objtool: Improve reloc naming

- The term "reloc" is overloaded to mean both "an instance of struct
  reloc" and "a reloc section".  Change the latter to "rsec".

- For variable names, use "sec" for regular sections and "rsec" for rela
  sections to prevent them getting mixed up.

- For struct reloc variables, use "reloc" instead of "rel" everywhere
  for consistency.

Link: https://lore.kernel.org/r/8b790e403df46f445c21003e7893b8f53b99a6f3.1685464332.git.jpoimboe@kernel.org
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Josh Poimboeuf 2023-05-30 10:20:55 -07:00
parent 2707579dfa
commit a5bd623653
3 changed files with 151 additions and 149 deletions

View File

@ -494,7 +494,7 @@ static int add_pv_ops(struct objtool_file *file, const char *symname)
{
struct symbol *sym, *func;
unsigned long off, end;
struct reloc *rel;
struct reloc *reloc;
int idx;
sym = find_symbol_by_name(file->elf, symname);
@ -504,19 +504,19 @@ static int add_pv_ops(struct objtool_file *file, const char *symname)
off = sym->offset;
end = off + sym->len;
for (;;) {
rel = find_reloc_by_dest_range(file->elf, sym->sec, off, end - off);
if (!rel)
reloc = find_reloc_by_dest_range(file->elf, sym->sec, off, end - off);
if (!reloc)
break;
func = rel->sym;
func = reloc->sym;
if (func->type == STT_SECTION)
func = find_symbol_by_offset(rel->sym->sec, rel->addend);
func = find_symbol_by_offset(reloc->sym->sec, reloc->addend);
idx = (rel->offset - sym->offset) / sizeof(unsigned long);
idx = (reloc->offset - sym->offset) / sizeof(unsigned long);
objtool_pv_add(file, idx, func);
off = rel->offset + 1;
off = reloc->offset + 1;
if (off > end)
break;
}
@ -581,20 +581,20 @@ static struct instruction *find_last_insn(struct objtool_file *file,
*/
static int add_dead_ends(struct objtool_file *file)
{
struct section *sec;
struct section *rsec;
struct reloc *reloc;
struct instruction *insn;
/*
* Check for manually annotated dead ends.
*/
sec = find_section_by_name(file->elf, ".rela.discard.unreachable");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.unreachable");
if (!rsec)
goto reachable;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
insn = find_insn(file, reloc->sym->sec, reloc->addend);
@ -623,13 +623,13 @@ static int add_dead_ends(struct objtool_file *file)
* GCC doesn't know the "ud2" is fatal, so it generates code as if it's
* not a dead end.
*/
sec = find_section_by_name(file->elf, ".rela.discard.reachable");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.reachable");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
insn = find_insn(file, reloc->sym->sec, reloc->addend);
@ -1044,15 +1044,15 @@ static int create_direct_call_sections(struct objtool_file *file)
static void add_ignores(struct objtool_file *file)
{
struct instruction *insn;
struct section *sec;
struct section *rsec;
struct symbol *func;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.func_stack_frame_non_standard");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.func_stack_frame_non_standard");
if (!rsec)
return;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
switch (reloc->sym->type) {
case STT_FUNC:
func = reloc->sym;
@ -1065,7 +1065,8 @@ static void add_ignores(struct objtool_file *file)
break;
default:
WARN("unexpected relocation symbol type in %s: %d", sec->name, reloc->sym->type);
WARN("unexpected relocation symbol type in %s: %d",
rsec->name, reloc->sym->type);
continue;
}
@ -1284,17 +1285,17 @@ static void add_uaccess_safe(struct objtool_file *file)
*/
static int add_ignore_alternatives(struct objtool_file *file)
{
struct section *sec;
struct section *rsec;
struct reloc *reloc;
struct instruction *insn;
sec = find_section_by_name(file->elf, ".rela.discard.ignore_alts");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.ignore_alts");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
@ -2204,7 +2205,7 @@ static void set_func_state(struct cfi_state *state)
static int read_unwind_hints(struct objtool_file *file)
{
struct cfi_state cfi = init_cfi;
struct section *sec, *relocsec;
struct section *sec;
struct unwind_hint *hint;
struct instruction *insn;
struct reloc *reloc;
@ -2214,8 +2215,7 @@ static int read_unwind_hints(struct objtool_file *file)
if (!sec)
return 0;
relocsec = sec->reloc;
if (!relocsec) {
if (!sec->rsec) {
WARN("missing .rela.discard.unwind_hints section");
return -1;
}
@ -2295,15 +2295,15 @@ static int read_unwind_hints(struct objtool_file *file)
static int read_noendbr_hints(struct objtool_file *file)
{
struct section *sec;
struct instruction *insn;
struct section *rsec;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.noendbr");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.noendbr");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
insn = find_insn(file, reloc->sym->sec, reloc->sym->offset + reloc->addend);
if (!insn) {
WARN("bad .discard.noendbr entry");
@ -2318,17 +2318,17 @@ static int read_noendbr_hints(struct objtool_file *file)
static int read_retpoline_hints(struct objtool_file *file)
{
struct section *sec;
struct section *rsec;
struct instruction *insn;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.retpoline_safe");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.retpoline_safe");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
@ -2354,17 +2354,17 @@ static int read_retpoline_hints(struct objtool_file *file)
static int read_instr_hints(struct objtool_file *file)
{
struct section *sec;
struct section *rsec;
struct instruction *insn;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.instr_end");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.instr_end");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
@ -2377,13 +2377,13 @@ static int read_instr_hints(struct objtool_file *file)
insn->instr--;
}
sec = find_section_by_name(file->elf, ".rela.discard.instr_begin");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.instr_begin");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
@ -2401,17 +2401,17 @@ static int read_instr_hints(struct objtool_file *file)
static int read_validate_unret_hints(struct objtool_file *file)
{
struct section *sec;
struct section *rsec;
struct instruction *insn;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.validate_unret");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.validate_unret");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s", sec->name);
WARN("unexpected relocation symbol type in %s", rsec->name);
return -1;
}
@ -2430,19 +2430,19 @@ static int read_validate_unret_hints(struct objtool_file *file)
static int read_intra_function_calls(struct objtool_file *file)
{
struct instruction *insn;
struct section *sec;
struct section *rsec;
struct reloc *reloc;
sec = find_section_by_name(file->elf, ".rela.discard.intra_function_calls");
if (!sec)
rsec = find_section_by_name(file->elf, ".rela.discard.intra_function_calls");
if (!rsec)
return 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
unsigned long dest_off;
if (reloc->sym->type != STT_SECTION) {
WARN("unexpected relocation symbol type in %s",
sec->name);
rsec->name);
return -1;
}
@ -3342,15 +3342,15 @@ static inline bool func_uaccess_safe(struct symbol *func)
static inline const char *call_dest_name(struct instruction *insn)
{
static char pvname[19];
struct reloc *rel;
struct reloc *reloc;
int idx;
if (insn_call_dest(insn))
return insn_call_dest(insn)->name;
rel = insn_reloc(NULL, insn);
if (rel && !strcmp(rel->sym->name, "pv_ops")) {
idx = (rel->addend / sizeof(void *));
reloc = insn_reloc(NULL, insn);
if (reloc && !strcmp(reloc->sym->name, "pv_ops")) {
idx = (reloc->addend / sizeof(void *));
snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
return pvname;
}
@ -3361,14 +3361,14 @@ static inline const char *call_dest_name(struct instruction *insn)
static bool pv_call_dest(struct objtool_file *file, struct instruction *insn)
{
struct symbol *target;
struct reloc *rel;
struct reloc *reloc;
int idx;
rel = insn_reloc(file, insn);
if (!rel || strcmp(rel->sym->name, "pv_ops"))
reloc = insn_reloc(file, insn);
if (!reloc || strcmp(reloc->sym->name, "pv_ops"))
return false;
idx = (arch_dest_reloc_offset(rel->addend) / sizeof(void *));
idx = (arch_dest_reloc_offset(reloc->addend) / sizeof(void *));
if (file->pv_ops[idx].clean)
return true;
@ -4410,7 +4410,7 @@ static int validate_ibt(struct objtool_file *file)
if (sec->sh.sh_flags & SHF_EXECINSTR)
continue;
if (!sec->reloc)
if (!sec->rsec)
continue;
/*
@ -4437,7 +4437,7 @@ static int validate_ibt(struct objtool_file *file)
strstr(sec->name, "__patchable_function_entries"))
continue;
list_for_each_entry(reloc, &sec->reloc->reloc_list, list)
list_for_each_entry(reloc, &sec->rsec->reloc_list, list)
warnings += validate_ibt_data_reloc(file, reloc);
}

View File

@ -233,17 +233,17 @@ struct reloc *find_reloc_by_dest_range(const struct elf *elf, struct section *se
unsigned long offset, unsigned int len)
{
struct reloc *reloc, *r = NULL;
struct section *rsec;
unsigned long o;
if (!sec->reloc)
rsec = sec->rsec;
if (!rsec)
return NULL;
sec = sec->reloc;
for_offset_range(o, offset, offset + len) {
elf_hash_for_each_possible(reloc, reloc, hash,
sec_offset_hash(sec, o)) {
if (reloc->sec != sec)
sec_offset_hash(rsec, o)) {
if (reloc->sec != rsec)
continue;
if (reloc->offset >= offset && reloc->offset < offset + len) {
@ -534,7 +534,7 @@ static int read_symbols(struct elf *elf)
}
static struct section *elf_create_reloc_section(struct elf *elf,
struct section *base,
struct section *sec,
int reltype);
int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset,
@ -542,7 +542,7 @@ int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset,
{
struct reloc *reloc;
if (!sec->reloc && !elf_create_reloc_section(elf, sec, SHT_RELA))
if (!sec->rsec && !elf_create_reloc_section(elf, sec, SHT_RELA))
return -1;
reloc = malloc(sizeof(*reloc));
@ -552,18 +552,18 @@ int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset,
}
memset(reloc, 0, sizeof(*reloc));
reloc->sec = sec->reloc;
reloc->sec = sec->rsec;
reloc->offset = offset;
reloc->type = type;
reloc->sym = sym;
reloc->addend = addend;
list_add_tail(&reloc->sym_reloc_entry, &sym->reloc_list);
list_add_tail(&reloc->list, &sec->reloc->reloc_list);
list_add_tail(&reloc->list, &sec->rsec->reloc_list);
elf_hash_add(reloc, &reloc->hash, reloc_hash(reloc));
sec->reloc->sh.sh_size += sec->reloc->sh.sh_entsize;
sec->reloc->changed = true;
sec->rsec->sh.sh_size += sec->rsec->sh.sh_entsize;
sec->rsec->changed = true;
return 0;
}
@ -865,9 +865,9 @@ int elf_add_reloc_to_insn(struct elf *elf, struct section *sec,
return elf_add_reloc(elf, sec, offset, type, sym, addend);
}
static int read_rel_reloc(struct section *sec, int i, struct reloc *reloc, unsigned int *symndx)
static int read_rel_reloc(struct section *rsec, int i, struct reloc *reloc, unsigned int *symndx)
{
if (!gelf_getrel(sec->data, i, &reloc->rel)) {
if (!gelf_getrel(rsec->data, i, &reloc->rel)) {
WARN_ELF("gelf_getrel");
return -1;
}
@ -878,9 +878,9 @@ static int read_rel_reloc(struct section *sec, int i, struct reloc *reloc, unsig
return 0;
}
static int read_rela_reloc(struct section *sec, int i, struct reloc *reloc, unsigned int *symndx)
static int read_rela_reloc(struct section *rsec, int i, struct reloc *reloc, unsigned int *symndx)
{
if (!gelf_getrela(sec->data, i, &reloc->rela)) {
if (!gelf_getrela(rsec->data, i, &reloc->rela)) {
WARN_ELF("gelf_getrela");
return -1;
}
@ -894,7 +894,7 @@ static int read_rela_reloc(struct section *sec, int i, struct reloc *reloc, unsi
static int read_relocs(struct elf *elf)
{
unsigned long nr_reloc, max_reloc = 0, tot_reloc = 0;
struct section *sec;
struct section *rsec;
struct reloc *reloc;
unsigned int symndx;
struct symbol *sym;
@ -903,51 +903,52 @@ static int read_relocs(struct elf *elf)
if (!elf_alloc_hash(reloc, elf->text_size / 16))
return -1;
list_for_each_entry(sec, &elf->sections, list) {
if ((sec->sh.sh_type != SHT_RELA) &&
(sec->sh.sh_type != SHT_REL))
list_for_each_entry(rsec, &elf->sections, list) {
if ((rsec->sh.sh_type != SHT_RELA) &&
(rsec->sh.sh_type != SHT_REL))
continue;
sec->base = find_section_by_index(elf, sec->sh.sh_info);
if (!sec->base) {
rsec->base = find_section_by_index(elf, rsec->sh.sh_info);
if (!rsec->base) {
WARN("can't find base section for reloc section %s",
sec->name);
rsec->name);
return -1;
}
sec->base->reloc = sec;
rsec->base->rsec = rsec;
nr_reloc = 0;
sec->reloc_data = calloc(sec->sh.sh_size / sec->sh.sh_entsize, sizeof(*reloc));
if (!sec->reloc_data) {
rsec->reloc_data = calloc(rsec->sh.sh_size / rsec->sh.sh_entsize,
sizeof(*reloc));
if (!rsec->reloc_data) {
perror("calloc");
return -1;
}
for (i = 0; i < sec->sh.sh_size / sec->sh.sh_entsize; i++) {
reloc = &sec->reloc_data[i];
switch (sec->sh.sh_type) {
for (i = 0; i < rsec->sh.sh_size / rsec->sh.sh_entsize; i++) {
reloc = &rsec->reloc_data[i];
switch (rsec->sh.sh_type) {
case SHT_REL:
if (read_rel_reloc(sec, i, reloc, &symndx))
if (read_rel_reloc(rsec, i, reloc, &symndx))
return -1;
break;
case SHT_RELA:
if (read_rela_reloc(sec, i, reloc, &symndx))
if (read_rela_reloc(rsec, i, reloc, &symndx))
return -1;
break;
default: return -1;
}
reloc->sec = sec;
reloc->sec = rsec;
reloc->idx = i;
reloc->sym = sym = find_symbol_by_index(elf, symndx);
if (!reloc->sym) {
WARN("can't find reloc entry symbol %d for %s",
symndx, sec->name);
symndx, rsec->name);
return -1;
}
list_add_tail(&reloc->sym_reloc_entry, &sym->reloc_list);
list_add_tail(&reloc->list, &sec->reloc_list);
list_add_tail(&reloc->list, &rsec->reloc_list);
elf_hash_add(reloc, &reloc->hash, reloc_hash(reloc));
nr_reloc++;
@ -1140,40 +1141,41 @@ struct section *elf_create_section(struct elf *elf, const char *name,
return sec;
}
static struct section *elf_create_rel_reloc_section(struct elf *elf, struct section *base)
static struct section *elf_create_rel_reloc_section(struct elf *elf,
struct section *sec)
{
char *relocname;
struct section *sec;
struct section *rsec;
relocname = malloc(strlen(base->name) + strlen(".rel") + 1);
relocname = malloc(strlen(sec->name) + strlen(".rel") + 1);
if (!relocname) {
perror("malloc");
return NULL;
}
strcpy(relocname, ".rel");
strcat(relocname, base->name);
strcat(relocname, sec->name);
sec = elf_create_section(elf, relocname, sizeof(GElf_Rel), 0);
rsec = elf_create_section(elf, relocname, sizeof(GElf_Rel), 0);
free(relocname);
if (!sec)
if (!rsec)
return NULL;
base->reloc = sec;
sec->base = base;
sec->rsec = rsec;
rsec->base = sec;
sec->sh.sh_type = SHT_REL;
sec->sh.sh_addralign = 8;
sec->sh.sh_link = find_section_by_name(elf, ".symtab")->idx;
sec->sh.sh_info = base->idx;
sec->sh.sh_flags = SHF_INFO_LINK;
rsec->sh.sh_type = SHT_REL;
rsec->sh.sh_addralign = 8;
rsec->sh.sh_link = find_section_by_name(elf, ".symtab")->idx;
rsec->sh.sh_info = sec->idx;
rsec->sh.sh_flags = SHF_INFO_LINK;
return sec;
return rsec;
}
static struct section *elf_create_rela_reloc_section(struct elf *elf, struct section *base)
{
char *relocname;
struct section *sec;
struct section *rsec;
int addrsize = elf_class_addrsize(elf);
relocname = malloc(strlen(base->name) + strlen(".rela") + 1);
@ -1185,23 +1187,23 @@ static struct section *elf_create_rela_reloc_section(struct elf *elf, struct sec
strcat(relocname, base->name);
if (addrsize == sizeof(u32))
sec = elf_create_section(elf, relocname, sizeof(Elf32_Rela), 0);
rsec = elf_create_section(elf, relocname, sizeof(Elf32_Rela), 0);
else
sec = elf_create_section(elf, relocname, sizeof(GElf_Rela), 0);
rsec = elf_create_section(elf, relocname, sizeof(GElf_Rela), 0);
free(relocname);
if (!sec)
if (!rsec)
return NULL;
base->reloc = sec;
sec->base = base;
base->rsec = rsec;
rsec->base = base;
sec->sh.sh_type = SHT_RELA;
sec->sh.sh_addralign = addrsize;
sec->sh.sh_link = find_section_by_name(elf, ".symtab")->idx;
sec->sh.sh_info = base->idx;
sec->sh.sh_flags = SHF_INFO_LINK;
rsec->sh.sh_type = SHT_RELA;
rsec->sh.sh_addralign = addrsize;
rsec->sh.sh_link = find_section_by_name(elf, ".symtab")->idx;
rsec->sh.sh_info = base->idx;
rsec->sh.sh_flags = SHF_INFO_LINK;
return sec;
return rsec;
}
static struct section *elf_create_reloc_section(struct elf *elf,
@ -1215,28 +1217,28 @@ static struct section *elf_create_reloc_section(struct elf *elf,
}
}
static int elf_rebuild_rel_reloc_section(struct section *sec)
static int elf_rebuild_rel_reloc_section(struct section *rsec)
{
struct reloc *reloc;
int idx = 0;
void *buf;
/* Allocate a buffer for relocations */
buf = malloc(sec->sh.sh_size);
buf = malloc(rsec->sh.sh_size);
if (!buf) {
perror("malloc");
return -1;
}
sec->data->d_buf = buf;
sec->data->d_size = sec->sh.sh_size;
sec->data->d_type = ELF_T_REL;
rsec->data->d_buf = buf;
rsec->data->d_size = rsec->sh.sh_size;
rsec->data->d_type = ELF_T_REL;
idx = 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
reloc->rel.r_offset = reloc->offset;
reloc->rel.r_info = GELF_R_INFO(reloc->sym->idx, reloc->type);
if (!gelf_update_rel(sec->data, idx, &reloc->rel)) {
if (!gelf_update_rel(rsec->data, idx, &reloc->rel)) {
WARN_ELF("gelf_update_rel");
return -1;
}
@ -1246,29 +1248,29 @@ static int elf_rebuild_rel_reloc_section(struct section *sec)
return 0;
}
static int elf_rebuild_rela_reloc_section(struct section *sec)
static int elf_rebuild_rela_reloc_section(struct section *rsec)
{
struct reloc *reloc;
int idx = 0;
void *buf;
/* Allocate a buffer for relocations with addends */
buf = malloc(sec->sh.sh_size);
buf = malloc(rsec->sh.sh_size);
if (!buf) {
perror("malloc");
return -1;
}
sec->data->d_buf = buf;
sec->data->d_size = sec->sh.sh_size;
sec->data->d_type = ELF_T_RELA;
rsec->data->d_buf = buf;
rsec->data->d_size = rsec->sh.sh_size;
rsec->data->d_type = ELF_T_RELA;
idx = 0;
list_for_each_entry(reloc, &sec->reloc_list, list) {
list_for_each_entry(reloc, &rsec->reloc_list, list) {
reloc->rela.r_offset = reloc->offset;
reloc->rela.r_addend = reloc->addend;
reloc->rela.r_info = GELF_R_INFO(reloc->sym->idx, reloc->type);
if (!gelf_update_rela(sec->data, idx, &reloc->rela)) {
if (!gelf_update_rela(rsec->data, idx, &reloc->rela)) {
WARN_ELF("gelf_update_rela");
return -1;
}
@ -1278,11 +1280,11 @@ static int elf_rebuild_rela_reloc_section(struct section *sec)
return 0;
}
static int elf_rebuild_reloc_section(struct elf *elf, struct section *sec)
static int elf_rebuild_reloc_section(struct elf *elf, struct section *rsec)
{
switch (sec->sh.sh_type) {
case SHT_REL: return elf_rebuild_rel_reloc_section(sec);
case SHT_RELA: return elf_rebuild_rela_reloc_section(sec);
switch (rsec->sh.sh_type) {
case SHT_REL: return elf_rebuild_rel_reloc_section(rsec);
case SHT_RELA: return elf_rebuild_rela_reloc_section(rsec);
default: return -1;
}
}
@ -1308,13 +1310,13 @@ int elf_write_insn(struct elf *elf, struct section *sec,
int elf_write_reloc(struct elf *elf, struct reloc *reloc)
{
struct section *sec = reloc->sec;
struct section *rsec = reloc->sec;
if (sec->sh.sh_type == SHT_REL) {
if (rsec->sh.sh_type == SHT_REL) {
reloc->rel.r_info = GELF_R_INFO(reloc->sym->idx, reloc->type);
reloc->rel.r_offset = reloc->offset;
if (!gelf_update_rel(sec->data, reloc->idx, &reloc->rel)) {
if (!gelf_update_rel(rsec->data, reloc->idx, &reloc->rel)) {
WARN_ELF("gelf_update_rel");
return -1;
}
@ -1323,7 +1325,7 @@ int elf_write_reloc(struct elf *elf, struct reloc *reloc)
reloc->rela.r_addend = reloc->addend;
reloc->rela.r_offset = reloc->offset;
if (!gelf_update_rela(sec->data, reloc->idx, &reloc->rela)) {
if (!gelf_update_rela(rsec->data, reloc->idx, &reloc->rela)) {
WARN_ELF("gelf_update_rela");
return -1;
}

View File

@ -33,7 +33,7 @@ struct section {
struct rb_root_cached symbol_tree;
struct list_head symbol_list;
struct list_head reloc_list;
struct section *base, *reloc;
struct section *base, *rsec;
struct symbol *sym;
Elf_Data *data;
char *name;