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author | Florian Weimer <fweimer@redhat.com> | 2021-12-05 13:50:17 +0100 |
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committer | Florian Weimer <fweimer@redhat.com> | 2021-12-05 13:50:21 +0100 |
commit | 4fb4e7e821e36180835bf88e363f9f13b5797e3a (patch) | |
tree | e315c682e44885fe627ad0a2d10d006fef8ee140 /sysdeps/powerpc/powerpc64 | |
parent | c1cb2deeca1a85c6fc5bd41b90816d48a95bc434 (diff) | |
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csu: Always use __executable_start in gmon-start.c
Current binutils defines __executable_start as the lowest text
address, so using the entry point address as a fallback is no
longer necessary. As a result, overriding <entry.h> is only
necessary if the entry point is not called _start.
The previous approach to define __ASSEMBLY__ to suppress the
declaration breaks if headers included by <entry.h> are not
compatible with __ASSEMBLY__. This happens with rseq integration
because it is necessary to include kernel headers in more places.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
-rw-r--r-- | sysdeps/powerpc/powerpc64/entry.h | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/sysdeps/powerpc/powerpc64/entry.h b/sysdeps/powerpc/powerpc64/entry.h deleted file mode 100644 index 99c81cb982..0000000000 --- a/sysdeps/powerpc/powerpc64/entry.h +++ /dev/null @@ -1,37 +0,0 @@ -/* Finding the entry point and start of text. PowerPC64 version. - Copyright (C) 2002-2021 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/>. */ - - -#ifndef __ASSEMBLY__ -extern void _start (void); -#endif - -#define ENTRY_POINT _start - -#if _CALL_ELF != 2 -/* We have to provide a special declaration. */ -#define ENTRY_POINT_DECL(class) class void _start (void); - -/* Use the address of ._start as the lowest address for which we need - to keep profiling records. We can't copy the ia64 scheme as our - entry poiny address is really the address of the function - descriptor, not the actual function entry. */ -#define TEXT_START \ - ({ extern unsigned long int _start_as_data[] asm ("_start"); \ - _start_as_data[0]; }) -#endif |