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#include "utils/asm.h"
GLOBAL(__fentry__)
sub $32, %esp
movl %edx, 28(%esp)
movl %ecx, 24(%esp)
movl %eax, 20(%esp)
movl $0, 16(%esp)
/* parent location */
leal 36(%esp), %eax
movl %eax, 0(%esp)
/* child addr */
movl 32(%esp), %eax
movl %eax, 4(%esp)
/* mcount_args */
leal 16(%esp), %eax
movl %eax, 8(%esp)
call mcount_entry
cmpl $0, %eax
jne 1f
/* hijack return address */
call get_pc_thunk
addl $_GLOBAL_OFFSET_TABLE_, %eax
addl $fentry_return@GOTOFF, %eax
movl %eax, 36(%esp)
1:
movl 20(%esp), %eax
movl 24(%esp), %ecx
movl 28(%esp), %edx
add $32, %esp
ret
END(__fentry__)
ENTRY(fentry_return)
sub $16, %esp
movl %edx, 8(%esp)
movl %eax, 4(%esp)
leal 4(%esp), %eax
movl %eax, 0(%esp)
call mcount_exit
movl %eax, 12(%esp)
movl 4(%esp), %eax
movl 8(%esp), %edx
add $12, %esp
ret
END(fentry_return)
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