about summary refs log tree commit diff
path: root/sysdeps
Commit message (Collapse)AuthorAgeFilesLines
...
* Update MIPS libm-test-ulps.Joseph Myers2021-01-182-22/+24
|
* Update arm libm-test-ulps.Joseph Myers2021-01-181-11/+12
|
* Update powerpc-nofpu libm-test-ulps.Joseph Myers2021-01-181-16/+17
|
* Update hppa libm-test-ulpsJohn David Anglin2021-01-181-11/+12
|
* ARC: nofpu: Regenerate ulpsVineet Gupta2021-01-171-5/+6
|
* x86: Move x86 processor cache info to cpu_featuresH.J. Lu2021-01-145-412/+551
| | | | | | | | | | | 1. Move x86 processor cache info to _dl_x86_cpu_features in ld.so. 2. Update tunable bounds with TUNABLE_SET_WITH_BOUNDS. 3. Move x86 cache info initialization to dl-cacheinfo.h and initialize x86 cache info in init_cpu_features (). 4. Put x86 cache info for libc in cacheinfo.h, which is included in libc-start.c in libc.a and is included in cacheinfo.c in libc.so. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Fix x86 build with --enable-tunable=noAdhemerval Zanella2021-01-142-0/+2
| | | | Checked on x86_64-linux-gnu.
* ldconfig/x86: Store ISA level in cache and aux cacheH.J. Lu2021-01-1317-92/+412
| | | | | | | | | | | Store ISA level in the portion of the unused upper 32 bits of the hwcaps field in cache and the unused pad field in aux cache. ISA level is stored and checked only for shared objects in glibc-hwcaps subdirectories. The shared objects in the default directories aren't checked since there are no fallbacks for these shared objects. Tested on x86-64-v2, x86-64-v3 and x86-64-v4 machines with --disable-hardcoded-path-in-tests and --enable-hardcoded-path-in-tests.
* x86: Set header.feature_1 in TCB for always-on CET [BZ #27177]H.J. Lu2021-01-133-1/+11
| | | | | Update dl_cet_check() to set header.feature_1 in TCB when both IBT and SHSTK are always on.
* posix: consume less entropy on tempnameAdhemerval Zanella2021-01-121-3/+14
| | | | | | | | | | The first getrandom is used only for __GT_NOCREATE, which is inherently insecure and can use the entropy as a small improvement. On the second and later attempts it might help against DoS attacks. It sync with gnulib commit 854fbb81d91f7a0f2b463e7ace2499dee2f380f2. Checked on x86_64-linux-gnu.
* math: Add BZ#18980 fix back on dbl-64 coshAdhemerval Zanella2021-01-111-1/+2
| | | | | | | It is regression from 9e97f239eae1f2b1 (Remove dbl-64/wordsize-64 (part 2)) where is missed to add the BZ#18980 fix (9e97f239eae1f2b1). Checked on i686-linux-gnu.
* posix: Sync tempname with gnulib [BZ #26648]Adhemerval Zanella2021-01-111-116/+164
| | | | | | | | It syncs with gnulib commit b1268f22f443e8e4b9e. The try_tempname_len now uses getrandom on each iteration to get entropy and only uses the clock plus ASLR as source of entropy if getrandom fails. Checked on x86_64-linux-gnu and i686-linux-gnu.
* posix: Fix return value of system if shell can not be executed [BZ #27053]Adhemerval Zanella2021-01-111-0/+4
| | | | | | | | POSIX states that system returned code for failure to execute the shell shall be as if the shell had terminated using _exit(127). This behaviour was removed with 5fb7fc96350575. Checked on x86_64-linux-gnu.
* riscv: Initialize $gp before resolving the IRELATIVE relocationVincent Chen2021-01-101-1/+21
| | | | | | | The $gp register may be used to access the global variable in the PDE program, so the $gp register should be initialized before executing the IFUNC resolver of PDE program to avoid unexpected error occurs.
* riscv: support GNU indirect functionVincent Chen2021-01-102-0/+78
| | | | Enable riscv glibc to support GNU indirect function
* ARC: Regenerate ulpsVineet Gupta2021-01-081-4/+4
| | | | | | | | | | | | | Reinstate pass for FAIL: math/test-double-cosh FAIL: math/test-double-sinh FAIL: math/test-float32x-cosh FAIL: math/test-float32x-sinh FAIL: math/test-float64-cosh FAIL: math/test-float64-sinh FAIL: math/test-ldouble-cosh FAIL: math/test-ldouble-sinh
* aarch64: define PI_STATIC_AND_HIDDENSzabolcs Nagy2021-01-082-0/+9
| | | | | | | AArch64 always uses pc relative access to static and hidden object symbols, but the config setting was previously missing. This affects ld.so start up code.
* x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717]H.J. Lu2021-01-0719-93/+626
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA levels: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250 and -mneeded to emit GNU_PROPERTY_X86_ISA_1_NEEDED property with GNU_PROPERTY_X86_ISA_1_V[234] marker: https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13 Binutils support for GNU_PROPERTY_X86_ISA_1_V[234] marker were added by commit b0ab06937385e0ae25cebf1991787d64f439bf12 Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Oct 30 06:49:57 2020 -0700 x86: Support GNU_PROPERTY_X86_ISA_1_BASELINE marker and commit 32930e4edbc06bc6f10c435dbcc63131715df678 Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Oct 9 05:05:57 2020 -0700 x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker GNU_PROPERTY_X86_ISA_1_NEEDED property in x86 ELF binaries indicate the micro-architecture ISA level required to execute the binary. The marker must be added by programmers explicitly in one of 3 ways: 1. Pass -mneeded to GCC. 2. Add the marker in the linker inputs as this patch does. 3. Pass -z x86-64-v[234] to the linker. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] marker support to ld.so if binutils 2.32 or newer is used to build glibc: 1. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] markers to elf.h. 2. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] marker to abi-note.o based on the ISA level used to compile abi-note.o, assuming that the same ISA level is used to compile the whole glibc. 3. Add isa_1 to cpu_features to record the supported x86 ISA level. 4. Rename _dl_process_cet_property_note to _dl_process_property_note and add GNU_PROPERTY_X86_ISA_1_V[234] marker detection. 5. Update _rtld_main_check and _dl_open_check to check loaded objects with the incompatible ISA level. 6. Add a testcase to verify that dlopen an x86-64-v4 shared object fails on lesser platforms. 7. Use <get-isa-level.h> in dl-hwcaps-subdirs.c and tst-glibc-hwcaps.c. Tested under i686, x32 and x86-64 modes on x86-64-v2, x86-64-v3 and x86-64-v4 machines. Marked elf/tst-isa-level-1 with x86-64-v4, ran it on x86-64-v3 machine and got: [hjl@gnu-cfl-2 build-x86_64-linux]$ ./elf/tst-isa-level-1 ./elf/tst-isa-level-1: CPU ISA level is lower than required [hjl@gnu-cfl-2 build-x86_64-linux]$
* Remove dbl-64/wordsize-64 (part 2)Wilco Dijkstra2021-01-0740-1843/+422
| | | | | | | | Remove the wordsize-64 implementations by merging them into the main dbl-64 directory. The second patch just moves all wordsize-64 files and removes a few wordsize-64 uses in comments and Implies files. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Remove dbl-64/wordsize-64Wilco Dijkstra2021-01-074-4/+31
| | | | | | | | | | Remove the wordsize-64 implementations by merging them into the main dbl-64 directory. The first patch adds special cases needed for 32-bit targets (FIX_INT_FP_CONVERT_ZERO and FIX_DBL_LONG_CONVERT_OVERFLOW) to the wordsize-64 versions. This has no effect on 64-bit targets since they don't define these macros. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add SEGV_MTEAERR and SEGV_MTESERR from Linux 5.10.Joseph Myers2021-01-061-1/+5
| | | | | | | Linux 5.10 adds constants SEGV_MTEAERR and SEGV_MTESERR to asm-generic/siginfo.h. Add these to glibc's bits/siginfo-consts.h. Tested for x86_64.
* stdlib: Sync canonicalize with gnulib [BZ #10635] [BZ #26592] [BZ #26341] ↵Adhemerval Zanella2021-01-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | [BZ #24970] It sync with gnulib version ae9fb3d66. The testcase for BZ#23741 (stdlib/test-bz22786.c) is adjusted to check also for ENOMEM. The patch fixes multiple realpath issues: - Portability fixes for errno clobbering on free (BZ#10635). The function does not call free directly anymore, although it might be done through scratch_buffer_free. The free errno clobbering is being tracked by BZ#17924. - Pointer arithmetic overflows in realpath (BZ#26592). - Realpath cyclically call __alloca(path_max) to consume too much stack space (BZ#26341). - Realpath mishandles EOVERFLOW; stat not needed anyway (BZ#24970). The check is done through faccessat now. Checked on x86_64-linux-gnu and i686-linux-gnu.
* alpha: Provide wait4 for static library [BZ #27150]Adhemerval Zanella2021-01-051-0/+2
| | | | | | | | This ia regression from 09153638cfef91, versioned_symbol acts as weak_alias for !SHARED but it is undefined to avoid non versioned alias from the generic implementation. Checked with a build for alpha-linux-gnu.
* aarch64: push the set of rules before falling into slow pathShuo Wang2021-01-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is supposed to save the rules for the instructions before falling into slow path. Tested in glibc-2.28 before fixing: Thread 2 "xxxxxxx" hit Breakpoint 1, _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:149 149 stp x1, x2, [sp, #-32]! Missing separate debuginfos, use: dnf debuginfo-install libgcc-7.3.0-20190804.h24.aarch64 (gdb) ni _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:150 150 stp x3, x4, [sp, #16] (gdb) _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:157 157 mrs x4, tpidr_el0 (gdb) 158 ldr PTR_REG (1), [x0,#TLSDESC_ARG] (gdb) 159 ldr PTR_REG (0), [x4,#TCBHEAD_DTV] (gdb) 160 ldr PTR_REG (3), [x1,#TLSDESC_GEN_COUNT] (gdb) 161 ldr PTR_REG (2), [x0,#DTV_COUNTER] (gdb) 162 cmp PTR_REG (3), PTR_REG (2) (gdb) 163 b.hi 2f (gdb) 165 ldp PTR_REG (2), PTR_REG (3), [x1,#TLSDESC_MODID] (gdb) 166 add PTR_REG (0), PTR_REG (0), PTR_REG (2), lsl #(PTR_LOG_SIZE + 1) (gdb) 167 ldr PTR_REG (0), [x0] /* Load val member of DTV entry. */ (gdb) 168 cmp PTR_REG (0), #TLS_DTV_UNALLOCATED (gdb) 169 b.eq 2f (gdb) bt #0 _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:169 #1 0x0000ffffbe4fbb44 in OurFunction (threadId=4294967295) at /home/test/test_function.c:30 #2 0x0000000000400c08 in initaaa () at thread.c:58 #3 0x0000000000400c50 in thread_proc (param=0x0) at thread.c:71 #4 0x0000ffffbf6918bc in start_thread (arg=0xfffffffff29f) at pthread_create.c:486 #5 0x0000ffffbf5669ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78 (gdb) ni _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:184 184 stp x29, x30, [sp,#-16*NSAVEXREGPAIRS]! (gdb) bt #0 _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:184 #1 0x0000ffffbe4fbb44 in OurFunction (threadId=4294967295) at /home/test/test_function.c:30 #2 0x0000000000000000 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) Co-authored-by: liqingqing <liqingqing3@huawei.com>
* x86: Check IFUNC definition in unrelocated executable [BZ #20019]H.J. Lu2021-01-042-10/+22
| | | | | | Calling an IFUNC function defined in unrelocated executable also leads to segfault. Issue a fatal error message when calling IFUNC function defined in the unrelocated executable from a shared library.
* hurd: Fix mmap(!MAP_FIXED) on bogus addressSamuel Thibault2021-01-041-3/+6
| | | | | | | | In the !MAP_FIXED case, when a bogus address is given mmap should pick up a valide address rather than returning EINVAL: Posix only talks about EINVAL for the MAP_FIXED case. This fixes long-running ghc processes.
* x86-64: Avoid rep movsb with short distance [BZ #27130]H.J. Lu2021-01-041-0/+21
| | | | | | | | | | | | | | | | | When copying with "rep movsb", if the distance between source and destination is N*4GB + [1..63] with N >= 0, performance may be very slow. This patch updates memmove-vec-unaligned-erms.S for AVX and AVX512 versions with the distance in RCX: cmpl $63, %ecx // Don't use "rep movsb" if ECX <= 63 jbe L(Don't use rep movsb") Use "rep movsb" Benchtests data with bench-memcpy, bench-memcpy-large, bench-memcpy-random and bench-memcpy-walk on Skylake, Ice Lake and Tiger Lake show that its performance impact is within noise range as "rep movsb" is only used for data size >= 4KB.
* aarch64: fix stack missing after sp is updatedShuo Wang2021-01-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After sp is updated, the CFA offset should be set before next instruction. Tested in glibc-2.28: Thread 2 "xxxxxxx" hit Breakpoint 1, _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:149 149 stp x1, x2, [sp, #-32]! Missing separate debuginfos, use: dnf debuginfo-install libgcc-7.3.0-20190804.h24.aarch64 (gdb) bt #0 _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:149 #1 0x0000ffffbe4fbb44 in OurFunction (threadId=3194870184) at /home/test/test_function.c:30 #2 0x0000000000400c08 in initaaa () at thread.c:58 #3 0x0000000000400c50 in thread_proc (param=0x0) at thread.c:71 #4 0x0000ffffbf6918bc in start_thread (arg=0xfffffffff29f) at pthread_create.c:486 #5 0x0000ffffbf5669ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78 (gdb) ni _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:150 150 stp x3, x4, [sp, #16] (gdb) bt #0 _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:150 #1 0x0000ffffbe4fbb44 in OurFunction (threadId=3194870184) at /home/test/test_function.c:30 #2 0x0000000000000000 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) ni _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:157 157 mrs x4, tpidr_el0 (gdb) bt #0 _dl_tlsdesc_dynamic () at ../sysdeps/aarch64/dl-tlsdesc.S:157 #1 0x0000ffffbe4fbb44 in OurFunction (threadId=3194870184) at /home/test/test_function.c:30 #2 0x0000000000400c08 in initaaa () at thread.c:58 #3 0x0000000000400c50 in thread_proc (param=0x0) at thread.c:71 #4 0x0000ffffbf6918bc in start_thread (arg=0xfffffffff29f) at pthread_create.c:486 #5 0x0000ffffbf5669ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78 Signed-off-by: liqingqing <liqingqing3@huawei.com> Signed-off-by: Shuo Wang <wangshuo47@huawei.com>
* Drop nan-pseudo-number.h usage from testsSiddhesh Poyarekar2021-01-042-4/+1
| | | | | | | | | | Make the tests use TEST_COND_intel96 to decide on whether to build the unnormal tests instead of the macro in nan-pseudo-number.h and then drop the header inclusion. This unbreaks test runs on all architectures that do not have ldbl-96. Also drop the HANDLE_PSEUDO_NUMBERS macro since it is not used anywhere.
* Move generic nan-pseudo-number.h to ldbl-96Siddhesh Poyarekar2021-01-041-0/+0
| | | | | The concept of pseudo number formats only exists in the realm of the 96 bit long double format.
* Update copyright dates not handled by scripts/update-copyrights.Paul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | I've updated copyright dates in glibc for 2021. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. As well as the usual annual updates, mainly dates in --version output (minus csu/version.c which previously had to be handled manually but is now successfully updated by update-copyrights), there is a small change to the copyright notice in NEWS which should let NEWS get updated automatically next year. Please remember to include 2021 in the dates for any new files added in future (which means updating any existing uncommitted patches you have that add new files to use the new copyright dates in them).
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-026216-6216/+6216
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* aarch64: use PTR_ARG and SIZE_ARG instead of DELOUSESzabolcs Nagy2020-12-3128-75/+74
| | | | | | | | | | | | | | | DELOUSE was added to asm code to make them compatible with non-LP64 ABIs, but it is an unfortunate name and the code was not compatible with ABIs where pointer and size_t are different. Glibc currently only supports the LP64 ABI so these macros are not really needed or tested, but for now the name is changed to be more meaningful instead of removing them completely. Some DELOUSE macros were dropped: clone, strlen and strnlen used it unnecessarily. The out of tree ILP32 patches are currently not maintained and will likely need a rework to rebase them on top of the time64 changes.
* powerpc: Use scv instruction on clone when availableMatheus Castanho2020-12-301-3/+30
| | | | | | | | | | clone already uses r31 to temporarily save input arguments before doing the syscall, so we use a different register to read from the TCB. We can also avoid allocating another stack frame, which is not needed since we can simply extend the usage of the red zone. Tested-by: Lucas A. M. Magalhães <lamm@linux.ibm.com> Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* powerpc: Runtime selection between sc and scv for syscallsMatheus Castanho2020-12-306-40/+214
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux kernel v5.9 added support for system calls using the scv instruction for POWER9 and later. The new codepath provides better performance (see below) if compared to using sc. For the foreseeable future, both sc and scv mechanisms will co-exist, so this patch enables glibc to do a runtime check and use scv when it is available. Before issuing the system call to the kernel, we check hwcap2 in the TCB for PPC_FEATURE2_SCV to see if scv is supported by the kernel. If not, we fallback to sc and keep the old behavior. The kernel implements a different error return convention for scv, so when returning from a system call we need to handle the return value differently depending on the instruction we used to enter the kernel. For syscalls implemented in ASM, entry and exit are implemented by different macros (PSEUDO and PSEUDO_RET, resp.), which may be used in sequence (e.g. for templated syscalls) or with other instructions in between (e.g. clone). To avoid accessing the TCB a second time on PSEUDO_RET to check which instruction we used, the value read from hwcap2 is cached on a non-volatile register. This is not needed when using INTERNAL_SYSCALL macro, since entry and exit are bundled into the same inline asm directive. The dynamic loader may issue syscalls before the TCB has been setup so it always uses sc with no extra checks. For the static case, there is no compile-time way to determine if we are inside startup code, so we also check the value of the thread pointer before effectively accessing the TCB. For such situations in which the availability of scv cannot be determined, sc is always used. Support for scv in syscalls implemented in their own ASM file (clone and vfork) will be added later. For now simply use sc as before. Average performance over 1M calls for each syscall "type": - stat: C wrapper calling INTERNAL_SYSCALL - getpid: templated ASM syscall - syscall: call to gettid using syscall function Standard: stat : 1.573445 us / ~3619 cycles getpid : 0.164986 us / ~379 cycles syscall : 0.162743 us / ~374 cycles With scv: stat : 1.537049 us / ~3535 cycles <~ -84 cycles / -2.32% getpid : 0.109923 us / ~253 cycles <~ -126 cycles / -33.25% syscall : 0.116410 us / ~268 cycles <~ -106 cycles / -28.34% Tested on powerpc, powerpc64, powerpc64le (with and without scv) Tested-by: Lucas A. M. Magalhães <lamm@linux.ibm.com> Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* x86 long double: Consider pseudo numbers as signalingSiddhesh Poyarekar2020-12-303-3/+69
| | | | | | | Add support to treat pseudo-numbers specially and implement x86 version to consider all of them as signaling. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* io: Remove xmknod{at} implementationsAdhemerval Zanella2020-12-294-60/+3
| | | | | | | | | | With xmknod wrapper functions removed (589260cef8), the mknod functions are now properly exported, and version is done using symbols versioning instead of the extra _MKNOD_* argument. It also allows us to consolidate Linux and Hurd mknod implementation. Reviewed-by: Lukasz Majewski <lukma@denx.de>
* io: Remove xstat implementationsAdhemerval Zanella2020-12-292-2/+6
| | | | | | | | With xstat wrapper functions removed (8ed005daf0), the stat functions are now properly exported, and version is done using symbols versioning instead of the extra _STAT_* argument. Reviewed-by: Lukasz Majewski <lukma@denx.de>
* hurd: Add WSTOPPED/WCONTINUED/WEXITED/WNOWAIT support [BZ #23091]Samuel Thibault2020-12-281-10/+30
| | | | | | The new __proc_waitid RPC now expects WEXITED to be passed, allowing to properly implement waitid, and thus define the missing W* macros (according to FreeBSD values).
* hurd: set sigaction for signal preemptors in arch-independent fileSamuel Thibault2020-12-261-15/+2
| | | | | | Instead of having the arch-specific trampoline setup code detect whether preemption happened or not, we'd rather pass it the sigaction. In the future, this may also allow to change sa_flags from post_signal().
* hurd: Fix spawni SPAWN_XFLAGS_TRY_SHELL with empty argvSamuel Thibault2020-12-261-1/+5
| | | | | When argv is empty, we need to add the original script to be run on the shell command line.
* hurd: Try shell in posix_spawn* only in compat modeSamuel Thibault2020-12-261-1/+1
| | | | Reported by Bruno Haible <bruno@clisp.org>
* Remove _ISOMAC check from <cpu-features.h>H.J. Lu2020-12-241-81/+75
| | | | | Remove _ISOMAC check from <cpu-features.h> since it isn't an installer header file.
* x86: Remove the duplicated CPU_FEATURE_CPU_PH.J. Lu2020-12-241-2/+0
| | | | | CPU_FEATURE_CPU_P is defined in sysdeps/x86/sys/platform/x86.h. Remove the duplicated CPU_FEATURE_CPU_P in sysdeps/x86/include/cpu-features.h.
* Partially revert 681900d29683722b1cb0a8e565a0585846ec5a61Siddhesh Poyarekar2020-12-242-12/+1
| | | | | | | | | Do not attempt to fix the significand top bit in long double input received in printf. The code should never reach here because isnan should now detect unnormals as NaN. This is already a NOP for glibc since it uses the gcc __builtin_isnan, which detects unnormals as NaN. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* x86 long double: Support pseudo numbers in isnanlSiddhesh Poyarekar2020-12-242-6/+7
| | | | | | | This syncs up isnanl behaviour with gcc. Also move the isnanl implementation to sysdeps/x86 and remove the sysdeps/x86_64 version. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86 long double: Support pseudo numbers in fpclassifylSiddhesh Poyarekar2020-12-242-2/+4
| | | | | | | | Also move sysdeps/i386/fpu/s_fpclassifyl.c to sysdeps/x86/fpu/s_fpclassifyl.c and remove sysdeps/x86_64/fpu/s_fpclassifyl.c Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* s390x: Regenerate ulpsFlorian Weimer2020-12-221-10/+12
| | | | | For new inputs added in commit cad5ad81d2f7f58a7ad0d8afa8c1b710, as seen on a z13 system.
* powerpc: Regenerate ulpsFlorian Weimer2020-12-221-12/+13
| | | | | For new inputs added in commit cad5ad81d2f7f58a7ad0d8afa8c1b710, as seen on a POWER8 system.
* <sys/platform/x86.h>: Add Intel LAM supportH.J. Lu2020-12-222-0/+4
| | | | | | | | Add Intel Linear Address Masking (LAM) support to <sys/platform/x86.h>. HAS_CPU_FEATURE (LAM) can be used to detect if LAM is enabled in CPU. LAM modifies the checking that is applied to 64-bit linear addresses, allowing software to use of the untranslated address bits for metadata.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-20 20:51:49 +0000