objtool-args-$(CONFIG_HAVE_JUMP_LABEL_HACK) += --hacks=jump_label
objtool-args-$(CONFIG_HAVE_NOINSTR_HACK) += --hacks=noinstr
+objtool-args-$(CONFIG_CALL_DEPTH_TRACKING) += --hacks=skylake
objtool-args-$(CONFIG_X86_KERNEL_IBT) += --ibt
+objtool-args-$(CONFIG_FINEIBT) += --cfi
objtool-args-$(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL) += --mcount
+ ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL
+ objtool-args-$(CONFIG_HAVE_OBJTOOL_NOP_MCOUNT) += --mnop
+ endif
objtool-args-$(CONFIG_UNWINDER_ORC) += --orc
objtool-args-$(CONFIG_RETPOLINE) += --retpoline
objtool-args-$(CONFIG_RETHUNK) += --rethunk
return false;
insn = find_insn(file, func->sec, func->offset);
- if (!insn_func(insn))
- if (!insn || !insn->func)
++ if (!insn || !insn_func(insn))
return false;
func_for_each_insn(file, func, insn) {
return 0;
}
+static int create_cfi_sections(struct objtool_file *file)
+{
+ struct section *sec, *s;
+ struct symbol *sym;
+ unsigned int *loc;
+ int idx;
+
+ sec = find_section_by_name(file->elf, ".cfi_sites");
+ if (sec) {
+ INIT_LIST_HEAD(&file->call_list);
+ WARN("file already has .cfi_sites section, skipping");
+ return 0;
+ }
+
+ idx = 0;
+ for_each_sec(file, s) {
+ if (!s->text)
+ continue;
+
+ list_for_each_entry(sym, &s->symbol_list, list) {
+ if (sym->type != STT_FUNC)
+ continue;
+
+ if (strncmp(sym->name, "__cfi_", 6))
+ continue;
+
+ idx++;
+ }
+ }
+
+ sec = elf_create_section(file->elf, ".cfi_sites", 0, sizeof(unsigned int), idx);
+ if (!sec)
+ return -1;
+
+ idx = 0;
+ for_each_sec(file, s) {
+ if (!s->text)
+ continue;
+
+ list_for_each_entry(sym, &s->symbol_list, list) {
+ if (sym->type != STT_FUNC)
+ continue;
+
+ if (strncmp(sym->name, "__cfi_", 6))
+ continue;
+
+ loc = (unsigned int *)sec->data->d_buf + idx;
+ memset(loc, 0, sizeof(unsigned int));
+
+ if (elf_add_reloc_to_insn(file->elf, sec,
+ idx * sizeof(unsigned int),
+ R_X86_64_PC32,
+ s, sym->offset))
+ return -1;
+
+ idx++;
+ }
+ }
+
+ return 0;
+}
+
static int create_mcount_loc_sections(struct objtool_file *file)
{
- struct section *sec;
- unsigned long *loc;
+ int addrsize = elf_class_addrsize(file->elf);
struct instruction *insn;
+ struct section *sec;
int idx;
sec = find_section_by_name(file->elf, "__mcount_loc");