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Richard Earnshaw 3784dfc098 malloc: Basic support for memory tagging in the malloc() family 
This patch adds the basic support for memory tagging.

Various flavours are supported, particularly being able to turn on
tagged memory at run-time: this allows the same code to be used on
systems where memory tagging support is not present without neededing
a separate build of glibc.  Also, depending on whether the kernel
supports it, the code will use mmap for the default arena if morecore
does not, or cannot support tagged memory (on AArch64 it is not
available).

All the hooks use function pointers to allow this to work without
needing ifuncs.

Reviewed-by: DJ Delorie <dj@redhat.com>
2020-12-21 15:25:25 +00:00
..
arpa CVE-2016-10739: getaddrinfo: Fully parse IPv4 address strings [BZ #20018] 2019-01-21 21:26:03 +01:00
bits time: Add 64-bit time_t support for ftime 2020-10-27 09:54:50 -03:00
gnu Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
net Fix resolver if_* namespace (bug 17717). 2014-12-16 18:18:49 +00:00
netinet nss_files: Consolidate line parse declarations in <nss_files.h> 2020-07-21 07:33:20 +02:00
programs Use 2020 as copyright year. 2020-04-27 10:34:52 -04:00
protocols (abmon): Remove spaces. 1998-11-12 18:03:43 +00:00
rpc Handle out-of-memory case in svc_tcp.c/svc_unix.c:rendezvous_request. 2020-12-10 11:11:20 +01:00
rpcsvc Remove --enable-obsolete-nsl configure flag 2020-07-08 17:25:57 +02:00
sys hurd: Move {,f,l}xstat{,at} and xmknod{at} to compat symbols 2020-11-11 23:56:56 +00:00
aio.h y2038: Convert aio_suspend to support 64 bit time 2020-11-30 14:08:44 +01:00
aliases.h Remove --enable-obsolete-nsl configure flag 2020-07-08 17:25:57 +02:00
alloc_buffer.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
alloca.h Remove macros extend_alloca, extend_alloca_account [BZ #18023] 2018-06-27 19:20:37 +02:00
allocate_once.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ar.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
argp-fmtstream.h Mark internal argp functions with attribute_hidden [BZ #18822] 2017-10-01 15:10:27 -07:00
argp.h ldbl-opt: Add argp_error and argp_failure (bug 23983) 2019-03-01 15:21:32 -03:00
argz.h Use libc_hidden_* for argz_next, __argz_next (bug 15105). 2018-02-15 21:00:02 +00:00
array_length.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
assert.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
atomic.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
byteswap.h Update. 1998-04-10 10:52:25 +00:00
complex.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
cpio.h Add more headers to include/ for conform tests. 2014-12-11 21:41:30 +00:00
crypt.h Add include/crypt.h. 2016-10-28 22:40:16 -04:00
ctype.h Use libc_hidden_* for tolower, toupper (bug 15105). 2018-02-23 13:54:53 +00:00
des.h Update. 1998-03-24 10:39:42 +00:00
dirent.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
dlfcn.h Remove --enable-obsolete-nsl configure flag 2020-07-08 17:25:57 +02:00
dso_handle.h Mark __dso_handle as hidden [BZ #18822] 2017-09-26 16:53:44 -07:00
elf.h elf: Refuse to dlopen PIE objects [BZ #24323] 2019-06-18 16:42:10 +02:00
endian.h Update. 2001-03-30 05:34:59 +00:00
envz.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
err.h ldbl-128ibm-compat: PLT redirects for using ldbl redirects internally 2020-03-25 14:34:23 -05:00
errno.h Remove tls.h inclusion from internal errno.h 2020-11-13 12:59:19 -03:00
error.h ldbl-opt: Add error and error_at_line (bug 23984) 2019-03-01 15:26:36 -03:00
execinfo.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
fcntl.h Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 2018-06-26 13:22:53 -03:00
features.h Prepare for glibc 2.32 release. 2020-08-04 22:17:00 -04:00
fenv.h Move fenv.h soft-float inlines from fenv_private.h to include/fenv.h. 2018-09-04 19:52:06 +00:00
file_change_detection.h Move implementation of <file_change_detection.h> into a C file 2020-02-18 13:44:48 +01:00
float.h Make totalorder and totalordermag functions take pointer arguments. 2019-08-15 15:18:34 +00:00
fmtmsg.h Add more headers to include/ for conform tests. 2014-12-11 21:41:30 +00:00
fnmatch.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
fpu_control.h Hide internal __setfpucw function [BZ #18822] 2017-10-01 17:52:15 -07:00
fstab.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
fts.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
ftw.h Update. 1997-06-21 02:59:26 +00:00
gconv.h Update. 1997-11-18 02:50:07 +00:00
getopt_int.h Update. 2004-03-09 10:36:53 +00:00
getopt.h getopt: remove USE_NONOPTION_FLAGS 2017-04-07 07:45:53 -04:00
glob.h Hide internal __glob64 function [BZ #18822] 2017-10-01 18:02:10 -07:00
gmp.h Mark internal gmp functions with attribute_hidden [BZ #18822] 2017-10-01 15:15:30 -07:00
gnu-versions.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
grp-merge.h NSS: Implement group merging support. 2016-04-29 22:18:21 -04:00
grp.h nss_files: Consolidate line parse declarations in <nss_files.h> 2020-07-21 07:33:20 +02:00
gshadow.h nss_files: Consolidate line parse declarations in <nss_files.h> 2020-07-21 07:33:20 +02:00
iconv.h Update. 1999-08-21 00:38:15 +00:00
ifaddrs.h hurd: Fix getifaddrs' and freeifaddrs' symbol exposition 2017-09-28 01:05:18 +02:00
ifreq.h Hide internal __ifreq function [BZ #18822] 2017-10-01 17:35:46 -07:00
ifunc-impl-list.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
inline-hashtab.h ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] 2020-02-15 11:01:23 +01:00
intprops.h Sync intprops.h from Gnulib 2020-08-04 22:58:58 -07:00
inttypes.h Make strtoimax, strtoumax, wcstoimax, wcstoumax into aliases 2020-12-08 18:15:27 +00:00
langinfo.h Add first fixes for conformtest for POSIX2008 2012-02-26 21:32:56 -05:00
lastlog.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
libc-diag.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-internal.h Replace __libc_multiple_libcs with __libc_initial flag 2020-12-16 15:13:40 +01:00
libc-pointer-arith.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-symbols.h Mark __libc_freeres_fn as used [BZ #27002] 2020-12-16 04:40:12 -08:00
libgen.h Update. 1997-06-21 02:59:26 +00:00
libintl.h Document the internal _ and N_ macros 2020-05-06 17:35:40 +02:00
limits.h Add C2x BOOL_MAX and BOOL_WIDTH to limits.h. 2020-08-19 22:46:41 +00:00
link.h elf: Make __rtld_env_path_list and __rtld_search_dirs global variables 2020-10-08 17:12:28 +02:00
list_t.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
list.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
locale.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
loop_unroll.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
malloc.h malloc: Basic support for memory tagging in the malloc() family 2020-12-21 15:25:25 +00:00
math-narrow-eval.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
math.h float128: use builtin_signbitf128 always 2020-05-04 13:18:45 -05:00
mcheck.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
memory.h Update. 1997-06-21 02:59:26 +00:00
mntent.h Hide internal __hasmntopt function [BZ #18822] 2017-10-01 17:37:42 -07:00
monetary.h Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 2020-04-30 08:52:08 -05:00
mqueue.h y2038: linux: Provide __mq_timedreceive_time64 implementation 2020-04-06 23:05:11 +02:00
netdb.h y2038: Convert gai_suspend to support 64 bit time 2020-12-04 10:04:38 +01:00
netgroup.h Update. 1997-06-21 02:59:26 +00:00
nl_types.h Update. 1997-12-22 20:53:38 +00:00
nss_files.h nss: Add __nss_fgetent_r 2020-07-21 07:33:50 +02:00
nss.h nss: Export nscd hash function as __nss_hash [BZ #22459] 2017-11-23 14:08:11 +01:00
nsswitch.h Update. 1997-06-21 02:59:26 +00:00
obstack.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
plural-exp.h Hide internal __gettextparse function [BZ #18822] 2017-10-01 17:31:05 -07:00
poll.h Update. 2000-08-21 16:02:48 +00:00
printf.h Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 2020-04-30 08:52:08 -05:00
pthread.h Fix mq_notify pthread_barrier_* namespace (bug 18544). 2015-06-17 20:16:56 +00:00
pty.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
pwd.h nss_files: Consolidate line parse declarations in <nss_files.h> 2020-07-21 07:33:20 +02:00
random-bits.h y2038: Replace __clock_gettime with __clock_gettime64 2020-05-20 16:45:16 +02:00
re_comp.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
regex.h Hide internal regex functions [BZ #18822] 2017-10-01 15:53:15 -07:00
regexp.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
resolv.h Obsolete p_secstodate. 2017-11-22 22:21:10 +00:00
rounding-mode.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
rtld-malloc.h elf: Implement __rtld_malloc_is_complete 2020-10-08 11:00:42 +02:00
sched.h Add hidden prototypes for __sched_getparam, __sched_getscheduler 2020-02-20 08:57:01 +01:00
scratch_buffer.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
search.h misc: Add twalk_r function 2019-05-02 11:42:51 +02:00
set-hooks.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
setjmp.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
sgtty.h Update. 1997-06-21 02:59:26 +00:00
shadow.h nss_files: Consolidate line parse declarations in <nss_files.h> 2020-07-21 07:33:20 +02:00
shlib-compat.h Remove --enable-obsolete-rpc configure flag 2020-07-13 19:36:35 +02:00
signal.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
spawn.h posix: Use posix_spawn for wordexp 2019-10-09 17:48:41 -03:00
stab.h Update. 1997-06-21 02:59:26 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stap-probe.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stdc-predef.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stdint.h Move inttypes.h and stdint.h to stdlib. 2019-03-13 09:42:09 -04:00
stdio_ext.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
stdio.h libio: Remove __libc_readline_unlocked 2020-07-21 07:34:50 +02:00
stdlib.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
string.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
strings.h Update. 1997-06-21 02:59:26 +00:00
struct___timeb64.h time: Add 64-bit time_t support for ftime 2020-10-27 09:54:50 -03:00
struct___timespec64.h y2038: include: Move struct __timespec64 definition to a separate file 2020-04-06 23:05:11 +02:00
struct___timeval64.h y2038: include: Move struct __timeval64 definition to a separate file 2020-05-05 19:36:25 +02:00
stubs-prologue.h * sysdeps/generic/bits/libc-tsd.h [USE___THREAD]: Conditional 2002-10-11 10:52:20 +00:00
syscall.h Update. 1997-06-21 02:59:26 +00:00
sysexits.h Update. 1997-06-21 02:59:26 +00:00
syslog.h Update. 1997-06-21 02:59:26 +00:00
tar.h Update. 1997-06-21 02:59:26 +00:00
termios.h Hide internal __tcgetattr function [BZ #18822] 2017-10-01 17:48:24 -07:00
tgmath.h Update. 1998-09-06 23:45:24 +00:00
time.h y2038: linux: Provide __time64 implementation 2020-10-19 16:01:37 +02:00
ttyent.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
uchar.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
ucontext.h Update. 1999-10-12 18:17:41 +00:00
ulimit.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
unistd.h hurd: keep only required PLTs in ld.so 2020-11-11 02:36:22 +01:00
utime.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00
utmp.h Mark internal utmp functions with attribute_hidden [BZ #18822] 2017-10-01 15:51:56 -07:00
values.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
verify.h posix: Sync regex with gnulib 2019-11-06 09:20:52 -03:00
wait.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
wchar.h Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 2020-04-30 08:52:08 -05:00
wctype.h Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
wordexp.h First steps to get conformtest fully working 2012-02-25 23:18:39 -05:00