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Subject[PATCH v3 17/26] objtool: Re-arrange validate_functions()
In preparation to adding a vmlinux.o specific pass, rearrange some
code. No functional changes intended.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
tools/objtool/check.c | 60 ++++++++++++++++++++++++++++----------------------
1 file changed, 34 insertions(+), 26 deletions(-)

--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2413,9 +2413,8 @@ static bool ignore_unreachable_insn(stru
return false;
}

-static int validate_functions(struct objtool_file *file)
+static int validate_section(struct objtool_file *file, struct section *sec)
{
- struct section *sec;
struct symbol *func;
struct instruction *insn;
struct insn_state state;
@@ -2428,35 +2427,44 @@ static int validate_functions(struct obj
CFI_NUM_REGS * sizeof(struct cfi_reg));
state.stack_size = initial_func_cfi.cfa.offset;

- for_each_sec(file, sec) {
- list_for_each_entry(func, &sec->symbol_list, list) {
- if (func->type != STT_FUNC)
- continue;
-
- if (!func->len) {
- WARN("%s() is missing an ELF size annotation",
- func->name);
- warnings++;
- }
-
- if (func->pfunc != func || func->alias != func)
- continue;
-
- insn = find_insn(file, sec, func->offset);
- if (!insn || insn->ignore || insn->visited)
- continue;
-
- state.uaccess = func->uaccess_safe;
-
- ret = validate_branch(file, func, insn, state);
- if (ret && backtrace)
- BT_FUNC("<=== (func)", insn);
- warnings += ret;
+ list_for_each_entry(func, &sec->symbol_list, list) {
+ if (func->type != STT_FUNC)
+ continue;
+
+ if (!func->len) {
+ WARN("%s() is missing an ELF size annotation",
+ func->name);
+ warnings++;
}
+
+ if (func->pfunc != func || func->alias != func)
+ continue;
+
+ insn = find_insn(file, sec, func->offset);
+ if (!insn || insn->ignore || insn->visited)
+ continue;
+
+ state.uaccess = func->uaccess_safe;
+
+ ret = validate_branch(file, func, insn, state);
+ if (ret && backtrace)
+ BT_FUNC("<=== (func)", insn);
+ warnings += ret;
}

return warnings;
}
+
+static int validate_functions(struct objtool_file *file)
+{
+ struct section *sec;
+ int warnings = 0;
+
+ for_each_sec(file, sec)
+ warnings += validate_section(file, sec);
+
+ return warnings;
+}

static int validate_reachable_instructions(struct objtool_file *file)
{

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