Florian Weimer 035c012e32 Reduce the statically linked startup code [BZ #23323] ... It turns out the startup code in csu/elf-init.c has a perfect pair of ROP gadgets (see Marco-Gisbert and Ripoll-Ripoll, "return-to-csu: A New Method to Bypass 64-bit Linux ASLR"). These functions are not needed in dynamically-linked binaries because DT_INIT/DT_INIT_ARRAY are already processed by the dynamic linker. However, the dynamic linker skipped the main program for some reason. For maximum backwards compatibility, this is not changed, and instead, the main map is consulted from __libc_start_main if the init function argument is a NULL pointer. For statically linked binaries, the old approach based on linker symbols is still used because there is nothing else available. A new symbol version __libc_start_main@@GLIBC_2.34 is introduced because new binaries running on an old libc would not run their ELF constructors, leading to difficult-to-debug issues.		2021-02-25 12:13:02 +01:00
..
bits	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sys	aarch64: Fix sys/ptrace.h if linux headers are included	2021-02-15 13:42:01 +00:00
arch-syscall.h	Update syscall lists for Linux 5.11.	2021-02-19 21:16:27 +00:00
c++-types.data
clone.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
configure
configure.ac
cpu-features.c	tunables: Simplify TUNABLE_SET interface	2021-02-10 19:08:33 +05:30
cpu-features.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-cache.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-static.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
getcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gettimeofday.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Implies
ioctl.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmp_buf-macros.h
kernel_rt_sigframe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
kernel-features.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ld.abilist	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
ldconfig.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ldsodefs.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libanl.abilist
libBrokenLocale.abilist
libc-start.c	Use hidden visibility for early static PIE code	2021-01-21 15:55:01 +00:00
libc.abilist	Reduce the statically linked startup code [BZ #23323]	2021-02-25 12:13:02 +01:00
libcrypt.abilist
libdl.abilist
libm.abilist	New exp10f version without SVID compat wrapper	2020-06-19 12:08:47 -03:00
libnsl.abilist
libpthread.abilist	nptl: Move pthread_gettattr_np into libc	2020-05-20 20:27:49 +02:00
libresolv.abilist
librt.abilist
libthread_db.abilist
libutil.abilist
localplt.data	aarch64: Accept PLT calls to __getauxval within libc.so	2020-05-12 12:51:10 +02:00
makecontext.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	aarch64: Remove the unused __read_tp symbol	2021-02-22 09:17:12 +00:00
readelflib.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
shlib-versions
sigaction.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sigcontextinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
swapcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
syscall.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysconf.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysdep.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysdep.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ucontext_i.sym
ucontext-internal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Versions
vfork.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00