mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 21:41:08 +00:00
0a45b76c62
2001-03-23 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h (ENTRY): Moved to ... * sysdeps/ia64/sysdep.h: ...here. * sysdeps/ia64/sysdep.h (LOCAL_ENTRY): Define. * sysdeps/ia64/sysdep.h (LOCAL_LEAF): Define. * sysdeps/ia64/_mcount.S (_mcount_ret_helper): Use LOCAL_LEAF() to declare instead of LEAF(). Suggestion from David Mosberger. 2001-03-21 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h (CALL_MCOUNT): Add unwind directives. (PSEUDO): Drop .psr and .lsb directives. * sysdeps/unix/sysv/linux/ia64/setjmp.S: Ditto. Add unwind directives. * sysdeps/unix/sysv/linux/ia64/sysdep.S: Ditto. * sysdeps/ia64/elf/start.S: Misc cleanup: remove .psr and .lsb directives etc. * sysdeps/unix/sysv/linux/ia64/brk.S: Ditto. * sysdeps/unix/sysv/linux/ia64/__longjmp.S: Ditto. * sysdeps/ia64/_mcount.S: Remove .psr and .lsb directives (no longer needed). Add unwind directives. * sysdeps/ia64/sysdep.h: Define ASM_UNW_PRLG_RP, ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_PSP, ASM_UNW_PRLG_PR, and ASM_UNW_PRLG_GRSAVE. 2001-03-21 Paul Eggert <eggert@twinsun.com> * posix/regex.h (RE_INVALID_INTERVAL_ORD): New macro. (RE_SYNTAX_POSIX_EGREP): Use it. * posix/regex.c (regex_compile): Implement it. 2001-03-21 Paul Eggert <eggert@twinsun.com> * posix/regex.c (GET_UNSIGNED_NUMBER): Check for overflow. Rewrite to avoid duplicate code. 2001-03-21 H.J. Lu <hjl@gnu.org> * elf/Makefile (tests): Don't depend on $(objpfx)tst-pathopt.out for cross-compiling. ($(objpfx)tst-pathopt.out): Undo the last change.
92 lines
2.9 KiB
ArmAsm
92 lines
2.9 KiB
ArmAsm
/* Machine-specific calling sequence for `mcount' profiling function. ia64
|
|
Copyright (C) 2000 Free Software Foundation, Inc.
|
|
Contributed by David Mosberger <davidm@hpl.hp.com>
|
|
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 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. */
|
|
|
|
/* Assembly stub to invoke _mcount(). Compiler generated code calls
|
|
this stub before executing a function's prologue and without saving
|
|
any registers. It is therefore necessary to preserve the input
|
|
registers as they may contain function arguments. To work
|
|
correctly with frame-less functions, it is also necessary to
|
|
preserve the return pointer (b0 aka rp).
|
|
|
|
State upon entering _mcount:
|
|
|
|
r8 address of return value structure (used only when called
|
|
function returns a large structure)
|
|
r15 static link (used only for nested functions)
|
|
in0 ar.pfs to restore before returning to the function that
|
|
called _mcount
|
|
in1 gp value to restore before returning to the function that
|
|
called _mcount
|
|
in2 return address in the function that invoked the caller
|
|
of _mcount (frompc)
|
|
in3 address of the global-offset table entry that holds the
|
|
profile count dword allocated by the compiler; to get
|
|
the address of this dword, use "ld8 in2=[in2]; this
|
|
dword can be used in any way by _mcount (including
|
|
not at all, as is the case with the current implementation)
|
|
b0 address to return to after _mcount is done
|
|
*/
|
|
|
|
#include <sysdep.h>
|
|
|
|
#undef ret
|
|
|
|
LEAF(_mcount)
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(4)
|
|
alloc loc1 = ar.pfs, 4, 4, 3, 0
|
|
mov loc0 = rp
|
|
.body
|
|
mov loc2 = r8 // gcc uses r8 to pass pointer to return structure
|
|
;;
|
|
mov loc3 = r15 // gcc uses r15 to pass the static link to nested functions
|
|
mov out0 = in2
|
|
mov out1 = rp
|
|
br.call.sptk.few rp = __mcount
|
|
;;
|
|
.here:
|
|
{
|
|
.mii
|
|
mov gp = in1
|
|
mov r2 = ip
|
|
mov ar.pfs = loc1
|
|
}
|
|
;;
|
|
adds r2 = _mcount_ret_helper - .here, r2
|
|
mov b7 = loc0
|
|
mov rp = in2
|
|
;;
|
|
mov r8 = loc2
|
|
mov r15 = loc3
|
|
mov b6 = r2
|
|
br.ret.sptk.few b6
|
|
END(_mcount)
|
|
|
|
LOCAL_LEAF(_mcount_ret_helper)
|
|
.prologue
|
|
.altrp b7
|
|
.save ar.pfs, r40
|
|
.body
|
|
alloc r2 = ar.pfs, 0, 0, 9, 0
|
|
mov ar.pfs = r40
|
|
br b7
|
|
END(_mcount_ret_helper)
|
|
|
|
weak_alias (_mcount, mcount)
|