summaryrefslogtreecommitdiff
path: root/i386-link.c
diff options
context:
space:
mode:
Diffstat (limited to 'i386-link.c')
-rw-r--r--i386-link.c68
1 files changed, 34 insertions, 34 deletions
diff --git a/i386-link.c b/i386-link.c
index 5df3ea6..a7969f0 100644
--- a/i386-link.c
+++ b/i386-link.c
@@ -91,15 +91,15 @@ int gotplt_entry_type (int reloc_type)
return -1;
}
-ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_attr *attr)
+ST_FUNC unsigned create_plt_entry(TCCState *s1, unsigned got_offset, struct sym_attr *attr)
{
- Section *plt = S->plt;
+ Section *plt = s1->plt;
uint8_t *p;
int modrm;
unsigned plt_offset, relofs;
/* on i386 if we build a DLL, we add a %ebx offset */
- if (S->output_type == TCC_OUTPUT_DLL)
+ if (s1->output_type == TCC_OUTPUT_DLL)
modrm = 0xa3;
else
modrm = 0x25;
@@ -108,7 +108,7 @@ ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_a
(GOT + PTR_SIZE) and jumps to ld.so resolution routine
(GOT + 2 * PTR_SIZE) */
if (plt->data_offset == 0) {
- p = section_ptr_add(S, plt, 16);
+ p = section_ptr_add(plt, 16);
p[0] = 0xff; /* pushl got + PTR_SIZE */
p[1] = modrm + 0x10;
write32le(p + 2, PTR_SIZE);
@@ -121,10 +121,10 @@ ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_a
/* The PLT slot refers to the relocation entry it needs via offset.
The reloc entry is created below, so its offset is the current
data_offset */
- relofs = S->plt->reloc ? S->plt->reloc->data_offset : 0;
+ relofs = s1->plt->reloc ? s1->plt->reloc->data_offset : 0;
/* Jump to GOT entry where ld.so initially put the address of ip + 4 */
- p = section_ptr_add(S, plt, 16);
+ p = section_ptr_add(plt, 16);
p[0] = 0xff; /* jmp *(got + x) */
p[1] = modrm;
write32le(p + 2, got_offset);
@@ -137,31 +137,31 @@ ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_a
/* relocate the PLT: compute addresses and offsets in the PLT now that final
address for PLT and GOT are known (see fill_program_header) */
-ST_FUNC void relocate_plt(TCCState *S)
+ST_FUNC void relocate_plt(TCCState *s1)
{
uint8_t *p, *p_end;
- if (!S->plt)
+ if (!s1->plt)
return;
- p = S->plt->data;
- p_end = p + S->plt->data_offset;
+ p = s1->plt->data;
+ p_end = p + s1->plt->data_offset;
- if (S->output_type != TCC_OUTPUT_DLL && p < p_end) {
- add32le(p + 2, S->got->sh_addr);
- add32le(p + 8, S->got->sh_addr);
+ if (s1->output_type != TCC_OUTPUT_DLL && p < p_end) {
+ add32le(p + 2, s1->got->sh_addr);
+ add32le(p + 8, s1->got->sh_addr);
p += 16;
while (p < p_end) {
- add32le(p + 2, S->got->sh_addr);
+ add32le(p + 2, s1->got->sh_addr);
p += 16;
}
}
- if (S->plt->reloc) {
+ if (s1->plt->reloc) {
ElfW_Rel *rel;
- int x = S->plt->sh_addr + 16 + 6;
- p = S->got->data;
- for_each_elem(S->plt->reloc, 0, rel, ElfW_Rel) {
+ int x = s1->plt->sh_addr + 16 + 6;
+ p = s1->got->data;
+ for_each_elem(s1->plt->reloc, 0, rel, ElfW_Rel) {
write32le(p + rel->r_offset, x);
x += 16;
}
@@ -169,7 +169,7 @@ ST_FUNC void relocate_plt(TCCState *S)
}
#endif
-void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val)
+void relocate(TCCState *s1, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t addr, addr_t val)
{
int sym_index, esym_index;
@@ -177,8 +177,8 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
switch (type) {
case R_386_32:
- if (S->output_type == TCC_OUTPUT_DLL) {
- esym_index = get_sym_attr(S, sym_index, 0)->dyn_index;
+ if (s1->output_type == TCC_OUTPUT_DLL) {
+ esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
qrel->r_offset = rel->r_offset;
if (esym_index) {
qrel->r_info = ELFW(R_INFO)(esym_index, R_386_32);
@@ -192,9 +192,9 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
add32le(ptr, val);
return;
case R_386_PC32:
- if (S->output_type == TCC_OUTPUT_DLL) {
+ if (s1->output_type == TCC_OUTPUT_DLL) {
/* DLL relocation */
- esym_index = get_sym_attr(S, sym_index, 0)->dyn_index;
+ esym_index = get_sym_attr(s1, sym_index, 0)->dyn_index;
if (esym_index) {
qrel->r_offset = rel->r_offset;
qrel->r_info = ELFW(R_INFO)(esym_index, R_386_PC32);
@@ -212,31 +212,31 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
write32le(ptr, val);
return;
case R_386_GOTPC:
- add32le(ptr, S->got->sh_addr - addr);
+ add32le(ptr, s1->got->sh_addr - addr);
return;
case R_386_GOTOFF:
- add32le(ptr, val - S->got->sh_addr);
+ add32le(ptr, val - s1->got->sh_addr);
return;
case R_386_GOT32:
case R_386_GOT32X:
/* we load the got offset */
- add32le(ptr, get_sym_attr(S, sym_index, 0)->got_offset);
+ add32le(ptr, get_sym_attr(s1, sym_index, 0)->got_offset);
return;
case R_386_16:
- if (S->output_format != TCC_OUTPUT_FORMAT_BINARY) {
+ if (s1->output_format != TCC_OUTPUT_FORMAT_BINARY) {
output_file:
- tcc_error(S, "can only produce 16-bit binary files");
+ tcc_error("can only produce 16-bit binary files");
}
write16le(ptr, read16le(ptr) + val);
return;
case R_386_PC16:
- if (S->output_format != TCC_OUTPUT_FORMAT_BINARY)
+ if (s1->output_format != TCC_OUTPUT_FORMAT_BINARY)
goto output_file;
write16le(ptr, read16le(ptr) + val - addr);
return;
case R_386_RELATIVE:
#ifdef TCC_TARGET_PE
- add32le(ptr, val - S->pe_imagebase);
+ add32le(ptr, val - s1->pe_imagebase);
#endif
/* do nothing */
return;
@@ -267,12 +267,12 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
memcpy(ptr-3, replace, sizeof(replace));
rel[1].r_info = ELFW(R_INFO)(0, R_386_NONE);
sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
- sec = S->sections[sym->st_shndx];
+ sec = s1->sections[sym->st_shndx];
x = sym->st_value - sec->sh_addr - sec->data_offset;
add32le(ptr + 5, -x);
}
else
- tcc_error(S, "unexpected R_386_TLS_GD pattern");
+ tcc_error("unexpected R_386_TLS_GD pattern");
}
return;
case R_386_TLS_LDM:
@@ -295,7 +295,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
rel[1].r_info = ELFW(R_INFO)(0, R_386_NONE);
}
else
- tcc_error(S, "unexpected R_386_TLS_LDM pattern");
+ tcc_error("unexpected R_386_TLS_LDM pattern");
}
return;
case R_386_TLS_LDO_32:
@@ -306,7 +306,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
int32_t x;
sym = &((ElfW(Sym) *)symtab_section->data)[sym_index];
- sec = S->sections[sym->st_shndx];
+ sec = s1->sections[sym->st_shndx];
x = val - sec->sh_addr - sec->data_offset;
add32le(ptr, x);
}
generated by cgit v1.2.3 (git 2.44.0) at 2024-05-04 20:50:18 +0000