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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
81 lines
2.5 KiB
ArmAsm
81 lines
2.5 KiB
ArmAsm
/* i386-specific implementation of profiling support.
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Copyright (C) 1997-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* We need a special version of the `mcount' function since for ix86 it
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must not clobber any register. This has several reasons:
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- there is a bug in gcc as of version 2.7.2.2 which prohibits the
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use of profiling together with nested functions
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- the ELF `fixup' function uses GCC's regparm feature
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- some (future) systems might want to pass parameters in registers. */
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.globl C_SYMBOL_NAME(_mcount)
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.type C_SYMBOL_NAME(_mcount), @function
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.align ALIGNARG(4)
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C_LABEL(_mcount)
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_CET_ENDBR
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/* Save the caller-clobbered registers. */
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pushl %eax
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pushl %ecx
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pushl %edx
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movl 12(%esp), %edx
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movl 4(%ebp), %eax
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/* No need to access the PLT or GOT, __mcount_internal is an
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internal function and we can make a relative call. */
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call C_SYMBOL_NAME(__mcount_internal)
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/* Pop the saved registers. Please note that `mcount' has no
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return value. */
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popl %edx
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popl %ecx
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popl %eax
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ret
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ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount))
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#undef mcount
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weak_alias (_mcount, mcount)
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/* Same as above, but doesn't require a frame pointer */
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.globl C_SYMBOL_NAME(__fentry__)
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.type C_SYMBOL_NAME(__fentry__), @function
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.align ALIGNARG(4)
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C_LABEL(__fentry__)
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_CET_ENDBR
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/* Save the caller-clobbered registers. */
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pushl %eax
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pushl %ecx
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pushl %edx
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movl 12(%esp), %edx
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movl 16(%esp), %eax
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/* No need to access the PLT or GOT, __mcount_internal is an
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internal function and we can make a relative call. */
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call C_SYMBOL_NAME(__mcount_internal)
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/* Pop the saved registers. Please note that `__fentry__' has no
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return value. */
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popl %edx
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popl %ecx
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popl %eax
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ret
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ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(__fentry__))
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