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-rw-r--r--arm-link.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/arm-link.c b/arm-link.c
index b82eeb4..5d40f84 100644
--- a/arm-link.c
+++ b/arm-link.c
@@ -107,9 +107,9 @@ int gotplt_entry_type (int reloc_type)
}
#ifndef TCC_TARGET_PE
-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;
unsigned plt_offset;
@@ -119,7 +119,7 @@ ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_a
/* empty PLT: create PLT0 entry that push address of call site and
jump to ld.so resolution routine (GOT + 8) */
if (plt->data_offset == 0) {
- p = section_ptr_add(S, plt, 20);
+ p = section_ptr_add(plt, 20);
write32le(p, 0xe52de004); /* push {lr} */
write32le(p+4, 0xe59fe004); /* ldr lr, [pc, #4] */
write32le(p+8, 0xe08fe00e); /* add lr, pc, lr */
@@ -129,11 +129,11 @@ ST_FUNC unsigned create_plt_entry(TCCState *S, unsigned got_offset, struct sym_a
plt_offset = plt->data_offset;
if (attr->plt_thumb_stub) {
- p = section_ptr_add(S, plt, 4);
+ p = section_ptr_add(plt, 4);
write32le(p, 0x4778); /* bx pc */
write32le(p+2, 0x46c0); /* nop */
}
- p = section_ptr_add(S, plt, 16);
+ p = section_ptr_add(plt, 16);
/* save GOT offset for relocate_plt */
write32le(p + 4, got_offset);
return plt_offset;
@@ -141,22 +141,22 @@ 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 (p < p_end) {
- int x = S->got->sh_addr - S->plt->sh_addr - 12;
- write32le(S->plt->data + 16, x - 4);
+ int x = s1->got->sh_addr - s1->plt->sh_addr - 12;
+ write32le(s1->plt->data + 16, x - 4);
p += 20;
while (p < p_end) {
- unsigned off = x + read32le(p + 4) + (S->plt->data - p) + 4;
+ unsigned off = x + read32le(p + 4) + (s1->plt->data - p) + 4;
if (read32le(p) == 0x46c04778) /* PLT Thumb stub present */
p += 4;
write32le(p, 0xe28fc200 | ((off >> 28) & 0xf)); // add ip, pc, #0xN0000000
@@ -167,17 +167,17 @@ ST_FUNC void relocate_plt(TCCState *S)
}
}
- if (S->plt->reloc) {
+ if (s1->plt->reloc) {
ElfW_Rel *rel;
- p = S->got->data;
- for_each_elem(S->plt->reloc, 0, rel, ElfW_Rel) {
- write32le(p + rel->r_offset, S->plt->sh_addr);
+ p = s1->got->data;
+ for_each_elem(s1->plt->reloc, 0, rel, ElfW_Rel) {
+ write32le(p + rel->r_offset, s1->plt->sh_addr);
}
}
}
#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)
{
ElfW(Sym) *sym;
int sym_index, esym_index;
@@ -212,7 +212,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
h = x & 2;
th_ko = (x & 3) && (!blx_avail || !is_call);
if (th_ko || x >= 0x2000000 || x < -0x2000000)
- tcc_error(S, "can't relocate value at %x,%d",addr, type);
+ tcc_error("can't relocate value at %x,%d",addr, type);
x >>= 2;
x &= 0xffffff;
/* Only reached if blx is avail and it is a call */
@@ -255,7 +255,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
/* Relocation infos */
to_thumb = val & 1;
- plt = S->plt;
+ plt = s1->plt;
to_plt = (val >= plt->sh_addr) &&
(val < plt->sh_addr + plt->data_offset);
is_call = (type == R_ARM_THM_PC22);
@@ -267,10 +267,10 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
Section *text;
name = (char *) symtab_section->link->data + sym->st_name;
- text = S->sections[sym->st_shndx];
+ text = s1->sections[sym->st_shndx];
/* Modify reloc to target a thumb stub to switch to ARM */
snprintf(buf, sizeof(buf), "%s_from_thumb", name);
- index = put_elf_sym(S, symtab_section,
+ index = put_elf_sym(symtab_section,
text->data_offset + 1,
sym->st_size, sym->st_info, 0,
sym->st_shndx, buf);
@@ -281,7 +281,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
put_elf_reloc(symtab_section, text,
text->data_offset + 4, R_ARM_JUMP24,
sym_index);
- p = section_ptr_add(S, text, 8);
+ p = section_ptr_add(text, 8);
write32le(p, 0x4778); /* bx pc */
write32le(p+2, 0x46c0); /* nop */
write32le(p+4, 0xeafffffe); /* b $sym */
@@ -301,7 +301,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
- instruction must be a call (bl) or a jump to PLT */
if (!to_thumb || x >= 0x1000000 || x < -0x1000000)
if (to_thumb || (val & 2) || (!is_call && !to_plt))
- tcc_error(S, "can't relocate value at %x,%d",addr, type);
+ tcc_error("can't relocate value at %x,%d",addr, type);
/* Compute and store final offset */
s = (x >> 24) & 1;
@@ -372,14 +372,14 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
x = (x * 2) / 2;
x += val - addr;
if((x^(x>>1))&0x40000000)
- tcc_error(S, "can't relocate value at %x,%d",addr, type);
+ tcc_error("can't relocate value at %x,%d",addr, type);
(*(int *)ptr) |= x & 0x7fffffff;
}
return;
case R_ARM_ABS32:
case R_ARM_TARGET1:
- 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_ARM_ABS32);
@@ -396,19 +396,19 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
*(int *)ptr += val - addr;
return;
case R_ARM_GOTPC:
- *(int *)ptr += S->got->sh_addr - addr;
+ *(int *)ptr += s1->got->sh_addr - addr;
return;
case R_ARM_GOTOFF:
- *(int *)ptr += val - S->got->sh_addr;
+ *(int *)ptr += val - s1->got->sh_addr;
return;
case R_ARM_GOT32:
/* we load the got offset */
- *(int *)ptr += get_sym_attr(S, sym_index, 0)->got_offset;
+ *(int *)ptr += get_sym_attr(s1, sym_index, 0)->got_offset;
return;
case R_ARM_GOT_PREL:
/* we load the pc relative got offset */
- *(int *)ptr += S->got->sh_addr +
- get_sym_attr(S, sym_index, 0)->got_offset -
+ *(int *)ptr += s1->got->sh_addr +
+ get_sym_attr(s1, sym_index, 0)->got_offset -
addr;
return;
case R_ARM_COPY:
@@ -428,7 +428,7 @@ void relocate(TCCState *S, ElfW_Rel *rel, int type, unsigned char *ptr, addr_t a
return;
case R_ARM_RELATIVE:
#ifdef TCC_TARGET_PE
- add32le(ptr, val - S->pe_imagebase);
+ add32le(ptr, val - s1->pe_imagebase);
#endif
/* do nothing */
return;
generated by cgit v1.2.3 (git 2.44.0) at 2024-05-05 05:41:40 +0000