# This shell script emits a C file. -*- C -*-
-# Copyright (C) 2012-2016 Free Software Foundation, Inc.
+# Copyright (C) 2012-2021 Free Software Foundation, Inc.
# Contributed by Andes Technology Corporation.
#
# This file is part of the GNU Binutils.
fragment <<EOF
-#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/nds32.h"
#include "bfd_stdint.h"
static int relax_fp_as_gp = 1; /* --mrelax-omit-fp */
static int eliminate_gc_relocs = 0; /* --meliminate-gc-relocs */
static FILE *sym_ld_script = NULL; /* --mgen-symbol-ld-script=<file> */
+static int hyper_relax = 1; /* --mhyper-relax */
+static int tls_desc_trampoline = 0; /* --m[no]tlsdesc-trampoline. */
/* Disable if linking a dynamically linked executable. */
static int load_store_relax = 1;
-static int target_optimize = 0; /* Switch optimization. */
-static int relax_status = 0; /* Finished optimization. */
-static int relax_round = 0; /* Going optimization. */
-static FILE *ex9_export_file = NULL; /* --mexport-ex9=<file> */
-static FILE *ex9_import_file = NULL; /* --mimport-ex9=<file> */
-static int update_ex9_table = 0; /* --mupdate-ex9. */
-static int ex9_limit = 511;
-static bfd_boolean ex9_loop_aware = FALSE; /* Ignore ex9 if inside a loop. */
-static bfd_boolean ifc_loop_aware = FALSE; /* Ignore ifc if inside a loop. */
/* Save the target options into output bfd to avoid using to many global
variables. Do this after the output has been created, but before
if (strstr (bfd_get_target (link_info.output_bfd), "nds32") == NULL)
{
/* Check the output target is nds32. */
- einfo ("%F%X%P: error: Cannot change output format whilst "
- "linking NDS32 binaries.\n");
+ einfo (_("%F%P: error: cannot change output format whilst "
+ "linking %s binaries\n"), "NDS32");
return;
}
- bfd_elf32_nds32_set_target_option (&link_info, relax_fp_as_gp,
+ bfd_elf32_nds32_set_target_option (&link_info,
+ relax_fp_as_gp,
eliminate_gc_relocs,
sym_ld_script,
- load_store_relax,
- target_optimize, relax_status, relax_round,
- ex9_export_file, ex9_import_file,
- update_ex9_table, ex9_limit,
- ex9_loop_aware, ifc_loop_aware);
+ hyper_relax,
+ tls_desc_trampoline,
+ load_store_relax);
}
static void
nds32_elf_after_parse (void)
{
- if (bfd_link_relocatable (&link_info))
+ if (bfd_link_relocatable (&link_info)
+ || bfd_link_pic (&link_info))
DISABLE_RELAXATION;
if (!RELAXATION_ENABLED)
- {
- target_optimize = target_optimize & (!NDS32_RELAX_JUMP_IFC_ON);
- target_optimize = target_optimize & (!NDS32_RELAX_EX9_ON);
- relax_fp_as_gp = 0;
- }
+ relax_fp_as_gp = 0;
- if (ex9_import_file != NULL)
- {
- ex9_export_file = NULL;
- target_optimize = target_optimize & (!NDS32_RELAX_EX9_ON);
- }
- else
- update_ex9_table = 0;
-
- if (bfd_link_pic (&link_info))
- {
- target_optimize = target_optimize & (!NDS32_RELAX_JUMP_IFC_ON);
- target_optimize = target_optimize & (!NDS32_RELAX_EX9_ON);
- }
-
- gld${EMULATION_NAME}_after_parse ();
+ ldelf_after_parse ();
}
static void
&& abi_ver != (elf_elfheader (abfd)->e_flags & EF_NDS_ABI))
{
/* Incompatible objects. */
- einfo (_("%F%B: ABI version of object files mismatched\n"), abfd);
+ einfo (_("%F%P: %pB: ABI version of object files mismatched\n"),
+ abfd);
}
-
-#if defined NDS32_EX9_EXT
- /* Append .ex9.itable section in the last input object file. */
- if (abfd->link_next == NULL && (target_optimize & NDS32_RELAX_EX9_ON))
- {
- asection *itable;
- struct bfd_link_hash_entry *h;
- itable = bfd_make_section_with_flags (abfd, ".ex9.itable",
- SEC_CODE | SEC_ALLOC | SEC_LOAD
- | SEC_HAS_CONTENTS | SEC_READONLY
- | SEC_IN_MEMORY | SEC_KEEP);
- if (itable)
- {
- itable->gc_mark = 1;
- itable->alignment_power = 2;
- itable->size = 0x1000;
- itable->contents = bfd_zalloc (abfd, itable->size);
-
- /* Add a symbol in the head of ex9.itable to objdump clearly. */
- h = bfd_link_hash_lookup (link_info.hash, "_EX9_BASE_",
- FALSE, FALSE, FALSE);
- _bfd_generic_link_add_one_symbol
- (&link_info, link_info.output_bfd, "_EX9_BASE_",
- BSF_GLOBAL | BSF_WEAK, itable, 0, (const char *) NULL, FALSE,
- get_elf_backend_data (link_info.output_bfd)->collect, &h);
- }
- }
-#endif
}
/* Check object files if the target is dynamic linked executable
or shared object. */
if (elf_hash_table (&link_info)->dynamic_sections_created
- || bfd_link_pic (&link_info))
+ || bfd_link_pic (&link_info)
+ || bfd_link_pie (&link_info))
{
- for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
- {
- if (!(elf_elfheader (abfd)->e_flags & E_NDS32_HAS_PIC))
- {
- /* Non-PIC object file is used. */
- if (bfd_link_pic (&link_info))
- {
- /* For PIE or shared object, all input must be PIC. */
- einfo (_("%B: must use -fpic to compile this file "
- "for shared object or PIE\n"), abfd);
- }
- else
- {
- /* Dynamic linked executable with SDA and non-PIC.
- Turn off load/store relaxtion. */
- /* TODO: This may support in the future. */
- load_store_relax = 0 ;
- relax_fp_as_gp = 0;
- }
- }
- }
- /* Turn off relax when building shared object or PIE
- until we can support their relaxation. */
+ /* Dynamic linked executable with SDA and non-PIC.
+ Turn off load/store relaxtion. */
+ /* This may support in the future. */
+ load_store_relax = 0 ;
+ relax_fp_as_gp = 0;
}
/* Call the standard elf routine. */
static void
nds32_elf_after_allocation (void)
{
- if (target_optimize & NDS32_RELAX_EX9_ON
- || (ex9_import_file != NULL && update_ex9_table == 1))
- {
- /* Initialize ex9 hash table. */
- if (!nds32_elf_ex9_init ())
- return;
- }
-
/* Call default after allocation callback.
1. This is where relaxation is done.
- 2. It calls gld${EMULATION_NAME}_map_segments to build ELF segment table.
+ 2. It calls ldelf_map_segments to build ELF segment table.
3. Any relaxation requires relax being done must be called after it. */
gld${EMULATION_NAME}_after_allocation ();
}
#define OPTION_REDUCE_FP_UPDATE (OPTION_BASELINE + 4)
#define OPTION_NO_REDUCE_FP_UPDATE (OPTION_BASELINE + 5)
#define OPTION_EXPORT_SYMBOLS (OPTION_BASELINE + 6)
-
-/* These are only available to ex9. */
-#if defined NDS32_EX9_EXT
-#define OPTION_EX9_BASELINE 320
-#define OPTION_EX9_TABLE (OPTION_EX9_BASELINE + 1)
-#define OPTION_NO_EX9_TABLE (OPTION_EX9_BASELINE + 2)
-#define OPTION_EXPORT_EX9 (OPTION_EX9_BASELINE + 3)
-#define OPTION_IMPORT_EX9 (OPTION_EX9_BASELINE + 4)
-#define OPTION_UPDATE_EX9 (OPTION_EX9_BASELINE + 5)
-#define OPTION_EX9_LIMIT (OPTION_EX9_BASELINE + 6)
-#define OPTION_EX9_LOOP (OPTION_EX9_BASELINE + 7)
-#endif
-
-/* These are only available to link-time ifc. */
-#if defined NDS32_IFC_EXT
-#define OPTION_IFC_BASELINE 340
-#define OPTION_JUMP_IFC (OPTION_IFC_BASELINE + 1)
-#define OPTION_NO_JUMP_IFC (OPTION_IFC_BASELINE + 2)
-#define OPTION_IFC_LOOP (OPTION_IFC_BASELINE + 3)
-#endif
+#define OPTION_HYPER_RELAX (OPTION_BASELINE + 7)
+#define OPTION_TLSDESC_TRAMPOLINE (OPTION_BASELINE + 8)
+#define OPTION_NO_TLSDESC_TRAMPOLINE (OPTION_BASELINE + 9)
'
PARSE_AND_LIST_LONGOPTS='
{ "mfp-as-gp", no_argument, NULL, OPTION_FP_AS_GP},
{ "mno-fp-as-gp", no_argument, NULL, OPTION_NO_FP_AS_GP},
{ "mexport-symbols", required_argument, NULL, OPTION_EXPORT_SYMBOLS},
+ { "mhyper-relax", required_argument, NULL, OPTION_HYPER_RELAX},
+ { "mtlsdesc-trampoline", no_argument, NULL, OPTION_TLSDESC_TRAMPOLINE},
+ { "mno-tlsdesc-trampoline", no_argument, NULL, OPTION_NO_TLSDESC_TRAMPOLINE},
/* These are deprecated options. Remove them in the future. */
{ "mrelax-reduce-fp-update", no_argument, NULL, OPTION_REDUCE_FP_UPDATE},
{ "mrelax-no-reduce-fp-update", no_argument, NULL, OPTION_NO_REDUCE_FP_UPDATE},
{ "mrelax-omit-fp", no_argument, NULL, OPTION_FP_AS_GP},
{ "mrelax-no-omit-fp", no_argument, NULL, OPTION_NO_FP_AS_GP},
{ "mgen-symbol-ld-script", required_argument, NULL, OPTION_EXPORT_SYMBOLS},
- /* These are specific optioins for ex9-ext support. */
-#if defined NDS32_EX9_EXT
- { "mex9", no_argument, NULL, OPTION_EX9_TABLE},
- { "mno-ex9", no_argument, NULL, OPTION_NO_EX9_TABLE},
- { "mexport-ex9", required_argument, NULL, OPTION_EXPORT_EX9},
- { "mimport-ex9", required_argument, NULL, OPTION_IMPORT_EX9},
- { "mupdate-ex9", no_argument, NULL, OPTION_UPDATE_EX9},
- { "mex9-limit", required_argument, NULL, OPTION_EX9_LIMIT},
- { "mex9-loop-aware", no_argument, NULL, OPTION_EX9_LOOP},
-#endif
- /* These are specific optioins for ifc-ext support. */
-#if defined NDS32_IFC_EXT
- { "mifc", no_argument, NULL, OPTION_JUMP_IFC},
- { "mno-ifc", no_argument, NULL, OPTION_NO_JUMP_IFC},
- { "mifc-loop-aware", no_argument, NULL, OPTION_IFC_LOOP},
-#endif
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _("\
- --m[no-]fp-as-gp Disable/enable fp-as-gp relaxation\n\
- --mexport-symbols=FILE Exporting symbols in linker script\n\
-"));
-
-#if defined NDS32_EX9_EXT
+ --m[no-]fp-as-gp Disable/enable fp-as-gp relaxation\n"));
fprintf (file, _("\
- --m[no-]ex9 Disable/enable link-time EX9 relaxation\n\
- --mexport-ex9=FILE Export EX9 table after linking\n\
- --mimport-ex9=FILE Import Ex9 table for EX9 relaxation\n\
- --mupdate-ex9 Update existing EX9 table\n\
- --mex9-limit=NUM Maximum number of entries in ex9 table\n\
- --mex9-loop-aware Avoid generate EX9 instruction inside loop\n\
-"));
-#endif
-
-#if defined NDS32_IFC_EXT
+ --mexport-symbols=FILE Exporting symbols in linker script\n"));
+ fprintf (file, _("\
+ --mhyper-relax=level Adjust relax level (low|medium|high). default: medium\n"));
fprintf (file, _("\
- --m[no-]ifc Disable/enable link-time IFC optimization\n\
- --mifc-loop-aware Avoid generate IFC instruction inside loop\n\
-"));
-#endif
+ --m[no-]tlsdesc-trampoline Disable/enable TLS DESC trampoline\n"));
'
PARSE_AND_LIST_ARGS_CASES='
case OPTION_BASELINE:
- einfo ("%P: --mbaseline is not used anymore.\n");
+ einfo (_("%P: --mbaseline is not used anymore\n"));
break;
case OPTION_ELIM_GC_RELOCS:
eliminate_gc_relocs = 1;
break;
case OPTION_REDUCE_FP_UPDATE:
case OPTION_NO_REDUCE_FP_UPDATE:
- einfo ("%P: --relax-[no-]reduce-fp-updat is not used anymore.\n");
+ einfo (_("%P: --relax-[no-]reduce-fp-updat is not used anymore\n"));
break;
case OPTION_EXPORT_SYMBOLS:
if (!optarg)
- einfo (_("Missing file for --mexport-symbols.\n"), optarg);
+ einfo (_("%P: missing file for --mexport-symbols\n"), optarg);
if(strcmp (optarg, "-") == 0)
sym_ld_script = stdout;
{
sym_ld_script = fopen (optarg, FOPEN_WT);
if(sym_ld_script == NULL)
- einfo (_("%P%F: cannot open map file %s: %E.\n"), optarg);
+ einfo (_("%F%P: cannot open map file %s: %E\n"), optarg);
}
break;
-#if defined NDS32_EX9_EXT
- case OPTION_EX9_TABLE:
- target_optimize = target_optimize | NDS32_RELAX_EX9_ON;
- break;
- case OPTION_NO_EX9_TABLE:
- target_optimize = target_optimize & (!NDS32_RELAX_EX9_ON);
- break;
- case OPTION_EXPORT_EX9:
+ case OPTION_HYPER_RELAX:
if (!optarg)
- einfo (_("Missing file for --mexport-ex9=<file>.\n"));
-
- if(strcmp (optarg, "-") == 0)
- ex9_export_file = stdout;
+ einfo (_("%P: valid arguments to --mhyper-relax=(low|medium|high)\n"));
+
+ if (strcmp (optarg, "low") == 0)
+ hyper_relax = 0;
+ else if (strcmp (optarg, "medium") == 0)
+ hyper_relax = 1;
+ else if (strcmp (optarg, "high") == 0)
+ hyper_relax = 2;
else
- {
- ex9_export_file = fopen (optarg, "wb");
- if(ex9_export_file == NULL)
- einfo (_("ERROR %P%F: cannot open ex9 export file %s.\n"), optarg);
- }
- break;
- case OPTION_IMPORT_EX9:
- if (!optarg)
- einfo (_("Missing file for --mimport-ex9=<file>.\n"));
+ einfo (_("%P: valid arguments to --mhyper-relax=(low|medium|high)\n"));
- ex9_import_file = fopen (optarg, "rb+");
- if(ex9_import_file == NULL)
- einfo (_("ERROR %P%F: cannot open ex9 import file %s.\n"), optarg);
- break;
- case OPTION_UPDATE_EX9:
- update_ex9_table = 1;
- break;
- case OPTION_EX9_LIMIT:
- if (optarg)
- {
- ex9_limit = atoi (optarg);
- if (ex9_limit > 511 || ex9_limit < 1)
- {
- einfo (_("ERROR: the range of ex9_limit must between 1 and 511\n"));
- exit (1);
- }
- }
- break;
- case OPTION_EX9_LOOP:
- target_optimize = target_optimize | NDS32_RELAX_EX9_ON;
- ex9_loop_aware = 1;
- break;
-#endif
-#if defined NDS32_IFC_EXT
- case OPTION_JUMP_IFC:
- target_optimize = target_optimize | NDS32_RELAX_JUMP_IFC_ON;
- break;
- case OPTION_NO_JUMP_IFC:
- target_optimize = target_optimize & (!NDS32_RELAX_JUMP_IFC_ON);
break;
- case OPTION_IFC_LOOP:
- target_optimize = target_optimize | NDS32_RELAX_JUMP_IFC_ON;
- ifc_loop_aware = 1;
+ case OPTION_TLSDESC_TRAMPOLINE:
+ tls_desc_trampoline = 1;
break;
-#endif
+ case OPTION_NO_TLSDESC_TRAMPOLINE:
+ tls_desc_trampoline = 0;
+ break;
'
LDEMUL_AFTER_OPEN=nds32_elf_after_open
LDEMUL_AFTER_PARSE=nds32_elf_after_parse
projects / thirdparty / binutils-gdb.git / blobdiff