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* math: remove exp10 wrappersWilco Dijkstra2024-01-1229-8/+71
| | | | | | | | Remove the error handling wrapper from exp10. This is very similar to the changes done to exp and exp2, except that we also need to handle pow10 and pow10l. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Benchtests: Increase benchmark iterationsWilco Dijkstra2024-01-122-2/+2
| | | | | | | Increase benchmark iterations for math and vector math functions to improve timing accuracy. Vector math benchmarks now take 1-3 seconds on a modern CPU. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* debug/getwd_chk.c: warning should be emitted for the __getwd_chk symbol.Frederic Cambus2024-01-121-1/+1
| | | | | | | | Otherwise the warning message for the getwd symbol ends up being duplicated. Signed-off-by: Frederic Cambus <fred@statdns.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
* Make __getrandom_nocancel set errno and add a _nostatus versionXi Ruoyao2024-01-124-2/+19
| | | | | | | | | | | | | | | | The __getrandom_nocancel function returns errors as negative values instead of errno. This is inconsistent with other _nocancel functions and it breaks "TEMP_FAILURE_RETRY (__getrandom_nocancel (p, n, 0))" in __arc4random_buf. Use INLINE_SYSCALL_CALL instead of INTERNAL_SYSCALL_CALL to fix this issue. But __getrandom_nocancel has been avoiding from touching errno for a reason, see BZ 29624. So add a __getrandom_nocancel_nostatus function and use it in tcache_key_initialize. Signed-off-by: Xi Ruoyao <xry111@xry111.site> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
* x86-64/cet: Make CET feature check specific to Linux/x86H.J. Lu2024-01-119-37/+120
| | | | | | CET feature bits in TCB, which are Linux specific, are used to check if CET features are active. Move CET feature check to Linux/x86 directory. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
* Incorporate translations (zh_CN)Andreas K. Hüttel2024-01-111-582/+580
| | | | Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
* Define ISO 639-3 "glk" (Gilaki)Mike FABIAN2024-01-111-0/+1
| | | | | | | | Resolves: BZ # 27163 References: https://iso639-3.sil.org/code/glk https://en.wikipedia.org/wiki/Gilaki_language
* resolv: Fix endless loop in __res_context_queryStefan Liebler2024-01-112-4/+8
| | | | | | | | | | | | | | | | | | | | | Starting with commit 40c0add7d48739f5d89ebba255c1df26629a76e2 "resolve: Remove __res_context_query alloca usage" there is an endless loop in __res_context_query if __res_context_mkquery fails e.g. if type is invalid. Then the scratch buffer is resized to MAXPACKET size and it is retried again. Before the mentioned commit, it was retried only once and with the mentioned commit, there is no check and it retries in an endless loop. This is observable with xtest resolv/tst-resolv-qtypes which times out after 300s. This patch retries mkquery only once as before the mentioned commit. Furthermore, scratch_buffer_set_array_size is now only called with nelem=2 if type is T_QUERY_A_AND_AAAA (also see mentioned commit). The test tst-resolv-qtypes is also adjusted to verify that <func> is really returning with -1 in case of an invalid type. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* localedata: revert all the remaining locale sources to UTF-8Mike FABIAN2024-01-11205-6090/+6088
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* localedata: am_ET ber_DZ en_GB en_PH en_US fil_PH kab_DZ om_ET om_KE ti_ET ↵Mike FABIAN2024-01-118-132/+132
| | | | tl_PH: convert to UTF-8
* localedata: resolve cyclic dependenciesMike FABIAN2024-01-1111-1050/+226
| | | | Resolves: BZ # 24006
* localedata: kv_RU: convert to UTF-8Mike FABIAN2024-01-111-57/+57
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* localedata: add new locale kv_RUMike FABIAN2024-01-112-0/+165
| | | | Resolves: BZ # 30605
* elf: Fix tst-nodeps2 test failure.Carlos O'Donell2024-01-101-1/+4
| | | | | | | | | | | | | | | | | After 78ca44da0160a0b442f0ca1f253e3360f044b2ec ("elf: Relocate libc.so early during startup and dlmopen (bug 31083)") we start seeing tst-nodeps2 failures when building the testsuite with --enable-hard-coded-path-in-tests. When building the testsuite with --enable-hard-coded-path-in-tests the tst-nodeps2-mod.so is not built with the required DT_RUNPATH values and the test escapes the test framework and loads the system libraries and aborts. The fix is to use the existing $(link-test-modules-rpath-link) variable to set DT_RUNPATH correctly. No regressions on x86_64. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* localedata: Sort Makefile variables.Carlos O'Donell2024-01-101-219/+298
| | | | | | Sort Makefile variables using scrips/sort-makefile-lines.py. No regressions on x86_64.
* locale: Sort Makefile variables.Carlos O'Donell2024-01-101-29/+97
| | | | | | Sort Makefile variables using scrips/sort-makefile-lines.py. No regressions on x86_64.
* i386: Remove CET support bitsH.J. Lu2024-01-1012-89/+45
| | | | | | | | | | | | 1. Remove _dl_runtime_resolve_shstk and _dl_runtime_profile_shstk. 2. Move CET offsets from x86 cpu-features-offsets.sym to x86-64 features-offsets.sym. 3. Rename x86 cet-control.h to x86-64 feature-control.h since it is only for x86-64 and also used for PLT rewrite. 4. Add x86-64 ldsodefs.h to include feature-control.h. 5. Change TUNABLE_CALLBACK (set_plt_rewrite) to x86-64 only. 6. Move x86 dl-procruntime.c to x86-64. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86-64/cet: Move check-cet.awk to x86_64H.J. Lu2024-01-102-1/+1
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86-64/cet: Move dl-cet.[ch] to x86_64 directoriesH.J. Lu2024-01-103-65/+47
| | | | | | Since CET is only enabled for x86-64, move dl-cet.[ch] to x86_64 directories. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86: Move x86-64 shadow stack startup codesH.J. Lu2024-01-101-1/+1
| | | | | | Move sysdeps/x86/libc-start.h to sysdeps/x86_64/libc-start.h and use sysdeps/generic/libc-start.h for i386. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Fix deprecated utcnow() usage in build-many-glibcs.pyJoseph Myers2024-01-101-1/+1
| | | | | | | | | | | | Running build-many-glibcs.py with Python 3.12 or later produces a warning: build-many-glibcs.py:566: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC). build_time = datetime.datetime.utcnow() Replace with datetime.datetime.now(datetime.timezone.utc) (the datetime.UTC constant is new in 3.11, so not suitable for use in this script at present).
* Fix invalid escape sequence in build-many-glibcs.pyJoseph Myers2024-01-101-1/+1
| | | | | | | | | | | | Running build-many-glibcs.py with Python 3.12 or later produces a warning: build-many-glibcs.py:173: SyntaxWarning: invalid escape sequence '\.' m = re.fullmatch('([0-9]+)\.([0-9]+)[.0-9]*', l) Use a raw string instead to avoid that warning. (Note: I haven't checked whether any other Python scripts included with glibc might have issues with newer Python versions.)
* math: Fix test-fenv.c feupdateenv testsAdhemerval Zanella2024-01-101-0/+1
| | | | | | | | | | The feupdateenv tests added by 802aef27b2 do not restore the floating point mask, which might keep some floating point exception enabled and thus make the feupdateenv_single_test raise an unexpected signal. Checked on x86_64-linux-gnu and aarch64-linux-gnu (on Apple M1 trapping is supported). Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* Remove installed header rule on $(..)include/%.hH.J. Lu2024-01-091-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On x86-64 machine with [hjl@gnu-cfl-3 x86-glibc]$ ls -l /usr/include/asm/prctl.h sysdeps/unix/sysv/linux/x86_64/include/asm/prctl.h -rw-r--r-- 1 hjl hjl 825 Jan 9 09:41 sysdeps/unix/sysv/linux/x86_64/include/asm/prctl.h -rw-r--r-- 1 root root 1170 Nov 27 16:00 /usr/include/asm/prctl.h [hjl@gnu-cfl-3 x86-glibc]$ glibc configured with --enable-cet build failed: make[2]: Entering directory '/export/gnu/import/git/gitlab/x86-glibc/iconv' ../Makerules:327: update target '/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/gnu/lib-names-64.h' due to: /export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/gnu/lib-names-64.stmp : ../Makeconfig:1216: update target '/export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/libc-modules.h' due to: /export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/libc-modules.stmp : ../Makerules:1126: update target '/usr/include/asm/prctl.h' due to: ../sysdeps/unix/sysv/linux/x86_64/64/../include/asm/prctl.h force-install /usr/bin/install -c -m 644 ../sysdeps/unix/sysv/linux/x86_64/64/../include/asm/prctl.h /usr/include/asm/prctl.h /usr/bin/install: cannot remove '/usr/include/asm/prctl.h': Permission denied make[2]: *** [../Makerules:1126: /usr/include/asm/prctl.h] Error 1 make[2]: Leaving directory '/export/gnu/import/git/gitlab/x86-glibc/iconv' make[1]: *** [Makefile:484: iconv/subdir_lib] Error 2 make[1]: Leaving directory '/export/gnu/import/git/gitlab/x86-glibc' make: *** [Makefile:9: all] Error 2 This is triggered by the rule in Makerules: $(inst_includedir)/%.h: $(..)include/%.h $(+force) $(do-install) Since no files under include/ should be installed, remove it from Makerules. Tested it on x86-64. There are no differences in the installed header files.
* i386: Fail if configured with --enable-cetAdhemerval Zanella2024-01-095-13/+12
| | | | | | Since it is only supported for x86_64. Checked on i686-linux-gnu.
* i386: Remove CET supportAdhemerval Zanella2024-01-0931-770/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | CET is only support for x86_64, this patch reverts: - faaee1f07ed x86: Support shadow stack pointer in setjmp/longjmp. - be9ccd27c09 i386: Add _CET_ENDBR to indirect jump targets in add_n.S/sub_n.S - c02695d7764 x86/CET: Update vfork to prevent child return - 5d844e1b725 i386: Enable CET support in ucontext functions - 124bcde683 x86: Add _CET_ENDBR to functions in crti.S - 562837c002 x86: Add _CET_ENDBR to functions in dl-tlsdesc.S - f753fa7dea x86: Support IBT and SHSTK in Intel CET [BZ #21598] - 825b58f3fb i386-mcount.S: Add _CET_ENDBR to _mcount and __fentry__ - 7e119cd582 i386: Use _CET_NOTRACK in i686/memcmp.S - 177824e232 i386: Use _CET_NOTRACK in memcmp-sse4.S - 0a899af097 i386: Use _CET_NOTRACK in memcpy-ssse3-rep.S - 7fb613361c i386: Use _CET_NOTRACK in memcpy-ssse3.S - 77a8ae0948 i386: Use _CET_NOTRACK in memset-sse2-rep.S - 00e7b76a8f i386: Use _CET_NOTRACK in memset-sse2.S - 90d15dc577 i386: Use _CET_NOTRACK in strcat-sse2.S - f1574581c7 i386: Use _CET_NOTRACK in strcpy-sse2.S - 4031d7484a i386/sub_n.S: Add a missing _CET_ENDBR to indirect jump - target - Checked on i686-linux-gnu.
* x86: Move CET infrastructure to x86_64Adhemerval Zanella2024-01-0962-265/+270
| | | | | | | | The CET is only supported for x86_64 and there is no plan to add kernel support for i386. Move the Makefile rules and files from the generic x86 folder to x86_64 one. Checked on x86_64-linux-gnu and i686-linux-gnu.
* localedata: su_ID: make lang_name agree with CLDRMike FABIAN2024-01-091-1/+1
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* localedata: add new locale su_IDMike FABIAN2024-01-092-0/+165
| | | | Resolves: BZ # 27312
* localedata: add new locale zgh_MAMike FABIAN2024-01-093-0/+192
| | | | | | Resolves: BZ # 12908 https://iso639-3.sil.org/code/zgh
* INSTALL: regenerateMark Wielaard2024-01-091-7/+7
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* localedata: add tok/UTF-8 to SUPPORTEDMike FABIAN2024-01-091-0/+1
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* localedata: tok: add yY and nN to yesexpr and noexprMike FABIAN2024-01-091-2/+2
| | | | See: https://sourceware.org/bugzilla/show_bug.cgi?id=31221#c2
* localedata: tok: convert to UTF-8Mike FABIAN2024-01-091-3/+3
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* localedata: add data for tok (Toki Pona)Janet Blackquill2024-01-091-0/+154
| | | | | | | | | Resolves: BZ # 31221 glibc can recognise its code, but does not have its data. This patch remedies that. Signed-off-by: Janet Blackquill <uhhadd@gmail.com>
* Remove ia64-linux-gnuAdhemerval Zanella2024-01-08567-155609/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 6.7 removed ia64 from the official tree [1], following the general principle that a glibc port needs upstream support for the architecture in all the components it depends on (binutils, GCC, and the Linux kernel). Apart from the removal of sysdeps/ia64 and sysdeps/unix/sysv/linux/ia64, there are updates to various comments referencing ia64 for which removal of those references seemed appropriate. The configuration is removed from README and build-many-glibcs.py. The CONTRIBUTED-BY, elf/elf.h, manual/contrib.texi (the porting mention), *.po files, config.guess, and longlong.h are not changed. For Linux it allows cleanup some clone2 support on multiple files. The following bug can be closed as WONTFIX: BZ 22634 [2], BZ 14250 [3], BZ 21634 [4], BZ 10163 [5], BZ 16401 [6], and BZ 11585 [7]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ff221426d33db909f7159fdf620c3b052e2d1c [2] https://sourceware.org/bugzilla/show_bug.cgi?id=22634 [3] https://sourceware.org/bugzilla/show_bug.cgi?id=14250 [4] https://sourceware.org/bugzilla/show_bug.cgi?id=21634 [5] https://sourceware.org/bugzilla/show_bug.cgi?id=10163 [6] https://sourceware.org/bugzilla/show_bug.cgi?id=16401 [7] https://sourceware.org/bugzilla/show_bug.cgi?id=11585 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* localedata: dz_BT, bo_CN: convert to UTF-8Mike FABIAN2024-01-082-136/+136
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* localedata: dz_BT, bo_CN: Fix spelling of "phur bu" in both Tibetan and DzongkhaValery Ushakov2024-01-082-4/+4
| | | | Resolves: BZ # 31086
* localedata: bo_CN: Fix spelling errors in Tibetan dataValery Ushakov2024-01-081-20/+23
| | | | Resolves: BZ # 31086
* localedata: bo_CN: Fix incomplete edit in Tibetan yesexprValery Ushakov2024-01-081-1/+1
| | | | Resolves: BZ # 31086
* localedata: dz_BT: Fix spelling errors in Dzongha dataValery Ushakov2024-01-081-23/+23
| | | | Resolves: BZ # 31086
* localedata: unicode-gen: Remove redundant \s* from regexp, fix commentsMike FABIAN2024-01-082-5/+5
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* localedata: convert the remaining *_RU locales to UTF-8Mike FABIAN2024-01-086-264/+264
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* Incorporate translationsAndreas K. Hüttel2024-01-0738-5109/+5428
| | | | Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
* x32: Handle displacement overflow in PLT rewrite [BZ #31218]H.J. Lu2024-01-064-2/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PLT rewrite calculated displacement with ElfW(Addr) disp = value - branch_start - JMP32_INSN_SIZE; On x32, displacement from 0xf7fbe060 to 0x401030 was calculated as unsigned int disp = 0x401030 - 0xf7fbe060 - 5; with disp == 0x8442fcb and caused displacement overflow. The PLT entry was changed to: 0xf7fbe060 <+0>: e9 cb 2f 44 08 jmp 0x401030 0xf7fbe065 <+5>: cc int3 0xf7fbe066 <+6>: cc int3 0xf7fbe067 <+7>: cc int3 0xf7fbe068 <+8>: cc int3 0xf7fbe069 <+9>: cc int3 0xf7fbe06a <+10>: cc int3 0xf7fbe06b <+11>: cc int3 0xf7fbe06c <+12>: cc int3 0xf7fbe06d <+13>: cc int3 0xf7fbe06e <+14>: cc int3 0xf7fbe06f <+15>: cc int3 x32 has 32-bit address range, but it doesn't wrap address around at 4GB, JMP target was changed to 0x100401030 (0xf7fbe060LL + 0x8442fcbLL + 5), which is above 4GB. Always use uint64_t to calculate displacement. This fixes BZ #31218. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
* x86: Fixup some nits in longjmp asm implementationNoah Goldstein2024-01-051-1/+1
| | | | Replace a stray `nop` with a `.p2align` directive.
* stdlib: Fix stdbit.h with -Wconversion for clangAdhemerval Zanella2024-01-051-11/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With clang 14 and also with main the tst-stdbit-Wconversion issues the warnings: ../stdlib/stdbit.h:701:40: error: implicit conversion loses integer precision: 'int' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wimplicit-int-conversion] return __x == 0 ? 0 : ((uint16_t) 1) << (__bw16_inline (__x) - 1); ~~~~~~ ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h:707:39: error: implicit conversion loses integer precision: 'int' to 'uint8_t' (aka 'unsigned char') [-Werror,-Wimplicit-int-conversion] return __x == 0 ? 0 : ((uint8_t) 1) << (__bw8_inline (__x) - 1); ~~~~~~ ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h:751:40: error: implicit conversion loses integer precision: 'int' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wimplicit-int-conversion] return __x <= 1 ? 1 : ((uint16_t) 2) << (__bw16_inline (__x - 1) - 1); ~~~~~~ ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h:757:39: error: implicit conversion loses integer precision: 'int' to 'uint8_t' (aka 'unsigned char') [-Werror,-Wimplicit-int-conversion] return __x <= 1 ? 1 : ((uint8_t) 2) << (__bw8_inline (__x - 1) - 1); ~~~~~~ ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tst-stdbit-Wconversion.c:45:31: error: implicit conversion loses integer precision: 'unsigned short' to 'uint8_t' (aka 'unsigned char') [-Werror,-Wimplicit-int-conversion] (void) stdc_trailing_zeros (us); ~~~~~~~~~~~~~~~~~~~~~^~~ ../stdlib/stdbit.h:164:30: note: expanded from macro 'stdc_trailing_zeros' : stdc_trailing_zeros_uc (x)) ~~~~~~~~~~~~~~~~~~~~~~~~^~ ../stdlib/stdbit.h:191:52: note: expanded from macro 'stdc_trailing_zeros_uc' # define stdc_trailing_zeros_uc(x) (__ctz8_inline (x)) ~~~~~~~~~~~~~ ^ tst-stdbit-Wconversion.c:46:31: error: implicit conversion loses integer precision: 'unsigned int' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wimplicit-int-conversion] (void) stdc_trailing_zeros (ui); ~~~~~~~~~~~~~~~~~~~~~^~~ ../stdlib/stdbit.h:163:48: note: expanded from macro 'stdc_trailing_zeros' : sizeof (x) == 2 ? stdc_trailing_zeros_us (x) \ ~~~~~~~~~~~~~~~~~~~~~~~~^~ ../stdlib/stdbit.h:192:53: note: expanded from macro 'stdc_trailing_zeros_us' # define stdc_trailing_zeros_us(x) (__ctz16_inline (x)) ~~~~~~~~~~~~~~ ^ tst-stdbit-Wconversion.c:46:31: error: implicit conversion loses integer precision: 'unsigned int' to 'uint8_t' (aka 'unsigned char') [-Werror,-Wimplicit-int-conversion] (void) stdc_trailing_zeros (ui); ~~~~~~~~~~~~~~~~~~~~~^~~ ../stdlib/stdbit.h:164:30: note: expanded from macro 'stdc_trailing_zeros' : stdc_trailing_zeros_uc (x)) ~~~~~~~~~~~~~~~~~~~~~~~~^~ ../stdlib/stdbit.h:191:52: note: expanded from macro 'stdc_trailing_zeros_uc' # define stdc_trailing_zeros_uc(x) (__ctz8_inline (x)) ~~~~~~~~~~~~~ ^ tst-stdbit-Wconversion.c:47:31: error: implicit conversion loses integer precision: 'unsigned long' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wimplicit-int-conversion] (void) stdc_trailing_zeros (ul); ~~~~~~~~~~~~~~~~~~~~~^~~ ../stdlib/stdbit.h:163:48: note: expanded from macro 'stdc_trailing_zeros' : sizeof (x) == 2 ? stdc_trailing_zeros_us (x) \ ~~~~~~~~~~~~~~~~~~~~~~~~^~ ../stdlib/stdbit.h:192:53: note: expanded from macro 'stdc_trailing_zeros_us' # define stdc_trailing_zeros_us(x) (__ctz16_inline (x)) ~~~~~~~~~~~~~~ ^ [...] It seems to boiler down to __builtin_clz not having a variant for 8 or 16 bits. Fix it by explicit casting to the expected types. Although not strickly required for older gcc, using the same __pacify macro simpify the required code. Checked on x86_64-linux-gnu and i686-linux-gnu.
* stdlib: Fix stdbit.h with -Wconversion for older gccAdhemerval Zanella2024-01-051-8/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With gcc 6.5.0, 7.5.0, 8.5.0, and 9.5.0 the tst-stdbit-Wconversion issues the warnings: ../stdlib/stdbit.h: In function ‘__clo16_inline’: ../stdlib/stdbit.h:128:26: error: conversion to ‘uint16_t {aka short unsigned int}’ from ‘int’ may alter its value [-Werror=conversion] return __clz16_inline (~__x); ^ ../stdlib/stdbit.h: In function ‘__clo8_inline’: ../stdlib/stdbit.h:134:25: error: conversion to ‘uint8_t {aka unsigned char}’ from ‘int’ may alter its value [-Werror=conversion] return __clz8_inline (~__x); ^ ../stdlib/stdbit.h: In function ‘__cto16_inline’: ../stdlib/stdbit.h:232:26: error: conversion to ‘uint16_t {aka short unsigned int}’ from ‘int’ may alter its value [-Werror=conversion] return __ctz16_inline (~__x); ^ ../stdlib/stdbit.h: In function ‘__cto8_inline’: ../stdlib/stdbit.h:238:25: error: conversion to ‘uint8_t {aka unsigned char}’ from ‘int’ may alter its value [-Werror=conversion] return __ctz8_inline (~__x); ^ ../stdlib/stdbit.h: In function ‘__bf16_inline’: ../stdlib/stdbit.h:701:23: error: conversion to ‘uint16_t {aka short unsigned int}’ from ‘int’ may alter its value [-Werror=conversion] return __x == 0 ? 0 : ((uint16_t) 1) << (__bw16_inline (__x) - 1); ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h: In function ‘__bf8_inline’: ../stdlib/stdbit.h:707:23: error: conversion to ‘uint8_t {aka unsigned char}’ from ‘int’ may alter its value [-Werror=conversion] return __x == 0 ? 0 : ((uint8_t) 1) << (__bw8_inline (__x) - 1); ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h: In function ‘__bc16_inline’: ../stdlib/stdbit.h:751:59: error: conversion to ‘uint16_t {aka short unsigned int}’ from ‘int’ may alter its value [-Werror=conversion] return __x <= 1 ? 1 : ((uint16_t) 2) << (__bw16_inline (__x - 1) - 1); ^~~ ../stdlib/stdbit.h:751:23: error: conversion to ‘uint16_t {aka short unsigned int}’ from ‘int’ may alter its value [-Werror=conversion] return __x <= 1 ? 1 : ((uint16_t) 2) << (__bw16_inline (__x - 1) - 1); ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../stdlib/stdbit.h: In function ‘__bc8_inline’: ../stdlib/stdbit.h:757:57: error: conversion to ‘uint8_t {aka unsigned char}’ from ‘int’ may alter its value [-Werror=conversion] return __x <= 1 ? 1 : ((uint8_t) 2) << (__bw8_inline (__x - 1) - 1); ^~~ ../stdlib/stdbit.h:757:23: error: conversion to ‘uint8_t {aka unsigned char}’ from ‘int’ may alter its value [-Werror=conversion] return __x <= 1 ? 1 : ((uint8_t) 2) << (__bw8_inline (__x - 1) - 1); It seems to boiler down to __builtin_clz not having a variant for 8 or 16 bits. Fix it by explicit casting to the expected types. Checked on x86_64-linux-gnu and i686-linux-gnu with gcc 9.5.0.
* elf: Add ELF_DYNAMIC_AFTER_RELOC to rewrite PLTH.J. Lu2024-01-0517-2/+451
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add ELF_DYNAMIC_AFTER_RELOC to allow target specific processing after relocation. For x86-64, add #define DT_X86_64_PLT (DT_LOPROC + 0) #define DT_X86_64_PLTSZ (DT_LOPROC + 1) #define DT_X86_64_PLTENT (DT_LOPROC + 3) 1. DT_X86_64_PLT: The address of the procedure linkage table. 2. DT_X86_64_PLTSZ: The total size, in bytes, of the procedure linkage table. 3. DT_X86_64_PLTENT: The size, in bytes, of a procedure linkage table entry. With the r_addend field of the R_X86_64_JUMP_SLOT relocation set to the memory offset of the indirect branch instruction. Define ELF_DYNAMIC_AFTER_RELOC for x86-64 to rewrite the PLT section with direct branch after relocation when the lazy binding is disabled. PLT rewrite is disabled by default since SELinux may disallow modifying code pages and ld.so can't detect it in all cases. Use $ export GLIBC_TUNABLES=glibc.cpu.plt_rewrite=1 to enable PLT rewrite with 32-bit direct jump at run-time or $ export GLIBC_TUNABLES=glibc.cpu.plt_rewrite=2 to enable PLT rewrite with 32-bit direct jump and on APX processors with 64-bit absolute jump at run-time. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
* aarch64: Make cpu-features definitions not Linux-specificSergey Bugaev2024-01-042-0/+0
| | | | | | | | | These describe generic AArch64 CPU features, and are not tied to a kernel-specific way of determining them. We can share them between the Linux and Hurd AArch64 ports. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-ID: <20240103171502.1358371-13-bugaevc@gmail.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-05 01:08:01 +0000