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x86-64: Define symbol constant for new relocs

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Whoops, we have our own <elf.h> copy, so I can just as well add
the symbol defines for the relocs instead of hard-coding numbers
in tccelf.c.
This commit is contained in:
Michael Matz 2015-12-17 07:30:35 +01:00
parent c4d0498b3a
commit e264243adc
2 changed files with 13 additions and 7 deletions
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4
elf.h
View File

@ -2895,6 +2895,10 @@ typedef Elf32_Addr Elf32_Conflict;
#define R_X86_64_TLSDESC 36 /* TLS descriptor. */ #define R_X86_64_TLSDESC 36 /* TLS descriptor. */
#define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */ #define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */
#define R_X86_64_RELATIVE64 38 /* 64-bit adjust by program base */ #define R_X86_64_RELATIVE64 38 /* 64-bit adjust by program base */
#define R_X86_64_GOTPCRELX 41 /* like GOTPCREL, but optionally with
linker optimizations */
#define R_X86_64_REX_GOTPCRELX 42 /* like GOTPCRELX, but a REX prefix
is present */
#define R_X86_64_NUM 39 #define R_X86_64_NUM 39

16
tccelf.c
View File

@ -941,8 +941,8 @@ ST_FUNC void relocate_section(TCCState *s1, Section *s)
write64le(ptr, val - rel->r_addend); write64le(ptr, val - rel->r_addend);
break; break;
case R_X86_64_GOTPCREL: case R_X86_64_GOTPCREL:
case 41 /* R_X86_64_GOTPCRELX */: case R_X86_64_GOTPCRELX:
case 42 /* R_X86_64_REX_GOTPCRELX */: case R_X86_64_REX_GOTPCRELX:
write32le(ptr, read32le(ptr) + write32le(ptr, read32le(ptr) +
(s1->got->sh_addr - addr + (s1->got->sh_addr - addr +
s1->sym_attrs[sym_index].got_offset - 4)); s1->sym_attrs[sym_index].got_offset - 4));
@ -1424,8 +1424,8 @@ ST_FUNC void build_got_entries(TCCState *s1)
case R_X86_64_GOT32: case R_X86_64_GOT32:
case R_X86_64_GOTTPOFF: case R_X86_64_GOTTPOFF:
case R_X86_64_GOTPCREL: case R_X86_64_GOTPCREL:
case 41 /* R_X86_64_GOTPCRELX */: case R_X86_64_GOTPCRELX:
case 42 /* R_X86_64_REX_GOTPCRELX */: case R_X86_64_REX_GOTPCRELX:
case R_X86_64_PLT32: case R_X86_64_PLT32:
sym_index = ELFW(R_SYM)(rel->r_info); sym_index = ELFW(R_SYM)(rel->r_info);
sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
@ -1441,7 +1441,9 @@ ST_FUNC void build_got_entries(TCCState *s1)
sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
} }
if (type == R_X86_64_GOT32 || type == R_X86_64_GOTPCREL || if (type == R_X86_64_GOT32 || type == R_X86_64_GOTPCREL ||
type == R_X86_64_PLT32 || type == 41 || type == 42) { type == R_X86_64_GOTPCRELX ||
type == R_X86_64_REX_GOTPCRELX ||
type == R_X86_64_PLT32) {
unsigned long ofs; unsigned long ofs;
/* look at the symbol got offset. If none, then add one */ /* look at the symbol got offset. If none, then add one */
if (type == R_X86_64_PLT32) if (type == R_X86_64_PLT32)
@ -1773,8 +1775,8 @@ ST_FUNC void fill_got(TCCState *s1)
switch (ELFW(R_TYPE) (rel->r_info)) { switch (ELFW(R_TYPE) (rel->r_info)) {
case R_X86_64_GOT32: case R_X86_64_GOT32:
case R_X86_64_GOTPCREL: case R_X86_64_GOTPCREL:
case 41 /* R_X86_64_GOTPCRELX */: case R_X86_64_GOTPCRELX:
case 42 /* R_X86_64_REX_GOTPCRELX */: case R_X86_64_REX_GOTPCRELX:
case R_X86_64_PLT32: case R_X86_64_PLT32:
fill_got_entry(s1, rel); fill_got_entry(s1, rel);
break; break;