glibc/sysdeps/s390/s390-mcount.S
Andreas Jaeger 847b055c65 Update.
2000-08-02  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/s390/Dist: New file.
	* sysdeps/unix/sysv/linux/s390/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/s390/sysdep.S: New file.
	* sysdeps/unix/sysv/linux/s390/syscall.S: New file.
	* sysdeps/unix/sysv/linux/s390/sys/user.h: New file.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: New file.
	* sysdeps/unix/sysv/linux/s390/sys/elf.h: New file.
	* sysdeps/unix/sysv/linux/s390/socket.S: New file.
	* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: New file.
	* sysdeps/unix/sysv/linux/s390/shmctl.c: New file.
	* sysdeps/unix/sysv/linux/s390/setreuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setresuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setresgid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setregid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setgroups.c: New file.
	* sysdeps/unix/sysv/linux/s390/setgid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setfsuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setfsgid.c: New file.
	* sysdeps/unix/sysv/linux/s390/seteuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/setegid.c: New file.
	* sysdeps/unix/sysv/linux/s390/semctl.c: New file.
	* sysdeps/unix/sysv/linux/s390/register-dump.h: New file.
	* sysdeps/unix/sysv/linux/s390/putpmsg.c: New file.
	* sysdeps/unix/sysv/linux/s390/putmsg.c: New file.
	* sysdeps/unix/sysv/linux/s390/profil-counter.h: New file.
	* sysdeps/unix/sysv/linux/s390/msgctl.c: New file.
	* sysdeps/unix/sysv/linux/s390/mmap.S: New file.
	* sysdeps/unix/sysv/linux/s390/getuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/getresuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/getresgid.c: New file.
	* sysdeps/unix/sysv/linux/s390/getpmsg.c: New file.
	* sysdeps/unix/sysv/linux/s390/getmsg.c: New file.
	* sysdeps/unix/sysv/linux/s390/getgroups.c: New file.
	* sysdeps/unix/sysv/linux/s390/getegid.c: New file.
	* sysdeps/unix/sysv/linux/s390/geteuid.c: New file.
	* sysdeps/unix/sysv/linux/s390/fchown.c: New file.
	* sysdeps/unix/sysv/linux/s390/clone.S: New file.
	* sysdeps/unix/sysv/linux/s390/brk.c: New file.
	* sysdeps/unix/sysv/linux/s390/bits/time.h: New file.
	* sysdeps/unix/sysv/linux/s390/bits/resource.h: New file.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h: New file.
	* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: New file.
	* sysdeps/unix/sysv/linux/s390/Makefile: New file.
	* sysdeps/s390/sysdep.h: New file.
	* sysdeps/s390/sys/ucontext.h: New file.
	* sysdeps/s390/sub_n.S: New file.
	* sysdeps/s390/strncpy.S: New file.
	* sysdeps/s390/strcpy.S: New file.
	* sysdeps/s390/stackinfo.h: New file.
	* sysdeps/s390/setjmp.S: New file.
	* sysdeps/s390/s390-mcount.S: New file.
	* sysdeps/s390/mul_1.S: New file.
	* sysdeps/s390/memusage.h: New file.
	* sysdeps/s390/memset.S: New file.
	* sysdeps/s390/memcpy.S: New file.
	* sysdeps/s390/memchr.S: New file.
	* sysdeps/s390/machine-gmon.h: New file.
	* sysdeps/s390/ldbl2mpn.c: New file.
	* sysdeps/s390/gmp-mparam.h: New file.
	* sysdeps/s390/fpu/fpu_control.h: New file.
	* sysdeps/s390/fpu/fesetround.c: New file.
	* sysdeps/s390/fpu/fegetround.c: New file.
	* sysdeps/s390/fpu/fclrexcpt.c: New file.
	* sysdeps/s390/fpu/bits/fenv.h: New file.
	* sysdeps/s390/ffs.c: New file.
	* sysdeps/s390/elf/start.S: New file.
	* sysdeps/s390/elf/setjmp.S: New file.
	* sysdeps/s390/elf/bsd-setjmp.S: New file.
	* sysdeps/s390/elf/bsd-_setjmp.S: New file.
	* sysdeps/s390/dl-machine.h: New file.
	* sysdeps/s390/bzero.S: New file.
	* sysdeps/s390/bsd-setjmp.S: New file.
	* sysdeps/s390/bsd-_setjmp.S: New file.
	* sysdeps/s390/bits/string.h: New file.
	* sysdeps/s390/bits/setjmp.h: New file.
	* sysdeps/s390/bits/huge_val.h: New file.
	* sysdeps/s390/bits/endian.h: New file.
	* sysdeps/s390/bits/byteswap.h: New file.
	* sysdeps/s390/bcopy.S: New file.
	* sysdeps/s390/backtrace.c: New file.
	* sysdeps/s390/atomicity.h: New file.
	* sysdeps/s390/asm-syntax.h: New file.
	* sysdeps/s390/addmul_1.S: New file.
	* sysdeps/s390/add_n.S: New file.
	* sysdeps/s390/abort-instr.h: New file.
	* sysdeps/s390/__longjmp.c: New file.
	* sysdeps/s390/Makefile: New file.
	* sysdeps/s390/Implies: New file.
	* sysdeps/s390/Dist: New file.
	Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>.
2000-08-02 15:15:00 +00:00

85 lines
2.7 KiB
ArmAsm

/* S/390-specific implemetation of profiling support.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com)
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
/*
* How profiling works on S/390:
* On the start of each function _mcount is called with the address of a
* data word in %r1 (initialized to 0, used for counting). The compiler
* with the option -p generates code of the form:
*
* STM 6,15,24(15)
* BRAS 13,.LTN0_0
* .LT0_0:
* .LC12: .long _mcount
* .LC13: .long .LP0
* .data
* .align 4
* .LP0: .long 0
* .text
* # function profiler
* st 14,4(15)
* l 14,.LC12-.LT0_0(13)
* l 1,.LC13-.LT0_0(13)
* basr 14,14
* l 14,4(15)
*
* The _mcount implementation now has to call __mcount_internal with the
* address of .LP0 as first parameter and the return address as second
* parameter. &.LP0 was loaded to %r1 and the return address is in %r14.
* _mcount may not modify any register.
*/
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(_mcount)
ASM_TYPE_DIRECTIVE(C_SYMBOL_NAME(_mcount), @function)
.align ALIGNARG(4)
C_LABEL(_mcount)
/* Save the caller-clobbered registers. */
ahi %r15,-128
stm %r14,%r5,96(%r15)
l %r2,132(%r15) # callers address = first parameter
la %r2,0(%r2) # clear bit 0
la %r3,0(%r14) # callees address = second parameter
#ifdef PIC
bras %r14,0f
.long _GLOBAL_OFFSET_TABLE_-.
0: al %r14,0(%r14)
l %r14,__mcount_internal@GOT(%r14)
#else
bras %r14,0f
.long __mcount_internal
0: l %r14,0(%r14)
#endif
basr %r14,%r14
/*
* Pop the saved registers. Please note that `mcount' has no
* return value.
*/
lm %r14,%r5,96(%r15)
ahi %r15,128
br %r14
ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount))
#undef mcount
weak_alias(_mcount, mcount)