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| author | Pekka Enberg <penberg@kernel.org> | 2012-01-13 17:20:15 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-01-13 17:23:01 +0200 |
| commit | 02b74cfc656c21563dccd564d66097dd7a939c85 (patch) | |
| tree | 0cb6ef0ea77a4f4aa973762f5ce711d94d001d4a | |
| parent | 15dacee29e048dbc0d6de81574dbabb0adeb715e (diff) | |
| download | jato-02b74cfc656c21563dccd564d66097dd7a939c85.tar.gz | |
x86-32: Fix stack frame size in generated prolog
The frame_locals_size() function returns stack frame size in bytes so just use
the returned value in emit_prolog(). This fixes unnecessary large stack frames
on x86-32.
Signed-off-by: Pekka Enberg <penberg@kernel.org>
| -rw-r--r-- | arch/x86/emit-code.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/emit-code.c b/arch/x86/emit-code.c index 878d5819..c56cbfea 100644 --- a/arch/x86/emit-code.c +++ b/arch/x86/emit-code.c @@ -665,7 +665,7 @@ static void emit_test_imm_memdisp(struct insn *insn, struct buffer *buf, struct } void emit_prolog(struct buffer *buf, struct stack_frame *frame, - unsigned long nr_locals) + unsigned long frame_size) { /* Unconditionally push callee-saved registers */ __emit_push_reg(buf, MACH_REG_EDI); @@ -675,8 +675,8 @@ void emit_prolog(struct buffer *buf, struct stack_frame *frame, __emit_push_reg(buf, MACH_REG_EBP); __emit_mov_reg_reg(buf, MACH_REG_ESP, MACH_REG_EBP); - if (nr_locals) - __emit_sub_imm_reg(buf, nr_locals * sizeof(unsigned long), MACH_REG_ESP); + if (frame_size) + __emit_sub_imm_reg(buf, frame_size, MACH_REG_ESP); } void emit_epilog(struct buffer *buf) |