+{
+ /* The main hash table. */
+ struct elf_link_hash_table root;
+
+ /* The stub hash table. */
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+
+ /* The argument relocation bits hash table. */
+ struct elf32_hppa_args_hash_table *args_hash_table;
+
+ /* A count of the number of output symbols. */
+ unsigned int output_symbol_count;
+
+ /* Stuff so we can handle DP relative relocations. */
+ long global_value;
+ int global_sym_defined;
+};
+
+/* FIXME. */
+#define ARGUMENTS 0
+#define RETURN_VALUE 1
+
+/* The various argument relocations that may be performed. */
+typedef enum
+{
+ /* No relocation. */
+ NO,
+ /* Relocate 32 bits from GR to FP register. */
+ GF,
+ /* Relocate 64 bits from a GR pair to FP pair. */
+ GD,
+ /* Relocate 32 bits from FP to GR. */
+ FG,
+ /* Relocate 64 bits from FP pair to GR pair. */
+ DG,
+} arg_reloc_type;
+
+/* What is being relocated (eg which argument or the return value). */
+typedef enum
+{
+ ARG0, ARG1, ARG2, ARG3, RET,
+} arg_reloc_location;
+
-/* Note there isn't much error handling code in here yet. Unexpected
- conditions are handled by just calling abort. FIXME damnit! */
-
/* ELF32/HPPA relocation support
This file contains ELF32/HPPA relocation support as specified
in the Stratus FTX/Golf Object File Format (SED-1762) dated
- November 19, 1992. */
+ February 1994. */
#include "elf32-hppa.h"
-#include "libhppa.h"
-#include "aout/aout64.h"
#include "hppa_stubs.h"
-/* ELF/PA relocation howto entries. */
-
static bfd_reloc_status_type hppa_elf_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static unsigned long hppa_elf_relocate_insn
+static unsigned long hppa_elf_relocate_insn
PARAMS ((bfd *, asection *, unsigned long, unsigned long, long,
long, unsigned long, unsigned long, unsigned long));
-static void hppa_elf_relocate_unwind_table
- PARAMS ((bfd *, PTR, unsigned long, long, long,
- unsigned long, unsigned long));
-
-static long get_symbol_value PARAMS ((asymbol *));
static bfd_reloc_status_type hppa_elf_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **));
-static CONST reloc_howto_type * elf_hppa_reloc_type_lookup
- PARAMS ((bfd_arch_info_type *, bfd_reloc_code_real_type));
+static reloc_howto_type * elf_hppa_reloc_type_lookup
+ PARAMS ((bfd *, bfd_reloc_code_real_type));
+
+static boolean elf32_hppa_set_section_contents
+ PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
+
+static void elf32_hppa_info_to_howto
+ PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+
+static boolean elf32_hppa_backend_symbol_table_processing
+ PARAMS ((bfd *, elf_symbol_type *, unsigned int));
+
+static void elf32_hppa_backend_begin_write_processing
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void elf32_hppa_backend_final_write_processing
+ PARAMS ((bfd *, boolean));
+
+static void add_entry_to_symext_chain
+ PARAMS ((bfd *, unsigned int, unsigned int, symext_chainS **,
+ symext_chainS **));
+
+static void
+elf_hppa_tc_make_sections PARAMS ((bfd *, symext_chainS *));
+
+static boolean hppa_elf_is_local_label_name PARAMS ((bfd *, const char *));
+
+static boolean elf32_hppa_add_symbol_hook
+ PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
+ const char **, flagword *, asection **, bfd_vma *));
+
+static bfd_reloc_status_type elf32_hppa_bfd_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma, struct bfd_link_info *,
+ asection *, const char *, int));
+
+static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
+ PARAMS ((bfd *));
+
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static struct bfd_hash_entry *
+elf32_hppa_args_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static boolean
+elf32_hppa_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+
+static boolean
+elf32_hppa_stub_hash_table_init
+ PARAMS ((struct elf32_hppa_stub_hash_table *, bfd *,
+ struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *))));
+
+static boolean
+elf32_hppa_build_one_stub PARAMS ((struct bfd_hash_entry *, PTR));
+
+static boolean
+elf32_hppa_read_symext_info
+ PARAMS ((bfd *, Elf_Internal_Shdr *, struct elf32_hppa_args_hash_table *,
+ Elf_Internal_Sym *));
+
+static unsigned int elf32_hppa_size_of_stub
+ PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, const char *));
+
+static boolean elf32_hppa_arg_reloc_needed
+ PARAMS ((unsigned int, unsigned int, arg_reloc_type []));
+
+static void elf32_hppa_name_of_stub
+ PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, char *));
+
+static boolean elf32_hppa_size_symext PARAMS ((struct bfd_hash_entry *, PTR));
+
+static boolean elf32_hppa_link_output_symbol_hook
+ PARAMS ((bfd *, struct bfd_link_info *, const char *,
+ Elf_Internal_Sym *, asection *));
+
+/* ELF/PA relocation howto entries. */
static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] =
{
- {R_HPPA_NONE, 0, 3, 19, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_NONE"},
- {R_HPPA_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_32"},
- {R_HPPA_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_11"},
- {R_HPPA_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_14"},
- {R_HPPA_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_17"},
-{R_HPPA_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_L21"},
-{R_HPPA_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R11"},
-{R_HPPA_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R14"},
-{R_HPPA_R17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R17"},
- {R_HPPA_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LS21"},
- {R_HPPA_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS11"},
- {R_HPPA_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS14"},
- {R_HPPA_RS17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS17"},
- {R_HPPA_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LD21"},
- {R_HPPA_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD11"},
- {R_HPPA_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD14"},
- {R_HPPA_RD17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD17"},
- {R_HPPA_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LR21"},
- {R_HPPA_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR14"},
- {R_HPPA_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR17"},
- {R_HPPA_GOTOFF_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_11"},
- {R_HPPA_GOTOFF_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_14"},
- {R_HPPA_GOTOFF_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_L21"},
- {R_HPPA_GOTOFF_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_R11"},
- {R_HPPA_GOTOFF_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_R14"},
- {R_HPPA_GOTOFF_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LS21"},
- {R_HPPA_GOTOFF_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RS11"},
- {R_HPPA_GOTOFF_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RS14"},
- {R_HPPA_GOTOFF_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LD21"},
- {R_HPPA_GOTOFF_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RD11"},
- {R_HPPA_GOTOFF_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RD14"},
- {R_HPPA_GOTOFF_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LR21"},
- {R_HPPA_GOTOFF_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RR14"},
- {R_HPPA_ABS_CALL_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_11"},
- {R_HPPA_ABS_CALL_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_14"},
- {R_HPPA_ABS_CALL_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_17"},
- {R_HPPA_ABS_CALL_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_L21"},
- {R_HPPA_ABS_CALL_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R11"},
- {R_HPPA_ABS_CALL_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R14"},
- {R_HPPA_ABS_CALL_R17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R17"},
- {R_HPPA_ABS_CALL_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LS21"},
- {R_HPPA_ABS_CALL_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS11"},
- {R_HPPA_ABS_CALL_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS14"},
- {R_HPPA_ABS_CALL_RS17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS17"},
- {R_HPPA_ABS_CALL_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LD21"},
- {R_HPPA_ABS_CALL_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD11"},
- {R_HPPA_ABS_CALL_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD14"},
- {R_HPPA_ABS_CALL_RD17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD17"},
- {R_HPPA_ABS_CALL_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LR21"},
- {R_HPPA_ABS_CALL_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR14"},
- {R_HPPA_ABS_CALL_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR17"},
- {R_HPPA_PCREL_CALL_11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_11"},
- {R_HPPA_PCREL_CALL_14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_14"},
- {R_HPPA_PCREL_CALL_17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_17"},
- {R_HPPA_PCREL_CALL_12, 0, 3, 12, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_12"},
- {R_HPPA_PCREL_CALL_L21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_L21"},
- {R_HPPA_PCREL_CALL_R11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R11"},
- {R_HPPA_PCREL_CALL_R14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R14"},
- {R_HPPA_PCREL_CALL_R17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R17"},
- {R_HPPA_PCREL_CALL_LS21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LS21"},
- {R_HPPA_PCREL_CALL_RS11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS11"},
- {R_HPPA_PCREL_CALL_RS14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS14"},
- {R_HPPA_PCREL_CALL_RS17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS17"},
- {R_HPPA_PCREL_CALL_LD21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LD21"},
- {R_HPPA_PCREL_CALL_RD11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD11"},
- {R_HPPA_PCREL_CALL_RD14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD14"},
- {R_HPPA_PCREL_CALL_RD17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD17"},
- {R_HPPA_PCREL_CALL_LR21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LR21"},
- {R_HPPA_PCREL_CALL_RR14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR14"},
- {R_HPPA_PCREL_CALL_RR17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR17"},
- {R_HPPA_PLABEL_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_32"},
- {R_HPPA_PLABEL_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_11"},
- {R_HPPA_PLABEL_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_14"},
- {R_HPPA_PLABEL_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_L21"},
- {R_HPPA_PLABEL_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R11"},
- {R_HPPA_PLABEL_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R14"},
- {R_HPPA_DLT_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_32"},
- {R_HPPA_DLT_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_11"},
- {R_HPPA_DLT_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_14"},
- {R_HPPA_DLT_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_L21"},
- {R_HPPA_DLT_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R11"},
- {R_HPPA_DLT_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R14"},
- {R_HPPA_UNWIND_ENTRY, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRY"},
- {R_HPPA_UNWIND_ENTRIES, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRIES"},
- {R_HPPA_PUSH_CONST, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_CONST"},
- {R_HPPA_PUSH_PC, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PC"},
- {R_HPPA_PUSH_SYM, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_SYM"},
- {R_HPPA_PUSH_GOTOFF, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_GOTOFF"},
- {R_HPPA_PUSH_ABS_CALL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_ABS_CALL"},
- {R_HPPA_PUSH_PCREL_CALL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PCREL_CALL"},
- {R_HPPA_PUSH_PLABEL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PLABEL"},
-{R_HPPA_MAX, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MAX"},
-{R_HPPA_MIN, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MIN"},
-{R_HPPA_ADD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ADD"},
-{R_HPPA_SUB, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_SUB"},
- {R_HPPA_MULT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MULT"},
-{R_HPPA_DIV, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_DIV"},
-{R_HPPA_MOD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MOD"},
-{R_HPPA_AND, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_AND"},
- {R_HPPA_OR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_OR"},
-{R_HPPA_XOR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_XOR"},
-{R_HPPA_NOT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_NOT"},
- {R_HPPA_LSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LSHIFT"},
- {R_HPPA_ARITH_RSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ARITH_RSHIFT"},
- {R_HPPA_LOGIC_RSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LOGIC_RSHIFT"},
-{R_HPPA_EXPR_F, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_L"},
- {R_HPPA_EXPR_L, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_L"},
- {R_HPPA_EXPR_R, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_R"},
- {R_HPPA_EXPR_LS, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LS"},
- {R_HPPA_EXPR_RS, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RS"},
- {R_HPPA_EXPR_LD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LD"},
- {R_HPPA_EXPR_RD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RD"},
- {R_HPPA_EXPR_LR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LR"},
- {R_HPPA_EXPR_RR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RR"},
- {R_HPPA_EXPR_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_32"},
- {R_HPPA_EXPR_21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_21"},
- {R_HPPA_EXPR_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_11"},
- {R_HPPA_EXPR_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_14"},
- {R_HPPA_EXPR_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_17"},
- {R_HPPA_EXPR_12, 0, 3, 12, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_12"},
- {R_HPPA_STUB_CALL_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_STUB_CALL_17"},
- {R_HPPA_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_dont, NULL, "R_HPPA_UNIMPLEMENTED"},
+ {R_PARISC_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_NONE"},
+ /* The values in DIR32 are to placate the check in
+ _bfd_stab_section_find_nearest_line. */
+ {R_PARISC_DIR32, 0, 2, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR32", false, 0, 0xffffffff, false},
+ {R_PARISC_DIR21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR21L"},
+ {R_PARISC_DIR17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17R"},
+ {R_PARISC_DIR17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17F"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DIR14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR14R"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PCREL21L, 0, 0, 21, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL21L"},
+ {R_PARISC_PCREL17R, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17R"},
+ {R_PARISC_PCREL17F, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17F"},
+ {R_PARISC_PCREL17C, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17C"},
+ {R_PARISC_PCREL14R, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14R"},
+ {R_PARISC_PCREL14F, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DPREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DPREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14R"},
+ {R_PARISC_DPREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14R"},
+ {R_PARISC_DLTREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTIND21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTIND14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14R"},
+ {R_PARISC_DLTIND14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14F"},
+
+ {R_PARISC_SETBASE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_SETBASE"},
+ {R_PARISC_BASEREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL32"},
+ {R_PARISC_BASEREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL21L"},
+ {R_PARISC_BASEREL17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17R"},
+ {R_PARISC_BASEREL17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17F"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_BASEREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14R"},
+ {R_PARISC_BASEREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_TEXTREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_TEXTREL32"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DATAREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLABEL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL32"},
+ {R_PARISC_PLABEL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLABEL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL14R"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLTIND21L, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLTIND14R, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14R"},
+ {R_PARISC_PLTIND14F, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14F"},
+
+
+ {R_PARISC_COPY, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_COPY"},
+ {R_PARISC_GLOB_DAT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_GLOB_DAT"},
+ {R_PARISC_JMP_SLOT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_JMP_SLOT"},
+ {R_PARISC_RELATIVE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_RELATIVE"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_dont, NULL, "R_PARISC_UNIMPLEMENTED"},
+};
+
+/* Where (what register type) is an argument comming from? */
+typedef enum
+{
+ AR_NO,
+ AR_GR,
+ AR_FR,
+ AR_FU,
+ AR_FPDBL1,
+ AR_FPDBL2,
+} arg_location;
+
+/* Horizontal represents the callee's argument location information,
+ vertical represents caller's argument location information. Value at a
+ particular X,Y location represents what (if any) argument relocation
+ needs to be performed to make caller and callee agree. */
+
+static CONST arg_reloc_type arg_mismatches[6][6] =
+{
+ {NO, NO, NO, NO, NO, NO},
+ {NO, NO, GF, NO, GD, NO},
+ {NO, FG, NO, NO, NO, NO},
+ {NO, NO, NO, NO, NO, NO},
+ {NO, DG, NO, NO, NO, NO},
+ {NO, DG, NO, NO, NO, NO},
+};
+
+/* Likewise, but reversed for the return value. */
+static CONST arg_reloc_type ret_mismatches[6][6] =
+{
+ {NO, NO, NO, NO, NO, NO},
+ {NO, NO, FG, NO, DG, NO},
+ {NO, GF, NO, NO, NO, NO},
+ {NO, NO, NO, NO, NO, NO},
+ {NO, GD, NO, NO, NO, NO},
+ {NO, GD, NO, NO, NO, NO},
};
+/* Misc static crud for symbol extension records. */
static symext_chainS *symext_rootP;
static symext_chainS *symext_lastP;
-static boolean symext_chain_built;
-static long global_value;
-static long GOT_value;
-static asymbol *global_symbol;
-static int global_sym_defined;
+static bfd_size_type symext_chain_size;
+
+/* FIXME: We should be able to try this static variable! */
+static bfd_byte *symextn_contents;
+
+
+/* For linker stub hash tables. */
+#define elf32_hppa_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_stub_hash_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+#define elf32_hppa_stub_hash_traverse(table, func, info) \
+ (bfd_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* For linker args hash tables. */
+#define elf32_hppa_args_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_args_hash_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+#define elf32_hppa_args_hash_traverse(table, func, info) \
+ (bfd_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
+ (info)))
+
+#define elf32_hppa_args_hash_table_init(table, newfunc) \
+ (bfd_hash_table_init \
+ (&(table)->root, \
+ (struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *, \
+ struct bfd_hash_table *, \
+ const char *))) (newfunc)))
+
+/* For HPPA linker hash table. */
+
+#define elf32_hppa_link_hash_lookup(table, string, create, copy, follow)\
+ ((struct elf32_hppa_link_hash_entry *) \
+ elf_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+#define elf32_hppa_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the PA ELF linker hash table from a link_info structure. */
+
+#define elf32_hppa_hash_table(p) \
+ ((struct elf32_hppa_link_hash_table *) ((p)->hash))
+
+
+/* Extract specific argument location bits for WHICH from
+ the full argument location in AR. */
+#define EXTRACT_ARBITS(ar, which) ((ar) >> (8 - ((which) * 2))) & 3
+
+/* Assorted hash table functions. */
+
+/* Initialize an entry in the stub hash table. */
+
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf32_hppa_stub_hash_entry *ret;
+
+ ret = (struct elf32_hppa_stub_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+
+ if (ret)
+ {
+ /* Initialize the local fields. */
+ ret->offset = 0;
+ ret->target_value = 0;
+ ret->target_section = NULL;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Initialize a stub hash table. */
+
+static boolean
+elf32_hppa_stub_hash_table_init (table, stub_bfd, newfunc)
+ struct elf32_hppa_stub_hash_table *table;
+ bfd *stub_bfd;
+ struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *));
+{
+ table->offset = 0;
+ table->location = 0;
+ table->stub_bfd = stub_bfd;
+ return (bfd_hash_table_init (&table->root, newfunc));
+}
+
+/* Initialize an entry in the argument location hash table. */
+
+static struct bfd_hash_entry *
+elf32_hppa_args_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf32_hppa_args_hash_entry *ret;
+
+ ret = (struct elf32_hppa_args_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = ((struct elf32_hppa_args_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_args_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf32_hppa_args_hash_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+
+ /* Initialize the local fields. */
+ if (ret)
+ ret->arg_bits = 0;
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Create the derived linker hash table. The PA ELF port uses the derived
+ hash table to keep information specific to the PA ELF linker (without
+ using static variables). */
+
+static struct bfd_link_hash_table *
+elf32_hppa_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct elf32_hppa_link_hash_table *ret;
+
+ ret = ((struct elf32_hppa_link_hash_table *)
+ bfd_alloc (abfd, sizeof (struct elf32_hppa_link_hash_table)));
+ if (ret == NULL)
+ return NULL;
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ _bfd_elf_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return NULL;
+ }
+ ret->stub_hash_table = NULL;
+ ret->args_hash_table = NULL;
+ ret->output_symbol_count = 0;
+ ret->global_value = 0;
+ ret->global_sym_defined = 0;
-static symext_entryS *symextn_contents;
-static unsigned int symextn_contents_real_size;
+ return &ret->root.root;
+}
/* Relocate the given INSN given the various input parameters.
{
unsigned char opcode = get_opcode (insn);
long constant_value;
- unsigned arg_reloc;
switch (opcode)
{
case BL:
case BE:
case BLE:
- arg_reloc = HPPA_R_ARG_RELOC (r_addend);
-
/* XXX computing constant_value is not needed??? */
constant_value = assemble_17 ((insn & 0x001f0000) >> 16,
(insn & 0x00001ffc) >> 2,
}
}
-/* Relocate a single unwind entry, or an entire table of them. */
+/* Relocate an HPPA ELF section. */
-static void
-hppa_elf_relocate_unwind_table (abfd, data, address, sym_value,
- r_addend, r_type, r_field)
- bfd *abfd;
- PTR data;
- unsigned long address;
- long sym_value;
- long r_addend;
- unsigned long r_type;
- unsigned long r_field;
+static boolean
+elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
{
- bfd_byte *hit_data = address + (bfd_byte *) data;
- long start_offset;
- long end_offset;
- long relocated_value;
- int i;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
- switch (r_type)
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
{
- case R_HPPA_UNWIND_ENTRY:
- /* Need to relocate the first two 32bit fields in the unwind. They
- correspond to a function's start and end address. */
- start_offset = bfd_get_32 (abfd, hit_data);
- relocated_value = hppa_field_adjust (sym_value, start_offset, r_field);
- bfd_put_32 (abfd, relocated_value, hit_data);
-
- hit_data += sizeof (unsigned long);
- end_offset = bfd_get_32 (abfd, hit_data);
- relocated_value = hppa_field_adjust (sym_value, end_offset, r_field);
- bfd_put_32 (abfd, relocated_value, hit_data);
- break;
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char *sym_name;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ howto = elf_hppa_howto_table + r_type;
- case R_HPPA_UNWIND_ENTRIES:
- /* Relocate a mass of unwind entires. The count is passed in r_addend
- (who's braindamaged idea was this anyway? */
- for (i = 0; i < r_addend; i++, hit_data += 3 * sizeof (unsigned long))
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ if (info->relocateable)
{
- unsigned int adjustment;
- /* Adjust the first 32bit field in the unwind entry. It's
- the starting offset of a function. */
- start_offset = bfd_get_32 (abfd, hit_data);
- bfd_put_32 (abfd, sym_value, hit_data);
- adjustment = sym_value - start_offset;
-
- /* Now adjust the second 32bit field, it's the ending offset
- of a function. */
- hit_data += sizeof (unsigned long);
- end_offset = adjustment + bfd_get_32 (abfd, hit_data);
- bfd_put_32 (abfd, end_offset, hit_data);
-
- /* Prepare for the next iteration. */
- start_offset = bfd_get_32 (abfd,
- hit_data + 3 * sizeof (unsigned long));
- sym_value = start_offset + adjustment;
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sym_sec = local_sections[r_symndx];
+ rel->r_addend += sym_sec->output_offset;
+ }
+ }
+
+ continue;
}
- break;
- default:
- abort ();
- }
-}
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sym_sec = local_sections[r_symndx];
+ relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value)
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ long indx;
+
+ indx = r_symndx - symtab_hdr->sh_info;
+ h = elf_sym_hashes (input_bfd)[indx];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ break;
+ }
+ }
+
+ if (h != NULL)
+ sym_name = h->root.root.string;
+ else
+ {
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (sym_name == NULL)
+ return false;
+ if (*sym_name == '\0')
+ sym_name = bfd_section_name (input_bfd, sym_sec);
+ }
-/* Return the relocated value of the given symbol. */
+ /* If args_hash_table is NULL, then we have encountered some
+ kind of link error (ex. undefined symbols). Do not try to
+ apply any relocations, continue the loop so we can notify
+ the user of several errors in a single attempted link. */
+ if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
+ continue;
-static long
-get_symbol_value (symbol)
- asymbol *symbol;
-{
- if (symbol == NULL
- || symbol->section == &bfd_com_section)
- return 0;
- else
- return symbol->value + symbol->section->output_section->vma
- + symbol->section->output_offset;
+ r = elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents,
+ rel->r_offset, relocation,
+ rel->r_addend, info, sym_sec,
+ sym_name, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ /* This can happen for DP relative relocs if $global$ is
+ undefined. This is a panic situation so we don't try
+ to continue. */
+ case bfd_reloc_undefined:
+ case bfd_reloc_notsupported:
+ if (!((*info->callbacks->undefined_symbol)
+ (info, "$global$", input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ return false;
+ case bfd_reloc_dangerous:
+ {
+ /* We use this return value to indicate that we performed
+ a "dangerous" relocation. This doesn't mean we did
+ the wrong thing, it just means there may be some cleanup
+ that needs to be done here.
+
+ In particular we had to swap the last call insn and its
+ delay slot. If the delay slot insn needed a relocation,
+ then we'll need to adjust the next relocation entry's
+ offset to account for the fact that the insn moved.
+
+ This hair wouldn't be necessary if we inserted stubs
+ between procedures and used a "bl" to get to the stub. */
+ if (rel != relend)
+ {
+ Elf_Internal_Rela *next_rel = rel + 1;
+
+ if (rel->r_offset + 4 == next_rel->r_offset)
+ next_rel->r_offset -= 4;
+ }
+ break;
+ }
+ default:
+ case bfd_reloc_outofrange:
+ case bfd_reloc_overflow:
+ {
+ if (!((*info->callbacks->reloc_overflow)
+ (info, sym_name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ }
+ break;
+ }
+ }
+ }
+
+ return true;
}
/* Return one (or more) BFD relocations which implement the base
- relocation with modifications based on format and field.
-
- FIXME: Needs a decl in elf32-hppa.h. */
+ relocation with modifications based on format and field. */
elf32_hppa_reloc_type **
-hppa_elf_gen_reloc_type (abfd, base_type, format, field)
+hppa_elf_gen_reloc_type (abfd, base_type, format, field, ignore, sym)
bfd *abfd;
elf32_hppa_reloc_type base_type;
int format;
int field;
+ int ignore;
+ asymbol *sym;
{
elf32_hppa_reloc_type *finaltype;
elf32_hppa_reloc_type **final_types;
/* Allocate slots for the BFD relocation. */
- final_types = (elf32_hppa_reloc_type **)
- bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type *) * 2);
- BFD_ASSERT (final_types != 0); /* FIXME */
+ final_types = ((elf32_hppa_reloc_type **)
+ bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type *) * 2));
+ if (final_types == NULL)
+ return NULL;
/* Allocate space for the relocation itself. */
- finaltype = (elf32_hppa_reloc_type *)
- bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type));
- BFD_ASSERT (finaltype != 0); /* FIXME */
+ finaltype = ((elf32_hppa_reloc_type *)
+ bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type)));
+ if (finaltype == NULL)
+ return NULL;
/* Some reasonable defaults. */
final_types[0] = finaltype;
switch (base_type)
{
case R_HPPA:
+ case R_HPPA_ABS_CALL:
switch (format)
{
- case 11:
- switch (field)
- {
- case e_fsel:
- final_type = R_HPPA_11;
- break;
- case e_rsel:
- final_type = R_HPPA_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD11;
- break;
- case e_psel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- case e_tsel:
- final_type = R_HPPA_DLT_11;
- break;
- case e_rtsel:
- final_type = R_HPPA_DLT_R11;
- break;
- default:
- abort ();
- break;
- }
- break;
-
case 14:
switch (field)
{
case e_rsel:
- final_type = R_HPPA_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD14;
- break;
case e_rrsel:
- final_type = R_HPPA_RR14;
- break;
- case e_psel:
- final_type = R_HPPA_PLABEL_14;
+ final_type = R_PARISC_DIR14R;
break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R14;
+ case e_rtsel:
+ final_type = R_PARISC_DLTREL14R;
break;
case e_tsel:
- final_type = R_HPPA_DLT_14;
+ final_type = R_PARISC_DLTREL14F;
break;
- case e_rtsel:
- final_type = R_HPPA_DLT_R14;
+ case e_rpsel:
+ final_type = R_PARISC_PLABEL14R;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
switch (field)
{
case e_fsel:
- final_type = R_HPPA_17;
+ final_type = R_PARISC_DIR17F;
break;
case e_rsel:
- final_type = R_HPPA_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD17;
- break;
case e_rrsel:
- final_type = R_HPPA_RR17;
+ final_type = R_PARISC_DIR17R;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
switch (field)
{
case e_lsel:
- final_type = R_HPPA_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_LD21;
- break;
case e_lrsel:
- final_type = R_HPPA_LR21;
- break;
- case e_lpsel:
- final_type = R_HPPA_PLABEL_L21;
+ final_type = R_PARISC_DIR21L;
break;
case e_ltsel:
- final_type = R_HPPA_PLABEL_L21;
+ final_type = R_PARISC_DLTREL21L;
break;
- default:
- abort ();
+ case e_lpsel:
+ final_type = R_PARISC_PLABEL21L;
break;
+ default:
+ return NULL;
}
break;
switch (field)
{
case e_fsel:
- final_type = R_HPPA_32;
+ final_type = R_PARISC_DIR32;
break;
case e_psel:
- final_type = R_HPPA_PLABEL_32;
- break;
- case e_tsel:
- final_type = R_HPPA_DLT_32;
+ final_type = R_PARISC_PLABEL32;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
case R_HPPA_GOTOFF:
switch (format)
{
- case 11:
- switch (field)
- {
- case e_rsel:
- final_type = R_HPPA_GOTOFF_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_GOTOFF_11;
- break;
- default:
- abort ();
- break;
- }
- break;
-
case 14:
switch (field)
{
case e_rsel:
- final_type = R_HPPA_GOTOFF_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD14;
- break;
case e_rrsel:
- final_type = R_HPPA_GOTOFF_RR14;
+ final_type = R_PARISC_DPREL14R;
break;
case e_fsel:
- final_type = R_HPPA_GOTOFF_14;
+ final_type = R_PARISC_DPREL14F;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
case 21:
switch (field)
{
- case e_lsel:
- final_type = R_HPPA_GOTOFF_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_GOTOFF_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_GOTOFF_LD21;
- break;
case e_lrsel:
- final_type = R_HPPA_GOTOFF_LR21;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- default:
- abort ();
- break;
- }
- break;
-
-
- case R_HPPA_PCREL_CALL:
- switch (format)
- {
- case 11:
- switch (field)
- {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_11;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 14:
- switch (field)
- {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_14;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 17:
- switch (field)
- {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR17;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_17;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 21:
- switch (field)
- {
case e_lsel:
- final_type = R_HPPA_PCREL_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_PCREL_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_PCREL_CALL_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_PCREL_CALL_LR21;
+ final_type = R_PARISC_DPREL21L;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
- case R_HPPA_PLABEL:
- switch (format)
- {
- case 11:
- switch (field)
- {
- case e_fsel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 14:
- switch (field)
- {
- case e_fsel:
- final_type = R_HPPA_PLABEL_14;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R14;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 21:
- switch (field)
- {
- case e_lsel:
- final_type = R_HPPA_PLABEL_L21;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- case 32:
- switch (field)
- {
- case e_fsel:
- final_type = R_HPPA_PLABEL_32;
- break;
- default:
- abort ();
- break;
- }
- break;
-
- default:
- abort ();
- break;
- }
-
-
- case R_HPPA_ABS_CALL:
+ case R_HPPA_PCREL_CALL:
switch (format)
{
- case 11:
- switch (field)
- {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_11;
- break;
- default:
- abort ();
- break;
- }
- break;
-
case 14:
switch (field)
{
case e_rsel:
- final_type = R_HPPA_ABS_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD14;
- break;
case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR14;
+ final_type = R_PARISC_PCREL14R;
break;
case e_fsel:
- final_type = R_HPPA_ABS_CALL_14;
+ final_type = R_PARISC_PCREL14F;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
switch (field)
{
case e_rsel:
- final_type = R_HPPA_ABS_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD17;
- break;
case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR17;
+ final_type = R_PARISC_PCREL17R;
break;
case e_fsel:
- final_type = R_HPPA_ABS_CALL_17;
+ final_type = R_PARISC_PCREL17F;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
switch (field)
{
case e_lsel:
- final_type = R_HPPA_ABS_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_ABS_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_ABS_CALL_LD21;
- break;
case e_lrsel:
- final_type = R_HPPA_ABS_CALL_LR21;
+ final_type = R_PARISC_PCREL21L;
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
default:
- abort ();
- break;
+ return NULL;
}
break;
-
- case R_HPPA_UNWIND:
- final_type = R_HPPA_UNWIND_ENTRY;
- break;
-
-
- case R_HPPA_COMPLEX:
- case R_HPPA_COMPLEX_PCREL_CALL:
- case R_HPPA_COMPLEX_ABS_CALL:
- /* The code originally here was horribly broken, and apparently
- never used. Zap it. When we need complex relocations rewrite
- it correctly! */
- abort ();
- break;
-
default:
- final_type = base_type;
- break;
+ return NULL;
}
return final_types;
#undef final_type
+/* Set the contents of a particular section at a particular location. */
+
+static boolean
+elf32_hppa_set_section_contents (abfd, section, location, offset, count)
+ bfd *abfd;
+ sec_ptr section;
+ PTR location;
+ file_ptr offset;
+ bfd_size_type count;
+{
+ /* Ignore write requests for the symbol extension section until we've
+ had the chance to rebuild it ourselves. */
+ if (!strcmp (section->name, ".PARISC.symextn") && !symext_chain_size)
+ return true;
+ else
+ return _bfd_elf_set_section_contents (abfd, section, location,
+ offset, count);
+}
+
+/* Translate from an elf into field into a howto relocation pointer. */
+
+static void
+elf32_hppa_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd;
+ arelent *cache_ptr;
+ Elf32_Internal_Rela *dst;
+{
+ BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_PARISC_UNIMPLEMENTED);
+ cache_ptr->howto = &elf_hppa_howto_table[ELF32_R_TYPE (dst->r_info)];
+}
+
-/* Actually perform a relocation. */
+/* Actually perform a relocation. NOTE this is (mostly) superceeded
+ by elf32_hppa_bfd_final_link_relocate which is called by the new
+ fast linker. */
static bfd_reloc_status_type
hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
bfd *output_bfd;
char **error_message;
{
- unsigned long insn;
- long sym_value = 0;
- unsigned long addr = reloc_entry->address;
- bfd_byte *hit_data = addr + (bfd_byte *) data;
- unsigned long r_type = reloc_entry->howto->type;
- unsigned long r_field = e_fsel;
- boolean r_pcrel = reloc_entry->howto->pc_relative;
- unsigned r_format = reloc_entry->howto->bitsize;
- long r_addend = reloc_entry->addend;
-
- /* If only performing a partial link, get out early. */
+ /* It is no longer valid to call hppa_elf_reloc when creating
+ a final executable. */
if (output_bfd)
{
reloc_entry->address += input_section->output_offset;
+
+ /* Work around lossage in generic elf code to write relocations.
+ (maps different section symbols into the same symbol index). */
+ if ((symbol_in->flags & BSF_SECTION_SYM)
+ && symbol_in->section)
+ reloc_entry->addend += symbol_in->section->output_offset;
return bfd_reloc_ok;
}
+ else
+ {
+ *error_message = (char *) "Unsupported call to hppa_elf_reloc";
+ return bfd_reloc_notsupported;
+ }
+}
- /* If performing final link and the symbol we're relocating against
- is undefined, then return an error. */
- if (symbol_in && symbol_in->section == &bfd_und_section)
- return bfd_reloc_undefined;
+/* Actually perform a relocation as part of a final link. This can get
+ rather hairy when linker stubs are needed. */
- /* Get the final relocated value. */
- sym_value = get_symbol_value (symbol_in);
+static bfd_reloc_status_type
+elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents, offset, value,
+ addend, info, sym_sec, sym_name, is_local)
+ reloc_howto_type *howto;
+ bfd *input_bfd;
+ bfd *output_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ bfd_vma offset;
+ bfd_vma value;
+ bfd_vma addend;
+ struct bfd_link_info *info;
+ asection *sym_sec;
+ const char *sym_name;
+ int is_local;
+{
+ unsigned long insn;
+ unsigned long r_type = howto->type;
+ unsigned long r_format = howto->bitsize;
+ unsigned long r_field = e_fsel;
+ bfd_byte *hit_data = contents + offset;
+ boolean r_pcrel = howto->pc_relative;
- /* Compute the value of $global$.
- FIXME: None of this should be necessary. $global$ is just a
- marker and shouldn't really figure into these computations.
+ insn = bfd_get_32 (input_bfd, hit_data);
- Once that's fixed we'll need to teach this backend to change
- DP-relative relocations involving symbols in the text section
- to be simple absolute relocations. */
- if (!global_sym_defined)
+ /* Make sure we have a value for $global$. FIXME isn't this effectively
+ just like the gp pointer on MIPS? Can we use those routines for this
+ purpose? */
+ if (!elf32_hppa_hash_table (info)->global_sym_defined)
{
- if (global_symbol)
- {
- global_value = (global_symbol->value
- + global_symbol->section->output_section->vma
- + global_symbol->section->output_offset);
- GOT_value = global_value;
- global_sym_defined++;
- }
+ struct elf_link_hash_entry *h;
+ asection *sec;
+
+ h = elf_link_hash_lookup (elf_hash_table (info), "$global$", false,
+ false, false);
+
+ /* If there isn't a $global$, then we're in deep trouble. */
+ if (h == NULL)
+ return bfd_reloc_notsupported;
+
+ /* If $global$ isn't a defined symbol, then we're still in deep
+ trouble. */
+ if (h->root.type != bfd_link_hash_defined)
+ return bfd_reloc_undefined;
+
+ sec = h->root.u.def.section;
+ elf32_hppa_hash_table (info)->global_value = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ elf32_hppa_hash_table (info)->global_sym_defined = 1;
}
- /* Get the instruction word. */
- insn = bfd_get_32 (abfd, hit_data);
-
- /* Relocate the value based on one of the basic relocation types
-
- basic_type_1: relocation is relative to $global$
- basic_type_2: relocation is relative to the current GOT
- basic_type_3: relocation is an absolute call
- basic_type_4: relocation is an PC-relative call
- basic_type_5: relocation is plabel reference
- basic_type_6: relocation is an unwind table relocation
- extended_type: unimplemented */
-
switch (r_type)
{
- case R_HPPA_NONE:
+ case R_PARISC_NONE:
break;
- /* Handle all the basic type 1 relocations. */
- case R_HPPA_32:
- case R_HPPA_11:
- case R_HPPA_14:
- case R_HPPA_17:
+ case R_PARISC_DIR32:
+ case R_PARISC_DIR17F:
+ case R_PARISC_PCREL17C:
r_field = e_fsel;
goto do_basic_type_1;
- case R_HPPA_L21:
- r_field = e_lsel;
- goto do_basic_type_1;
- case R_HPPA_R11:
- case R_HPPA_R14:
- case R_HPPA_R17:
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_LS21:
- r_field = e_lssel;
- goto do_basic_type_1;
- case R_HPPA_RS11:
- case R_HPPA_RS14:
- case R_HPPA_RS17:
- r_field = e_ldsel;
- goto do_basic_type_1;
- case R_HPPA_LD21:
- r_field = e_ldsel;
+ case R_PARISC_DIR21L:
+ case R_PARISC_PCREL21L:
+ r_field = e_lrsel;
goto do_basic_type_1;
- case R_HPPA_RD11:
- case R_HPPA_RD14:
- case R_HPPA_RD17:
- r_field = e_rdsel;
+ case R_PARISC_DIR17R:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_PCREL14R:
+ r_field = e_rrsel;
goto do_basic_type_1;
- case R_HPPA_LR21:
+
+ /* For all the DP relative relocations, we need to examine the symbol's
+ section. If it's a code section, then "data pointer relative" makes
+ no sense. In that case we don't adjust the "value", and for 21 bit
+ addil instructions, we change the source addend register from %dp to
+ %r0. */
+ case R_PARISC_DPREL21L:
r_field = e_lrsel;
+ if (sym_sec->flags & SEC_CODE)
+ {
+ if ((insn & 0xfc000000) >> 26 == 0xa
+ && (insn & 0x03e00000) >> 21 == 0x1b)
+ insn &= ~0x03e00000;
+ }
+ else
+ value -= elf32_hppa_hash_table (info)->global_value;
goto do_basic_type_1;
- case R_HPPA_RR14:
- case R_HPPA_RR17:
+ case R_PARISC_DPREL14R:
r_field = e_rrsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+ case R_PARISC_DPREL14F:
+ r_field = e_fsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
- do_basic_type_1:
- insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
- sym_value, r_addend, r_format,
- r_field, r_pcrel);
- break;
+ /* These cases are separate as they may involve a lot more work
+ to deal with linker stubs. */
+ case R_PARISC_PLABEL32:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PCREL17F:
+ {
+ bfd_vma location;
+ unsigned int len, caller_args, callee_args;
+ arg_reloc_type arg_reloc_types[5];
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ struct elf32_hppa_args_hash_entry *args_hash;
+ char *new_name, *stub_name;
+
+ /* Get the field selector right. We'll need it in a minute. */
+ if (r_type == R_PARISC_PCREL17F
+ || r_type == R_PARISC_PLABEL32)
+ r_field = e_fsel;
+ else if (r_type == R_PARISC_PLABEL21L)
+ r_field = e_lrsel;
+ else if (r_type == R_PARISC_PLABEL14R)
+ r_field = e_rrsel;
+
+ /* Find out where we are and where we're going. */
+ location = (offset +
+ input_section->output_offset +
+ input_section->output_section->vma);
+
+ /* Now look for the argument relocation bits associated with the
+ target. */
+ len = strlen (sym_name) + 1;
+ if (is_local)
+ len += 9;
+ new_name = bfd_malloc (len);
+ if (!new_name)
+ return bfd_reloc_notsupported;
+ strcpy (new_name, sym_name);
+
+ /* Local symbols have unique IDs. */
+ if (is_local)
+ sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
+
+ args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
+
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ new_name, false, false);
+ if (args_hash == NULL)
+ callee_args = 0;
+ else
+ callee_args = args_hash->arg_bits;
+
+ /* If this is a CALL relocation, then get the caller's bits
+ from the addend. Else use the magic 0x155 value for PLABELS.
+
+ Also we don't care about the destination (value) for PLABELS. */
+ if (r_type == R_PARISC_PCREL17F)
+ caller_args = HPPA_R_ARG_RELOC (addend);
+ else
+ {
+ caller_args = 0x155;
+ location = value;
+ }
- /* Handle all the basic type 2 relocations. */
- case R_HPPA_GOTOFF_11:
- case R_HPPA_GOTOFF_14:
- r_field = e_fsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_L21:
- r_field = e_lsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_R11:
- case R_HPPA_GOTOFF_R14:
- r_field = e_rsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LS21:
- r_field = e_lssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RS11:
- case R_HPPA_GOTOFF_RS14:
- r_field = e_rssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LD21:
- r_field = e_ldsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RD11:
- case R_HPPA_GOTOFF_RD14:
- r_field = e_rdsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LR21:
- r_field = e_lrsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RR14:
- r_field = e_rrsel;
+ /* Any kind of linker stub needed? */
+ if (((int)(value - location) > 0x3ffff)
+ || ((int)(value - location) < (int)0xfffc0000)
+ || elf32_hppa_arg_reloc_needed (caller_args, callee_args,
+ arg_reloc_types))
+ {
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ asection *stub_section;
- do_basic_type_2:
- sym_value -= GOT_value;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
- sym_value, r_addend, r_format,
- r_field, r_pcrel);
- break;
+ /* Build a name for the stub. */
- /* Handle all the basic type 3 relocations. */
- case R_HPPA_ABS_CALL_11:
- case R_HPPA_ABS_CALL_14:
- case R_HPPA_ABS_CALL_17:
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_L21:
- r_field = e_lsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R11:
- case R_HPPA_ABS_CALL_R14:
- case R_HPPA_ABS_CALL_R17:
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LS21:
- r_field = e_lssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS11:
- case R_HPPA_ABS_CALL_RS14:
- case R_HPPA_ABS_CALL_RS17:
- r_field = e_rssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LD21:
- r_field = e_ldsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD11:
- case R_HPPA_ABS_CALL_RD14:
- case R_HPPA_ABS_CALL_RD17:
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LR21:
- r_field = e_lrsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RR14:
- case R_HPPA_ABS_CALL_RR17:
- r_field = e_rrsel;
+ len = strlen (new_name);
+ len += 23;
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ return bfd_reloc_notsupported;
+ elf32_hppa_name_of_stub (caller_args, callee_args,
+ location, value, stub_name);
+ strcat (stub_name, new_name);
+ free (new_name);
- do_basic_type_3:
- insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
- sym_value, r_addend, r_format,
- r_field, r_pcrel);
- break;
+ stub_hash_table = elf32_hppa_hash_table (info)->stub_hash_table;
- /* Handle all the basic type 4 relocations. */
- case R_HPPA_PCREL_CALL_11:
- case R_HPPA_PCREL_CALL_14:
- case R_HPPA_PCREL_CALL_17:
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_L21:
- r_field = e_lsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R11:
- case R_HPPA_PCREL_CALL_R14:
- case R_HPPA_PCREL_CALL_R17:
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LS21:
- r_field = e_lssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS11:
- case R_HPPA_PCREL_CALL_RS14:
- case R_HPPA_PCREL_CALL_RS17:
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LD21:
- r_field = e_ldsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD11:
- case R_HPPA_PCREL_CALL_RD14:
- case R_HPPA_PCREL_CALL_RD17:
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LR21:
- r_field = e_lrsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RR14:
- case R_HPPA_PCREL_CALL_RR17:
- r_field = e_rrsel;
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
- do_basic_type_4:
- insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
- sym_value, r_addend, r_format,
- r_field, r_pcrel);
- break;
+ /* We're done with that name. */
+ free (stub_name);
- /* Handle all the basic type 5 relocations. */
- case R_HPPA_PLABEL_32:
- case R_HPPA_PLABEL_11:
- case R_HPPA_PLABEL_14:
- r_field = e_fsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_L21:
- r_field = e_lsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_R11:
- case R_HPPA_PLABEL_R14:
- r_field = e_rsel;
- do_basic_type_5:
- insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
- sym_value, r_addend, r_format,
- r_field, r_pcrel);
- break;
+ /* The stub BFD only has one section. */
+ stub_section = stub_hash_table->stub_bfd->sections;
- /* Handle all basic type 6 relocations. */
- case R_HPPA_UNWIND_ENTRY:
- case R_HPPA_UNWIND_ENTRIES:
- hppa_elf_relocate_unwind_table (abfd, data, addr,
- sym_value, r_addend,
- r_type, r_field);
- return bfd_reloc_ok;
+ if (stub_hash != NULL)
+ {
- /* This is a linker internal relocation. */
- case R_HPPA_STUB_CALL_17:
- /* This relocation is for a branch to a long branch stub.
- Change instruction to a BLE,N. It may also be necessary
- to interchange the branch and its delay slot.
- The original instruction stream is
-
- bl <foo>,r ; call foo using register r as
- ; the return pointer
- XXX ; delay slot instruction
-
- The new instruction stream will be:
-
- XXX ; delay slot instruction
- ble <foo_stub> ; call the long call stub for foo
- ; using r31 as the return pointer
-
- This braindamage is necessary because the compiler may put
- an instruction which uses %r31 in the delay slot of the original
- call. By changing the call instruction from a "bl" to a "ble"
- %r31 gets clobbered before the delay slot executes. This
- also means the stub has to play funny games to make sure
- we return to the instruction just after the BLE rather than
- two instructions after the BLE.
-
- We do not interchange the branch and delay slot if the delay
- slot was already nullified, or if the instruction in the delay
- slot modifies the return pointer to avoid an unconditional
- jump after the call returns (GCC optimization).
-
- None of this horseshit would be necessary if we put the
- stubs between functions and just redirected the "bl" to
- the stub. Live and learn. */
-
- /* Is this instruction nullified? (does this ever happen?) */
- if (insn & 2)
- {
- insn = BLE_N_XXX_0_0;
- bfd_put_32 (abfd, insn, hit_data);
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr, sym_value, r_addend,
- r_format, r_field, r_pcrel);
- }
- else
- {
- /* So much for the trivial case... */
- unsigned long old_delay_slot_insn = bfd_get_32 (abfd, hit_data + 4);
- unsigned rtn_reg = (insn & 0x03e00000) >> 21;
-
- if (get_opcode (old_delay_slot_insn) == LDO)
- {
- unsigned ldo_src_reg = (old_delay_slot_insn & 0x03e00000) >> 21;
- unsigned ldo_target_reg = (old_delay_slot_insn & 0x001f0000) >> 16;
-
- /* If the target of the LDO is the same as the return
- register then there is no reordering. We can leave the
- instuction as a non-nullified BLE in this case.
-
- FIXME: This test looks wrong. If we had a ble using
- ldo_target_reg as the *source* we'd fuck this up. */
- if (ldo_target_reg == rtn_reg)
- {
- unsigned long new_delay_slot_insn = old_delay_slot_insn;
-
- BFD_ASSERT (ldo_src_reg == ldo_target_reg);
- new_delay_slot_insn &= 0xfc00ffff;
- new_delay_slot_insn |= ((31 << 21) | (31 << 16));
- bfd_put_32 (abfd, new_delay_slot_insn, hit_data + 4);
- insn = BLE_XXX_0_0;
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr, sym_value, r_addend,
- r_format, r_field, r_pcrel);
- bfd_put_32 (abfd, insn, hit_data);
- return bfd_reloc_ok;
+ if (r_type == R_PARISC_PCREL17F)
+ {
+ unsigned long delay_insn;
+ unsigned int opcode, rtn_reg, ldo_target_reg, ldo_src_reg;
+
+ /* We'll need to peek at the next insn. */
+ delay_insn = bfd_get_32 (input_bfd, hit_data + 4);
+ opcode = get_opcode (delay_insn);
+
+ /* We also need to know the return register for this
+ call. */
+ rtn_reg = (insn & 0x03e00000) >> 21;
+
+ ldo_src_reg = (delay_insn & 0x03e00000) >> 21;
+ ldo_target_reg = (delay_insn & 0x001f0000) >> 16;
+
+ /* Munge up the value and other parameters for
+ hppa_elf_relocate_insn. */
+
+ value = (stub_hash->offset
+ + stub_section->output_offset
+ + stub_section->output_section->vma);
+
+ r_format = 17;
+ r_field = e_fsel;
+ r_pcrel = 0;
+ addend = 0;
+
+ /* We need to peek at the delay insn and determine if
+ we'll need to swap the branch and its delay insn. */
+ if ((insn & 2)
+ || (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ || (delay_insn == 0x08000240))
+ {
+ /* No need to swap the branch and its delay slot, but
+ we do need to make sure to jump past the return
+ pointer update in the stub. */
+ value += 4;
+
+ /* If the delay insn does a return pointer adjustment,
+ then we have to make sure it stays valid. */
+ if (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ {
+ delay_insn &= 0xfc00ffff;
+ delay_insn |= ((31 << 21) | (31 << 16));
+ bfd_put_32 (input_bfd, delay_insn, hit_data + 4);
+ }
+ /* Use a BLE to reach the stub. */
+ insn = BLE_SR4_R0;
+ }
+ else
+ {
+ /* Wonderful, we have to swap the call insn and its
+ delay slot. */
+ bfd_put_32 (input_bfd, delay_insn, hit_data);
+ /* Use a BLE,n to reach the stub. */
+ insn = (BLE_SR4_R0 | 0x2);
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ insn = hppa_elf_relocate_insn (input_bfd,
+ input_section,
+ insn, offset + 4,
+ value, addend,
+ r_format, r_field,
+ r_pcrel);
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ return bfd_reloc_dangerous;
+ }
+ }
+ else
+ {
+ /* PLABEL stuff is easy. */
+
+ value = (stub_hash->offset
+ + stub_section->output_offset
+ + stub_section->output_section->vma);
+ /* We don't need the RP adjustment for PLABELs. */
+ value += 4;
+ if (r_type == R_PARISC_PLABEL32)
+ r_format = 32;
+ else if (r_type == R_PARISC_PLABEL21L)
+ r_format = 21;
+ else if (r_type == R_PARISC_PLABEL14R)
+ r_format = 14;
+
+ r_pcrel = 0;
+ addend = 0;
+ }
}
- else if (rtn_reg == 31)
- {
- /* The return register is r31, so this is a millicode
- call. Do not perform any instruction reordering. */
- insn = BLE_XXX_0_0;
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr, sym_value,
- r_addend, r_format,
- r_field, r_pcrel);
- bfd_put_32 (abfd, insn, hit_data);
- return bfd_reloc_ok;
- }
else
- {
- /* Check to see if the delay slot instruction has a
- relocation. If so, we need to change the address
- field of it because the instruction it relocates
- is going to be moved. Oh what a mess. */
- arelent * next_reloc_entry = reloc_entry+1;
-
- if (next_reloc_entry->address == reloc_entry->address + 4)
- next_reloc_entry->address -= 4;
-
- insn = old_delay_slot_insn;
- bfd_put_32 (abfd, insn, hit_data);
- insn = BLE_N_XXX_0_0;
- bfd_put_32 (abfd, insn, hit_data + 4);
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr + 4,
- sym_value, r_addend,
- r_format, r_field, r_pcrel);
- bfd_put_32 (abfd, insn, hit_data + 4);
- return bfd_reloc_ok;
- }
- }
- /* Same comments as above regarding incorrect test. */
- else if (rtn_reg == 31)
- {
- /* The return register is r31, so this is a millicode call.
- Perform no instruction reordering in this case. */
- insn = BLE_XXX_0_0;
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr, sym_value,
- r_addend, r_format,
- r_field, r_pcrel);
- bfd_put_32 (abfd, insn, hit_data);
- return bfd_reloc_ok;
- }
- else
- {
- /* Check to see if the delay slot instruction has a
- relocation. If so, we need to change its address
- field because the instruction it relocates is going
- to be moved. */
- arelent * next_reloc_entry = reloc_entry+1;
-
- if (next_reloc_entry->address == reloc_entry->address + 4)
- next_reloc_entry->address -= 4;
-
- insn = old_delay_slot_insn;
- bfd_put_32 (abfd, insn, hit_data);
- insn = BLE_N_XXX_0_0;
- bfd_put_32 (abfd, insn, hit_data + 4);
- r_type = R_HPPA_ABS_CALL_17;
- r_pcrel = 0;
- insn = hppa_elf_relocate_insn (abfd, input_section, insn,
- addr + 4, sym_value,
- r_addend, r_format,
- r_field, r_pcrel);
- bfd_put_32 (abfd, insn, hit_data + 4);
- return bfd_reloc_ok;
- }
- }
+ return bfd_reloc_notsupported;
+ }
+ goto do_basic_type_1;
+ }
+
+do_basic_type_1:
+ insn = hppa_elf_relocate_insn (input_bfd, input_section, insn,
+ offset, value, addend, r_format,
+ r_field, r_pcrel);
break;
-
+
/* Something we don't know how to handle. */
default:
- *error_message = (char *) "Unrecognized reloc";
return bfd_reloc_notsupported;
}
/* Update the instruction word. */
- bfd_put_32 (abfd, insn, hit_data);
+ bfd_put_32 (input_bfd, insn, hit_data);
return (bfd_reloc_ok);
}
/* Return the address of the howto table entry to perform the CODE
relocation for an ARCH machine. */
-static CONST reloc_howto_type *
-elf_hppa_reloc_type_lookup (arch, code)
- bfd_arch_info_type *arch;
+static reloc_howto_type *
+elf_hppa_reloc_type_lookup (abfd, code)
+ bfd *abfd;
bfd_reloc_code_real_type code;
{
- if ((int) code < (int) R_HPPA_UNIMPLEMENTED)
+ if ((int) code < (int) R_PARISC_UNIMPLEMENTED)
{
BFD_ASSERT ((int) elf_hppa_howto_table[(int) code].type == (int) code);
return &elf_hppa_howto_table[(int) code];
return NULL;
}
+/* Return true if SYM represents a local label symbol. */
-/* Update the symbol extention chain to include the symbol pointed to
- by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */
+static boolean
+hppa_elf_is_local_label_name (abfd, name)
+ bfd *abfd;
+ const char *name;
+{
+ return (name[0] == 'L' && name[1] == '$');
+}
+
+/* Do any backend specific processing when beginning to write an object
+ file. For PA ELF we need to determine the size of the symbol extension
+ section *before* any other output processing happens. */
-void
-elf_hppa_tc_symbol (abfd, symbolP, sym_idx, symext_root, symext_last)
+static void
+elf32_hppa_backend_begin_write_processing (abfd, info)
bfd *abfd;
- elf_symbol_type *symbolP;
- int sym_idx;
- symext_chainS **symext_root;
- symext_chainS **symext_last;
+ struct bfd_link_info *info;
{
- symext_chainS *symextP;
- unsigned int arg_reloc;
+ unsigned int i;
+ asection *symextn_sec;
- /* Only functions can have argument relocations. */
- if (!(symbolP->symbol.flags & BSF_FUNCTION))
+ /* Size up the symbol extension section. */
+ if ((abfd->outsymbols == NULL
+ && info == NULL)
+ || symext_chain_size != 0)
return;
- arg_reloc = symbolP->tc_data.hppa_arg_reloc;
+ if (info == NULL)
+ {
+ /* We were not called from the BFD ELF linker code, so we need
+ to examine the output BFD's outsymbols.
+
+ Note we can not build the symbol extensions now as the symbol
+ map hasn't been set up. */
+ for (i = 0; i < abfd->symcount; i++)
+ {
+ elf_symbol_type *symbol = (elf_symbol_type *)abfd->outsymbols[i];
+
+ /* Only functions ever need an entry in the symbol extension
+ section. */
+ if (!(symbol->symbol.flags & BSF_FUNCTION))
+ continue;
+
+ /* And only if they specify the locations of their arguments. */
+ if (symbol->tc_data.hppa_arg_reloc == 0)
+ continue;
+
+ /* Yup. This function symbol needs an entry. */
+ symext_chain_size += 2 * ELF32_PARISC_SX_SIZE;
+ }
+ }
+ else if (info->relocateable == true)
+ {
+ struct elf32_hppa_args_hash_table *table;
+ table = elf32_hppa_hash_table (info)->args_hash_table;
+
+ /* Determine the size of the symbol extension section. */
+ elf32_hppa_args_hash_traverse (table,
+ elf32_hppa_size_symext,
+ &symext_chain_size);
+ }
+
+ /* Now create the section and set its size. We'll fill in the
+ contents later. */
+ symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == NULL)
+ symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME);
+
+ bfd_set_section_flags (abfd, symextn_sec,
+ SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
+ symextn_sec->output_section = symextn_sec;
+ symextn_sec->output_offset = 0;
+ bfd_set_section_alignment (abfd, symextn_sec, 2);
+ bfd_set_section_size (abfd, symextn_sec, symext_chain_size);
+}
+
+/* Called for each entry in the args location hash table. For each
+ entry we bump the size pointer by 2 records (16 bytes). */
+
+static boolean
+elf32_hppa_size_symext (gen_entry, in_args)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_args;
+{
+ bfd_size_type *sizep = (bfd_size_type *)in_args;
+
+ *sizep += 2 * ELF32_PARISC_SX_SIZE;
+ return true;
+}
+
+/* Backend routine called by the linker for each output symbol.
+
+ For PA ELF we use this opportunity to add an appropriate entry
+ to the symbol extension chain for function symbols. */
+
+static boolean
+elf32_hppa_link_output_symbol_hook (abfd, info, name, sym, section)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ const char *name;
+ Elf_Internal_Sym *sym;
+ asection *section;
+{
+ char *new_name;
+ unsigned int len, index;
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ struct elf32_hppa_args_hash_entry *args_hash;
+
+ /* If the args hash table is NULL, then we've encountered an error
+ of some sorts (for example, an undefined symbol). In that case
+ we've got nothing else to do.
+
+ NOTE: elf_link_output_symbol will abort if we return false here! */
+ if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
+ return true;
+
+ index = elf32_hppa_hash_table (info)->output_symbol_count++;
+
+ /* We need to look up this symbol in the args hash table to see if
+ it has argument relocation bits. */
+ if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
+ return true;
+
+ /* We know it's a function symbol of some kind. */
+ len = strlen (name) + 1;
+ if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
+ len += 9;
+
+ new_name = bfd_malloc (len);
+ if (new_name == NULL)
+ return false;
+
+ strcpy (new_name, name);
+ if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
+ sprintf (new_name + len - 10, "_%08x", (int)section);
+
+ /* Now that we have the unique name, we can look it up in the
+ args hash table. */
+ args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table, new_name,
+ false, false);
+ free (new_name);
+ if (args_hash == NULL)
+ return true;
+
+ /* We know this symbol has arg reloc bits. */
+ add_entry_to_symext_chain (abfd, args_hash->arg_bits,
+ index, &symext_rootP, &symext_lastP);
+ return true;
+}
+
+/* Perform any processing needed late in the object file writing process.
+ For PA ELF we build and set the contents of the symbol extension
+ section. */
+
+static void
+elf32_hppa_backend_final_write_processing (abfd, linker)
+ bfd *abfd;
+ boolean linker;
+{
+ asection *symextn_sec;
+ unsigned int i;
- /* If there are no argument relocation bits, then no relocation is
- necessary. Do not add this to the symextn section. */
- if (arg_reloc == 0)
+ /* Now build the symbol extension section. */
+ if (symext_chain_size == 0)
return;
+ if (! linker)
+ {
+ /* We were not called from the backend linker, so we still need
+ to build the symbol extension chain.
+
+ Look at each symbol, adding the appropriate information to the
+ symbol extension section list as necessary. */
+ for (i = 0; i < abfd->symcount; i++)
+ {
+ elf_symbol_type *symbol = (elf_symbol_type *) abfd->outsymbols[i];
+
+ /* Only functions ever need an entry in the symbol extension
+ section. */
+ if (!(symbol->symbol.flags & BSF_FUNCTION))
+ continue;
+
+ /* And only if they specify the locations of their arguments. */
+ if (symbol->tc_data.hppa_arg_reloc == 0)
+ continue;
+
+ /* Add this symbol's information to the chain. */
+ add_entry_to_symext_chain (abfd, symbol->tc_data.hppa_arg_reloc,
+ symbol->symbol.udata.i, &symext_rootP,
+ &symext_lastP);
+ }
+ }
+
+ /* Now fill in the contents of the symbol extension section. */
+ elf_hppa_tc_make_sections (abfd, symext_rootP);
+
+ /* And attach that as the section's contents. */
+ symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == (asection *) 0)
+ abort();
+
+ symextn_sec->contents = (void *)symextn_contents;
+
+ bfd_set_section_contents (abfd, symextn_sec, symextn_sec->contents,
+ symextn_sec->output_offset, symextn_sec->_raw_size);
+}
+
+/* Update the symbol extention chain to include the symbol pointed to
+ by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */
+
+static void
+add_entry_to_symext_chain (abfd, arg_reloc, sym_idx, symext_root, symext_last)
+ bfd *abfd;
+ unsigned int arg_reloc;
+ unsigned int sym_idx;
+ symext_chainS **symext_root;
+ symext_chainS **symext_last;
+{
+ symext_chainS *symextP;
+
/* Allocate memory and initialize this entry. */
symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2);
if (!symextP)
- {
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
- }
+ abort(); /* FIXME */
- symextP[0].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, sym_idx);
+ symextP[0].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_SYMNDX, sym_idx);
symextP[0].next = &symextP[1];
- symextP[1].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_ARG_RELOC, arg_reloc);
+ symextP[1].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_ARG_RELOC, arg_reloc);
symextP[1].next = NULL;
/* Now update the chain itself so it can be walked later to build
}
}
-/* Build the symbol extension section. Used internally and by GAS. */
+/* Build the symbol extension section. */
-void
+static void
elf_hppa_tc_make_sections (abfd, symext_root)
bfd *abfd;
symext_chainS *symext_root;
{
symext_chainS *symextP;
- int size, n, i;
+ unsigned int i;
asection *symextn_sec;
- /* FIXME: Huh? I don't see what this is supposed to do for us. */
- hppa_elf_stub_finish (abfd);
-
- /* If there are no entries in the symbol extension chain, then
- there is no symbol extension section. */
- if (symext_root == NULL)
- return;
-
- /* Count the number of entries on the chain. */
- for (n = 0, symextP = symext_root; symextP; symextP = symextP->next, ++n)
- ;
-
- /* Create the symbol extension section and set some appropriate
- attributes. */
- size = sizeof (symext_entryS) * n;
symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
- if (symextn_sec == (asection *) 0)
- {
- symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME);
- bfd_set_section_flags (abfd,
- symextn_sec,
- SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
- symextn_sec->output_section = symextn_sec;
- symextn_sec->output_offset = 0;
- bfd_set_section_alignment (abfd, symextn_sec, 2);
- }
- bfd_set_section_size (abfd, symextn_sec, symextn_contents_real_size);
- symextn_contents_real_size = size;
/* Grab some memory for the contents of the symbol extension section
itself. */
- symextn_contents = (symext_entryS *) bfd_alloc (abfd, size);
+ symextn_contents = (bfd_byte *) bfd_zalloc (abfd,
+ symextn_sec->_raw_size);
if (!symextn_contents)
- {
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
- }
+ abort(); /* FIXME */
- /* Fill in the contents of the symbol extension section. */
+ /* Fill in the contents of the symbol extension chain. */
for (i = 0, symextP = symext_root; symextP; symextP = symextP->next, ++i)
- symextn_contents[i] = symextP->entry;
+ ELF32_PARISC_SX_PUT (abfd, (bfd_vma) symextP->entry,
+ symextn_contents + i * ELF32_PARISC_SX_SIZE);
return;
}
-/* Support for HP PA-RISC stub generation.
+/* Do some PA ELF specific work after reading in the symbol table.
+ In particular attach the argument relocation from the
+ symbol extension section to the appropriate symbols. */
- Written by
-
- Center for Software Science
- Department of Computer Science
- University of Utah
+static boolean
+elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt)
+ bfd *abfd;
+ elf_symbol_type *esyms;
+ unsigned int symcnt;
+{
+ Elf32_Internal_Shdr *symextn_hdr =
+ bfd_elf_find_section (abfd, SYMEXTN_SECTION_NAME);
+ unsigned int i, current_sym_idx = 0;
- */
+ /* If no symbol extension existed, then all symbol extension information
+ is assumed to be zero. */
+ if (symextn_hdr == NULL)
+ {
+ for (i = 0; i < symcnt; i++)
+ esyms[i].tc_data.hppa_arg_reloc = 0;
+ return (true);
+ }
-/*
- HP-PA calling conventions state:
+ /* FIXME: Why not use bfd_get_section_contents here? Also should give
+ memory back when we're done. */
+ /* Allocate a buffer of the appropriate size for the symextn section. */
+ symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size);
+ if (!symextn_hdr->contents)
+ return false;
- 1. an argument relocation stub is required whenever the callee and
- caller argument relocation bits do not match exactly. The exception
- to this rule is if either the caller or callee argument relocation
- bit are 00 (do not relocate).
+ /* Read in the symextn section. */
+ if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1)
+ return false;
+ if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->sh_size, abfd)
+ != symextn_hdr->sh_size)
+ return false;
+
+ /* Parse entries in the symbol extension section, updating the symtab
+ entries as we go */
+ for (i = 0; i < symextn_hdr->sh_size / ELF32_PARISC_SX_SIZE; i++)
+ {
+ symext_entryS se =
+ ELF32_PARISC_SX_GET (abfd,
+ ((unsigned char *)symextn_hdr->contents
+ + i * ELF32_PARISC_SX_SIZE));
+ unsigned int se_value = ELF32_PARISC_SX_VAL (se);
+ unsigned int se_type = ELF32_PARISC_SX_TYPE (se);
- 2. The linker can optionally add a symbol record for the stub so that
- the stub can be reused. The symbol record will be the same as the
- original export symbol record, except that the relocation bits will
- reflect the input of the stub, the type would be STUB and the symbol
- value will be the location of the relocation stub.
+ switch (se_type)
+ {
+ case PARISC_SXT_NULL:
+ break;
- Other notes:
+ case PARISC_SXT_SYMNDX:
+ if (se_value >= symcnt)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return (false);
+ }
+ current_sym_idx = se_value - 1;
+ break;
- Stubs can be inserted *before* the section of the caller. The stubs
- can be treated as calls to code that manipulates the arguments.
+ case PARISC_SXT_ARG_RELOC:
+ esyms[current_sym_idx].tc_data.hppa_arg_reloc = se_value;
+ break;
- */
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ return (false);
+ }
+ }
+ return (true);
+}
-typedef enum
- {
- HPPA_STUB_ILLEGAL,
- HPPA_STUB_ARG_RELOC,
- HPPA_STUB_LONG_BRANCH
- } hppa_stub_type;
+/* Read and attach the symbol extension information for the symbols
+ in INPUT_BFD to the argument location hash table. Handle locals
+ if DO_LOCALS is true; likewise for globals when DO_GLOBALS is true. */
-symext_entryS
-elf32_hppa_get_sym_extn (abfd, sym, type)
- bfd *abfd;
- asymbol *sym;
- int type;
+static boolean
+elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table, local_syms)
+ bfd *input_bfd;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ Elf_Internal_Sym *local_syms;
{
- /* This function finds the symbol extension record of the */
- /* specified type for the specified symbol. It returns the */
- /* value of the symbol extension record. */
- symext_entryS retval;
-
- switch (type)
+ asection *symextn_sec;
+ bfd_byte *contents;
+ unsigned int i, n_entries, current_index = 0;
+
+ /* Get the symbol extension section for this BFD. If no section exists
+ then there's nothing to do. Likewise if the section exists, but
+ has no contents. */
+ symextn_sec = bfd_get_section_by_name (input_bfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == NULL)
+ return true;
+
+ /* Done separately so we can turn off SEC_HAS_CONTENTS (see below). */
+ if (symextn_sec->_raw_size == 0)
{
- case HPPA_SXT_NULL:
- retval = (symext_entryS) 0;
- break;
- case HPPA_SXT_SYMNDX:
- retval = (symext_entryS) 0; /* XXX: need to fix this */
- break;
- case HPPA_SXT_ARG_RELOC:
- {
- elf_symbol_type *esymP = (elf_symbol_type *) sym;
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
+ return true;
+ }
- retval = (symext_entryS) esymP->tc_data.hppa_arg_reloc;
- break;
- }
- /* This should never happen. */
- default:
- abort();
+ contents = (bfd_byte *) bfd_malloc ((size_t) symextn_sec->_raw_size);
+ if (contents == NULL)
+ return false;
+
+ /* How gross. We turn off SEC_HAS_CONTENTS for the input symbol extension
+ sections to keep the generic ELF/BFD code from trying to do anything
+ with them. We have to undo that hack temporarily so that we can read
+ in the contents with the generic code. */
+ symextn_sec->flags |= SEC_HAS_CONTENTS;
+ if (bfd_get_section_contents (input_bfd, symextn_sec, contents,
+ 0, symextn_sec->_raw_size) == false)
+ {
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
+ free (contents);
+ return false;
}
- return retval;
-}
-typedef struct elf32_hppa_stub_name_list_struct
-{
- /* name of this stub */
- asymbol *sym;
- /* stub description for this stub */
- struct elf32_hppa_stub_description_struct *stub_desc;
- /* pointer into stub contents */
- int *stub_secp;
- /* size of this stub */
- unsigned size;
- /* next stub name entry */
- struct elf32_hppa_stub_name_list_struct *next;
-} elf32_hppa_stub_name_list;
-
-typedef struct elf32_hppa_stub_description_struct
- {
- struct elf32_hppa_stub_description_struct *next;
- bfd *this_bfd; /* bfd to which this stub applies */
- asection *stub_sec; /* stub section for this bfd */
- unsigned relocs_allocated_cnt; /* count of relocations for this stub section */
- unsigned real_size;
- unsigned allocated_size;
- int *stub_secp; /* pointer to the next available location in the buffer */
- char *stub_contents; /* contents of the stubs for this bfd */
- elf32_hppa_stub_name_list *stub_listP;
- struct bfd_link_info *link_info;
- }
-elf32_hppa_stub_description;
-
-static elf32_hppa_stub_description *elf_hppa_stub_rootP;
-
-/* Locate the stub section information for the given bfd. */
-static elf32_hppa_stub_description *
-find_stubs (abfd, stub_sec)
- bfd *abfd;
- asection *stub_sec;
-{
- elf32_hppa_stub_description *stubP;
+ /* Gross. Turn off SEC_HAS_CONTENTS for the input symbol extension
+ sections (see above). */
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
- for (stubP = elf_hppa_stub_rootP; stubP; stubP = stubP->next)
+ n_entries = symextn_sec->_raw_size / ELF32_PARISC_SX_SIZE;
+ for (i = 0; i < n_entries; i++)
{
- if (stubP->this_bfd == abfd
- && stubP->stub_sec == stub_sec)
- return stubP;
- }
+ symext_entryS entry =
+ ELF32_PARISC_SX_GET (input_bfd, contents + i * ELF32_PARISC_SX_SIZE);
+ unsigned int value = ELF32_PARISC_SX_VAL (entry);
+ unsigned int type = ELF32_PARISC_SX_TYPE (entry);
+ struct elf32_hppa_args_hash_entry *args_hash;
- return (elf32_hppa_stub_description *) NULL;
-}
+ switch (type)
+ {
+ case PARISC_SXT_NULL:
+ break;
-static elf32_hppa_stub_description *
-new_stub (abfd, stub_sec, link_info)
- bfd *abfd;
- asection *stub_sec;
- struct bfd_link_info *link_info;
-{
- elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
+ case PARISC_SXT_SYMNDX:
+ if (value >= symtab_hdr->sh_size / sizeof (Elf32_External_Sym))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
+ }
+ current_index = value;
+ break;
- if (stub)
- return stub;
+ case PARISC_SXT_ARG_RELOC:
+ if (current_index < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Shdr *hdr;
+ char *new_name;
+ const char *sym_name;
+ asection *sym_sec;
+ unsigned int len;
+
+ hdr = elf_elfsections (input_bfd)[local_syms[current_index].st_shndx];
+ sym_sec = hdr->bfd_section;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ local_syms[current_index].st_name);
+ len = strlen (sym_name) + 10;
+ new_name = bfd_malloc (len);
+ if (new_name == NULL)
+ {
+ free (contents);
+ return false;
+ }
+ strcpy (new_name, sym_name);
+ sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
+
+ /* This is a global symbol with argument location info.
+ We need to enter it into the hash table. */
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ new_name, true,
+ true);
+ free (new_name);
+ if (args_hash == NULL)
+ {
+ free (contents);
+ return false;
+ }
+ args_hash->arg_bits = value;
+ break;
+ }
+ else if (current_index >= symtab_hdr->sh_info)
+ {
+ struct elf_link_hash_entry *h;
+
+ current_index -= symtab_hdr->sh_info;
+ h = elf_sym_hashes(input_bfd)[current_index];
+ /* This is a global symbol with argument location
+ information. We need to enter it into the hash table. */
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ h->root.root.string,
+ true, true);
+ if (args_hash == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
+ }
+ args_hash->arg_bits = value;
+ break;
+ }
+ else
+ break;
- stub = (elf32_hppa_stub_description *) bfd_zalloc (abfd, sizeof (elf32_hppa_stub_description));
- if (stub)
- {
- stub->this_bfd = abfd;
- stub->stub_sec = stub_sec;
- stub->real_size = 0;
- stub->allocated_size = 0;
- stub->stub_contents = NULL;
- stub->stub_secp = NULL;
- stub->link_info = link_info;
-
- stub->next = elf_hppa_stub_rootP;
- elf_hppa_stub_rootP = stub;
- }
- else
- {
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
+ }
}
-
- return stub;
+ free (contents);
+ return true;
}
-/* Locate the stub by the given name. */
-static elf32_hppa_stub_name_list *
-find_stub_by_name (abfd, stub_sec, name)
+/* Undo the generic ELF code's subtraction of section->vma from the
+ value of each external symbol. */
+
+static boolean
+elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
bfd *abfd;
- asection *stub_sec;
- char *name;
+ struct bfd_link_info *info;
+ const Elf_Internal_Sym *sym;
+ const char **namep;
+ flagword *flagsp;
+ asection **secp;
+ bfd_vma *valp;
+{
+ *valp += (*secp)->vma;
+ return true;
+}
+
+/* Determine the name of the stub needed to perform a call assuming the
+ argument relocation bits for caller and callee are in CALLER and CALLEE
+ for a call from LOCATION to DESTINATION. Copy the name into STUB_NAME. */
+
+static void
+elf32_hppa_name_of_stub (caller, callee, location, destination, stub_name)
+ unsigned int caller, callee;
+ bfd_vma location, destination;
+ char *stub_name;
{
- elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
+ arg_reloc_type arg_reloc_types[5];
- if (stub)
+ if (elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types))
{
- elf32_hppa_stub_name_list *name_listP;
+ arg_reloc_location i;
+ /* Fill in the basic template. */
+ strcpy (stub_name, "__XX_XX_XX_XX_XX_stub_");
- for (name_listP = stub->stub_listP; name_listP; name_listP = name_listP->next)
- {
- if (!strcmp (name_listP->sym->name, name))
- return name_listP;
- }
+ /* Now fix the specifics. */
+ for (i = ARG0; i <= RET; i++)
+ switch (arg_reloc_types[i])
+ {
+ case NO:
+ stub_name[3 * i + 2] = 'N';
+ stub_name[3 * i + 3] = 'O';
+ break;
+ case GF:
+ stub_name[3 * i + 2] = 'G';
+ stub_name[3 * i + 3] = 'F';
+ break;
+ case FG:
+ stub_name[3 * i + 2] = 'F';
+ stub_name[3 * i + 3] = 'G';
+ break;
+ case GD:
+ stub_name[3 * i + 2] = 'G';
+ stub_name[3 * i + 3] = 'D';
+ break;
+ case DG:
+ stub_name[3 * i + 2] = 'D';
+ stub_name[3 * i + 3] = 'G';
+ break;
+ }
}
-
- return 0;
+ else
+ strcpy (stub_name, "_____long_branch_stub_");
}
-/* Locate the stub by the given name. */
-static elf32_hppa_stub_name_list *
-add_stub_by_name(abfd, stub_sec, sym, link_info)
- bfd *abfd;
- asection *stub_sec;
- asymbol *sym;
- struct bfd_link_info *link_info;
-{
- elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
- elf32_hppa_stub_name_list *stub_entry;
-
- if (!stub)
- stub = new_stub(abfd, stub_sec, link_info);
+/* Determine if an argument relocation stub is needed to perform a
+ call assuming the argument relocation bits for caller and callee
+ are in CALLER and CALLEE. Place the type of relocations (if any)
+ into stub_types_p. */
- if (stub)
+static boolean
+elf32_hppa_arg_reloc_needed (caller, callee, stub_types)
+ unsigned int caller, callee;
+ arg_reloc_type stub_types[5];
+{
+ /* Special case for no relocations. */
+ if (caller == 0 || callee == 0)
+ return 0;
+ else
{
- stub_entry = (elf32_hppa_stub_name_list *)
- bfd_zalloc (abfd, sizeof (elf32_hppa_stub_name_list));
-
- if (stub_entry)
+ arg_location caller_loc[5];
+ arg_location callee_loc[5];
+
+ /* Extract the location information for the argument and return
+ value on both the caller and callee sides. */
+ caller_loc[ARG0] = EXTRACT_ARBITS (caller, ARG0);
+ callee_loc[ARG0] = EXTRACT_ARBITS (callee, ARG0);
+ caller_loc[ARG1] = EXTRACT_ARBITS (caller, ARG1);
+ callee_loc[ARG1] = EXTRACT_ARBITS (callee, ARG1);
+ caller_loc[ARG2] = EXTRACT_ARBITS (caller, ARG2);
+ callee_loc[ARG2] = EXTRACT_ARBITS (callee, ARG2);
+ caller_loc[ARG3] = EXTRACT_ARBITS (caller, ARG3);
+ callee_loc[ARG3] = EXTRACT_ARBITS (callee, ARG3);
+ caller_loc[RET] = EXTRACT_ARBITS (caller, RET);
+ callee_loc[RET] = EXTRACT_ARBITS (callee, RET);
+
+ /* Check some special combinations. This is necessary to
+ deal with double precision FP arguments. */
+ if (caller_loc[ARG0] == AR_FU || caller_loc[ARG1] == AR_FU)
{
- stub_entry->size = 0;
- stub_entry->sym = sym;
- stub_entry->stub_desc = stub;
- /* First byte of this stub is the pointer to
- the next available location in the stub buffer. */
- stub_entry->stub_secp = stub->stub_secp;
- if (stub->stub_listP)
- stub_entry->next = stub->stub_listP;
- else
- stub_entry->next = NULL;
- stub->stub_listP = stub_entry;
- return stub_entry;
+ caller_loc[ARG0] = AR_FPDBL1;
+ caller_loc[ARG1] = AR_NO;
}
- else
+ if (caller_loc[ARG2] == AR_FU || caller_loc[ARG3] == AR_FU)
{
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
+ caller_loc[ARG2] = AR_FPDBL2;
+ caller_loc[ARG3] = AR_NO;
+ }
+ if (callee_loc[ARG0] == AR_FU || callee_loc[ARG1] == AR_FU)
+ {
+ callee_loc[ARG0] = AR_FPDBL1;
+ callee_loc[ARG1] = AR_NO;
+ }
+ if (callee_loc[ARG2] == AR_FU || callee_loc[ARG3] == AR_FU)
+ {
+ callee_loc[ARG2] = AR_FPDBL2;
+ callee_loc[ARG3] = AR_NO;
}
- }
- return (elf32_hppa_stub_name_list *)NULL;
+ /* Now look up any relocation needed for each argument and the
+ return value. */
+ stub_types[ARG0] = arg_mismatches[caller_loc[ARG0]][callee_loc[ARG0]];
+ stub_types[ARG1] = arg_mismatches[caller_loc[ARG1]][callee_loc[ARG1]];
+ stub_types[ARG2] = arg_mismatches[caller_loc[ARG2]][callee_loc[ARG2]];
+ stub_types[ARG3] = arg_mismatches[caller_loc[ARG3]][callee_loc[ARG3]];
+ stub_types[RET] = ret_mismatches[caller_loc[RET]][callee_loc[RET]];
+
+ return (stub_types[ARG0] != NO
+ || stub_types[ARG1] != NO
+ || stub_types[ARG2] != NO
+ || stub_types[ARG3] != NO
+ || stub_types[RET] != NO);
+ }
}
-#define ARGUMENTS 0
-#define RETURN_VALUE 1
+/* Compute the size of the stub needed to call from LOCATION to DESTINATION
+ (a function named SYM_NAME), with argument relocation bits CALLER and
+ CALLEE. Return zero if no stub is needed to perform such a call. */
-#define NO_ARG_RELOC 0
-#define R_TO_FR 1
-#define R01_TO_FR 2
-#define R23_TO_FR 3
-#define FR_TO_R 4
-#define FR_TO_R01 5
-#define FR_TO_R23 6
-#define ARG_RELOC_ERR 7
-
-#define ARG0 0
-#define ARG1 1
-#define ARG2 2
-#define ARG3 3
-#define RETVAL 4
-
-#define AR_NO 0
-#define AR_GR 1
-#define AR_FR 2
-#define AR_FU 3
-/* FP register in arg0/arg1. This value can only appear in the arg0 location. */
-#define AR_DBL01 4
-/* FP register in arg2/arg3. This value can only appear in the arg2 location. */
-#define AR_DBL23 5
-
-#define AR_WARN(type,loc) \
- fprintf(stderr,"WARNING: Illegal argument relocation: %s for %s\n", \
- reloc_type_strings[type],reloc_loc_strings[loc])
-
-static CONST char *CONST reloc_type_strings[] =
+static unsigned int
+elf32_hppa_size_of_stub (callee, caller, location, destination, sym_name)
+ unsigned int callee, caller;
+ bfd_vma location, destination;
+ const char *sym_name;
{
- "NONE", "GR->FR", "GR0,GR1->FR1", "GR2,GR3->FR3", "FR->GR", "FR->GR0,GR1", "FR->GR2,GR3", "ERROR"
-};
+ arg_reloc_type arg_reloc_types[5];
+
+ /* Determine if a long branch or argument relocation stub is needed.
+ If an argument relocation stub is needed, the relocation will be
+ stored into arg_reloc_types. */
+ if (!(((int)(location - destination) > 0x3ffff)
+ || ((int)(location - destination) < (int)0xfffc0000)
+ || elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types)))
+ return 0;
-static CONST char *CONST reloc_loc_strings[] =
-{
- "ARG0", "ARG1", "ARG2", "ARG3", "RETVAL"
-};
+ /* Some kind of stub is needed. Determine how big it needs to be.
+ First check for argument relocation stubs as they also handle
+ long calls. Then check for long calls to millicode and finally
+ the normal long calls. */
+ if (arg_reloc_types[ARG0] != NO
+ || arg_reloc_types[ARG1] != NO
+ || arg_reloc_types[ARG2] != NO
+ || arg_reloc_types[ARG3] != NO
+ || arg_reloc_types[RET] != NO)
+ {
+ /* Some kind of argument relocation stub is needed. */
+ unsigned int len = 16;
+ arg_reloc_location i;
+
+ /* Each GR or FG relocation takes 2 insns, each GD or DG
+ relocation takes 3 insns. Plus 4 more insns for the
+ RP adjustment, ldil & (be | ble) and copy. */
+ for (i = ARG0; i <= RET; i++)
+ switch (arg_reloc_types[i])
+ {
+ case GF:
+ case FG:
+ len += 8;
+ break;
-static CONST char mismatches[6][6] =
-{ /* CALLEE NONE CALLEE GR CALLEE FR CALLEE FU CALLEE DBL01 CALLEE DBL23 */
- /* CALLER NONE */
- {NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC, ARG_RELOC_ERR, NO_ARG_RELOC, NO_ARG_RELOC},
- /* CALLER GR */
- {NO_ARG_RELOC, NO_ARG_RELOC, R_TO_FR, ARG_RELOC_ERR, R01_TO_FR, ARG_RELOC_ERR},
- /* CALLER FR */
- {NO_ARG_RELOC, FR_TO_R, NO_ARG_RELOC, ARG_RELOC_ERR, ARG_RELOC_ERR},
- /* CALLER FU */
- {ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR},
- /* CALLER DBL01 */
- {NO_ARG_RELOC, FR_TO_R01, NO_ARG_RELOC, ARG_RELOC_ERR, NO_ARG_RELOC, ARG_RELOC_ERR},
- /* CALLER DBL23 */
- {NO_ARG_RELOC, FR_TO_R23, NO_ARG_RELOC, ARG_RELOC_ERR, ARG_RELOC_ERR, NO_ARG_RELOC},
-};
+ case GD:
+ case DG:
+ len += 12;
+ break;
-static CONST char retval_mismatches[6][6] =
-{ /* CALLEE NONE CALLEE GR CALLEE FR CALLEE FU CALLEE DBL01 CALLEE DBL23 */
- /* CALLER NONE */
- {NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC, ARG_RELOC_ERR, NO_ARG_RELOC, NO_ARG_RELOC},
- /* CALLER GR */
- {NO_ARG_RELOC, NO_ARG_RELOC, FR_TO_R, ARG_RELOC_ERR, FR_TO_R01, ARG_RELOC_ERR},
- /* CALLER FR */
- {NO_ARG_RELOC, R_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR},
- /* CALLER FU */
- {ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR},
- /* CALLER DBL01 */
- {NO_ARG_RELOC, R01_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR, NO_ARG_RELOC, ARG_RELOC_ERR},
- /* CALLER DBL23 */
- {NO_ARG_RELOC, R23_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR, ARG_RELOC_ERR, NO_ARG_RELOC},
-};
-
-static int
-type_of_mismatch (caller_bits, callee_bits, type)
- int caller_bits;
- int callee_bits;
- int type;
-{
- switch (type)
- {
- case ARGUMENTS:
- return mismatches[caller_bits][callee_bits];
- case RETURN_VALUE:
- return retval_mismatches[caller_bits][callee_bits];
- }
-
- return 0;
-}
-
-#define EXTRACT_ARBITS(ar,which) ((ar) >> (8-(which*2))) & 3
-
-#define NEW_INSTRUCTION(entry,insn) \
-{ \
- *((entry)->stub_desc->stub_secp)++ = (insn); \
- (entry)->stub_desc->real_size += sizeof(int); \
- (entry)->size += sizeof(int); \
- bfd_set_section_size((entry)->stub_desc->this_bfd, \
- (entry)->stub_desc->stub_sec, \
- (entry)->stub_desc->real_size); \
-}
-
-#define CURRENT_STUB_OFFSET(entry) \
- ((char *)(entry)->stub_desc->stub_secp \
- - (char *)(entry)->stub_desc->stub_contents - 4)
-
-static boolean stubs_finished = false;
-
-void
-hppa_elf_stub_finish (output_bfd)
- bfd *output_bfd;
-{
- elf32_hppa_stub_description *stub_list = elf_hppa_stub_rootP;
- /* All the stubs have been built. Finish up building */
- /* stub section. Apply relocations to the section. */
-
- if (stubs_finished)
- return;
-
- for (; stub_list; stub_list = stub_list->next)
- {
- if (stub_list->real_size)
- {
- bfd *stub_bfd = stub_list->this_bfd;
- asection *stub_sec = bfd_get_section_by_name (stub_bfd, ".hppa_linker_stubs");
- bfd_size_type reloc_size;
- arelent **reloc_vector;
-
- BFD_ASSERT (stub_sec == stub_list->stub_sec);
- reloc_size = bfd_get_reloc_upper_bound (stub_bfd, stub_sec);
- reloc_vector = (arelent **) alloca (reloc_size);
-
- BFD_ASSERT (stub_sec);
-
- /* We are not relaxing the section, so just copy the size info */
- stub_sec->_cooked_size = stub_sec->_raw_size;
- stub_sec->reloc_done = true;
-
-
- if (bfd_canonicalize_reloc (stub_bfd,
- stub_sec,
- reloc_vector,
- output_bfd->outsymbols))
- {
- arelent **parent;
- for (parent = reloc_vector; *parent != (arelent *) NULL;
- parent++)
- {
- char *err = (char *) NULL;
- bfd_reloc_status_type r =
- bfd_perform_relocation (stub_bfd,
- *parent,
- stub_list->stub_contents,
- stub_sec, (bfd *) NULL, &err);
-
-
- if (r != bfd_reloc_ok)
- {
- struct bfd_link_info *link_info = stub_list->link_info;
-
- switch (r)
- {
- case bfd_reloc_undefined:
- if (! ((*link_info->callbacks->undefined_symbol)
- (link_info,
- bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
- stub_bfd, stub_sec, (*parent)->address)))
- abort ();
- break;
- case bfd_reloc_dangerous:
- if (! ((*link_info->callbacks->reloc_dangerous)
- (link_info, err, stub_bfd, stub_sec,
- (*parent)->address)))
- abort ();
- break;
- case bfd_reloc_overflow:
- {
- if (! ((*link_info->callbacks->reloc_overflow)
- (link_info,
- bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
- (*parent)->howto->name,
- (*parent)->addend,
- stub_bfd, stub_sec,
- (*parent)->address)))
- abort ();
- }
- break;
- case bfd_reloc_outofrange:
- default:
- abort ();
- break;
- }
- }
- }
- }
-
- bfd_set_section_contents (output_bfd,
- stub_sec,
- stub_list->stub_contents,
- 0,
- stub_list->real_size);
-
- free (reloc_vector);
- }
- }
- stubs_finished = true;
-}
+ default:
+ break;
+ }
-void
-hppa_elf_stub_branch_reloc (stub_desc, /* the bfd */
- output_bfd, /* the output bfd */
- target_sym, /* the target symbol */
- offset) /* the offset within the stub buffer (pre-calculated) */
- elf32_hppa_stub_description *stub_desc;
- bfd *output_bfd;
- asymbol *target_sym;
- int offset;
-{
- /* Allocate a new relocation entry. */
- arelent relent;
- int size;
+ /* Extra instructions are needed if we're relocating a return value. */
+ if (arg_reloc_types[RET] != NO)
+ len += 12;
- if (stub_desc->relocs_allocated_cnt == stub_desc->stub_sec->reloc_count)
- {
- if (stub_desc->stub_sec->relocation == NULL)
- {
- stub_desc->relocs_allocated_cnt = STUB_RELOC_INCR;
- size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
- stub_desc->stub_sec->relocation = (arelent *) bfd_zmalloc (size);
- }
- else
- {
- stub_desc->relocs_allocated_cnt += STUB_RELOC_INCR;
- size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
- stub_desc->stub_sec->relocation = (arelent *) realloc (stub_desc->stub_sec->relocation,
- size);
- }
- if (!stub_desc->stub_sec->relocation)
- {
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
- }
+ return len;
}
-
- /* Fill in the details. */
- relent.address = offset;
- relent.addend = 0;
- relent.sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd, sizeof (asymbol *));
- BFD_ASSERT (relent.sym_ptr_ptr); /* FIXME */
-
- relent.sym_ptr_ptr[0] = target_sym;
- relent.howto = bfd_reloc_type_lookup (stub_desc->this_bfd, R_HPPA_PCREL_CALL_17);
-
- /* Save it in the array of relocations for the stub section. */
-
- memcpy (&stub_desc->stub_sec->relocation[stub_desc->stub_sec->reloc_count++],
- &relent,
- sizeof (arelent));
+ else if (!strncmp ("$$", sym_name, 2)
+ && strcmp ("$$dyncall", sym_name))
+ return 12;
+ else
+ return 16;
}
-void
-hppa_elf_stub_reloc (stub_desc, /* the bfd */
- output_bfd, /* the output bfd */
- target_sym, /* the target symbol */
- offset, /* the offset within the stub buffer (pre-calculated) */
- type)
- elf32_hppa_stub_description *stub_desc;
- bfd *output_bfd;
- asymbol *target_sym;
- int offset;
- elf32_hppa_reloc_type type;
-{
- /* Allocate a new relocation entry. */
- arelent relent;
- int size;
- Elf_Internal_Shdr *rela_hdr;
-
- if (stub_desc->relocs_allocated_cnt == stub_desc->stub_sec->reloc_count)
- {
- if (stub_desc->stub_sec->relocation == NULL)
- {
- stub_desc->relocs_allocated_cnt = STUB_RELOC_INCR;
- size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
- stub_desc->stub_sec->relocation = (arelent *) bfd_zmalloc (size);
- }
- else
- {
- stub_desc->relocs_allocated_cnt += STUB_RELOC_INCR;
- size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
- stub_desc->stub_sec->relocation = (arelent *) realloc (stub_desc->stub_sec->relocation,
- size);
- }
- if (!stub_desc->stub_sec->relocation)
- {
- bfd_set_error (bfd_error_no_memory);
- abort(); /* FIXME */
- }
- }
-
- rela_hdr = &elf_section_data(stub_desc->stub_sec)->rel_hdr;
- rela_hdr->sh_size += sizeof(Elf32_External_Rela);
-
- /* Fill in the details. */
- relent.address = offset;
- relent.addend = 0;
- relent.sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd, sizeof (asymbol *));
- BFD_ASSERT (relent.sym_ptr_ptr); /* FIXME */
+/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
+ IN_ARGS contains the stub BFD and link info pointers. */
- relent.sym_ptr_ptr[0] = target_sym;
- relent.howto = bfd_reloc_type_lookup (stub_desc->this_bfd, type);
-
- /* Save it in the array of relocations for the stub section. */
-
- memcpy (&stub_desc->stub_sec->relocation[stub_desc->stub_sec->reloc_count++],
- &relent,
- sizeof (arelent));
-}
-
-asymbol *
-hppa_elf_build_arg_reloc_stub (abfd, output_bfd, link_info, reloc_entry,
- stub_types, rtn_adjust, data)
- bfd *abfd;
- bfd *output_bfd;
- struct bfd_link_info *link_info;
- arelent *reloc_entry;
- int stub_types[5];
- int rtn_adjust;
- unsigned *data;
+static boolean
+elf32_hppa_build_one_stub (gen_entry, in_args)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_args;
{
- asection *stub_sec = bfd_get_section_by_name (abfd, ".hppa_linker_stubs");
- elf32_hppa_stub_description *stub_desc = find_stubs (abfd, stub_sec);
- asymbol *stub_sym = NULL;
- asymbol *target_sym = reloc_entry->sym_ptr_ptr[0];
- asection *output_text_section = bfd_get_section_by_name (output_bfd, ".text");
- int i;
- char stub_sym_name[128];
- elf32_hppa_stub_name_list *stub_entry;
- unsigned insn = data[0];
-
- /* Perform some additional checks on whether we should really do the
- return adjustment. For example, if the instruction is nullified
- or if the delay slot contains an instruction that modifies the return
- pointer, then the branch instructions should not be rearranged
- (rtn_adjust is false). */
- if (insn & 2 || insn == 0)
- rtn_adjust = false;
- else
+ void **args = (void **)in_args;
+ bfd *stub_bfd = (bfd *)args[0];
+ struct bfd_link_info *info = (struct bfd_link_info *)args[1];
+ struct elf32_hppa_stub_hash_entry *entry;
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ bfd_byte *loc;
+ symvalue sym_value;
+ const char *sym_name;
+
+ /* Initialize pointers to the stub hash table, the particular entry we
+ are building a stub for, and where (in memory) we should place the stub
+ instructions. */
+ entry = (struct elf32_hppa_stub_hash_entry *)gen_entry;
+ stub_hash_table = elf32_hppa_hash_table(info)->stub_hash_table;
+ loc = stub_hash_table->location;
+
+ /* Make a note of the offset within the stubs for this entry. */
+ entry->offset = stub_hash_table->offset;
+
+ /* The symbol's name starts at offset 22. */
+ sym_name = entry->root.string + 22;
+
+ sym_value = (entry->target_value
+ + entry->target_section->output_offset
+ + entry->target_section->output_section->vma);
+
+ if (strncmp ("_____long_branch_stub_", entry->root.string, 22))
{
- unsigned delay_insn = data[1];
-
- if (get_opcode (delay_insn) == LDO
- && (((insn & 0x03e00000) >> 21) == ((delay_insn & 0x001f0000) >> 16)))
- rtn_adjust = false;
- }
-
- /* See if the proper stub entry has already been made. */
- if (!stub_sec)
- {
- BFD_ASSERT (stub_desc == NULL);
- stub_sec = bfd_make_section (abfd, ".hppa_linker_stubs");
- bfd_set_section_flags (abfd,
- stub_sec,
- SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD
- | SEC_RELOC | SEC_CODE | SEC_READONLY);
- stub_sec->output_section = output_text_section->output_section;
- stub_sec->output_offset = 0;
- bfd_set_section_alignment (abfd, stub_sec, 2);
- stub_desc = new_stub (abfd, stub_sec, link_info);
- }
-
- /* Make the stub if we did not find one already. */
- if (!stub_desc)
- stub_desc = new_stub (abfd, stub_sec, link_info);
-
- /* Allocate space to write the stub.
- FIXME. Why using realloc?!? */
- if (!stub_desc->stub_contents)
- {
- stub_desc->allocated_size = STUB_BUFFER_INCR;
- stub_desc->stub_contents = (char *) malloc (STUB_BUFFER_INCR);
- if (!stub_desc->stub_contents)
+ /* This must be an argument or return value relocation stub. */
+ unsigned long insn;
+ arg_reloc_location i;
+ bfd_byte *begin_loc = loc;
+
+ /* First the return pointer adjustment. Depending on exact calling
+ sequence this instruction may be skipped. */
+ bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
+ loc += 4;
+
+ /* If we are relocating a return value, then we're going to have
+ to return into the stub. So we have to save off the user's
+ return pointer into the stack at RP'. */
+ if (strncmp (entry->root.string + 14, "NO", 2))
{
- bfd_set_error (bfd_error_no_memory);
- return NULL;
+ bfd_put_32 (stub_bfd, STW_R31_M8R30, loc);
+ loc += 4;
}
- }
- else if ((stub_desc->allocated_size - stub_desc->real_size) < STUB_MAX_SIZE)
- {
- stub_desc->allocated_size = stub_desc->allocated_size + STUB_BUFFER_INCR;
- stub_desc->stub_contents = (char *) realloc (stub_desc->stub_contents,
- stub_desc->allocated_size);
- }
-
- stub_desc->stub_secp
- = (int *) (stub_desc->stub_contents + stub_desc->real_size);
- sprintf (stub_sym_name,
- "_stub_%s_%02d_%02d_%02d_%02d_%02d_%s",
- reloc_entry->sym_ptr_ptr[0]->name,
- stub_types[0], stub_types[1], stub_types[2],
- stub_types[3], stub_types[4],
- rtn_adjust ? "RA" : "");
- stub_entry = find_stub_by_name (abfd, stub_sec, stub_sym_name);
-
- if (stub_entry)
- {
- stub_sym = stub_entry->sym;
- /* Redirect the original relocation from the old symbol (a function)
- to the stub (the stub calls the function). Should we need to
- change the relocation type? */
- reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd,
- sizeof (asymbol *));
- if (!reloc_entry->sym_ptr_ptr)
+ /* Iterate over the argument relocations, emitting instructions
+ to move them around as necessary. */
+ for (i = ARG0; i <= ARG3; i++)
{
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- reloc_entry->sym_ptr_ptr[0] = stub_sym;
- if (reloc_entry->howto->type != R_HPPA_PLABEL_32
- && (get_opcode(insn) == BLE
- || get_opcode (insn) == BE
- || get_opcode (insn) == BL))
- reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
- }
- else
- {
- /* Create a new symbol to point to this stub. */
- stub_sym = bfd_make_empty_symbol (abfd);
- if (!stub_sym)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- stub_sym->name = bfd_zalloc (abfd, strlen (stub_sym_name) + 1);
- if (!stub_sym->name)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- strcpy ((char *) stub_sym->name, stub_sym_name);
- stub_sym->value
- = (char *) stub_desc->stub_secp - (char *) stub_desc->stub_contents;
- stub_sym->section = stub_sec;
- stub_sym->flags = BSF_LOCAL | BSF_FUNCTION;
- stub_entry = add_stub_by_name (abfd, stub_sec, stub_sym, link_info);
-
- /* Redirect the original relocation from the old symbol (a function)
- to the stub (the stub calls the function). Change the type of
- relocation to be the internal use only stub R_HPPA_STUB_CALL_17. */
- reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd,
- sizeof (asymbol *));
- if (!reloc_entry->sym_ptr_ptr)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- reloc_entry->sym_ptr_ptr[0] = stub_sym;
- if (reloc_entry->howto->type != R_HPPA_PLABEL_32
- && (get_opcode (insn) == BLE
- || get_opcode (insn) == BE
- || get_opcode (insn) == BL))
- reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
-
- /* Generate common code for all stubs. */
-
- NEW_INSTRUCTION (stub_entry, LDSID_31_1);
- NEW_INSTRUCTION (stub_entry, MTSP_1_SR0);
- NEW_INSTRUCTION (stub_entry, ADDI_8_SP);
-
- /* Generate code to move the arguments around. */
- for (i = ARG0; i < ARG3; i++)
- {
- if (stub_types[i] != NO_ARG_RELOC)
+ if (!strncmp (entry->root.string + 3 * i + 2, "GF", 2))
{
- switch (stub_types[i])
- {
- case R_TO_FR:
- switch (i)
- {
- case ARG0:
- NEW_INSTRUCTION (stub_entry, STWS_ARG0_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG0);
- break;
- case ARG1:
- NEW_INSTRUCTION (stub_entry, STWS_ARG1_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG1);
- break;
- case ARG2:
- NEW_INSTRUCTION (stub_entry, STWS_ARG2_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG2);
- break;
- case ARG3:
- NEW_INSTRUCTION (stub_entry, STWS_ARG3_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG3);
- break;
- }
- continue;
-
- case R01_TO_FR:
- switch (i)
- {
- case ARG0:
- NEW_INSTRUCTION (stub_entry, STWS_ARG0_M4SP);
- NEW_INSTRUCTION (stub_entry, STWS_ARG1_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDDS_M8SP_FARG1);
- break;
- default:
- AR_WARN (stub_types[i],i);
- break;
- }
- continue;
-
- case R23_TO_FR:
- switch (i)
- {
- case ARG2:
- NEW_INSTRUCTION (stub_entry, STWS_ARG2_M4SP);
- NEW_INSTRUCTION (stub_entry, STWS_ARG3_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDDS_M8SP_FARG3);
- break;
- default:
- AR_WARN (stub_types[i],i);
- break;
- }
- continue;
-
- case FR_TO_R:
- switch (i)
- {
- case ARG0:
- NEW_INSTRUCTION (stub_entry, FSTWS_FARG0_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG0);
- break;
- case ARG1:
- NEW_INSTRUCTION (stub_entry, FSTWS_FARG1_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG1);
- break;
- case ARG2:
- NEW_INSTRUCTION (stub_entry, FSTWS_FARG2_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG2);
- break;
- case ARG3:
- NEW_INSTRUCTION (stub_entry, FSTWS_FARG3_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG3);
- break;
- }
- continue;
-
- case FR_TO_R01:
- switch (i)
- {
- case ARG0:
- NEW_INSTRUCTION (stub_entry, FSTDS_FARG1_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG0);
- NEW_INSTRUCTION (stub_entry, LDWS_M8SP_ARG1);
- break;
- default:
- AR_WARN (stub_types[i],i);
- break;
- }
- continue;
-
- case FR_TO_R23:
- switch (i)
- {
- case ARG2:
- NEW_INSTRUCTION (stub_entry, FSTDS_FARG3_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG2);
- NEW_INSTRUCTION (stub_entry, LDWS_M8SP_ARG3);
- break;
- default:
- AR_WARN (stub_types[i],i);
- break;
- }
- continue;
-
- }
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((26 - i) << 16), loc);
+ bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | (4 + i), loc + 4);
+ loc += 8;
}
- }
-
- NEW_INSTRUCTION (stub_entry, ADDI_M8_SP_SP);
-
- /* Adjust the return address if necessary. */
- if (rtn_adjust)
- {
- NEW_INSTRUCTION (stub_entry, ADDI_M4_31_RP);
- }
- else
- NEW_INSTRUCTION (stub_entry, COPY_31_2);
-
- /* Save the return address. */
- NEW_INSTRUCTION (stub_entry, STW_RP_M8SP);
-
- /* Long branch to the target function. */
- NEW_INSTRUCTION (stub_entry, LDIL_XXX_31);
- hppa_elf_stub_reloc (stub_entry->stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_L21);
- NEW_INSTRUCTION (stub_entry, BLE_XXX_0_31);
- hppa_elf_stub_reloc (stub_entry->stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_ABS_CALL_R17);
- NEW_INSTRUCTION (stub_entry, COPY_31_2);
-
-
- /* Restore the return address. */
- NEW_INSTRUCTION (stub_entry, LDW_M8SP_RP);
-
- /* Generate the code to move the return value around. */
- i = RETVAL;
- if (stub_types[i] != NO_ARG_RELOC)
- {
- switch (stub_types[i])
+ else if (!strncmp (entry->root.string + 3 * i + 2, "FG", 2))
{
- case R_TO_FR:
- NEW_INSTRUCTION (stub_entry, STWS_RET0_M8SP);
- NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FRET0);
- break;
-
- case FR_TO_R:
- NEW_INSTRUCTION (stub_entry, FSTWS_FRET0_M8SP);
- NEW_INSTRUCTION (stub_entry, LDWS_M4SP_RET0);
- break;
+ bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | (4 + i), loc);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((26 - i) << 16), loc + 4);
+ loc += 8;
}
- }
- NEW_INSTRUCTION (stub_entry, BV_N_0_RP);
- }
-
- return stub_sym;
-}
-
-int
-hppa_elf_arg_reloc_needed_p (abfd, reloc_entry, stub_types, caller_ar)
- bfd *abfd;
- arelent *reloc_entry;
- int stub_types[5];
- symext_entryS caller_ar;
-{
- /* If the symbol is still undefined, there is */
- /* no way to know if a stub is required. */
-
- if (reloc_entry->sym_ptr_ptr[0] && reloc_entry->sym_ptr_ptr[0]->section != &bfd_und_section)
- {
- symext_entryS callee_ar = elf32_hppa_get_sym_extn (abfd,
- reloc_entry->sym_ptr_ptr[0],
- HPPA_SXT_ARG_RELOC);
-
- /* Now, determine if a stub is */
- /* required. A stub is required if they the callee and caller */
- /* argument relocation bits are both nonzero and not equal. */
-
- if (caller_ar && callee_ar)
- {
- /* Both are non-zero, we need to do further checking. */
- /* First, check if there is a return value relocation to be done */
- int caller_loc[5];
- int callee_loc[5];
-
- callee_loc[RETVAL] = EXTRACT_ARBITS (callee_ar, RETVAL);
- caller_loc[RETVAL] = EXTRACT_ARBITS (caller_ar, RETVAL);
- callee_loc[ARG0] = EXTRACT_ARBITS (callee_ar, ARG0);
- caller_loc[ARG0] = EXTRACT_ARBITS (caller_ar, ARG0);
- callee_loc[ARG1] = EXTRACT_ARBITS (callee_ar, ARG1);
- caller_loc[ARG1] = EXTRACT_ARBITS (caller_ar, ARG1);
- callee_loc[ARG2] = EXTRACT_ARBITS (callee_ar, ARG2);
- caller_loc[ARG2] = EXTRACT_ARBITS (caller_ar, ARG2);
- callee_loc[ARG3] = EXTRACT_ARBITS (callee_ar, ARG3);
- caller_loc[ARG3] = EXTRACT_ARBITS (caller_ar, ARG3);
-
- /* Check some special combinations. For */
- /* example, if FU appears in ARG1 or ARG3, we */
- /* can move it to ARG0 or ARG2, respectively. */
-
- if (caller_loc[ARG0] == AR_FU || caller_loc[ARG1] == AR_FU)
- {
- caller_loc[ARG0] = AR_DBL01;
- caller_loc[ARG1] = AR_NO;
- }
- if (caller_loc[ARG2] == AR_FU || caller_loc[ARG3] == AR_FU)
+ else if (!strncmp (entry->root.string + 3 * i + 2, "GD", 2))
{
- caller_loc[ARG2] = AR_DBL23;
- caller_loc[ARG3] = AR_NO;
+ bfd_put_32 (stub_bfd, STW_ARG_M12R30 | ((26 - i) << 16), loc);
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((25 - i) << 16), loc + 4);
+ bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | (5 + i), loc + 8);
+ loc += 12;
}
- if (callee_loc[ARG0] == AR_FU || callee_loc[ARG1] == AR_FU)
+ else if (!strncmp (entry->root.string + 3 * i + 2, "DG", 2))
{
- callee_loc[ARG0] = AR_DBL01;
- callee_loc[ARG1] = AR_NO;
+ bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | (5 + i), loc);
+ bfd_put_32 (stub_bfd, LDW_M12R30_ARG | ((26 - i) << 16), loc + 4);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((25 - i) << 16), loc + 8);
+ loc += 12;
}
- if (callee_loc[ARG2] == AR_FU || callee_loc[ARG3] == AR_FU)
- {
- callee_loc[ARG2] = AR_DBL23;
- callee_loc[ARG3] = AR_NO;
- }
-
- stub_types[ARG0] = type_of_mismatch (caller_loc[ARG0], callee_loc[ARG0], ARGUMENTS);
- stub_types[ARG1] = type_of_mismatch (caller_loc[ARG1], callee_loc[ARG1], ARGUMENTS);
- stub_types[ARG2] = type_of_mismatch (caller_loc[ARG2], callee_loc[ARG2], ARGUMENTS);
- stub_types[ARG3] = type_of_mismatch (caller_loc[ARG3], callee_loc[ARG3], ARGUMENTS);
- stub_types[RETVAL] = type_of_mismatch (caller_loc[RETVAL], callee_loc[RETVAL], RETURN_VALUE);
-
- /* Steps involved in building stubs: */
- /* 1. Determine what argument registers need to relocated. This */
- /* step is already done here. */
- /* 2. Build the appropriate stub in the .hppa_linker_stubs section. */
- /* This section should never appear in an object file. It is */
- /* only used internally. The output_section of the */
- /* .hppa_linker_stubs section is the .text section of the */
- /* executable. */
- /* 3. Build a symbol that is used (internally only) as the entry */
- /* point of the stub. */
- /* 4. Change the instruction of the original branch into a branch to */
- /* the stub routine. */
- /* 5. Build a relocation entry for the instruction of the original */
- /* branch to be R_HPPA_PCREL_CALL to the stub routine. */
-
-
- if (stub_types[0]
- || stub_types[1]
- || stub_types[2]
- || stub_types[3]
- || stub_types[4])
- {
-#ifdef DETECT_STUBS
- int i;
-
- fprintf (stderr, "Stub needed for %s @ %s+0x%x: callee/caller ar=0x%x/0x%x ",
- reloc_entry->sym_ptr_ptr[0]->name,
- abfd->filename, reloc_entry->address,
- callee_ar, caller_ar);
- for (i = ARG0; i < RETVAL; i++)
- {
- if (stub_types[i] != NO_ARG_RELOC)
- {
- fprintf (stderr, "%s%d: %s ",
- i == RETVAL ? "ret" : "arg",
- i == RETVAL ? 0 : i,
- reloc_type_strings[stub_types[i]]);
- }
- }
- fprintf (stderr, "\n");
-#endif
- return 1;
- }
-
}
- }
- return 0;
-}
-
-asymbol *
-hppa_elf_build_long_branch_stub (abfd, output_bfd, link_info, reloc_entry,
- symbol, data)
- bfd *abfd;
- bfd *output_bfd;
- struct bfd_link_info *link_info;
- arelent *reloc_entry;
- asymbol *symbol;
- unsigned *data;
-{
- asection *stub_sec = bfd_get_section_by_name (abfd, ".hppa_linker_stubs");
- elf32_hppa_stub_description *stub_desc = find_stubs (abfd, stub_sec);
- asymbol *stub_sym = NULL;
- asymbol *target_sym = reloc_entry->sym_ptr_ptr[0];
- asection *output_text_section = bfd_get_section_by_name (output_bfd, ".text");
- char stub_sym_name[128];
- int milli = false;
- int dyncall = false;
- elf32_hppa_stub_name_list *stub_entry;
- int rtn_adjust = true;
- int rtn_reg;
- unsigned insn;
-
- /* Create the stub section if it does not already exist. */
- if (!stub_sec)
- {
- BFD_ASSERT (stub_desc == NULL);
- stub_sec = bfd_make_section (abfd, ".hppa_linker_stubs");
- bfd_set_section_flags (abfd,
- stub_sec,
- SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD
- | SEC_RELOC | SEC_CODE | SEC_READONLY);
- stub_sec->output_section = output_text_section->output_section;
- stub_sec->output_offset = 0;
-
- /* Set up the ELF section header for this new section. This
- is basically the same processing as elf_make_sections().
- elf_make_sections is static and therefore not accessable
- here. */
- {
- Elf_Internal_Shdr *this_hdr;
- this_hdr = &elf_section_data (stub_sec)->this_hdr;
-
- /* Set the sizes of this section. The contents have already
- been set up ?!? */
- this_hdr->sh_addr = stub_sec->vma;
- this_hdr->sh_size = stub_sec->_raw_size;
-
- /* Set appropriate flags for sections with relocations. */
- if (stub_sec->flags & SEC_RELOC)
- {
- Elf_Internal_Shdr *rela_hdr;
- int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
-
- rela_hdr = &elf_section_data (stub_sec)->rel_hdr;
-
- if (use_rela_p)
- {
- rela_hdr->sh_type = SHT_RELA;
- rela_hdr->sh_entsize = sizeof (Elf32_External_Rela);
- }
- else
- {
- rela_hdr->sh_type = SHT_REL;
- rela_hdr->sh_entsize = sizeof (Elf32_External_Rel);
- }
- rela_hdr->sh_flags = 0;
- rela_hdr->sh_addr = 0;
- rela_hdr->sh_offset = 0;
- rela_hdr->sh_addralign = 0;
- rela_hdr->size = 0;
- }
-
- if (stub_sec->flags & SEC_ALLOC)
- {
- this_hdr->sh_flags |= SHF_ALLOC;
- /* FIXME. If SEC_LOAD is true should we do something with
- with sh_type? */
- }
-
- if (!(stub_sec->flags & SEC_READONLY))
- this_hdr->sh_flags |= SHF_WRITE;
-
- if (stub_sec->flags & SEC_CODE)
- this_hdr->sh_flags |= SHF_EXECINSTR;
- }
-
- bfd_set_section_alignment (abfd, stub_sec, 2);
- stub_desc = new_stub (abfd, stub_sec, link_info);
- }
-
- if (!stub_desc)
- stub_desc = new_stub (abfd, stub_sec, link_info);
-
- /* Allocate memory to contain the stub. FIXME. Why isn't this using
- the BFD memory allocation routines? */
- if (!stub_desc->stub_contents)
- {
- stub_desc->allocated_size = STUB_BUFFER_INCR;
- stub_desc->stub_contents = (char *) malloc (STUB_BUFFER_INCR);
- }
- else if ((stub_desc->allocated_size - stub_desc->real_size) < STUB_MAX_SIZE)
- {
- stub_desc->allocated_size = stub_desc->allocated_size + STUB_BUFFER_INCR;
- stub_desc->stub_contents = (char *) realloc (stub_desc->stub_contents,
- stub_desc->allocated_size);
- }
-
- stub_desc->stub_secp
- = (int *) (stub_desc->stub_contents + stub_desc->real_size);
-
- /* Is this a millicode call? If so, the return address
- comes in on r31 rather than r2 (rp) so a slightly
- different code sequence is needed. */
-
- insn = data[0];
- rtn_reg = (insn & 0x03e00000) >> 21;
- if (rtn_reg == 31)
- milli = true;
-
- if (strcmp (symbol->name, "$$dyncall") == 0)
- dyncall = true;
-
- /* If we are creating a call from a stub to another stub, then
- never do the instruction reordering. We can tell if we are
- going to be calling one stub from another by the fact that
- the symbol name has '_stub_' (arg. reloc. stub) or '_lb_stub_'
- prepended to the name. Alternatively, the section of the
- symbol will be '.hppa_linker_stubs'. */
-
- if ((strncmp (symbol->name, "_stub_", 6) == 0)
- || (strncmp (symbol->name, "_lb_stub_", 9) == 0))
- {
- BFD_ASSERT (strcmp (symbol->section->name, ".hppa_linker_stubs") == 0);
- rtn_adjust = false;
- }
-
- /* Check to see if we modify the return pointer
- in the delay slot of the branch. */
- {
- unsigned delay_insn = data[1];
-
- /* If we nullify the delay slot, or if the delay slot contains an
- instruction that modifies the return pointer, then no additional
- modification of the return pointer is necessary. */
- if (insn & 2 || insn == 0)
- rtn_adjust = false;
- else
- {
- if (get_opcode (delay_insn) == LDO
- && (((delay_insn & 0x001f0000) >> 16) == rtn_reg))
- rtn_adjust = false;
- if (milli)
- rtn_adjust = false;
- }
- }
-
- sprintf (stub_sym_name,
- "_lb_stub_%s_%s", reloc_entry->sym_ptr_ptr[0]->name,
- rtn_adjust ? "RA" : "");
- stub_entry = find_stub_by_name(abfd, stub_sec, stub_sym_name);
-
- /* If a copy of this stub already exists re-use it. */
- if (stub_entry)
- {
- stub_sym = stub_entry->sym;
- /* Change symbol associated with the original relocation to point
- to the stub.
+ /* Load the high bits of the target address into %r1. */
+ insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
+ hppa_field_adjust (sym_value, 0, e_lrsel), 21);
+ bfd_put_32 (stub_bfd, insn, loc);
+ loc += 4;
- FIXME. Is there a need to change the relocation type too? */
- reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd,
- sizeof (asymbol *));
- if (!reloc_entry->sym_ptr_ptr)
+ /* If we are relocating a return value, then we're going to have
+ to return into the stub, then perform the return value relocation. */
+ if (strncmp (entry->root.string + 14, "NO", 2))
{
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- reloc_entry->sym_ptr_ptr[0] = stub_sym;
- reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
- }
- else
- {
- /* We will need to allocate a new stub. */
- stub_sym = bfd_make_empty_symbol (abfd);
- if (!stub_sym)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- stub_sym->name = bfd_zalloc (abfd, strlen (stub_sym_name) + 1);
- if (!stub_sym->name)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- strcpy ((char *) stub_sym->name, stub_sym_name);
- stub_sym->value
- = (char *) stub_desc->stub_secp - (char *) stub_desc->stub_contents;
- stub_sym->section = stub_sec;
- stub_sym->flags = BSF_LOCAL | BSF_FUNCTION;
- stub_entry = add_stub_by_name (abfd, stub_sec, stub_sym, link_info);
-
- /* Change symbol associated with the original relocation to point
- to the stub.
-
- FIXME. Is there a need to change the relocation type too? */
- reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (stub_desc->this_bfd,
- sizeof (asymbol *));
- if (!reloc_entry->sym_ptr_ptr)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- reloc_entry->sym_ptr_ptr[0] = stub_sym;
- reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
-
- /* Build the stub. */
-
- /* 1. initialization for the call. */
- NEW_INSTRUCTION (stub_entry, LDSID_31_1);
- NEW_INSTRUCTION (stub_entry, MTSP_1_SR0);
-
- if (!dyncall)
- {
- if (!milli)
+ /* To return to the stub we "ble" to the target and copy the return
+ pointer from %r31 into %r2. */
+ insn = hppa_rebuild_insn (stub_bfd,
+ BLE_SR4_R1,
+ hppa_field_adjust (sym_value, 0,
+ e_rrsel) >> 2,
+ 17);
+ bfd_put_32 (stub_bfd, insn, loc);
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
+
+ /* Reload the return pointer for our caller from the stack. */
+ bfd_put_32 (stub_bfd, LDW_M8R30_R31, loc + 8);
+ loc += 12;
+
+ /* Perform the return value relocation. */
+ if (!strncmp (entry->root.string + 14, "GF", 2))
{
- if (rtn_adjust)
- {
- NEW_INSTRUCTION (stub_entry, ADDI_M4_31_RP);
- }
- else
- {
- NEW_INSTRUCTION (stub_entry, COPY_31_2);
- }
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (28 << 16), loc);
+ bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | 4, loc + 4);
+ loc += 8;
}
- else
+ else if (!strncmp (entry->root.string + 14, "FG", 2))
{
- if (rtn_adjust)
- {
- NEW_INSTRUCTION (stub_entry, ADDI_M4_31_1);
- }
- else
- {
- NEW_INSTRUCTION (stub_entry, COPY_31_1);
- }
+ bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | 4, loc);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (28 << 16), loc + 4);
+ loc += 8;
}
-
- NEW_INSTRUCTION (stub_entry, LDIL_XXX_31);
- hppa_elf_stub_reloc (stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_L21);
-
- /* 2. Make the call. */
- if (!milli)
+ else if (!strncmp (entry->root.string + 2, "GD", 2))
{
- NEW_INSTRUCTION (stub_entry, BE_XXX_0_31);
- hppa_elf_stub_reloc (stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_ABS_CALL_R17);
- NEW_INSTRUCTION (stub_entry, COPY_2_31);
+ bfd_put_32 (stub_bfd, STW_ARG_M12R30 | (28 << 16), loc);
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (29 << 16), loc + 4);
+ bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | 4, loc + 8);
+ loc += 12;
}
- else
+ else if (!strncmp (entry->root.string + 2, "DG", 2))
{
- NEW_INSTRUCTION (stub_entry, BE_XXX_0_31);
- hppa_elf_stub_reloc (stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_ABS_CALL_R17);
- NEW_INSTRUCTION (stub_entry, COPY_1_31);
+ bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | 4, loc);
+ bfd_put_32 (stub_bfd, LDW_M12R30_ARG | (28 << 16), loc + 4);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (29 << 16), loc + 8);
+ loc += 12;
}
+ /* Branch back to the user's code now. */
+ bfd_put_32 (stub_bfd, BV_N_0_R31, loc);
+ loc += 4;
}
else
{
- /* 3. Branch back to the original location.
- (For non-millicode calls, this is accomplished with the
- COPY_31_2 instruction. For millicode calls, the return
- location is already in r2.) */
- if (rtn_adjust)
- {
- NEW_INSTRUCTION (stub_entry, ADDI_M4_31_RP);
- }
- NEW_INSTRUCTION (stub_entry, LDIL_XXX_31);
- hppa_elf_stub_reloc (stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_L21);
-
- NEW_INSTRUCTION (stub_entry, BE_XXX_0_31);
- hppa_elf_stub_reloc (stub_desc,
- abfd,
- target_sym,
- CURRENT_STUB_OFFSET (stub_entry),
- R_HPPA_ABS_CALL_R17);
- NEW_INSTRUCTION (stub_entry, COPY_2_31);
+ /* No return value relocation, so we can simply "be" to the
+ target and copy out return pointer into %r2. */
+ insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1,
+ hppa_field_adjust (sym_value, 0,
+ e_rrsel) >> 2, 17);
+ bfd_put_32 (stub_bfd, insn, loc);
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
+ loc += 8;
}
- }
- return stub_sym;
-}
-
-int
-hppa_elf_long_branch_needed_p (abfd, asec, reloc_entry, symbol, insn)
- bfd *abfd;
- asection *asec;
- arelent *reloc_entry;
- asymbol *symbol;
- unsigned insn;
-{
- long sym_value = get_symbol_value(symbol);
- int fmt = reloc_entry->howto->bitsize;
- unsigned char op = get_opcode(insn);
- unsigned raddr;
-
-#define too_far(val,num_bits) ((int)(val) > (1<<(num_bits))-1) || ((int)(val) < (-1<<(num_bits)))
- switch (op)
+ /* Update the location and offsets. */
+ stub_hash_table->location += (loc - begin_loc);
+ stub_hash_table->offset += (loc - begin_loc);
+ }
+ else
{
- case BL:
- raddr =
- reloc_entry->address + asec->output_offset + asec->output_section->vma;
- if (too_far(sym_value - raddr,fmt+1))
+ /* Create one of two variant long branch stubs. One for $$dyncall and
+ normal calls, the other for calls to millicode. */
+ unsigned long insn;
+ int millicode_call = 0;
+
+ if (!strncmp ("$$", sym_name, 2) && strcmp ("$$dyncall", sym_name))
+ millicode_call = 1;
+
+ /* First the return pointer adjustment. Depending on exact calling
+ sequence this instruction may be skipped. */
+ bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
+
+ /* The next two instructions are the long branch itself. A long branch
+ is formed with "ldil" loading the upper bits of the target address
+ into a register, then branching with "be" which adds in the lower bits.
+ Long branches to millicode nullify the delay slot of the "be". */
+ insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
+ hppa_field_adjust (sym_value, 0, e_lrsel), 21);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
+ insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1 | (millicode_call ? 2 : 0),
+ hppa_field_adjust (sym_value, 0, e_rrsel) >> 2,
+ 17);
+ bfd_put_32 (stub_bfd, insn, loc + 8);
+
+ if (!millicode_call)
{
-#ifdef DETECT_STUBS
- fprintf(stderr,"long_branch needed on BL insn: abfd=%s,sym=%s,distance=0x%x\n",abfd->filename,symbol->name,sym_value - reloc_entry->address);
-#endif
- return 1;
+ /* The sequence to call this stub places the return pointer into %r31,
+ the final target expects the return pointer in %r2, so copy the
+ return pointer into the proper register. */
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 12);
+
+ /* Update the location and offsets. */
+ stub_hash_table->location += 16;
+ stub_hash_table->offset += 16;
}
- break;
- }
- return 0;
-}
-
-#define STUB_SYM_BUFFER_INC 5
-
-asymbol *
-hppa_look_for_stubs_in_section (stub_bfd, abfd, output_bfd, asec,
- syms, new_sym_cnt, link_info)
- bfd *stub_bfd;
- bfd *abfd;
- bfd *output_bfd;
- asection *asec;
- asymbol **syms;
- int *new_sym_cnt;
- struct bfd_link_info *link_info;
-{
- int i;
- int stub_types[5];
- asymbol *new_syms = (asymbol *) NULL;
- int new_cnt = 0;
- int new_max = 0;
-
- /* Relocations are in different places depending on whether this is
- an output section or an input section. Also, the relocations are
- in different forms. Sigh. Luckily, we have
- bfd_canonicalize_reloc() to straighten this out for us . */
-
- if (asec->reloc_count > 0)
- {
- arelent **reloc_vector
- = (arelent **) alloca (asec->reloc_count * (sizeof (arelent *) + 1));
-
- bfd_canonicalize_reloc (abfd, asec, reloc_vector, syms);
- for (i = 0; i < asec->reloc_count; i++)
+ else
{
- arelent *rle = reloc_vector[i];
-
- switch (rle->howto->type)
- {
- case R_HPPA_ABS_CALL_11:
- case R_HPPA_ABS_CALL_14:
- case R_HPPA_ABS_CALL_17:
- case R_HPPA_ABS_CALL_L21:
- case R_HPPA_ABS_CALL_R11:
- case R_HPPA_ABS_CALL_R14:
- case R_HPPA_ABS_CALL_R17:
- case R_HPPA_ABS_CALL_LS21:
- case R_HPPA_ABS_CALL_RS11:
- case R_HPPA_ABS_CALL_RS14:
- case R_HPPA_ABS_CALL_RS17:
- case R_HPPA_ABS_CALL_LD21:
- case R_HPPA_ABS_CALL_RD11:
- case R_HPPA_ABS_CALL_RD14:
- case R_HPPA_ABS_CALL_RD17:
- case R_HPPA_ABS_CALL_LR21:
- case R_HPPA_ABS_CALL_RR14:
- case R_HPPA_ABS_CALL_RR17:
- case R_HPPA_PCREL_CALL_11:
- case R_HPPA_PCREL_CALL_14:
- case R_HPPA_PCREL_CALL_17:
- case R_HPPA_PCREL_CALL_12:
- case R_HPPA_PCREL_CALL_L21:
- case R_HPPA_PCREL_CALL_R11:
- case R_HPPA_PCREL_CALL_R14:
- case R_HPPA_PCREL_CALL_R17:
- case R_HPPA_PCREL_CALL_LS21:
- case R_HPPA_PCREL_CALL_RS11:
- case R_HPPA_PCREL_CALL_RS14:
- case R_HPPA_PCREL_CALL_RS17:
- case R_HPPA_PCREL_CALL_LD21:
- case R_HPPA_PCREL_CALL_RD11:
- case R_HPPA_PCREL_CALL_RD14:
- case R_HPPA_PCREL_CALL_RD17:
- case R_HPPA_PCREL_CALL_LR21:
- case R_HPPA_PCREL_CALL_RR14:
- case R_HPPA_PCREL_CALL_RR17:
- {
- symext_entryS caller_ar
- = (symext_entryS) HPPA_R_ARG_RELOC (rle->addend);
- unsigned insn[2];
-
- bfd_get_section_contents (abfd, asec, insn, rle->address,
- sizeof(insn));
- if (hppa_elf_arg_reloc_needed_p (abfd, rle, stub_types,
- caller_ar))
- {
- /* Generate a stub and keep track of the new symbol. */
- asymbol *r;
-
- if (new_cnt == new_max)
- {
- new_max += STUB_SYM_BUFFER_INC;
- new_syms = (asymbol *)
- realloc (new_syms, new_max * sizeof (asymbol));
- }
-
- /* The rtn_adjust argument is true here because we
- know that we have a branch and (with a few exceptions
- detailed under the relocation code for relocation type
- R_HPPA_STUB_CALL_17) it will be possible to perform
- the code reorientation. */
- r = hppa_elf_build_arg_reloc_stub (stub_bfd, output_bfd,
- link_info, rle,
- stub_types,
- true, insn);
- new_syms[new_cnt++] = *r;
- }
-
- /* We need to retrieve the section contents to check for
- long branch stubs. */
- if (hppa_elf_long_branch_needed_p (abfd, asec, rle,
- rle->sym_ptr_ptr[0],
- insn[0]))
- {
- /* Generate a stub and keep track of the new symbol. */
- asymbol *r;
-
- if (new_cnt == new_max)
- {
- new_max += STUB_SYM_BUFFER_INC;
- new_syms = (asymbol *)
- realloc (new_syms, (new_max * sizeof (asymbol)));
- }
- r = hppa_elf_build_long_branch_stub (stub_bfd, output_bfd,
- link_info, rle,
- rle->sym_ptr_ptr[0],
- insn);
- new_syms[new_cnt++] = *r;
- }
- }
- break;
-
- case R_HPPA_PLABEL_32:
- case R_HPPA_PLABEL_11:
- case R_HPPA_PLABEL_14:
- case R_HPPA_PLABEL_L21:
- case R_HPPA_PLABEL_R11:
- case R_HPPA_PLABEL_R14:
- {
- /* On a plabel relocation, assume the arguments of the
- caller are set up in general registers.
- NOTE: 0x155 = ARGW0=CR,ARGW1=GR,ARGW2=GR,RETVAL=GR */
- symext_entryS caller_ar = (symext_entryS) 0x155;
- unsigned insn[2];
-
- bfd_get_section_contents (abfd, asec, insn, rle->address,
- sizeof(insn));
-
- if (hppa_elf_arg_reloc_needed_p (abfd, rle, stub_types,
- caller_ar))
- {
- /* Generate a plabel stub and keep track of the
- new symbol. */
- asymbol *r;
- int rtn_adjust;
-
- if (new_cnt == new_max)
- {
- new_max += STUB_SYM_BUFFER_INC;
- new_syms = (asymbol *) realloc (new_syms, new_max
- * sizeof (asymbol));
- }
-
- /* Determine whether a return adjustment
- (see the relocation code for relocation type
- R_HPPA_STUB_CALL_17) is possible. Basically,
- determine whether we are looking at a branch or not. */
-
- if (rle->howto->type == R_HPPA_PLABEL_32)
- rtn_adjust = false;
- else
- {
- switch (get_opcode(insn[0]))
- {
- case BLE:
- case BE:
- rtn_adjust = true;
- break;
- default:
- rtn_adjust = false;
- }
- }
- r = hppa_elf_build_arg_reloc_stub (stub_bfd, output_bfd,
- link_info, rle,
- stub_types,
- rtn_adjust, insn);
- new_syms[new_cnt++] = *r;
- }
- }
- break;
-
- default:
- break;
-
- }
+ /* Update the location and offsets. */
+ stub_hash_table->location += 12;
+ stub_hash_table->offset += 12;
}
+
}
- *new_sym_cnt = new_cnt;
- return new_syms;
+ return true;
}
+/* External entry points for sizing and building linker stubs. */
-char *linker_stubs = NULL;
-int linker_stubs_size = 0;
-int linker_stubs_max_size = 0;
-#define STUB_ALLOC_INCR 100
+/* Build all the stubs associated with the current output file. The
+ stubs are kept in a hash table attached to the main linker hash
+ table. This is called via hppaelf_finish in the linker. */
boolean
-hppa_elf_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
+elf32_hppa_build_stubs (stub_bfd, info)
+ bfd *stub_bfd;
+ struct bfd_link_info *info;
{
- if (strcmp(section->name, ".hppa_linker_stubs") == 0)
- {
- if (linker_stubs_max_size < offset + count)
- {
- linker_stubs_max_size = offset + count + STUB_ALLOC_INCR;
- linker_stubs = (char *)realloc(linker_stubs, linker_stubs_max_size);
- }
-
- if (offset + count > linker_stubs_size)
- linker_stubs_size = offset + count;
+ /* The stub BFD only has one section. */
+ asection *stub_sec = stub_bfd->sections;
+ struct elf32_hppa_stub_hash_table *table;
+ unsigned int size;
+ void *args[2];
+
+ /* So we can pass both the BFD for the stubs and the link info
+ structure to the routine which actually builds stubs. */
+ args[0] = stub_bfd;
+ args[1] = info;
+
+ /* Allocate memory to hold the linker stubs. */
+ size = bfd_section_size (stub_bfd, stub_sec);
+ stub_sec->contents = (unsigned char *) bfd_zalloc (stub_bfd, size);
+ if (stub_sec->contents == NULL)
+ return false;
+ table = elf32_hppa_hash_table(info)->stub_hash_table;
+ table->location = stub_sec->contents;
+
+ /* Build the stubs as directed by the stub hash table. */
+ elf32_hppa_stub_hash_traverse (table, elf32_hppa_build_one_stub, args);
- memcpy(linker_stubs + offset,location,count);
- return (true);
- }
- else
- return bfd_elf32_set_section_contents (abfd, section, location,
- offset, count);
+ return true;
}
-/* Get the contents of the given section.
-
- This is special for PA ELF because some sections (such as linker stubs)
- may reside in memory rather than on disk, or in the case of the symbol
- extension section, the contents may need to be generated from other
- information contained in the BFD. */
+/* Determine and set the size of the stub section for a final link.
+
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bl"
+ instruction or calls where the caller and callee disagree on the
+ location of their arguments or return value. */
boolean
-hppa_elf_get_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
+elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
+ bfd *stub_bfd;
+ bfd *output_bfd;
+ struct bfd_link_info *link_info;
{
- /* If this is the linker stub section, then its contents are contained
- in memory rather than on disk. FIXME. Is that always right? What
- about the case where a final executable is read in and a user tries
- to get the contents of this section? In that case the contents would
- be on disk like everything else. */
- if (strcmp (section->name, ".hppa_linker_stubs") == 0)
- {
- elf32_hppa_stub_description *stub_desc = find_stubs (abfd, section);
-
- if (count == 0)
- return true;
-
- /* Sanity check our arguments. */
- if ((bfd_size_type) (offset + count) > section->_raw_size
- || (bfd_size_type) (offset + count) > stub_desc->real_size)
- return (false);
-
- memcpy (location, stub_desc->stub_contents + offset, count);
- return (true);
- }
-
- /* The symbol extension section also needs special handling. Its
- contents might be on the disk, in memory, or still need to
- be generated. */
- else if (strcmp (section->name, ".hppa_symextn") == 0)
+ bfd *input_bfd;
+ asection *section, *stub_sec = 0;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *local_syms, *isym, **all_local_syms;
+ Elf32_External_Sym *ext_syms, *esym;
+ unsigned int i, index, bfd_count = 0;
+ struct elf32_hppa_stub_hash_table *stub_hash_table = 0;
+ struct elf32_hppa_args_hash_table *args_hash_table = 0;
+
+ /* Create and initialize the stub hash table. */
+ stub_hash_table = ((struct elf32_hppa_stub_hash_table *)
+ bfd_malloc (sizeof (struct elf32_hppa_stub_hash_table)));
+ if (!stub_hash_table)
+ goto error_return;
+
+ if (!elf32_hppa_stub_hash_table_init (stub_hash_table, stub_bfd,
+ elf32_hppa_stub_hash_newfunc))
+ goto error_return;
+
+ /* Likewise for the argument location hash table. */
+ args_hash_table = ((struct elf32_hppa_args_hash_table *)
+ bfd_malloc (sizeof (struct elf32_hppa_args_hash_table)));
+ if (!args_hash_table)
+ goto error_return;
+
+ if (!elf32_hppa_args_hash_table_init (args_hash_table,
+ elf32_hppa_args_hash_newfunc))
+ goto error_return;
+
+ /* Attach the hash tables to the main hash table. */
+ elf32_hppa_hash_table(link_info)->stub_hash_table = stub_hash_table;
+ elf32_hppa_hash_table(link_info)->args_hash_table = args_hash_table;
+
+ /* Count the number of input BFDs. */
+ for (input_bfd = link_info->input_bfds;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next)
+ bfd_count++;
+
+ /* We want to read in symbol extension records only once. To do this
+ we need to read in the local symbols in parallel and save them for
+ later use; so hold pointers to the local symbols in an array. */
+ all_local_syms
+ = (Elf_Internal_Sym **) bfd_malloc (sizeof (Elf_Internal_Sym *)
+ * bfd_count);
+ if (all_local_syms == NULL)
+ goto error_return;
+ memset (all_local_syms, 0, sizeof (Elf_Internal_Sym *) * bfd_count);
+
+ /* Walk over all the input BFDs adding entries to the args hash table
+ for all the external functions. */
+ for (input_bfd = link_info->input_bfds, index = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, index++)
{
- /* If there are no output sections, then read the contents of the
- symbol extension section from disk. */
- if (section->output_section == NULL
- && abfd->direction == read_direction)
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ /* We need an array of the local symbols attached to the input bfd.
+ Unfortunately, we're going to have to read & swap them in. */
+ local_syms
+ = (Elf_Internal_Sym *) bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf_Internal_Sym));
+ if (local_syms == NULL)
{
- return bfd_generic_get_section_contents (abfd, section, location,
- offset, count);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
}
-
- /* If this is the first time through, and there are output sections,
- then build the symbol extension section based on other information
- contained in the BFD. */
- else if (! symext_chain_built)
+ all_local_syms[index] = local_syms;
+
+ ext_syms
+ = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym));
+ if (ext_syms == NULL)
{
- int i;
- int *symtab_map =
- (int *) elf_sym_extra(section->output_section->owner);
-
- for (i = 0; i < section->output_section->owner->symcount; i++)
- {
- elf_hppa_tc_symbol(section->output_section->owner,
- ((elf_symbol_type *)
- section->output_section->owner->outsymbols[i]),
- symtab_map[i], &symext_rootP, &symext_lastP);
- }
- symext_chain_built++;
- elf_hppa_tc_make_sections (section->output_section->owner,
- symext_rootP);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
}
- /* At this point we know that the symbol extension section has been
- built. We just need to copy it into the user's buffer. */
- if (count == 0)
- return true;
-
- /* Sanity check our arguments. */
- if ((bfd_size_type) (offset + count) > section->_raw_size
- || (bfd_size_type) (offset + count) > symextn_contents_real_size)
- return (false);
-
- memcpy (location,
- ((char *)symextn_contents + section->output_offset + offset),
- count);
- return (true);
- }
- else
- return bfd_generic_get_section_contents (abfd, section, location,
- offset, count);
-}
-
-static void
-elf_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd;
- arelent *cache_ptr;
- Elf32_Internal_Rela *dst;
-{
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_HPPA_UNIMPLEMENTED);
- cache_ptr->howto = &elf_hppa_howto_table[ELF32_R_TYPE(dst->r_info)];
-}
-
-static void
-elf32_hppa_backend_symbol_processing (abfd, sym)
- bfd *abfd;
- asymbol *sym;
-{
- /* Is this a definition of $global$? If so, keep it because it will be
- needed if any relocations are performed. */
-
- if (!strcmp (sym->name, "$global$")
- && sym->section != &bfd_und_section)
- {
- global_symbol = sym;
- }
-}
-
-#define elf_backend_symbol_processing elf32_hppa_backend_symbol_processing
-
-struct elf32_hppa_symextn_map_struct
-{
- int old_index;
- bfd *bfd;
- asymbol *sym;
- int new_index;
-};
-
-static struct elf32_hppa_symextn_map_struct *elf32_hppa_symextn_map;
-static int elf32_hppa_symextn_map_size;
+ if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_read (ext_syms, 1,
+ (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym)), input_bfd)
+ != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ free (ext_syms);
+ goto error_return;
+ }
-static boolean
-elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt)
- bfd *abfd;
- elf_symbol_type *esyms;
- int symcnt;
-{
- Elf32_Internal_Shdr *symextn_hdr = bfd_elf_find_section (abfd, SYMEXTN_SECTION_NAME);
- int i;
- int current_sym_idx = 0;
+ /* Swap the local symbols in. */
+ isym = local_syms;
+ esym = ext_syms;
+ for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++)
+ bfd_elf32_swap_symbol_in (input_bfd, esym, isym);
- /* If the symbol extension section does not exist, all the symbol */
- /* all the symbol extension information is assumed to be zero. */
+ /* Now we can free the external symbols. */
+ free (ext_syms);
- if (symextn_hdr == NULL)
- {
- for (i = 0; i < symcnt; i++)
+ if (elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table,
+ local_syms) == false)
{
- esyms[i].tc_data.hppa_arg_reloc = 0;
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
}
- return (true);
}
- /* allocate a buffer of the appropriate size for the symextn section */
+ /* Magic as we know the stub bfd only has one section. */
+ stub_sec = stub_bfd->sections;
- symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size);
- if (!symextn_hdr->contents)
+ /* If generating a relocateable output file, then we don't
+ have to examine the relocs. */
+ if (link_info->relocateable)
{
- bfd_set_error (bfd_error_no_memory);
- return false;
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
}
- symextn_hdr->size = symextn_hdr->sh_size;
-
- /* read in the symextn section */
- if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1)
- {
- bfd_set_error (bfd_error_system_call);
- return (false);
- }
- if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->size, abfd)
- != symextn_hdr->size)
+ /* Now that we have argument location information for all the global
+ functions we can start looking for stubs. */
+ for (input_bfd = link_info->input_bfds, index = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, index++)
{
- free ((PTR)symextn_hdr->contents);
- bfd_set_error (bfd_error_system_call);
- return (false);
- }
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
- /* parse the entries, updating the symtab entries as we go */
+ local_syms = all_local_syms[index];
- for (i = 0; i < symextn_hdr->size / sizeof(symext_entryS); i++)
- {
- symext_entryS *seP = ((symext_entryS *)symextn_hdr->contents) + i;
- int se_value = ELF32_HPPA_SX_VAL(*seP);
- int se_type = ELF32_HPPA_SX_TYPE(*seP);
-
- switch (se_type)
+ /* Walk over each section attached to the input bfd. */
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
{
- case HPPA_SXT_NULL:
- break;
-
- case HPPA_SXT_SYMNDX:
- if (se_value >= symcnt)
+ Elf_Internal_Shdr *input_rel_hdr;
+ Elf32_External_Rela *external_relocs, *erelaend, *erela;
+ Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
+
+ /* If there aren't any relocs, then there's nothing to do. */
+ if ((section->flags & SEC_RELOC) == 0
+ || section->reloc_count == 0)
+ continue;
+
+ /* Allocate space for the external relocations. */
+ external_relocs
+ = ((Elf32_External_Rela *)
+ bfd_malloc (section->reloc_count
+ * sizeof (Elf32_External_Rela)));
+ if (external_relocs == NULL)
{
- bfd_set_error (bfd_error_bad_value);
- bfd_perror("elf32_hppa_backend_symbol_table_processing -- symbol index");
- return (false);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
}
- current_sym_idx = se_value - 1;
- break;
- case HPPA_SXT_ARG_RELOC:
- esyms[current_sym_idx].tc_data.hppa_arg_reloc = se_value;
- break;
+ /* Likewise for the internal relocations. */
+ internal_relocs
+ = ((Elf_Internal_Rela *)
+ bfd_malloc (section->reloc_count * sizeof (Elf_Internal_Rela)));
+ if (internal_relocs == NULL)
+ {
+ free (external_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
- default:
- bfd_set_error (bfd_error_bad_value);
- bfd_perror("elf32_hppa_backend_symbol_table_processing");
- return (false);
- }
- }
- return (true);
-}
+ /* Read in the external relocs. */
+ input_rel_hdr = &elf_section_data (section)->rel_hdr;
+ if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_read (external_relocs, 1, input_rel_hdr->sh_size,
+ input_bfd) != input_rel_hdr->sh_size)
+ {
+ free (external_relocs);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
-#define elf_backend_symbol_table_processing elf32_hppa_backend_symbol_table_processing
+ /* Swap in the relocs. */
+ erela = external_relocs;
+ erelaend = erela + section->reloc_count;
+ irela = internal_relocs;
+ for (; erela < erelaend; erela++, irela++)
+ bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
-static boolean
-elf32_hppa_backend_section_processing (abfd, secthdr)
- bfd *abfd;
- Elf32_Internal_Shdr *secthdr;
-{
- int i,j,k;
+ /* We're done with the external relocs, free them. */
+ free (external_relocs);
- if (secthdr->sh_type == SHT_HPPA_SYMEXTN)
- {
- for (i = 0; i < secthdr->size / sizeof(symext_entryS); i++)
- {
- symext_entryS *seP = ((symext_entryS *)secthdr->contents) + i;
- int se_value = ELF32_HPPA_SX_VAL(*seP);
- int se_type = ELF32_HPPA_SX_TYPE(*seP);
-
- switch (se_type)
+ /* Now examine each relocation. */
+ irela = internal_relocs;
+ irelaend = irela + section->reloc_count;
+ for (; irela < irelaend; irela++)
{
- case HPPA_SXT_NULL:
- break;
-
- case HPPA_SXT_SYMNDX:
- for (j = 0; j < abfd->symcount; j++)
+ long r_type, callee_args, caller_args, size_of_stub;
+ unsigned long r_index;
+ struct elf_link_hash_entry *hash;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ struct elf32_hppa_args_hash_entry *args_hash;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ const char *sym_name;
+ symvalue sym_value;
+ bfd_vma location, destination;
+ char *new_name = NULL;
+
+ r_type = ELF32_R_TYPE (irela->r_info);
+ r_index = ELF32_R_SYM (irela->r_info);
+
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
{
- /* locate the map entry for this symbol, if there is one. */
- /* modify the symbol extension section symbol index entry */
- /* to reflect the new symbol table index */
-
- for (k = 0; k < elf32_hppa_symextn_map_size; k++)
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Only look for stubs on call instructions or plabel
+ references. */
+ if (r_type != R_PARISC_PCREL17F
+ && r_type != R_PARISC_PLABEL32
+ && r_type != R_PARISC_PLABEL21L
+ && r_type != R_PARISC_PLABEL14R)
+ continue;
+
+ /* Now determine the call target, its name, value, section
+ and argument relocation bits. */
+ hash = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_index < symtab_hdr->sh_info)
+ {
+ /* It's a local symbol. */
+ Elf_Internal_Shdr *hdr;
+
+ sym = local_syms + r_index;
+ hdr = elf_elfsections (input_bfd)[sym->st_shndx];
+ sym_sec = hdr->bfd_section;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ sym_value = (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value);
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+
+ /* Tack on an ID so we can uniquely identify this local
+ symbol in the stub or arg info hash tables. */
+ new_name = bfd_malloc (strlen (sym_name) + 10);
+ if (new_name == 0)
{
- if (elf32_hppa_symextn_map[k].old_index == se_value
- && elf32_hppa_symextn_map[k].bfd == abfd->outsymbols[j]->the_bfd
- && elf32_hppa_symextn_map[k].sym == abfd->outsymbols[j])
- {
- bfd_put_32(abfd,
- ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, j),
- (char *)seP);
- }
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
}
+ sprintf (new_name, "%s_%08x", sym_name, (int)sym_sec);
+ sym_name = new_name;
}
- break;
-
- case HPPA_SXT_ARG_RELOC:
- break;
-
- default:
- bfd_set_error (bfd_error_bad_value);
- bfd_perror("elf32_hppa_backend_section_processing");
- return (false);
- }
- }
- }
- return true;
-}
-
-#define elf_backend_section_processing elf32_hppa_backend_section_processing
-
-static boolean
-elf32_hppa_backend_section_from_shdr (abfd, hdr, name)
- bfd *abfd;
- Elf32_Internal_Shdr *hdr;
- char *name;
-{
- asection *newsect;
+ else
+ {
+ /* It's an external symbol. */
+ long index;
- if (hdr->sh_type == SHT_HPPA_SYMEXTN)
- {
- BFD_ASSERT (strcmp(name,".hppa_symextn") == 0);
+ index = r_index - symtab_hdr->sh_info;
+ hash = elf_sym_hashes (input_bfd)[index];
+ if (hash->root.type == bfd_link_hash_defined
+ || hash->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = hash->root.u.def.section;
+ sym_name = hash->root.root.string;
+ sym_value = hash->root.u.def.value;
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ }
- /* Bits that get saved. This one is real. */
- if (!hdr->rawdata)
- {
- newsect = bfd_make_section (abfd, name);
- if (newsect != NULL)
- {
- newsect->vma = hdr->sh_addr;
- newsect->_raw_size = hdr->sh_size;
- newsect->filepos = hdr->sh_offset; /* so we can read back the bits */
- newsect->flags |= SEC_HAS_CONTENTS;
- newsect->alignment_power = hdr->sh_addralign;
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ sym_name, false, false);
- if (hdr->sh_flags & SHF_ALLOC)
+ /* Get both caller and callee argument information. */
+ if (args_hash == NULL)
+ callee_args = 0;
+ else
+ callee_args = args_hash->arg_bits;
+
+ /* For calls get the caller's bits from the addend of
+ the call relocation. For PLABELS the caller's bits
+ are assumed to have all args & return values in general
+ registers (0x155). */
+ if (r_type == R_PARISC_PCREL17F)
+ caller_args = HPPA_R_ARG_RELOC (irela->r_addend);
+ else
+ caller_args = 0x155;
+
+ /* Now determine where the call point is. */
+ location = (section->output_offset
+ + section->output_section->vma
+ + irela->r_offset);
+
+ /* We only care about the destination for PCREL function
+ calls (eg. we don't care for PLABELS). */
+ if (r_type != R_PARISC_PCREL17F)
+ location = destination;
+
+ /* Determine what (if any) linker stub is needed and its
+ size (in bytes). */
+ size_of_stub = elf32_hppa_size_of_stub (callee_args,
+ caller_args,
+ location,
+ destination,
+ sym_name);
+ if (size_of_stub != 0)
{
- newsect->flags |= SEC_ALLOC;
- newsect->flags |= SEC_LOAD;
- }
+ char *stub_name;
+ unsigned int len;
- if (!(hdr->sh_flags & SHF_WRITE))
- newsect->flags |= SEC_READONLY;
+ /* Get the name of this stub. */
+ len = strlen (sym_name);
+ len += 23;
- if (hdr->sh_flags & SHF_EXECINSTR)
- newsect->flags |= SEC_CODE; /* FIXME: may only contain SOME code */
- else
- newsect->flags |= SEC_DATA;
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ {
+ /* Because sym_name was mallocd above for local
+ symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ elf32_hppa_name_of_stub (caller_args, callee_args,
+ location, destination, stub_name);
+ strcat (stub_name + 22, sym_name);
+
+ /* Because sym_name was malloced above for local symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
+ if (stub_hash != NULL)
+ {
+ /* The proper stub has already been created, nothing
+ else to do. */
+ free (stub_name);
+ }
+ else
+ {
+ bfd_set_section_size (stub_bfd, stub_sec,
+ (bfd_section_size (stub_bfd,
+ stub_sec)
+ + size_of_stub));
+
+ /* Enter this entry into the linker stub hash table. */
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table,
+ stub_name, true, true);
+ if (stub_hash == NULL)
+ {
+ free (stub_name);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
- hdr->rawdata = (void *) newsect;
+ /* We'll need these to determine the address that the
+ stub will branch to. */
+ stub_hash->target_value = sym_value;
+ stub_hash->target_section = sym_sec;
+ }
+ free (stub_name);
+ }
}
+ /* We're done with the internal relocs, free them. */
+ free (internal_relocs);
}
- return true;
}
- return false;
-}
-
-#define elf_backend_section_from_shdr elf32_hppa_backend_section_from_shdr
-
-static boolean
-elf32_hppa_backend_fake_sections (abfd, secthdr, asect)
- bfd *abfd;
- Elf_Internal_Shdr *secthdr;
- asection *asect;
-{
-
- if (strcmp(asect->name, ".hppa_symextn") == 0)
- {
- secthdr->sh_type = SHT_HPPA_SYMEXTN;
- secthdr->sh_flags = 0;
- secthdr->sh_info = elf_section_data(asect)->rel_hdr.sh_link;
- secthdr->sh_link = elf_onesymtab(abfd);
- return true;
- }
-
- if (!strcmp (asect->name, ".hppa_unwind"))
- {
- secthdr->sh_type = SHT_PROGBITS;
- /* Unwind descriptors are not part of the program memory image. */
- secthdr->sh_flags = 0;
- secthdr->sh_info = 0;
- secthdr->sh_link = 0;
- secthdr->sh_entsize = 16;
- return true;
- }
-
- /* @@ Should this be CPU specific?? KR */
- if (!strcmp (asect->name, ".stabstr"))
- {
- secthdr->sh_type = SHT_STRTAB;
- secthdr->sh_flags = 0;
- secthdr->sh_info = 0;
- secthdr->sh_link = 0;
- secthdr->sh_entsize = 0;
- return true;
- }
-
- return false;
-}
-
-#define elf_backend_fake_sections elf32_hppa_backend_fake_sections
+ /* We're done with the local symbols, free them. */
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
-static boolean
-elf32_hppa_backend_section_from_bfd_section (abfd, hdr, asect, retval)
- bfd *abfd;
- Elf32_Internal_Shdr *hdr;
- asection *asect;
- int *retval;
-{
- if (hdr->sh_type == SHT_HPPA_SYMEXTN)
+error_return:
+ /* Return gracefully, avoiding dangling references to the hash tables. */
+ if (stub_hash_table)
{
- if (hdr->rawdata)
- {
- if (((struct sec *) (hdr->rawdata)) == asect)
- {
- BFD_ASSERT (strcmp(asect->name, ".hppa_symextn") == 0);
- return true;
- }
- }
+ elf32_hppa_hash_table(link_info)->stub_hash_table = NULL;
+ free (stub_hash_table);
}
- else if (hdr->sh_type == SHT_STRTAB)
+ if (args_hash_table)
{
- if (hdr->rawdata)
- {
- if (((struct sec *) (hdr->rawdata)) == asect)
- {
- BFD_ASSERT (strcmp (asect->name, ".stabstr") == 0);
- return true;
- }
- }
+ elf32_hppa_hash_table(link_info)->args_hash_table = NULL;
+ free (args_hash_table);
}
-
+ /* Set the size of the stub section to zero since we're never going
+ to create them. Avoids losing when we try to get its contents
+ too. */
+ bfd_set_section_size (stub_bfd, stub_sec, 0);
return false;
}
-#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
-#define elf_backend_section_from_bfd_section elf32_hppa_backend_section_from_bfd_section
-
-#define bfd_generic_get_section_contents hppa_elf_get_section_contents
-#define bfd_elf32_set_section_contents hppa_elf_set_section_contents
+/* Misc BFD support code. */
+#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
+#define bfd_elf32_bfd_is_local_label_name hppa_elf_is_local_label_name
+
+/* Symbol extension stuff. */
+#define bfd_elf32_set_section_contents elf32_hppa_set_section_contents
+#define elf_info_to_howto elf32_hppa_info_to_howto
+#define elf_backend_symbol_table_processing \
+ elf32_hppa_backend_symbol_table_processing
+#define elf_backend_begin_write_processing \
+ elf32_hppa_backend_begin_write_processing
+#define elf_backend_final_write_processing \
+ elf32_hppa_backend_final_write_processing
+
+/* Stuff for the BFD linker. */
+#define elf_backend_relocate_section elf32_hppa_relocate_section
+#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
+#define elf_backend_link_output_symbol_hook \
+ elf32_hppa_link_output_symbol_hook
+#define bfd_elf32_bfd_link_hash_table_create \
+ elf32_hppa_link_hash_table_create
#define TARGET_BIG_SYM bfd_elf32_hppa_vec
#define TARGET_BIG_NAME "elf32-hppa"
#define ELF_ARCH bfd_arch_hppa
-#define ELF_MACHINE_CODE EM_HPPA
+#define ELF_MACHINE_CODE EM_PARISC
#define ELF_MAXPAGESIZE 0x1000
#include "elf32-target.h"
projects / thirdparty / binutils-gdb.git / blobdiff