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* elf: Remove prelink supportAdhemerval Zanella2022-02-1013-275/+61
| | | | | | | | | | | | | Prelinked binaries and libraries still work, the dynamic tags DT_GNU_PRELINKED, DT_GNU_LIBLIST, DT_GNU_CONFLICT just ignored (meaning the process is reallocated as default). The loader environment variable TRACE_PRELINKING is also removed, since it used solely on prelink. Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Linux: Consolidate auxiliary vector parsingFlorian Weimer2022-02-105-105/+103
| | | | | | | | | | | | | | | | | | | | And optimize it slightly. The large switch statement in _dl_sysdep_start can be replaced with a large array. This reduces source code and binary size. On i686-linux-gnu: Before: text data bss dec hex filename 7791 12 0 7803 1e7b elf/dl-sysdep.os After: text data bss dec hex filename 7135 12 0 7147 1beb elf/dl-sysdep.os Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Assume that NEED_DL_SYSINFO_DSO is always definedFlorian Weimer2022-02-102-9/+3
| | | | | | The definition itself is still needed for generic code. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Remove DL_FIND_ARG_COMPONENTSFlorian Weimer2022-02-101-15/+10
| | | | | | | The generic definition is always used since the Native Client port has been removed. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Remove HAVE_AUX_SECURE, HAVE_AUX_XID, HAVE_AUX_PAGESIZEFlorian Weimer2022-02-102-66/+1
| | | | | | They are always defined. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* elf: Merge dl-sysdep.c into the Linux versionFlorian Weimer2022-02-101-12/+335
| | | | | | | The generic version is the de-facto Linux implementation. It requires an auxiliary vector, so Hurd does not use it. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* hppa: Fix bind-now audit (BZ #28857)Adhemerval Zanella2022-02-091-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | On hppa, a function pointer returned by la_symbind is actually a function descriptor has the plabel bit set (bit 30). This must be cleared to get the actual address of the descriptor. If the descriptor has been bound, the first word of the descriptor is the physical address of theA function, otherwise, the first word of the descriptor points to a trampoline in the PLT. This patch also adds a workaround on tests because on hppa (and it seems to be the only ABI I have see it), some shared library adds a dynamic PLT relocation to am empty symbol name: $ readelf -r elf/tst-audit25mod1.so [...] Relocation section '.rela.plt' at offset 0x464 contains 6 entries: Offset Info Type Sym.Value Sym. Name + Addend 00002008 00000081 R_PARISC_IPLT 508 [...] It breaks some assumptions on the test, where a symbol with an empty name ("") is passed on la_symbind. Checked on x86_64-linux-gnu and hppa-linux-gnu.
* x86-64: Optimize bzeroH.J. Lu2022-02-0810-25/+256
| | | | | | | | | | memset with zero as the value to set is by far the majority value (99%+ for Python3 and GCC). bzero can be slightly more optimized for this case by using a zero-idiom xor for broadcasting the set value to a register (vector or GPR). Co-developed-by: Noah Goldstein <goldstein.w.n@gmail.com>
* linux: fix accuracy of get_nprocs and get_nprocs_conf [BZ #28865]Dmitry V. Levin2022-02-071-31/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | get_nprocs() and get_nprocs_conf() use various methods to obtain an accurate number of processors. Re-introduce __get_nprocs_sched() as a source of information, and fix the order in which these methods are used to return the most accurate information. The primary source of information used in both functions remains unchanged. This also changes __get_nprocs_sched() error return value from 2 to 0, but all its users are already prepared to handle that. Old fallback order: get_nprocs: /sys/devices/system/cpu/online -> /proc/stat -> 2 get_nprocs_conf: /sys/devices/system/cpu/ -> /proc/stat -> 2 New fallback order: get_nprocs: /sys/devices/system/cpu/online -> /proc/stat -> sched_getaffinity -> 2 get_nprocs_conf: /sys/devices/system/cpu/ -> /proc/stat -> sched_getaffinity -> 2 Fixes: 342298278e ("linux: Revert the use of sched_getaffinity on get_nproc") Closes: BZ #28865 Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86: Remove SSSE3 instruction for broadcast in memset.S (SSE2 Only)Noah Goldstein2022-02-071-3/+4
| | | | | | | | | | | commit b62ace2740a106222e124cc86956448fa07abf4d Author: Noah Goldstein <goldstein.w.n@gmail.com> Date: Sun Feb 6 00:54:18 2022 -0600 x86: Improve vec generation in memset-vec-unaligned-erms.S Revert usage of 'pshufb' in broadcast logic as it is an SSSE3 instruction and memset.S is restricted to only SSE2 instructions.
* x86: Improve vec generation in memset-vec-unaligned-erms.SNoah Goldstein2022-02-065-87/+152
| | | | | | | | | | | | | | | | | | | | | | | | | No bug. Split vec generation into multiple steps. This allows the broadcast in AVX2 to use 'xmm' registers for the L(less_vec) case. This saves an expensive lane-cross instruction and removes the need for 'vzeroupper'. For SSE2 replace 2x 'punpck' instructions with zero-idiom 'pxor' for byte broadcast. Results for memset-avx2 small (geomean of N = 20 benchset runs). size, New Time, Old Time, New / Old 0, 4.100, 3.831, 0.934 1, 5.074, 4.399, 0.867 2, 4.433, 4.411, 0.995 4, 4.487, 4.415, 0.984 8, 4.454, 4.396, 0.987 16, 4.502, 4.443, 0.987 All relevant string/wcsmbs tests are passing. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector tan/tanf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector tan/tanf and input files to libmvec microbenchmark. libmvec-tan-inputs: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 5.0 10% uniform random distribution in range (-1000.0, 1000.0) libmvec-tanf-inputs: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 5.0f 10% uniform random distribution in range (-1000.0f, 1000.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector erfc/erfcf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector erfc/erfcf and input files to libmvec microbenchmark. libmvec-erfc-inputs: 90% Normal random distribution range: (-6.0, 6.0) mean: 0.0 sigma: 1.0 10% uniform random distribution in range (-5.9, 5.9) libmvec-erfcf-inputs: 90% Normal random distribution range: (-4.0f, 4.0f) mean: 0.0f sigma: 1.0f 10% uniform random distribution in range (-3.9f, 3.9f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector asinh/asinhf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector asinh/asinhf and input files to libmvec microbenchmark. libmvec-asinh-inputs: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 2.0 10% uniform random distribution in range (-1.0e6, 1.0e6) libmvec-asinhf-inputs: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 2.0f 10% uniform random distribution in range (-1.0e6f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector tanh/tanhf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector tanh/tanhf and input files to libmvec microbenchmark. libmvec-tanh-inputs: 90% Normal random distribution range: (-19.0, 19.0) mean: 0.0 sigma: 2.0 10% uniform random distribution in range (-16.0, 16.0) libmvec-tanhf-inputs: 90% Normal random distribution range: (-10.0f, 10.0f) mean: 0.0f sigma: 2.0f 10% uniform random distribution in range (-8.0f, 8.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector erf/erff to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector erf/erff and input files to libmvec microbenchmark. libmvec-erf-inputs: 90% Normal random distribution range: (-6.0, 6.0) mean: 0.0 sigma: 1.0 10% uniform random distribution in range (-5.9, 5.9) libmvec-erff-inputs: 90% Normal random distribution range: (-4.0f, 4.0f) mean: 0.0f sigma: 1.0f 10% uniform random distribution in range (-3.9f, 3.9f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector acosh/acoshf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector acosh/acoshf and input files to libmvec microbenchmark. libmvec-acosh-inputs: 90% Normal random distribution range: (1.0, DBL_MAX) mean: 1.0 sigma: 8.0 10% uniform random distribution in range (1.0, 1.0e6) libmvec-acoshf-inputs: 90% Normal random distribution range: (1.0f, FLT_MAX) mean: 1.0f sigma: 4.0f 10% uniform random distribution in range (1.0f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector atanh/atanhf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector atanh/atanhf and input files to libmvec microbenchmark. libmvec-atanh-inputs: 90% Normal random distribution range: (-1.0, 1.0) mean: 0.0 sigma: 1.0 10% uniform random distribution in range (-1.0, 1.0) libmvec-atanhf-inputs: 90% Normal random distribution range: (-1.0f, 1.0f) mean: 0.0f sigma: 1.0f 10% uniform random distribution in range (-1.0f, 1.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector log1p/log1pf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector log1p/log1pf and input files to libmvec microbenchmark. libmvec-log1p-inputs: 70% Normal random distribution range: (-1.0, DBL_MAX) mean: 0.0 sigma: 50.0 30% uniform random distribution in range (-1.0, 1.0e6) libmvec-log1pf-inputs: 70% Normal random distribution range: (-1.0f, FLT_MAX) mean: 0.0f sigma: 50.0f 30% uniform random distribution in range (-1.0f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector log2/log2f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector log2/log2f and input files to libmvec microbenchmark. libmvec-log2-inputs: 70% Normal random distribution range: (0.0, DBL_MAX) mean: 1.0 sigma: 50.0 30% uniform random distribution in range (0.0, 1.0e6) libmvec-log2f-inputs: 70% Normal random distribution range: (0.0f, FLT_MAX) mean: 1.0f sigma: 50.0f 30% uniform random distribution in range (0.0f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector log10/log10f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector log10/log10f and input files to libmvec microbenchmark. libmvec-log10-inputs: 70% Normal random distribution range: (0.0, DBL_MAX) mean: 1.0 sigma: 50.0 30% uniform random distribution in range (0.0, 1.0e6) libmvec-log10f-inputs: 70% Normal random distribution range: (0.0f, FLT_MAX) mean: 1.0f sigma: 50.0f 30% uniform random distribution in range (0.0f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector atan2/atan2f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add vector atan2/atan2f and input files to libmvec microbenchmark. libmvec-atan2-inputs: arg1: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 4.0 10% uniform random distribution in range (-1.0e6, 1.0e6) arg2: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 4.0 10% uniform random distribution in range (-1.0e6, 1.0e6) libmvec-atan2f-inputs: arg1: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 4.0f 10% uniform random distribution in range (-1.0e6f, 1.0e6f) arg2: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 4.0f 10% uniform random distribution in range (-1.0e6f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector cbrt/cbrtf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector cbrt/cbrtf and input files to libmvec microbenchmark. libmvec-cbrt-inputs: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 10.0 10% uniform random distribution in range (-1000.0, 1000.0) libmvec-cbrtf-inputs: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 10.0f 10% uniform random distribution in range (-1000.0f, 1000.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector sinh/sinhf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector sinh/sinhf and input files to libmvec microbenchmark. libmvec-sinh-inputs: 90% Normal random distribution range: (-710.0, 710.0) mean: 0.0 sigma: 32.0 10% uniform random distribution in range (-500.0, 500.0) libmvec-sinhf-inputs: 90% Normal random distribution range: (-89.0f, 89.0f) mean: 0.0f sigma: 16.0f 10% uniform random distribution in range (-50.0f, 50.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector expm1/expm1f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector expm1/expm1f and input files to libmvec microbenchmark. libmvec-expm1-inputs: 90% Normal random distribution range: (-708.0, 709.0) mean: 0.0 sigma: 16.0 10% uniform random distribution in range (-500.0, 500.0) libmvec-expm1f-inputs: 90% Normal random distribution range: (-87.0f, 88.0f) mean: 0.0f sigma: 8.0f 10% uniform random distribution in range (-50.0f, 50.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector cosh/coshf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector cosh/coshf and input files to libmvec microbenchmark. libmvec-cosh-inputs: 90% Normal random distribution range: (-710.0, 710.0) mean: 0.0 sigma: 32.0 10% uniform random distribution in range (-500.0, 500.0) libmvec-coshf-inputs: 90% Normal random distribution range: (-89.0f, 89.0f) mean: 0.0f sigma: 16.0f 10% uniform random distribution in range (-50.0f, 50.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector exp10/exp10f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector exp10/exp10f and input files to libmvec microbenchmark. libmvec-exp10-inputs: 90% Normal random distribution range: (-307.0, 308.0) mean: 0.0 sigma: 16.0 10% uniform random distribution in range (-250.0, 250.0) libmvec-exp10f-inputs: 90% Normal random distribution range: (-37.0f, 38.0f) mean: 0.0f sigma: 8.0f 10% uniform random distribution in range (-25.0f, 25.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector exp2/exp2f to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector exp2/exp2f and input files to libmvec microbenchmark. libmvec-exp2-inputs: 90% Normal random distribution range: (-1022.0, 1024.0) mean: 0.0 sigma: 16.0 10% uniform random distribution in range (-1000.0, 1000.0) libmvec-exp2f-inputs: 90% Normal random distribution range: (-126.0f, 128.0f) mean: 0.0f sigma: 8.0f 10% uniform random distribution in range (-100.0f, 100.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector hypot/hypotf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add vector hypot/hypotf and input files to libmvec microbenchmark. libmvec-hypot-inputs: arg1: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 10.0 10% uniform random distribution in range (-1000.0, 1000.0) arg1: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 10.0 10% uniform random distribution in range (-1000.0, 1000.0) libmvec-hypotf-inputs: arg1: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 10.0f 10% uniform random distribution in range (-1000.0f, 1000.0f) arg2: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 10.0f 10% uniform random distribution in range (-1000.0f, 1000.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector asin/asinf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector asin/asinf and input files to libmvec microbenchmark. libmvec-asin-inputs: 90% Normal random distribution range: (-1.0, 1.0) mean: 0.0 sigma: 1.0 10% uniform random distribution in range (-1.0, 1.0) libmvec-asinf-inputs: 90% Normal random distribution range: (-1.0f, 1.0f) mean: 0.0f sigma: 1.0f 10% uniform random distribution in range (-1.0f, 1.0f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86-64: Add vector atan/atanf to libmvec microbenchmarkSunil K Pandey2022-02-063-0/+8201
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add vector atan/atanf and input files to libmvec microbenchmark. libmvec-atan-inputs: arg1: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 4.0 10% uniform random distribution in range (-1.0e6, 1.0e6) arg2: 90% Normal random distribution range: (-DBL_MAX, DBL_MAX) mean: 0.0 sigma: 4.0 10% uniform random distribution in range (-1.0e6, 1.0e6) libmvec-atanf-inputs: arg1: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 4.0f 10% uniform random distribution in range (-1.0e6f, 1.0e6f) arg2: 90% Normal random distribution range: (-FLT_MAX, FLT_MAX) mean: 0.0f sigma: 4.0f 10% uniform random distribution in range (-1.0e6f, 1.0e6f) Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* x86_64/multiarch: Sort sysdep_routines and put one entry per lineH.J. Lu2022-02-051-114/+176
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* x86: Improve L to support L(XXX_SYMBOL (YYY, ZZZ))H.J. Lu2022-02-051-1/+2
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* x86-64: Fix strcmp-evex.SH.J. Lu2022-02-041-1/+1
| | | | | | | | | | Change "movl %edx, %rdx" to "movl %edx, %edx" in: commit 8418eb3ff4b781d31c4ed5dc6c0bd7356bc45db9 Author: Noah Goldstein <goldstein.w.n@gmail.com> Date: Mon Jan 10 15:35:39 2022 -0600 x86: Optimize strcmp-evex.S
* x86-64: Fix strcmp-avx2.SH.J. Lu2022-02-041-1/+1
| | | | | | | | | | Change "movl %edx, %rdx" to "movl %edx, %edx" in: commit b77b06e0e296f1a2276c27a67e1d44f2cfa38d45 Author: Noah Goldstein <goldstein.w.n@gmail.com> Date: Mon Jan 10 15:35:38 2022 -0600 x86: Optimize strcmp-avx2.S
* x86-64: Add vector acos/acosf to libmvec microbenchmarkSunil K Pandey2022-02-033-0/+8201
| | | | | | | | | | | | | | | | | | | | Add vector acos/acosf and input files to libmvec microbenchmark. libmvec-acos-inputs: 90% Normal random distribution range: (-1.0, 1.0) mean: 0.0 sigma: 1.0 10% uniform random distribution in range (-1.0, 1.0) libmvec-acosf-inputs: 90% Normal random distribution range: (-1.0f, 1.0f) mean: 0.0f sigma: 1.0f 10% uniform random distribution in range (-1.0f, 1.0f) Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
* x86: Optimize strcmp-evex.SNoah Goldstein2022-02-031-793/+919
| | | | | | | | | | | | | | | | | | Optimization are primarily to the loop logic and how the page cross logic interacts with the loop. The page cross logic is at times more expensive for short strings near the end of a page but not crossing the page. This is done to retest the page cross conditions with a non-faulty check and to improve the logic for entering the loop afterwards. This is only particular cases, however, and is general made up for by more than 10x improvements on the transition from the page cross -> loop case. The non-page cross cases as well are nearly universally improved. test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass. Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
* x86: Optimize strcmp-avx2.SNoah Goldstein2022-02-031-651/+939
| | | | | | | | | | | | | | | | | | | | Optimization are primarily to the loop logic and how the page cross logic interacts with the loop. The page cross logic is at times more expensive for short strings near the end of a page but not crossing the page. This is done to retest the page cross conditions with a non-faulty check and to improve the logic for entering the loop afterwards. This is only particular cases, however, and is general made up for by more than 10x improvements on the transition from the page cross -> loop case. The non-page cross cases are improved most for smaller sizes [0, 128] and go about even for (128, 4096]. The loop page cross logic is improved so some more significant speedup is seen there as well. test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass. Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
* linux: Fix missing __convert_scm_timestamps (BZ #28860)Adhemerval Zanella2022-02-031-2/+2
| | | | | | | | | Commit 948ce73b31 made recvmsg/recvmmsg to always call __convert_scm_timestamps for 64 bit time_t symbol, so adjust it to always build it for __TIMESIZE != 64. It fixes build for architecture with 32 bit time_t support when configured with minimum kernel of 5.1.
* linux: __get_nprocs_sched: do not feed CPU_COUNT_S with garbage [BZ #28850]Gleb Fotengauer-Malinovskiy2022-02-031-1/+1
| | | | | | | Pass the actual number of bytes returned by the kernel. Fixes: 33099d72e41c ("linux: Simplify get_nprocs") Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
* Regenerate configure.Carlos O'Donell2022-02-031-1/+7
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* Linux: Use ptrdiff_t for __rseq_offsetFlorian Weimer2022-02-0212-13/+14
| | | | | | | | This matches the data size initial-exec relocations use on most targets. Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* posix: Replace posix_spawnattr_tc{get,set}pgrp_np with ↵Adhemerval Zanella2022-02-0236-92/+57
| | | | | | | | | | | | | | | | | | posix_spawn_file_actions_addtcsetpgrp_np The posix_spawnattr_tcsetpgrp_np works on a file descriptor (the controlling terminal), so it would make more sense to actually fit it on the file actions API. Also, POSIX_SPAWN_TCSETPGROUP is not really required since it is implicit by the presence of tcsetpgrp file action. The posix/tst-spawn6.c is also fixed when TTY can is not present. Checked on x86_64-linux-gnu and i686-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* or1k: Define PI_STATIC_AND_HIDDENStafford Horne2022-02-022-0/+9
| | | | | | | | | | | PI_STATIC_AND_HIDDEN means that references to static functions, data and symbols with hidden visibility do not need any run-time relocations after the final link, with the build flags used by glibc. OpenRISC follows this so enabled PI_STATIC_AND_HIDDEN by adding configure.ac and generating configure. Suggested-by: Florian Weimer <fweimer@redhat.com>
* SET_RELHOOK: merge i386 and x86_64, and move to sysdeps/mach/hurd/x86Samuel Thibault2022-02-013-31/+3
| | | | | | | It is not Hurd-specific, but H.J. Lu wants it there. Also, dc.a can be used to avoid hardcoding .long vs .quad and thus use the same implementation for i386 and x86_64.
* elf: Fix runtime linker auditing on aarch64 (BZ #26643)Ben Woodard2022-02-0114-40/+773
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rtld audit support show two problems on aarch64: 1. _dl_runtime_resolve does not preserve x8, the indirect result location register, which might generate wrong result calls depending of the function signature. 2. The NEON Q registers pushed onto the stack by _dl_runtime_resolve were twice the size of D registers extracted from the stack frame by _dl_runtime_profile. While 2. might result in wrong information passed on the PLT tracing, 1. generates wrong runtime behaviour. The aarch64 rtld audit support is changed to: * Both La_aarch64_regs and La_aarch64_retval are expanded to include both x8 and the full sized NEON V registers, as defined by the ABI. * dl_runtime_profile needed to extract registers saved by _dl_runtime_resolve and put them into the new correctly sized La_aarch64_regs structure. * The LAV_CURRENT check is change to only accept new audit modules to avoid the undefined behavior of not save/restore x8. * Different than other architectures, audit modules older than LAV_CURRENT are rejected (both La_aarch64_regs and La_aarch64_retval changed their layout and there are no requirements to support multiple audit interface with the inherent aarch64 issues). * A new field is also reserved on both La_aarch64_regs and La_aarch64_retval to support variant pcs symbols. Similar to x86, a new La_aarch64_vector type to represent the NEON register is added on the La_aarch64_regs (so each type can be accessed directly). Since LAV_CURRENT was already bumped to support bind-now, there is no need to increase it again. Checked on aarch64-linux-gnu. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* elf: Issue la_symbind for bind-now (BZ #23734)Adhemerval Zanella2022-02-015-1/+52
| | | | | | | | | | | | | | | | | | | | | | | The audit symbind callback is not called for binaries built with -Wl,-z,now or when LD_BIND_NOW=1 is used, nor the PLT tracking callbacks (plt_enter and plt_exit) since this would change the expected program semantics (where no PLT is expected) and would have performance implications (such as for BZ#15533). LAV_CURRENT is also bumped to indicate the audit ABI change (where la_symbind flags are set by the loader to indicate no possible PLT trace). To handle powerpc64 ELFv1 function descriptor, _dl_audit_symbind requires to know whether bind-now is used so the symbol value is updated to function text segment instead of the OPD (for lazy binding this is done by PPC64_LOAD_FUNCPTR on _dl_runtime_resolve). Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, powerpc64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* elf: Fix initial-exec TLS access on audit modules (BZ #28096)Adhemerval Zanella2022-02-011-1/+1
| | | | | | | | | | | | | | | | | For audit modules and dependencies with initial-exec TLS, we can not set the initial TLS image on default loader initialization because it would already be set by the audit setup. However, subsequent thread creation would need to follow the default behaviour. This patch fixes it by setting l_auditing link_map field not only for the audit modules, but also for all its dependencies. This is used on _dl_allocate_tls_init to avoid the static TLS initialization at load time. Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* elf: Add <dl-r_debug.h>H.J. Lu2022-01-312-0/+100
| | | | | | | | Add <dl-r_debug.h> to get the adddress of the r_debug structure after relocation and its offset before relocation from the PT_DYNAMIC segment to support DT_DEBUG, DT_MIPS_RLD_MAP_REL and DT_MIPS_RLD_MAP. Co-developed-by: Xi Ruoyao <xry111@mengyan1223.wang>
* tst-socket-timestamp-compat.c: Check __TIMESIZE [BZ #28837]H.J. Lu2022-01-291-1/+1
| | | | | time_t size is defined by __TIMESIZE, not __WORDSIZE. Check __TIMESIZE, instead of __WORDSIZE, for time_t size. This fixes BZ #28837.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-24 03:47:19 +0000