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authorIngo Molnar <mingo@kernel.org>2020-05-18 13:00:36 +0300
committerIngo Molnar <mingo@kernel.org>2020-05-18 13:09:37 +0300
commit7c0577f4e609f7278ebd6d21e2de82b42f110944 (patch)
tree4136e3c6beb37726f16cf1f6270f3f16cde7897e /tools/objtool
parent6b5dd716da8fc3aba65e6b7d992dea0cee2f9528 (diff)
parentb9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce (diff)
Merge tag 'v5.7-rc6' into objtool/core, to pick up fixes and resolve semantic conflict
Resolve structural conflict between: 59566b0b622e: ("x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up") which introduced a new reference to 'ftrace_epilogue', and: 0298739b7983: ("x86,ftrace: Fix ftrace_regs_caller() unwind") Which renamed it to 'ftrace_caller_end'. Rename the new usage site in the merge commit. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/objtool')
-rw-r--r--tools/objtool/check.c17
-rw-r--r--tools/objtool/elf.h7
2 files changed, 18 insertions, 6 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 6b2b458a5b0e..e36a818a2fed 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -73,6 +73,17 @@ static struct instruction *next_insn_same_func(struct objtool_file *file,
return find_insn(file, func->cfunc->sec, func->cfunc->offset);
}
+static struct instruction *prev_insn_same_sym(struct objtool_file *file,
+ struct instruction *insn)
+{
+ struct instruction *prev = list_prev_entry(insn, list);
+
+ if (&prev->list != &file->insn_list && prev->func == insn->func)
+ return prev;
+
+ return NULL;
+}
+
#define func_for_each_insn(file, func, insn) \
for (insn = find_insn(file, func->sec, func->offset); \
insn; \
@@ -1096,8 +1107,8 @@ static struct rela *find_jump_table(struct objtool_file *file,
* it.
*/
for (;
- &insn->list != &file->insn_list && insn->func && insn->func->pfunc == func;
- insn = insn->first_jump_src ?: list_prev_entry(insn, list)) {
+ insn && insn->func && insn->func->pfunc == func;
+ insn = insn->first_jump_src ?: prev_insn_same_sym(file, insn)) {
if (insn != orig_insn && insn->type == INSN_JUMP_DYNAMIC)
break;
@@ -1613,7 +1624,7 @@ static int update_cfi_state_regs(struct instruction *insn,
{
struct cfi_reg *cfa = &cfi->cfa;
- if (cfa->base != CFI_SP)
+ if (cfa->base != CFI_SP && cfa->base != CFI_SP_INDIRECT)
return 0;
/* push */
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index 9d6bb072849c..f4fe1d6ea392 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -89,9 +89,10 @@ struct elf {
#define OFFSET_STRIDE (1UL << OFFSET_STRIDE_BITS)
#define OFFSET_STRIDE_MASK (~(OFFSET_STRIDE - 1))
-#define for_offset_range(_offset, _start, _end) \
- for (_offset = ((_start) & OFFSET_STRIDE_MASK); \
- _offset <= ((_end) & OFFSET_STRIDE_MASK); \
+#define for_offset_range(_offset, _start, _end) \
+ for (_offset = ((_start) & OFFSET_STRIDE_MASK); \
+ _offset >= ((_start) & OFFSET_STRIDE_MASK) && \
+ _offset <= ((_end) & OFFSET_STRIDE_MASK); \
_offset += OFFSET_STRIDE)
static inline u32 sec_offset_hash(struct section *sec, unsigned long offset)