forked from Minki/linux
cf08734380
With packed stack the backchain is at a different location. Just use __SF_BACKCHAIN as an offset to store the backchain. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
59 lines
900 B
ArmAsm
59 lines
900 B
ArmAsm
/*
|
|
* Copyright IBM Corp. 2008
|
|
*
|
|
* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
|
|
*
|
|
*/
|
|
|
|
#include <asm/asm-offsets.h>
|
|
|
|
#ifndef CONFIG_64BIT
|
|
.globl _mcount
|
|
_mcount:
|
|
stm %r0,%r5,8(%r15)
|
|
st %r14,56(%r15)
|
|
lr %r1,%r15
|
|
ahi %r15,-96
|
|
l %r3,100(%r15)
|
|
la %r2,0(%r14)
|
|
st %r1,__SF_BACKCHAIN(%r15)
|
|
la %r3,0(%r3)
|
|
bras %r14,0f
|
|
.long ftrace_trace_function
|
|
0: l %r14,0(%r14)
|
|
l %r14,0(%r14)
|
|
basr %r14,%r14
|
|
ahi %r15,96
|
|
lm %r0,%r5,8(%r15)
|
|
l %r14,56(%r15)
|
|
br %r14
|
|
|
|
.globl ftrace_stub
|
|
ftrace_stub:
|
|
br %r14
|
|
|
|
#else /* CONFIG_64BIT */
|
|
|
|
.globl _mcount
|
|
_mcount:
|
|
stmg %r0,%r5,16(%r15)
|
|
stg %r14,112(%r15)
|
|
lgr %r1,%r15
|
|
aghi %r15,-160
|
|
stg %r1,__SF_BACKCHAIN(%r15)
|
|
lgr %r2,%r14
|
|
lg %r3,168(%r15)
|
|
larl %r14,ftrace_trace_function
|
|
lg %r14,0(%r14)
|
|
basr %r14,%r14
|
|
aghi %r15,160
|
|
lmg %r0,%r5,16(%r15)
|
|
lg %r14,112(%r15)
|
|
br %r14
|
|
|
|
.globl ftrace_stub
|
|
ftrace_stub:
|
|
br %r14
|
|
|
|
#endif /* CONFIG_64BIT */
|