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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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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 | ||
Makefile | ||
start.c | ||
static-reloc.c | ||
sysdep.c | ||
version.c | ||
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