glibc/sysdeps/sh/_mcount.S

87 lines
2.1 KiB
ArmAsm

/* Machine-specific calling sequence for `mcount' profiling function. SuperH
Copyright (C) 2001-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
.globl C_SYMBOL_NAME(_mcount)
.type C_SYMBOL_NAME(_mcount),@function
cfi_startproc
.align 5
C_LABEL(_mcount)
/* Save registers. */
mov.l r4,@-r15
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r4, 0)
mov.l r5,@-r15
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r5, 0)
mov.l r6,@-r15
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r6, 0)
mov.l r7,@-r15
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r7, 0)
sts.l pr,@-r15
cfi_adjust_cfa_offset (4)
cfi_rel_offset (pr, 0)
mov.l @(20,r15),r4
sts pr,r5
#ifdef SHARED
mov.l 0f,r1
mova 0f,r0
add r1,r0
mov.l 1f,r1
mov.l @(r0,r1),r1
#else
mov.l 1f,r1
#endif
jsr @r1
nop
/* Pop the saved registers. */
lds.l @r15+,pr
cfi_adjust_cfa_offset (-4)
cfi_restore (pr)
mov.l @r15+,r7
cfi_adjust_cfa_offset (-4)
cfi_restore (r7)
mov.l @r15+,r6
cfi_adjust_cfa_offset (-4)
cfi_restore (r6)
mov.l @r15+,r5
cfi_adjust_cfa_offset (-4)
cfi_restore (r5)
rts
mov.l @r15+,r4
/* Omit CFI for restore in delay slot. */
.align 2
#ifdef SHARED
0: .long _GLOBAL_OFFSET_TABLE_
1: .long C_SYMBOL_NAME(__mcount_internal)@GOT
#else
1: .long C_SYMBOL_NAME(__mcount_internal)
#endif
cfi_endproc
ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount))
#undef mcount
weak_alias (_mcount, mcount)