static void elf_i386_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
static boolean elf_i386_is_local_label_name PARAMS ((bfd *, const char *));
-static struct bfd_hash_entry *elf_i386_link_hash_newfunc
+static boolean elf_i386_grok_prstatus
+ PARAMS ((bfd *abfd, Elf_Internal_Note *note));
+static boolean elf_i386_grok_psinfo
+ PARAMS ((bfd *abfd, Elf_Internal_Note *note));
+static struct bfd_hash_entry *link_hash_newfunc
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
static struct bfd_link_hash_table *elf_i386_link_hash_table_create
PARAMS ((bfd *));
PARAMS ((struct elf_link_hash_entry *, PTR));
static boolean readonly_dynrelocs
PARAMS ((struct elf_link_hash_entry *, PTR));
+static boolean elf_i386_fake_sections
+ PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
static boolean elf_i386_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf_i386_relocate_section
static boolean elf_i386_finish_dynamic_symbol
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
Elf_Internal_Sym *));
-static boolean elf_i386_finish_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean elf_i386_fake_sections
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
static enum elf_reloc_type_class elf_i386_reloc_type_class
PARAMS ((const Elf_Internal_Rela *));
-static boolean elf_i386_grok_prstatus
- PARAMS ((bfd *abfd, Elf_Internal_Note *note));
-static boolean elf_i386_grok_psinfo
- PARAMS ((bfd *abfd, Elf_Internal_Note *note));
+static boolean elf_i386_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
#define USE_REL 1 /* 386 uses REL relocations instead of RELA */
return _bfd_elf_is_local_label_name (abfd, name);
}
\f
-/* Functions for the i386 ELF linker. */
+/* Support for core dump NOTE sections. */
+static boolean
+elf_i386_grok_prstatus (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+{
+ int offset;
+ size_t raw_size;
+
+ switch (note->descsz)
+ {
+ default:
+ return false;
+
+ case 144: /* Linux/i386 */
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+
+ /* pr_pid */
+ elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
+
+ /* pr_reg */
+ offset = 72;
+ raw_size = 68;
+
+ break;
+ }
+
+ /* Make a ".reg/999" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ raw_size, note->descpos + offset);
+}
+
+static boolean
+elf_i386_grok_psinfo (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+{
+ switch (note->descsz)
+ {
+ default:
+ return false;
+
+ case 128: /* Linux/MIPS elf_prpsinfo */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
+
+ /* Note that for some reason, a spurious space is tacked
+ onto the end of the args in some (at least one anyway)
+ implementations, so strip it off if it exists. */
+
+ {
+ char *command = elf_tdata (abfd)->core_command;
+ int n = strlen (command);
+
+ if (0 < n && command[n - 1] == ' ')
+ command[n - 1] = '\0';
+ }
+
+ return true;
+}
+\f
+/* Functions for the i386 ELF linker.
+
+ In order to gain some understanding of code in this file without
+ knowing all the intricate details of the linker, note the
+ following:
+
+ Functions named elf_i386_* are called by external routines, other
+ functions are only called locally. elf_i386_* functions appear
+ in this file more or less in the order in which they are called
+ from external routines. eg. elf_i386_check_relocs is called
+ early in the link process, elf_i386_finish_dynamic_sections is
+ one of the last functions. */
+
/* The name of the dynamic interpreter. This is put in the .interp
section. */
/* Create an entry in an i386 ELF linker hash table. */
static struct bfd_hash_entry *
-elf_i386_link_hash_newfunc (entry, table, string)
+link_hash_newfunc (entry, table, string)
struct bfd_hash_entry *entry;
struct bfd_hash_table *table;
const char *string;
if (ret == (struct elf_i386_link_hash_table *) NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
- elf_i386_link_hash_newfunc))
+ if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, link_hash_newfunc))
{
bfd_release (abfd, ret);
return NULL;
return true;
}
+/* Set the correct type for an x86 ELF section. We do this by the
+ section name, which is a hack, but ought to work. */
+
+static boolean
+elf_i386_fake_sections (abfd, hdr, sec)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ Elf32_Internal_Shdr *hdr;
+ asection *sec;
+{
+ register const char *name;
+
+ name = bfd_get_section_name (abfd, sec);
+
+ /* This is an ugly, but unfortunately necessary hack that is
+ needed when producing EFI binaries on x86. It tells
+ elf.c:elf_fake_sections() not to consider ".reloc" as a section
+ containing ELF relocation info. We need this hack in order to
+ be able to generate ELF binaries that can be translated into
+ EFI applications (which are essentially COFF objects). Those
+ files contain a COFF ".reloc" section inside an ELFNN object,
+ which would normally cause BFD to segfault because it would
+ attempt to interpret this section as containing relocation
+ entries for section "oc". With this hack enabled, ".reloc"
+ will be treated as a normal data section, which will avoid the
+ segfault. However, you won't be able to create an ELFNN binary
+ with a section named "oc" that needs relocations, but that's
+ the kind of ugly side-effects you get when detecting section
+ types based on their names... In practice, this limitation is
+ unlikely to bite. */
+ if (strcmp (name, ".reloc") == 0)
+ hdr->sh_type = SHT_PROGBITS;
+
+ return true;
+}
+
/* Relocate an i386 ELF section. */
static boolean
return true;
}
+/* Used to decide how to sort relocs in an optimal manner for the
+ dynamic linker, before writing them out. */
+
+static enum elf_reloc_type_class
+elf_i386_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_386_RELATIVE:
+ return reloc_class_relative;
+ case R_386_JUMP_SLOT:
+ return reloc_class_plt;
+ case R_386_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
+}
+
/* Finish up the dynamic sections. */
static boolean
return true;
}
-/* Set the correct type for an x86 ELF section. We do this by the
- section name, which is a hack, but ought to work. */
-
-static boolean
-elf_i386_fake_sections (abfd, hdr, sec)
- bfd *abfd ATTRIBUTE_UNUSED;
- Elf32_Internal_Shdr *hdr;
- asection *sec;
-{
- register const char *name;
-
- name = bfd_get_section_name (abfd, sec);
-
- if (strcmp (name, ".reloc") == 0)
- /*
- * This is an ugly, but unfortunately necessary hack that is
- * needed when producing EFI binaries on x86. It tells
- * elf.c:elf_fake_sections() not to consider ".reloc" as a section
- * containing ELF relocation info. We need this hack in order to
- * be able to generate ELF binaries that can be translated into
- * EFI applications (which are essentially COFF objects). Those
- * files contain a COFF ".reloc" section inside an ELFNN object,
- * which would normally cause BFD to segfault because it would
- * attempt to interpret this section as containing relocation
- * entries for section "oc". With this hack enabled, ".reloc"
- * will be treated as a normal data section, which will avoid the
- * segfault. However, you won't be able to create an ELFNN binary
- * with a section named "oc" that needs relocations, but that's
- * the kind of ugly side-effects you get when detecting section
- * types based on their names... In practice, this limitation is
- * unlikely to bite.
- */
- hdr->sh_type = SHT_PROGBITS;
-
- return true;
-}
-
-static enum elf_reloc_type_class
-elf_i386_reloc_type_class (rela)
- const Elf_Internal_Rela *rela;
-{
- switch ((int) ELF32_R_TYPE (rela->r_info))
- {
- case R_386_RELATIVE:
- return reloc_class_relative;
- case R_386_JUMP_SLOT:
- return reloc_class_plt;
- case R_386_COPY:
- return reloc_class_copy;
- default:
- return reloc_class_normal;
- }
-}
-
-/* Support for core dump NOTE sections */
-static boolean
-elf_i386_grok_prstatus (abfd, note)
- bfd *abfd;
- Elf_Internal_Note *note;
-{
- int offset;
- size_t raw_size;
-
- switch (note->descsz)
- {
- default:
- return false;
-
- case 144: /* Linux/i386 */
- /* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
-
- /* pr_pid */
- elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
-
- /* pr_reg */
- offset = 72;
- raw_size = 68;
-
- break;
- }
-
- /* Make a ".reg/999" section. */
- return _bfd_elfcore_make_pseudosection (abfd, ".reg",
- raw_size, note->descpos + offset);
-}
-
-static boolean
-elf_i386_grok_psinfo (abfd, note)
- bfd *abfd;
- Elf_Internal_Note *note;
-{
- switch (note->descsz)
- {
- default:
- return false;
-
- case 128: /* Linux/MIPS elf_prpsinfo */
- elf_tdata (abfd)->core_program
- = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
- elf_tdata (abfd)->core_command
- = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
- }
-
- /* Note that for some reason, a spurious space is tacked
- onto the end of the args in some (at least one anyway)
- implementations, so strip it off if it exists. */
-
- {
- char *command = elf_tdata (abfd)->core_command;
- int n = strlen (command);
-
- if (0 < n && command[n - 1] == ' ')
- command[n - 1] = '\0';
- }
-
- return true;
-}
-
#define TARGET_LITTLE_SYM bfd_elf32_i386_vec
#define TARGET_LITTLE_NAME "elf32-i386"
#define ELF_ARCH bfd_arch_i386
projects / binutils-gdb.git / commitdiff