--- /dev/null
+/* QNX specific support for 32-bit ELF
+ Copyright 2002 Free Software Foundation, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "elf-bfd.h"
+#include "elf32-qnx.h"
+
+/* Returns the end address of the segment + 1. */
+#define SEGMENT_END(segment, start) \
+ (start + (segment->p_memsz > segment->p_filesz \
+ ? segment->p_memsz : segment->p_filesz))
+
+boolean
+elf_qnx_copy_private_bfd_data_p (ibfd, isec, obfd, osec)
+ bfd *ibfd ATTRIBUTE_UNUSED;
+ asection *isec;
+ bfd *obfd ATTRIBUTE_UNUSED;
+ asection *osec ATTRIBUTE_UNUSED;
+{
+ return isec->next == NULL;
+}
+
+boolean
+elf_qnx_is_contained_by_filepos (section, segment)
+ asection *section;
+ Elf_Internal_Phdr *segment;
+{
+ return ((bfd_vma) section->filepos >= segment->p_offset
+ && ((bfd_vma) section->filepos + section->_raw_size
+ <= SEGMENT_END (segment, segment->p_offset)));
+}
+
+void
+elf_qnx_set_nonloadable_filepos (abfd, phdrs)
+ bfd *abfd;
+ Elf_Internal_Phdr *phdrs;
+{
+ struct elf_segment_map *m;
+ Elf_Internal_Phdr *p;
+ file_ptr off = 0;
+
+ for (m = elf_tdata (abfd)->segment_map, p = phdrs;
+ m != NULL;
+ m = m->next, p++)
+ {
+ unsigned int i;
+ asection **secpp;
+
+ for (i = 0, secpp = m->sections; i < m->count; i++, secpp++)
+ {
+ asection *sec;
+
+ sec = *secpp;
+
+ if (p->p_type == PT_LOAD)
+ off = sec->filepos;
+ else
+ {
+ if (i == 0)
+ {
+ if (sec->filepos)
+ p->p_offset = sec->filepos;
+ else
+ p->p_offset = off;
+ }
+ if (!sec->filepos)
+ {
+ off += sec->_raw_size;
+ p->p_filesz += sec->_raw_size;
+ }
+ }
+ }
+ }
+ return;
+}
--- /dev/null
+/* simple.c -- BFD simple client routines
+ Copyright 2002
+ Free Software Foundation, Inc.
+ Contributed by MontaVista Software, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+
+static boolean simple_dummy_warning
+ PARAMS ((struct bfd_link_info *, const char *, const char *, bfd *,
+ asection *, bfd_vma));
+
+static boolean simple_dummy_undefined_symbol
+ PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *,
+ bfd_vma, boolean));
+
+static boolean simple_dummy_reloc_overflow
+ PARAMS ((struct bfd_link_info *, const char *, const char *, bfd_vma,
+ bfd *, asection *, bfd_vma));
+
+static boolean simple_dummy_reloc_dangerous
+ PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma));
+
+static boolean simple_dummy_unattached_reloc
+ PARAMS ((struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma));
+
+bfd_byte * bfd_simple_get_relocated_section_contents
+ PARAMS ((bfd *, asection *, bfd_byte *));
+
+static boolean
+simple_dummy_warning (link_info, warning, symbol, abfd, section, address)
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+ const char *warning ATTRIBUTE_UNUSED;
+ const char *symbol ATTRIBUTE_UNUSED;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section ATTRIBUTE_UNUSED;
+ bfd_vma address ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+static boolean
+simple_dummy_undefined_symbol (link_info, name, abfd, section, address, fatal)
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section ATTRIBUTE_UNUSED;
+ bfd_vma address ATTRIBUTE_UNUSED;
+ boolean fatal ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+static boolean
+simple_dummy_reloc_overflow (link_info, name, reloc_name, addend, abfd,
+ section, address)
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
+ const char *reloc_name ATTRIBUTE_UNUSED;
+ bfd_vma addend ATTRIBUTE_UNUSED;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section ATTRIBUTE_UNUSED;
+ bfd_vma address ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+static boolean
+simple_dummy_reloc_dangerous (link_info, message, abfd, section, address)
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+ const char *message ATTRIBUTE_UNUSED;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section ATTRIBUTE_UNUSED;
+ bfd_vma address ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+static boolean
+simple_dummy_unattached_reloc (link_info, name, abfd, section, address)
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section ATTRIBUTE_UNUSED;
+ bfd_vma address ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+/*
+FUNCTION
+ bfd_simple_relocate_secton
+
+SYNOPSIS
+ bfd_byte *bfd_simple_get_relocated_section_contents (bfd *abfd, asection *sec, bfd_byte *outbuf);
+
+DESCRIPTION
+ Returns the relocated contents of section @var{sec}. Only symbols
+ from @var{abfd} and the output offsets assigned to sections in
+ @var{abfd} are used. The result will be stored at @var{outbuf}
+ or allocated with @code{bfd_malloc} if @var{outbuf} is @code{NULL}.
+
+ Generally all sections in @var{abfd} should have their
+ @code{output_section} pointing back to the original section.
+
+ Returns @code{NULL} on a fatal error; ignores errors applying
+ particular relocations.
+*/
+
+bfd_byte *
+bfd_simple_get_relocated_section_contents (abfd, sec, outbuf)
+ bfd *abfd;
+ asection *sec;
+ bfd_byte *outbuf;
+{
+ struct bfd_link_info link_info;
+ struct bfd_link_order link_order;
+ struct bfd_link_callbacks callbacks;
+ bfd_byte *contents, *data;
+ int storage_needed, number_of_symbols;
+ asymbol **symbol_table;
+
+ /* In order to use bfd_get_relocated_section_contents, we need
+ to forge some data structures that it expects. */
+
+ /* Fill in the bare minimum number of fields for our purposes. */
+ memset (&link_info, 0, sizeof (link_info));
+ link_info.input_bfds = abfd;
+
+ link_info.hash = bfd_link_hash_table_create (abfd);
+ link_info.callbacks = &callbacks;
+ callbacks.warning = simple_dummy_warning;
+ callbacks.undefined_symbol = simple_dummy_undefined_symbol;
+ callbacks.reloc_overflow = simple_dummy_reloc_overflow;
+ callbacks.reloc_dangerous = simple_dummy_reloc_dangerous;
+ callbacks.unattached_reloc = simple_dummy_unattached_reloc;
+
+ memset (&link_order, 0, sizeof (link_order));
+ link_order.next = NULL;
+ link_order.type = bfd_indirect_link_order;
+ link_order.offset = 0;
+ link_order.size = bfd_section_size (abfd, sec);
+ link_order.u.indirect.section = sec;
+
+ data = NULL;
+ if (outbuf == NULL)
+ {
+ data = bfd_malloc (bfd_section_size (abfd, sec));
+ if (data == NULL)
+ return NULL;
+ outbuf = data;
+ }
+ bfd_link_add_symbols (abfd, &link_info);
+
+ storage_needed = bfd_get_symtab_upper_bound (abfd);
+ symbol_table = (asymbol **) bfd_malloc (storage_needed);
+ number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
+
+ contents = bfd_get_relocated_section_contents (abfd,
+ &link_info,
+ &link_order,
+ outbuf,
+ 0,
+ symbol_table);
+ if (contents == NULL && data != NULL)
+ free (data);
+
+ /* Foul hack to prevent bfd_section_size aborts. This flag only controls
+ that macro (and the related size macros), selecting between _raw_size
+ and _cooked_size. Debug sections won't change size while we're only
+ relocating. There may be trouble here someday if it tries to run
+ relaxation unexpectedly, so make sure. */
+ BFD_ASSERT (sec->_raw_size == sec->_cooked_size);
+ sec->reloc_done = 0;
+
+ bfd_link_hash_table_free (abfd, link_info.hash);
+
+ return contents;
+}
--- /dev/null
+/* Target-dependent code for OpenBSD/i386.
+ Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002
+ Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include "defs.h"
+#include "arch-utils.h"
+#include "gdbcore.h"
+#include "regcache.h"
+
+#include "i386-tdep.h"
+#include "i387-tdep.h"
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_i386obsd_tdep (void);
+
+#define SIZEOF_STRUCT_REG (16 * 4)
+
+static void
+i386obsd_supply_reg (char *regs, int regno)
+{
+ int i;
+
+ for (i = 0; i <= 15; i++)
+ if (regno == i || regno == -1)
+ supply_register (i, regs + i * 4);
+}
+
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
+ CORE_ADDR ignore)
+{
+ char *regs, *fsave;
+
+ /* We get everything from one section. */
+ if (which != 0)
+ return;
+
+ if (core_reg_size < (SIZEOF_STRUCT_REG + 108))
+ {
+ warning ("Wrong size register set in core file.");
+ return;
+ }
+
+ regs = core_reg_sect;
+ fsave = core_reg_sect + SIZEOF_STRUCT_REG;
+
+ /* Integer registers. */
+ i386obsd_supply_reg (regs, -1);
+
+ /* Floating point registers. */
+ i387_supply_fsave (fsave);
+}
+
+static struct core_fns i386obsd_core_fns =
+{
+ bfd_target_unknown_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ NULL /* next */
+};
+\f
+
+CORE_ADDR i386obsd_sigtramp_start = 0xbfbfdf20;
+CORE_ADDR i386obsd_sigtramp_end = 0xbfbfdff0;
+
+/* From <machine/signal.h>. */
+int i386obsd_sc_pc_offset = 44;
+int i386obsd_sc_sp_offset = 56;
+
+static void
+i386obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+ /* Obviously OpenBSD is BSD-based. */
+ i386bsd_init_abi (info, gdbarch);
+
+ /* OpenBSD uses -freg-struct-return by default. */
+ tdep->struct_return = reg_struct_return;
+
+ /* OpenBSD uses a different memory layout. */
+ tdep->sigtramp_start = i386obsd_sigtramp_start;
+ tdep->sigtramp_end = i386obsd_sigtramp_end;
+
+ /* OpenBSD has a `struct sigcontext' that's different from the
+ origional 4.3 BSD. */
+ tdep->sc_pc_offset = i386obsd_sc_pc_offset;
+ tdep->sc_sp_offset = i386obsd_sc_sp_offset;
+}
+
+void
+_initialize_i386obsd_tdep (void)
+{
+ add_core_fns (&i386obsd_core_fns);
+
+ /* FIXME: kettenis/20021020: Since OpenBSD/i386 binaries are
+ indistingushable from NetBSD/i386 a.out binaries, building a GDB
+ that should support both these targets will probably not work as
+ expected. */
+#define GDB_OSABI_OPENBSD_AOUT GDB_OSABI_NETBSD_AOUT
+
+ gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_OPENBSD_AOUT,
+ i386obsd_init_abi);
+}
projects / thirdparty / binutils-gdb.git / commitdiff
