rt: Shave 16 bytes off the __morestack frame

2012-03-21 15:10:42 -07:00 · 2012-03-21 15:10:42 -07:00 · 9ea3bc614e
commit 9ea3bc614e
parent 9f89cc9d15
1 changed files with 2 additions and 2 deletions
--- a/src/rt/arch/x86_64/morestack.S
+++ b/src/rt/arch/x86_64/morestack.S
@ -49,7 +49,7 @@ MORESTACK:
 	// Calculate the CFA as on offset from %ebp
 	.cfi_def_cfa_register %rbp

-        subq $200, %rsp
+        subq $184, %rsp

 	// FIXME: libgcc also saves rax. not sure if we need to

@ -107,7 +107,7 @@ MORESTACK:
 	movdqa 144(%rsp), %xmm6
 	movdqa 160(%rsp), %xmm7

-	addq $200, %rsp
+	addq $184, %rsp

        movq 8(%rbp),%r10       // Grab the return pointer.
        incq %r10               // Skip past the `ret` in our parent frame