AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-06 11:40:05 +00:00
Code Issues Packages Projects Releases Wiki Activity
e5ccf113cd
glibc/sysdeps/unix/sysv/linux/aarch64
History
Sudakshina Das 605338745b aarch64: enable BTI at runtime 
Binaries can opt-in to using BTI via an ELF object file marking.
The dynamic linker has to then mprotect the executable segments
with PROT_BTI. In case of static linked executables or in case
of the dynamic linker itself, PROT_BTI protection is done by the
operating system.

On AArch64 glibc uses PT_GNU_PROPERTY instead of PT_NOTE to check
the properties of a binary because PT_NOTE can be unreliable with
old linkers (old linkers just append the notes of input objects
together and add them to the output without checking them for
consistency which means multiple incompatible GNU property notes
can be present in PT_NOTE).

BTI property is handled in the loader even if glibc is not built
with BTI support, so in theory user code can be BTI protected
independently of glibc. In practice though user binaries are not
marked with the BTI property if glibc has no support because the
static linked libc objects (crt files, libc_nonshared.a) are
unmarked.

This patch relies on Linux userspace API that is not yet in a
linux release but in v5.8-rc1 so scheduled to be in Linux 5.8.

Co-authored-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2020-07-08 15:02:37 +01:00
..
bits aarch64: enable BTI at runtime 2020-07-08 15:02:37 +01:00
sys Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
__read_tp.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
arch-syscall.h Update syscall lists for Linux 5.6. 2020-04-03 18:07:55 +00:00
c++-types.data AArch64: Consolidate nptl/ subdirectories under linux/... 2014-06-26 09:29:24 -07:00
clone.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
configure LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 2018-01-25 17:20:28 +01:00
configure.ac Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac. 2014-07-17 14:35:48 +00:00
cpu-features.c aarch64: enable BTI at runtime 2020-07-08 15:02:37 +01:00
cpu-features.h aarch64: enable BTI at runtime 2020-07-08 15:02:37 +01:00
dl-cache.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-static.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
gettimeofday.c linux: Consolidate Linux gettimeofday 2020-01-03 11:21:50 -03:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
ioctl.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
jmp_buf-macros.h Add jmp_buf-macros.h 2017-11-09 05:10:03 -08:00
kernel_rt_sigframe.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
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. 2020-01-01 00:14:33 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libanl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libBrokenLocale.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libc-__read_tp.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-start.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc.abilist string: Add strerrorname_np and strerrordesc_np 2020-07-07 15:02:57 -03:00
libcrypt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libdl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libm.abilist New exp10f version without SVID compat wrapper 2020-06-19 12:08:47 -03:00
libnsl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libpthread.abilist nptl: Move pthread_gettattr_np into libc 2020-05-20 20:27:49 +02:00
libresolv.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
librt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libthread_db.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libutil.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
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. 2020-01-01 00:14:33 +00:00
Makefile elf: Move vDSO setup to rtld (BZ#24967) 2020-01-03 11:22:07 -03:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
shlib-versions Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
sigaction.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
swapcontext.S aarch64: fix swapcontext for BTI 2020-07-08 15:02:37 +01:00
syscall.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysconf.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.h linux: Remove INTERNAL_SYSCALL_DECL 2020-02-14 21:12:45 -03:00
ucontext_i.sym aarch64: Revert the change of the __reserved member of mcontext_t 2018-01-24 11:53:30 +00:00
ucontext-internal.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
vfork.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00