diff options
Diffstat (limited to 'sysdeps/i386/i386-mcount.S')
| -rw-r--r-- | sysdeps/i386/i386-mcount.S | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/sysdeps/i386/i386-mcount.S b/sysdeps/i386/i386-mcount.S deleted file mode 100644 index 733b8c78e7..0000000000 --- a/sysdeps/i386/i386-mcount.S +++ /dev/null @@ -1,79 +0,0 @@ -/* i386-specific implementation of profiling support. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -/* We need a special version of the `mcount' function since for ix86 it - must not clobber any register. This has several reasons: - - there is a bug in gcc as of version 2.7.2.2 which prohibits the - use of profiling together with nested functions - - the ELF `fixup' function uses GCC's regparm feature - - some (future) systems might want to pass parameters in registers. */ - - .globl C_SYMBOL_NAME(_mcount) - .type C_SYMBOL_NAME(_mcount), @function - .align ALIGNARG(4) -C_LABEL(_mcount) - /* Save the caller-clobbered registers. */ - pushl %eax - pushl %ecx - pushl %edx - - movl 12(%esp), %edx - movl 4(%ebp), %eax - - /* No need to access the PLT or GOT, __mcount_internal is an - internal function and we can make a relative call. */ - call C_SYMBOL_NAME(__mcount_internal) - - /* Pop the saved registers. Please note that `mcount' has no - return value. */ - popl %edx - popl %ecx - popl %eax - ret - ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount)) - -#undef mcount -weak_alias (_mcount, mcount) - - /* Same as above, but doesn't require a frame pointer */ - .globl C_SYMBOL_NAME(__fentry__) - .type C_SYMBOL_NAME(__fentry__), @function - .align ALIGNARG(4) -C_LABEL(__fentry__) - /* Save the caller-clobbered registers. */ - pushl %eax - pushl %ecx - pushl %edx - - movl 12(%esp), %edx - movl 16(%esp), %eax - - /* No need to access the PLT or GOT, __mcount_internal is an - internal function and we can make a relative call. */ - call C_SYMBOL_NAME(__mcount_internal) - - /* Pop the saved registers. Please note that `__fentry__' has no - return value. */ - popl %edx - popl %ecx - popl %eax - ret - ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(__fentry__)) |