diff options
author | Alan Modra <amodra@gmail.com> | 2003-02-04 12:49:57 +0000 |
---|---|---|
committer | Alan Modra <amodra@gmail.com> | 2003-02-04 12:49:57 +0000 |
commit | 5cab59f6227cb9ef3e5ed2a5bf9df5d3836645b2 (patch) | |
tree | 1187ef2086919d41d343a00b4730c265baf49440 /bfd/elf-bfd.h | |
parent | 68bfbfcc5aa8bda806bef9edf274059d6ad571fc (diff) | |
download | gdb-5cab59f6227cb9ef3e5ed2a5bf9df5d3836645b2.zip gdb-5cab59f6227cb9ef3e5ed2a5bf9df5d3836645b2.tar.gz gdb-5cab59f6227cb9ef3e5ed2a5bf9df5d3836645b2.tar.bz2 |
* elf-bfd.h (struct got_entry, struct plt_entry): Forward declare.
(struct elf_link_hash_entry): Add "glist" and "plist" fields to
"got" union, and declare as gotplt_union. Use gotplt_uinion for
"plt" field.
(struct elf_link_hash_table): Make "init_refcount" a gotplt_union.
Add "init_offset" field.
(struct elf_obj_tdata <local_got>): Add "struct got_entry **" to union.
(elf_local_got_ents): Declare.
* elf.c (_bfd_elf_link_hash_newfunc): Adjust initialization of "got"
and "plt".
(_bfd_elf_link_hash_hide_symbol): Use "init_offset".
(_bfd_elf_link_hash_table_init): Set "init_offset".
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): Set init_refcount
from init_offset.
(elf_adjust_dynamic_symbol): Set plt and got offsets using init_offset.
* elf.c (bfd_elf_local_sym_name): Split out from..
(group_signature): ..here.
* elf-bfd.h (bfd_elf_local_sym_name): Declare.
Diffstat (limited to 'bfd/elf-bfd.h')
-rw-r--r-- | bfd/elf-bfd.h | 48 |
1 files changed, 27 insertions, 21 deletions
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 8c401b5..2e5587c 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -80,6 +80,8 @@ typedef struct } elf_symbol_type; struct elf_strtab_hash; +struct got_entry; +struct plt_entry; /* ELF linker hash table entries. */ @@ -146,23 +148,23 @@ struct elf_link_hash_entry /* If this symbol requires an entry in the global offset table, the processor specific backend uses this field to track usage and - final offset. We use a union and two names primarily to document - the intent of any particular piece of code. The field should be - used as a count until size_dynamic_sections, at which point the - contents of the .got is fixed. Afterward, if this field is -1, - then the symbol does not require a global offset table entry. */ - union + final offset. Two schemes are supported: The first assumes that + a symbol may only have one GOT entry, and uses REFCOUNT until + size_dynamic_sections, at which point the contents of the .got is + fixed. Afterward, if OFFSET is -1, then the symbol does not + require a global offset table entry. The second scheme allows + multiple GOT entries per symbol, managed via a linked list + pointed to by GLIST. */ + union gotplt_union { bfd_signed_vma refcount; bfd_vma offset; + struct got_entry *glist; + struct plt_entry *plist; } got; /* Same, but tracks a procedure linkage table entry. */ - union - { - bfd_signed_vma refcount; - bfd_vma offset; - } plt; + union gotplt_union plt; /* Symbol size. */ bfd_size_type size; @@ -323,9 +325,13 @@ struct elf_link_hash_table /* The value to use when initialising got.refcount/offset and plt.refcount/offset in an elf_link_hash_entry. Set to zero when - the values are refcounts. Set to -1 in size_dynamic_sections - when the values may be offsets. */ - bfd_signed_vma init_refcount; + the values are refcounts. Set to init_offset in + size_dynamic_sections when the values may be offsets. */ + union gotplt_union init_refcount; + + /* The value to use for got.refcount/offset and plt.refcount/offset + when the values may be offsets. Normally (bfd_vma) -1. */ + union gotplt_union init_offset; /* The number of symbols found in the link which must be put into the .dynsym section. */ @@ -1099,17 +1105,14 @@ struct elf_obj_tdata minus the sh_info field of the symbol table header. */ struct elf_link_hash_entry **sym_hashes; - /* A mapping from local symbols to offsets into the global offset - table, used when linking. This is indexed by the symbol index. - Like for the globals, we use a union and two names primarily to - document the intent of any particular piece of code. The field - should be used as a count until size_dynamic_sections, at which - point the contents of the .got is fixed. Afterward, if an entry - is -1, then the symbol does not require a global offset table entry. */ + /* Track usage and final offsets of GOT entries for local symbols. + This array is indexed by symbol index. Elements are used + identically to "got" in struct elf_link_hash_entry. */ union { bfd_signed_vma *refcounts; bfd_vma *offsets; + struct got_entry **ents; } local_got; /* A mapping from local symbols to offsets into the various linker @@ -1216,6 +1219,7 @@ struct elf_obj_tdata #define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes) #define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts) #define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets) +#define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents) #define elf_local_ptr_offsets(bfd) (elf_tdata(bfd) -> linker_section_pointers) #define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name) #define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname) @@ -1253,6 +1257,8 @@ extern char *bfd_elf_get_str_section extern Elf_Internal_Sym *bfd_elf_get_elf_syms PARAMS ((bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, PTR, Elf_External_Sym_Shndx *)); +extern const char *bfd_elf_local_sym_name + PARAMS ((bfd *, Elf_Internal_Sym *)); extern bfd_boolean _bfd_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |