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Florian Weimer c1cb2deeca elf: execve statically linked programs instead of crashing [BZ #28648]
Programs without dynamic dependencies and without a program
interpreter are now run via execve.

Previously, the dynamic linker either crashed while attempting to
read a non-existing dynamic segment (looking for DT_AUDIT/DT_DEPAUDIT
data), or the self-relocated in the static PIE executable crashed
because the outer dynamic linker had already applied RELRO protection.

<dl-execve.h> is needed because execve is not available in the
dynamic loader on Hurd.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2021-12-05 11:28:34 +01:00
argp Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
assert Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
benchtests benchtests: Add partial overlap case in bench-memmove-walk.c 2021-11-06 16:17:59 -05:00
bits nptl: Extract <bits/atomic_wide_counter.h> from pthread_cond_common.c 2021-11-17 12:20:13 +01:00
catgets Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
ChangeLog.old Update ChangeLog.old/ChangeLog.23. 2021-08-01 21:33:43 -04:00
conform Use $(pie-default) with conformtest 2021-09-17 19:24:14 +00:00
crypt Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
csu Extend struct r_debug to support multiple namespaces [BZ #15971] 2021-09-19 13:51:35 -07:00
ctype Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
debug debug: Add tests for _FORTIFY_SOURCE=3 2021-10-20 18:13:05 +05:30
dirent Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
dlfcn Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
elf elf: execve statically linked programs instead of crashing [BZ #28648] 2021-12-05 11:28:34 +01:00
gmon Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
gnulib Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
grp Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
gshadow Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
hesiod Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
htl htl: Fix sigset of main thread 2021-09-26 02:40:26 +02:00
hurd hurd: Let report-wait use a weak reference to _hurd_itimer_thread 2021-11-28 21:26:25 +01:00
iconv iconv: Use TIMEOUTFACTOR for iconv test timeout 2021-10-21 11:11:07 -03:00
iconvdata gconv: Do not emit spurious NUL character in ISO-2022-JP-3 (bug 28524) 2021-11-04 19:59:42 +01:00
include io: Refactor close_range and closefrom 2021-11-24 09:09:37 -03:00
inet Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
intl Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
io io: Refactor close_range and closefrom 2021-11-24 09:09:37 -03:00
libio Make sure that the fortified function conditionals are constant 2021-10-20 18:12:41 +05:30
locale locale: Add missing second argument to _Static_assert in C-collate-seq.c 2021-09-06 19:43:37 +02:00
localedata locale: Fix localedata/sort-test undefined behavior 2021-11-08 15:28:48 -03:00
login login: Add back libutil as an empty library 2021-10-29 06:18:55 +09:00
mach Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
malloc malloc: Fix malloc debug for 2.35 onwards 2021-11-17 21:33:39 +09:00
manual Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
math math: Also xfail the new j0f tests for ibm128-libgcc 2021-10-06 10:50:31 -03:00
mathvec Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
misc nptl: Extract <bits/atomic_wide_counter.h> from pthread_cond_common.c 2021-11-17 12:20:13 +01:00
nis Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
nptl nptl: Increase default TCB alignment to 32 2021-12-03 20:43:31 +01:00
nptl_db Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
nscd Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
nss nss: Unnest nested function add_key 2021-10-19 09:36:43 -07:00
po po/nl.po: Update Dutch translation. 2021-08-01 20:52:28 -04:00
posix regex: fix buffer read overrun in search [BZ#28470] 2021-11-24 14:16:09 -08:00
pwd Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
resolv resolv: Avoid GCC 12 false positive warning [BZ #28439]. 2021-10-11 09:36:57 -06:00
resource y2038: Add support for 64-bit time on legacy ABIs 2021-06-15 10:42:11 -03:00
rt Remove unreliable parts of rt/tst-cpuclock2 2021-10-07 22:38:49 -04:00
scripts dso-ordering-test.py: Put all sources in one directory [BZ #28550] 2021-11-15 11:53:40 -08:00
setjmp setjmp: Replace jmp_buf-macros.h with jmp_buf-macros.sym 2021-11-22 13:43:22 -03:00
shadow Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
signal Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
socket socket: Do not use AF_NETLINK in __opensock 2021-11-22 14:47:13 +01:00
soft-fp Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
stdio-common Support C2X printf %b, %B 2021-11-10 15:52:21 +00:00
stdlib Add alloc_align attribute to memalign et al 2021-10-21 00:19:20 +01:00
string x86-64: Use notl in EVEX strcmp [BZ #28646] 2021-12-03 21:14:11 -08:00
sunrpc Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
support Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
sysdeps elf: execve statically linked programs instead of crashing [BZ #28648] 2021-12-05 11:28:34 +01:00
sysvipc Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
termios Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
time Fix subscript error with odd TZif file [BZ #28338] 2021-10-07 11:09:16 -03:00
timezone tst-tzset: output reason when creating 4GiB file fails 2021-11-13 08:08:47 +09:00
wcsmbs Support C2X printf %b, %B 2021-11-10 15:52:21 +00:00
wctype Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Remove the bulk of the NaCl port. 2017-05-20 08:09:10 -04:00
aclocal.m4 Fix LIBC_PROG_BINUTILS for -fuse-ld=lld 2021-10-29 09:21:37 -03:00
config.h.in Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
config.make.in Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
configure Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
configure.ac Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
CONTRIBUTED-BY Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
extra-lib.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL Add --with-timeoutfactor=NUM to specify TIMEOUTFACTOR 2021-12-04 12:58:28 -08:00
libc-abis riscv: support GNU indirect function 2021-01-10 21:25:13 -05:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
Makeconfig Remove the unused +mkdep/+make-deps/s-proto.S/s-proto-cancel.S 2021-11-10 04:54:18 -08:00
Makefile testrun.sh: Add support for --tool=rpctrace 2021-09-10 01:24:10 +02:00
Makefile.help Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Remove the unused +mkdep/+make-deps/s-proto.S/s-proto-cancel.S 2021-11-10 04:54:18 -08:00
NEWS elf: execve statically linked programs instead of crashing [BZ #28648] 2021-12-05 11:28:34 +01:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
README Documentation for the RISC-V 32-bit port 2020-08-27 08:17:44 -07:00
Rules Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
SHARED-FILES Mention today's regex merge in SHARED-FILES 2021-09-21 18:00:10 -07:00
shlib-versions Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
test-skeleton.c Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
version.h Open master branch for glibc 2.35 development 2021-08-01 21:54:40 -04:00

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arc*-*-linux-gnu
	arm-*-linux-gnueabi
	csky-*-linux-gnuabiv2
	hppa-*-linux-gnu
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	riscv32-*-linux-gnu
	riscv64-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see https://www.gnu.org/software/libc/ for more
information.

See the file INSTALL to find out how to configure, build, and install
the GNU C Library.  You might also consider reading the WWW pages for
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The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
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