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linux64.S (ffi_call_LINUX64): Move restore of r2 immediately after bctrl instruction.

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* src/powerpc/linux64.S (ffi_call_LINUX64): Move restore of r2
	immediately after bctrl instruction.

From-SVN: r121498
This commit is contained in:
Jakub Jelinek 2007-02-02 13:28:27 +01:00 committed by Jakub Jelinek
parent 60def7edd2
commit 8aaf4681da
2 changed files with 10 additions and 2 deletions
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5
libffi/ChangeLog
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@ -1,3 +1,8 @@
2007-02-02 Jakub Jelinek <jakub@redhat.com>
* src/powerpc/linux64.S (ffi_call_LINUX64): Move restore of r2
immediately after bctrl instruction.
2007-01-18 Alexandre Oliva <aoliva@redhat.com>
* Makefile.am (all-recursive, install-recursive,

7
libffi/src/powerpc/linux64.S
View File

@ -47,8 +47,8 @@ ffi_call_LINUX64:
std %r0, 16(%r1)
mr %r28, %r1 /* our AP. */
stdux %r1, %r1, %r4
.LCFI0:
stdux %r1, %r1, %r4
mr %r31, %r5 /* flags, */
mr %r30, %r6 /* rvalue, */
mr %r29, %r7 /* function address. */
@ -100,6 +100,10 @@ ffi_call_LINUX64:
/* Make the call. */
bctrl
/* This must follow the call immediately, the unwinder
uses this to find out if r2 has been saved or not. */
ld %r2, 40(%r1)
/* Now, deal with the return value. */
mtcrf 0x01, %r31
bt- 30, .Ldone_return_value
@ -109,7 +113,6 @@ ffi_call_LINUX64:
.Ldone_return_value:
/* Restore the registers we used and return. */
ld %r2, 40(%r1)
mr %r1, %r28
ld %r0, 16(%r28)
ld %r28, -32(%r1)