84a7eb1f87
Glibc assumes that ENTRY_POINT is the lowest address for which we need
to keep profiling records and BFD linker uses a linker script to place
the input sections.
Starting from GCC 4.6, the main function is placed in .text.startup
section and starting from binutils 2.22, BFD linker with
commit add44f8d5c5c05e08b11e033127a744d61c26aee
Author: Alan Modra <amodra@gmail.com>
Date: Thu Nov 25 03:03:02 2010 +0000
* scripttempl/elf.sc: Group .text.exit, text.startup and .text.hot
sections.
places .text.startup section before .text section, which leave the main
function out of profiling records.
Starting from binutils 2.15, linker provides __executable_start to mark
the lowest address of the executable. Use __executable_start as the
lowest address to keep the main function in profiling records. This fixes
[BZ #28153].
Tested on Linux/x86-64, Linux/x32 and Linux/i686 as well as with
build-many-glibcs.py.
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|---|---|---|
| .. | ||
| Makefile | ||
| Versions | ||
| abi-note.c | ||
| check_fds.c | ||
| dso_handle.c | ||
| errno-loc.c | ||
| errno.c | ||
| gmon-start.c | ||
| init-first.c | ||
| init.c | ||
| libc-start.c | ||
| libc-tls.c | ||
| start.c | ||
| static-reloc.c | ||
| sysdep.c | ||
| version.c | ||