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
..
64
fpu	libmvec: Add extra-test-objs to test-extras	2021-01-19 06:20:46 -08:00
multiarch	x86-64: Refactor and improve performance of strchr-avx2.S	2021-02-08 11:21:33 -08:00
nptl	x86: Use x86/nptl/pthreaddef.h	2021-02-22 15:52:56 -08:00
x32	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
____longjmp_chk.S
__longjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
_mcount.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
abort-instr.h
add_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
addmul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bzero.S
configure	configure: Check for static PIE support	2021-01-21 15:54:50 +00:00
configure.ac	configure: Check for static PIE support	2021-01-21 15:54:50 +00:00
crti.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
crtn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-hwcaps-subdirs.c	<sys/platform/x86.h>: Remove the C preprocessor magic	2021-01-21 05:58:17 -08:00
dl-irel.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-machine.h	x86: Check IFUNC definition in unrelocated executable [BZ #20019]	2021-01-04 12:01:01 -08:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-runtime.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tls.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tls.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tlsdesc.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tlsdesc.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-trampoline.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-trampoline.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ffs.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ffsll.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
htonl.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifuncmain8.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifuncmod8.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Implies	Remove dbl-64/wordsize-64 (part 2)	2021-01-07 15:26:26 +00:00
isa.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmpbuf-offsets.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
l10nflist.c
link-defines.sym
locale-defines.sym
localplt.data	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
lshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	x86_64: Add glibc-hwcaps support	2020-12-04 09:36:02 +01:00
memchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcpy_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcpy.S
memmove_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memmove.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mempcpy_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mempcpy.S
memrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memset_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memset.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memusage.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mp_clz_tab.c
mul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
preconfigure
preconfigure.ac
rawmemchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rtld-offsets.sym
sched_cpucount.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stack-aliasing.h
stackguard-macros.h
stackinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
start.S	Reduce the statically linked startup code [BZ #23323]	2021-02-25 12:13:02 +01:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strchrnul.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcpy.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcspn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strlen.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S
strrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strspn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sub_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
submul_1.S	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
tls_get_addr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-macros.h
tlsdesc.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit4.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit10.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-auditmod3a.c
tst-auditmod3b.c
tst-auditmod4a.c
tst-auditmod4b.c
tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
tst-auditmod6b.c
tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-auditmod10b.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512mod.c
tst-avx-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avxmod.c
tst-glibc-hwcaps.c	<sys/platform/x86.h>: Remove the C preprocessor magic	2021-01-21 05:58:17 -08:00
tst-mallocalign1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platform-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platformmod-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platformmod-2.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quad1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quadmod1pie.S
tst-quadmod2.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quadmod2pie.S
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-ssemod.c
tst-stack-align.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-x86_64-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-x86_64mod-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Versions	Move __fentry__ version definition to sysdeps/{i386,x86_64}	2018-08-10 09:07:44 +02:00
wcschr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcscmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcslen.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcsrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wmemset_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wmemset.S
wordcopy.c