about summary refs log tree commit diff
path: root/sysdeps
Commit message (Collapse)AuthorAgeFilesLines
* Fix libm fegetenv namespace (bug 17748).Joseph Myers2014-12-3117-18/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some C90 libm functions call fegetenv via libc_feholdsetround* functions in math_private.h. This patch makes them call __fegetenv instead, making fegetenv into a weak alias for __fegetenv as needed. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). Also tested for ARM (soft-float) that fegetenv failures disappear from the linknamespace test failures (however, similar fixes will also be needed for fegetround, feholdexcept, fesetenv, fesetround and feupdateenv before this set of namespace issues covered by bug 17748 is fully fixed and those linknamespace tests start passing). [BZ #17748] * include/fenv.h (__fegetenv): Use libm_hidden_proto. * math/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/aarch64/fpu/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/alpha/fpu/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/arm/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/hppa/fpu/fegetenv.c (fegetenv): Likewise. * sysdeps/i386/fpu/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/ia64/fpu/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/mips/fpu/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/powerpc/fpu/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/powerpc/nofpu/fegetenv.c (__fegetenv): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c (__fegetenv): Likewise. * sysdeps/s390/fpu/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/sh/sh4/fpu/fegetenv.c (fegetenv): Likewise. * sysdeps/sparc/fpu/fegetenv.c (__fegetenv): Use libm_hidden_def. * sysdeps/tile/math_private.h (__fegetenv): New inline function. * sysdeps/x86_64/fpu/fegetenv.c (fegetenv): Rename to __fegetenv and define as weak alias of __fegetenv. Use libm_hidden_weak. * sysdeps/generic/math_private.h (libc_feholdsetround_ctx): Use __fegetenv instead of fegetenv. (libc_feholdsetround_noex_ctx): Likewise.
* Add support for MIPS O32 FPXX and .MIPS.abiflagsMatthew Fortune2014-12-3117-1/+1912
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * elf/elf.h (PT_MIPS_ABIFLAGS): Define. (Elf_MIPS_ABIFlags_v0): New structure. (EF_MIPS_FP64): Define. (MIPS_AFL_REG_NONE, MIPS_AFL_REG_32, MIPS_AFL_REG_64): Likewise. (MIPS_AFL_REG_128, MIPS_AFL_ASE_DSP, MIPS_AFL_ASE_DSP64): Likewise. (MIPS_AFL_ASE_DSPR2, MIPS_AFL_ASE_EVA, MIPS_AFL_ASE_MCU): Likewise. (MIPS_AFL_ASE_MDMX, MIPS_AFL_ASE_MIPS3D, MIPS_AFL_ASE_MT): Likewise. (MIPS_AFL_ASE_SMARTMIPS, MIPS_AFL_ASE_VIRT): Likewise. (MIPS_AFL_ASE_VIRT64, MIPS_AFL_ASE_MSA, MIPS_AFL_ASE_MSA64): Likewise. (MIPS_AFL_ASE_MIPS16, MIPS_AFL_ASE_MICROMIPS): Likewise. (MIPS_AFL_ASE_XPA, MIPS_AFL_EXT_XLR, MIPS_AFL_EXT_OCTEON2): Likewise. (MIPS_AFL_EXT_OCTEONP, MIPS_AFL_EXT_LOONGSON_3A): Likewise. (MIPS_AFL_EXT_OCTEON, MIPS_AFL_EXT_5900, MIPS_AFL_EXT_4010): Likewise. (MIPS_AFL_EXT_4100, MIPS_AFL_EXT_3900, MIPS_AFL_EXT_10000): Likewise. (MIPS_AFL_EXT_SB1, MIPS_AFL_EXT_4111, MIPS_AFL_EXT_4120): Likewise. (MIPS_AFL_EXT_5400, MIPS_AFL_EXT_5500): Likewise. (MIPS_AFL_EXT_LOONGSON_2E, MIPS_AFL_EXT_LOONGSON_2F): Likewise. (Val_GNU_MIPS_ABI_FP_ANY, Val_GNU_MIPS_ABI_FP_DOUBLE): New enum values. (Val_GNU_MIPS_ABI_FP_SINGLE, Val_GNU_MIPS_ABI_FP_SOFT): Likewise. (Val_GNU_MIPS_ABI_FP_OLD_64, Val_GNU_MIPS_ABI_FP_XX): Likewise. (Val_GNU_MIPS_ABI_FP_64, Val_GNU_MIPS_ABI_FP_64A): Likewise. (Val_GNU_MIPS_ABI_FP_MAX): Likewise. * sysdeps/mips/Makefile [subdir=elf]: Add tst-abi-interlink, tst-mode-switch-1, tst-mode-switch-2, tst-mode-switch-3 tests. * sysdeps/mips/bits/linkmap.h (struct link_map_machine): Add fpmode field. * sysdeps/mips/dl-machine.h (elf_machine_matches_host): Reject EF_MIPS_FP64. * sysdeps/mips/dl-machine-reject-phdr.h: New file. * sysdeps/mips/tst-abi-fp32mod.c: Likewise. * sysdeps/mips/tst-abi-fpxxmod.c: Likewise. * sysdeps/mips/tst-abi-fpxxomod.c: Likewise. * sysdeps/mips/tst-abi-fp64mod.c: Likewise. * sysdeps/mips/tst-abi-fp64amod.c: Likewise. * sysdeps/mips/tst-abi-interlink.c: Likewise. * sysdeps/mips/tst-mode-switch-1.c: Likewise. * sysdeps/mips/tst-mode-switch-2.c: Likewise. * sysdeps/mips/tst-mode-switch-3.c: Likewise. * sysdeps/unix/sysv/linux/mips/configure.ac (o32-fpabi): Define to record the current FP ABI extension. (mips-mode-switch): Define to show if kernel headers support mode switching. * sysdeps/unix/sysv/linux/mips/configure: Regenerate. * sysdeps/unix/sysv/linux/mips/ldsodefs.h: Increase maximum supported SYSV ABI version to 3. * sysdeps/unix/sysv/linux/mips/libc-abis: Add new MIPS_O32_FP64 feature.
* powerpc: POWER7 strcpy optimization for unaligned stringsRajalakshmi Srinivasaraghavan2014-12-311-82/+245
| | | | | | | | | | | | | | | | This patch optimizes strcpy for ppc64/power7 for unaligned source or destination address. The source or destination address is aligned to doubleword and data is shifted based on the alignment and added with the previous loaded data to be written as a doubleword. For each load, cmpb instruction is used for faster null check. The word aligned optimization is also removed, since the new unaligned code path shows better results handling word-aligned strings. More combination of unaligned inputs is also added in benchtest to measure the improvement.The new optimization shows 2 to 80% of performance improvement for longer string though it does not show big difference on string size less than 16 due to additional checks.
* Clean up powerpc fegetround / __fegetround inlines.Joseph Myers2014-12-319-56/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The natural fix for some linknamespace test failures, where C90 libm functions call C99 <fenv.h> functions, is to make fe* into weak aliases for __fe* and call __fe* from within libm as needed. To do this, the __fe* names need to be available for that purpose - that is, they must not be used for something other than aliases of fe*. On powerpc, however, __fegetround is an inline function in fenv_libc.h, with no corresponding fegetround inline function; fegetround has an equivalent macro expansion in bits/fenvinline.h, but that is disabled if __NO_MATH_INLINES (which is defined for building libm). I see no need for that disabling; it's not even clear that __NO_MATH_INLINES should affect <fenv.h>, and the results of fegetround are completely defined so there is no semantic effect of that disabling at all outside glibc. The x86 inline feraiseexcept is conditioned on __USE_EXTERN_INLINES not __NO_MATH_INLINES (but that's an inline function rather than a macro). This patch removes the __NO_MATH_INLINES conditional on that fegetround macro, so resulting in it being expanded inline inside glibc. In turn, this means that direct calls to __fegetround from C99 functions in ldbl-128ibm can be changed to calls to fegetround, so that nofpu fenv_libc.h files don't need to define __fegetround at all and, by changing ldbl-128ibm files to use <fenv.h> not <fenv_libc.h>, non-e500 nofpu no longer needs an fenv_libc.h file. The other macros in fenvinline.h are left conditional on __NO_MATH_INLINES, although since the only case where this should make a difference is one involving undefined behavior (if the argument to the function is not a valid exception macro). The out-of-line definition for fegetround uses __fegetround (the inline function removed by this patch). So this continues to work, the fenvinline.h header is made to define __fegetround, and then to define fegetround to call __fegetround. Tested for powerpc32 (hard float) that installed stripped shared libraries are unchanged by this patch; also tested that powerpc-nofpu build still works. (This patch does not itself fix any bugs; it simply cleans things up in preparation for separate bug fixes.) * sysdeps/powerpc/bits/fenvinline.h (fegetround): Rename macro to __fegetround and redefine to call __fegetround. Remove condition on [!__NO_MATH_INLINES]. * sysdeps/powerpc/fpu/fenv_libc.h (__fegetround): Remove inline function. * sysdeps/powerpc/nofpu/fenv_libc.h: Remove file. * sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h (__fegetround): Remove macro. * sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: Include <fenv.h> instead of <fenv_libc.h>. (__llrintl): Call fegetround instead of __fegetround. * sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: Include <fenv.h> instead of <fenv_libc.h>. * sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: Likewise. (__lrintl): Call fegetround instead of __fegetround. * sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: Include <fenv.h> instead of <fenv_libc.h>. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise. (__rintl): Call fegetround instead of __fegetround.
* Don't check PI_STATIC_AND_HIDDEN in i386 dl-machine.hH.J. Lu2014-12-301-33/+0
| | | | | | | | | | PI_STATIC_AND_HIDDEN is always defined for i386. There is no need to check PI_STATIC_AND_HIDDEN in sysdeps/i386/dl-machine.h. [BZ #17775] * sysdeps/i386/dl-machine.h (PI_STATIC_AND_HIDDEN): Removed. (elf_machine_dynamic) [!PI_STATIC_AND_HIDDEN]: Likewise. (elf_machine_load_address) [!PI_STATIC_AND_HIDDEN]: Likewise.
* i386: Fix build by GCC 5.0Andrew Senkevich2014-12-302-4/+6
| | | | | | | | | | | | | | | | | | Fixed 3 "make check" failures on glibc 32bit built by gcc 5.0 due to EBX was enabled for allocation: https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00892.html Tests elf/tst-tls3, elf/tst-execstack-needed, elf/tst-execstack-prog were failed because EBX was used as PIC register. * sysdeps/i386/tls-macros.h: Include <features.h>. (TLS_LE): Use non-PIC version for GCC >= 5.0. (TLS_IE): Likewise. (TLS_LD): Likewise. (TLS_GD): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h (check_consistency): Don't define for GCC >= 5.0.
* Fix libm feraiseexcept namespace (bug 17723).Joseph Myers2014-12-3031-56/+127
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various C90 and UNIX98 libm functions call feraiseexcept, which is not in those standards. This causes linknamespace test failures - except on x86 / x86_64, where feraiseexcept is inline (for the relevant constant arguments) in bits/fenv.h. This patch fixes this by making those functions call __feraiseexcept instead. All changes are applied to all architectures rather than considering the possibility that some might not be needed in some cases (e.g. x86) as it seems most maintainable to keep architectures consistent. Where __feraiseexcept does not exist, it is added, with feraiseexcept made a weak alias; where it is a strong alias, it is made weak. libm_hidden_def / libm_hidden_proto are used with __feraiseexcept (this might in some cases improve code generation for existing calls to __feraiseexcept in some code on some architectures). Where there are dummy feraiseexcept macros (on architectures without floating-point exceptions support, to avoid compile errors from references to undefined FE_* macros), corresponding dummy __feraiseexcept macros are added. And on x86, to ensure __feraiseexcept calls still get inlined, the inline function in bits/fenv.h is refactored so that most of it can be reused in an inline __feraiseexcept in a separate include/bits/fenv.h. Calls are changed in C90/UNIX98 functions, but generally not in functions missing from those standards. They are also changed in libc_fe* functions (on the basis that those might be used in any libm function), and in feupdateenv (on the same basis - may be used, via default libc_*, in any libm function - of course feupdateenv will need changing to __feupdateenv in a subsequent patch to make that fully namespace-clean). No __feraiseexcept is added corresponding to the feraiseexcept in powerpc bits/fenvinline.h, because that macro definition is conditional on !defined __NO_MATH_INLINES, and glibc libm is built with -D__NO_MATH_INLINES, so changing internal calls to use __feraiseexcept should make no difference. Tested for x86_64 (testsuite; the only change in disassembly of installed shared libraries is a slight code reordering in clog10, of no apparent significance). Also tested for MIPS, where (in the configuration tested) it eliminates math.h linknamespace failures for n32 and n64 (some for o32 remain because of other issues). [BZ #17723] * include/fenv.h (__feraiseexcept): Use libm_hidden_proto. * math/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/aarch64/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/arm/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/hppa/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/i386/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/m68k/coldfire/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/microblaze/math_private.h (__feraiseexcept): New macro. * sysdeps/mips/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/powerpc/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/powerpc/nofpu/fraiseexcpt.c (__feraiseexcept): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/fraiseexcpt.c (__feraiseexcept): Likewise. * sysdeps/s390/fpu/fraiseexcpt.c (feraiseexcept): Rename to __feraiseexcept and define as weak alias of __feraiseexcept. Use libm_hidden_weak. * sysdeps/sh/sh4/fpu/fraiseexcpt.c (feraiseexcept): Likewise. * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. * sysdeps/tile/math_private.h (__feraiseexcept): New macro. * sysdeps/unix/sysv/linux/alpha/fraiseexcpt.S (__feraiseexcept): Use libm_hidden_def. * sysdeps/x86_64/fpu/fraiseexcpt.c (__feraiseexcept): Use libm_hidden_def. (feraiseexcept): Define as weak not strong alias. Use libm_hidden_weak. * sysdeps/x86/fpu/bits/fenv.h (__feraiseexcept_invalid_divbyzero): New inline function. Factored out of ... (feraiseexcept): ... here. Use __feraiseexcept_invalid_divbyzero. * sysdeps/x86/fpu/include/bits/fenv.h: New file. * math/e_scalb.c (invalid_fn): Call __feraiseexcept instead of feraiseexcept. * math/w_acos.c (__acos): Likewise. * math/w_asin.c (__asin): Likewise. * math/w_ilogb.c (__ilogb): Likewise. * math/w_j0.c (y0): Likewise. * math/w_j1.c (y1): Likewise. * math/w_jn.c (yn): Likewise. * math/w_log.c (__log): Likewise. * math/w_log10.c (__log10): Likewise. * sysdeps/aarch64/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/aarch64/fpu/math_private.h (libc_feupdateenv_test_aarch64): Likewise. * sysdeps/alpha/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/arm/fenv_private.h (libc_feupdateenv_test_vfp): Likewise. * sysdeps/arm/feupdateenv.c (feupdateenv): Likewise. * sysdeps/ia64/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/m68k/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/mips/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/powerpc/fpu/e_sqrt.c (__slow_ieee754_sqrt): Likewise. * sysdeps/s390/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sh/sh4/fpu/feupdateenv.c (feupdateenv): Likewise. * sysdeps/sparc/fpu/feupdateenv.c (__feupdateenv): Likewise.
* Replace %ld with %jd and cast to intmax_tH.J. Lu2014-12-301-4/+4
|
* i386: memcpy functions with SSE2 unaligned load/storeAndrew Senkevich2014-12-3013-3/+769
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These new memcpy functions are the 32-bit version of x86_64 SSE2 unaligned memcpy. Memcpy average performace benefit is 18% on Silvermont, other platforms also improved about 35%, benchmarked on Silvermont, Haswell, Ivy Bridge, Sandy Bridge and Westmere, performance results attached in https://sourceware.org/ml/libc-alpha/2014-07/msg00157.html * sysdeps/i386/i686/multiarch/bcopy-sse2-unaligned.S: New file. * sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S: Likewise. * sysdeps/i386/i686/multiarch/memmove-sse2-unaligned.S: Likewise. * sysdeps/i386/i686/multiarch/mempcpy-sse2-unaligned.S: Likewise. * sysdeps/i386/i686/multiarch/bcopy.S: Select the sse2_unaligned version if bit_Fast_Unaligned_Load is set. * sysdeps/i386/i686/multiarch/memcpy.S: Likewise. * sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise. * sysdeps/i386/i686/multiarch/memmove.S: Likewise. * sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise. * sysdeps/i386/i686/multiarch/mempcpy.S: Likewise. * sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise. * sysdeps/i386/i686/multiarch/Makefile (sysdep_routines): Add bcopy-sse2-unaligned, memcpy-sse2-unaligned, memmove-sse2-unaligned and mempcpy-sse2-unaligned. * sysdeps/i386/i686/multiarch/ifunc-impl-list.c (MAX_IFUNC): Set to 4. (__libc_ifunc_impl_list): Test __bcopy_sse2_unaligned, __memmove_chk_sse2_unaligned, __memmove_sse2_unaligned, __memcpy_chk_sse2_unaligned, __memcpy_sse2_unaligned, __mempcpy_chk_sse2_unaligned, and __mempcpy_sse2_unaligned.
* Fix a couple of -Wundef warnings.Chris Metcalf2014-12-291-1/+1
|
* tile: prefer inlines to macros in math_private.h.Chris Metcalf2014-12-291-4/+6
|
* Use posix-conf-vars.list to generate spec arraySiddhesh Poyarekar2014-12-291-1/+1
| | | | | | | | | | | | | | | | | | This patch adds support to generate the spec array in getconf from the conf.list. The generated code is mostly unchanged. the only changes are due to the change in layout of the spec and val arrays in the ELF. The val array can also be auto-generated from posix-conf-vars.list once the remaining macros are added to it. * posix/posix-conf-vars.list (SPEC:XBS5): Add sysconf prefix. * posix/confstr.c: Define NEED_SPEC_ARRAY to 0. * posix/posix-envs.def: Likewise. * sysdeps/posix/sysconf.c: Likewise. * posix/getconf.c: Define NEED_SPEC_ARRAY to 1. (specs): Remove array. * scripts/gen-posix-conf-vars.awk: Support generation of specs array.
* Add _POSIX namespace SYSCONF macros to posix-conf-vars.listSiddhesh Poyarekar2014-12-291-78/+80
| | | | | | | | This fixes the remaining -Wundef warnings. Tested on x86_64. * posix/posix-conf-vars.list: Add _POSIX sysconf namespace. * sysdeps/posix/sysconf.c: Include posix-conf-vars.h. (__sysconf): Use CONF_IS_* macros.
* tile: add no-op fe*() routines for libc internal useChris Metcalf2014-12-261-0/+4
| | | | | | | | | These avoid having tile generate real calls to the no-op functions, which then causes linknamespace test failures. It might make sense to factor all of these out into a common header that can be shared by tile, microblaze, etc., but for now just fix the test failures.
* linux/clock_settime: remove unnecessary vDSO definitionsChris Metcalf2014-12-261-9/+0
| | | | | | | | | | | | These definitions were added back before __ASSUME_POSIX_CPU_TIMERS was removed. There used to be a vsyscall to clock_getres() in maybe_syscall_settime_cpu(), but that function was removed in commit 26889eac. The presence of the vsyscall definitions means that platforms that don't provide clock_getres as a vsyscall hit a symbol redefinition warning in this file, becoming fatal with -Werror. Removing the vsyscall definitions is the obvious fix. No change to generated code on x86_64.
* tilegx: fix sysdep.h to avoid a redefinition warningChris Metcalf2014-12-261-3/+3
| | | | | | | | The symbol for HAVE_CLOCK_GETTIME_VSYSCALL was being only conditionally defined under [SHARED]. However, it turns out this causes a preprocessor symbol redefinition warning when building clock_gettime.o. Move the symbol definition down to make it unconditional, like other platforms do.
* tilegx32: avoid a a -Werror warning from unwindingChris Metcalf2014-12-261-1/+1
| | | | | | | The _Unwind_GetCFA() routine returns a 64-bit value, which we interpret as a pointer. Add an intermediate cast to long so that in ILP32 mode we don't get a warning about casting a wrong-sized integer to a pointer.
* tilegx: enable wordsize-64 support for ieee745 dbl-64.Chris Metcalf2014-12-231-0/+1
| | | | | | I missed this during the initial port. Some testing shows that enabling this mode does, unsurprisingly, yield some nice speedups on the math functions in question.
* Make __ASSUME_UTIMES hppa-specific.Joseph Myers2014-12-226-44/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes __ASSUME_UTIMES hppa-specific, removing mentions of the macro from architecture-independent code and code for other architectures. (All other architectures either have the utimes syscall in all relevant kernel versions, or use the asm-generic interface so only have utimensat and won't get the utimes syscall.) A similar approach is used to that used for futimesat for MicroBlaze: if the kernel is recent enough that the utimes syscall can be assumed to be present, use the implementation in terms of the utimes syscall, and otherwise use the linux/generic implementation in terms of utimensat. Tested x86_64 that the disassembly of installed shared libraries is unchanged by the patch. Not tested for hppa. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_UTIMES): Do not define. * sysdeps/unix/sysv/linux/utimes.c: Do not include <kernel-features.h>. (__utimes) [__NR_utimes]: Make code unconditional. (__utimes) [!__ASSUME_UTIMES]: Remove conditional code. * sysdeps/unix/sysv/linux/aarch64/kernel-features.h (__ASSUME_UTIMES): Do not undefine. * sysdeps/unix/sysv/linux/tile/kernel-features.h (__ASSUME_UTIMES): Likewise. * sysdeps/unix/sysv/linux/hppa/kernel-features.h (__ASSUME_UTIMES): Define for [__LINUX_KERNEL_VERSION >= 0x030e00] instead of undefining for [__LINUX_KERNEL_VERSION < 0x030e00]. * sysdeps/unix/sysv/linux/hppa/utimes.c: New file.
* Fix preprocessor indentation in sysdeps/mips/memcpy.S.Steve Ellcey2014-12-221-97/+97
| | | | Checked in as obvious.
* tilegx: remove implicit boolean conversion in strstr.Chris Metcalf2014-12-221-1/+1
| | | | | | | | [BZ #17746] The __builtin_expect() truncated a uint64_t to a 32-bit long in ILP32 mode, discarding the high 32 bits, and potentially missing the NUL terminator that we were searching for with SIMD operations. Explicitly compare to zero to fix the problem.
* 2014-12-22 Steve Ellcey <sellcey@imgtec.com>Steve Ellcey2014-12-221-0/+4
| | | | | * sysdeps/unix/mips/sysdep.h (__mips_isa_rev): Set to zero if not already defined.
* Split __kernel_standard* functions (fixes bug 17724).Joseph Myers2014-12-223-90/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug 17724 reports references to fesetround being brought in by ldbl-128ibm rintl via references to __rintl from __kernel_standard_l. Because all three __kernel_standard* functions are in the same file, this gets brought in even though only the long double version __kernel_standard_l needs __rintl, and the C90 functions use only __kernel_standard. This patch fixes this by splitting the three versions into separate files; it's fine for long double functions to refer to fe* functions directly, unless they get called by C90 double functions. Tested for x86_64 (testsuite; the reordering of code means disassembly of shared libraries can't usefully be compared). Tested for powerpc that the relevant issue disappears from the linknamespace test output. [BZ #17724] * sysdeps/ieee754/k_standard.c: Don't include <float.h>. (__kernel_standard_f): Remove. Moved to k_standardf.c. (__kernel_standard_l): Remove. Moved to k_standardl.c with (char *) casts added. * sysdeps/ieee754/k_standardf.c: New file. * sysdeps/ieee754/k_standardl.c: Likewise. * math/Makefile (libm-support): Remove k_standard. (libm-calls): Add k_standard.
* Call libc_fetestexcept_aarch64.Wilco Dijkstra2014-12-221-7/+2
|
* Call libc_fesetround_aarch64.Wilco Dijkstra2014-12-221-20/+5
|
* Fix resolver bind, getsockname namespace (bug 17733).Joseph Myers2014-12-222-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | On Linux architectures using socketcall, the resolver ends up bringing in strong symbols for bind and getsockname, which are not in POSIX.1-1996. This causes linknamespace test failures: FAIL: conform/POSIX/pthread.h/linknamespace FAIL: conform/POSIX/sched.h/linknamespace FAIL: conform/POSIX/time.h/linknamespace These functions are defined as strong symbols with __bind and __getsockname as weak aliases. This patch switches this to the other way round by removing the NO_WEAK_ALIAS definitions and so letting the default case in socket.S act; I see no reason for the existing arrangements. Tested for x86 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #17733] * sysdeps/unix/sysv/linux/bind.S (NO_WEAK_ALIAS): Do not define. (__bind): Do not define as weak alias. * sysdeps/unix/sysv/linux/getsockname.S (NO_WEAK_ALIAS): Do not define. (__getsockname): Do not define as weak alias.
* tile: separate ffsll from ffsChris Metcalf2014-12-212-11/+33
| | | | | This avoids a linknamespace failure when ffs is legal but ffsll is not.
* tile: remove localplt.data and use generic one again.Chris Metcalf2014-12-211-18/+0
| | | | With the __tls_get_addr removed, it works for tile.
* Add hidden __tls_get_addr/___tls_get_addr aliasH.J. Lu2014-12-215-15/+10
| | | | | | | | | | | | | | | | | | | | __tls_get_addr/___tls_get_addr is always defined in ld.so. There is no need to call them via PLT inside ld.so. This patch adds the hidden __tls_get_addr/___tls_get_addr aliases and calls them directly from _dl_tlsdesc_dynamic. There is no need to set up the EBX register in i386 _dl_tlsdesc_dynamic when calling the hidden ___tls_get_addr. * elf/dl-tls.c (__tls_get_addr): Provide the hidden definition if not defined. * sysdeps/i386/dl-tls.h (___tls_get_addr): Provide the hidden definition. * sysdeps/i386/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Call the hidden ___tls_get_addr. * sysdeps/x86_64/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Call the hidden __tls_get_addr. * sysdeps/generic/localplt.data (__tls_get_addr): Removed. * sysdeps/unix/sysv/linux/i386/localplt.data (___tls_get_addr): Likewise.
* m68k: remove @PLTPC from _dl_init callAndreas Schwab2014-12-211-1/+1
|
* Remove @PLT from "call _dl_init@PLT" in _dl_start_userH.J. Lu2014-12-212-2/+2
| | | | | | | | | | _dl_start_user in ld.so calls the local function _dl_init. There is no need to go through PLT. * sysdeps/i386/dl-machine.h (_dl_start_user): Remove @PLT from "call _dl_init@PLT". * sysdeps/x86_64/dl-machine.h (_dl_start_user): Likewise. from "call _dl_init@PLT".
* tile: provide localplt.data with __tls_get_addr optionalChris Metcalf2014-12-201-0/+18
|
* tilegx: fix strstr to build and link betterChris Metcalf2014-12-191-1/+2
| | | | | | | | The two_way_short_needle() routine included from str-two-way.h is not used, so mark it so to avoid compiler warnings. Calling strnlen() breaks linknamespace tests, so change it to __strnlen().
* Remove trailing white space.Steve Ellcey2014-12-191-1/+0
|
* 2014-12-19 Steve Ellcey <sellcey@imgtec.com>Steve Ellcey2014-12-196-0/+182
| | | | | | | | | | * sysdeps/mips/addmul_1.S (__mpn_addmul_1): Use mulu/muhu instead of multu on MIPSr6. * sysdeps/mips/mul_1.S (__mpn_mul_1): Ditto. * sysdeps/mips/submul_1.S (__mpn_submul_1): Ditto. * sysdeps/mips/mips64/addmul_1.S (__mpn_addmul_1): Ditto. * sysdeps/mips/mips64/mul_1.S (__mpn_mul_1): Ditto. * sysdeps/mips/mips64/submul_1.S (__mpn_submul_1): Ditto.
* 2014-12-19 Steve Ellcey <sellcey@imgtec.com>Steve Ellcey2014-12-192-4/+16
| | | | | | | | | | * sysdeps/mips/sys/asm.h (PTR_ADDU): Use addu on mips32r6/mips64r6. (PTR_ADDIU): Use addiu for mips32r6/mips64r6. (PTR_SUBU): Use subu for mips32r6/mips64r6. (PTR_SUBIU): Use subu for mips32r6/mips64r6 (subiu does not exist). * sysdeps/mips/machine-gmon.h (PTR_ADDU_STRING) Use addu for mips32r6/mips64r6. (PTR_SUBU_STRING) Use subu for mips32r6/mips64r6.
* Fix soft-fp build warning on sparc about strict aliasing.David S. Miller2014-12-191-6/+11
| | | | | * sysdeps/sparc/sparc32/soft-fp/q_neg.c (_Q_neg): Use a union to access the quad as both a long double and as a series of 4 words.
* Replace -Wno-error with -fno-builtin-lroundH.J. Lu2014-12-191-2/+2
|
* i386: Move futex functions from lowlevellock.h to lowlevellock-futex.h.Torvald Riegel2014-12-192-110/+157
|
* Use generic lowlevellock-futex.h in x86_64 lowlevellock.h.Torvald Riegel2014-12-192-120/+24
|
* sh: Remove custom lowlevellock, barrier, condvar, and rwlock implementations.Torvald Riegel2014-12-1919-5572/+0
|
* Compile s_llround.c with -Wno-error for x32 buildH.J. Lu2014-12-191-0/+6
| | | | | | Since x32 returns 32-bit long int and 64-bit long long int in the same 64-bit register, we make the 32b-bit lround an alias of the 64-bit llround. Add -Wno-error for x32 build to silence the compiler.
* Replace 1L with (mp_limb_t) 1H.J. Lu2014-12-191-1/+1
| | | | | | | | | | | | | | | X86-64 and x32 use sysdeps/i386/ldbl2mpn.c. res_ptr is a pointer to mp_limb_t, which is long for i386 and x86-64 and long long for x32. On x32, I got ../sysdeps/x86_64/../i386/ldbl2mpn.c: In function ‘__mpn_extract_long_double’: ../sysdeps/x86_64/../i386/ldbl2mpn.c:72:4: error: left shift count >= width of type [-Werror] res_ptr[N - 1] &= ~(1L << ((LDBL_MANT_DIG - 1) % BITS_PER_MP_LIMB)); ^ cc1: all warnings being treated as errors This patch replaces 1L with (mp_limb_t) 1. Verified on x32, i686 and x86-64 with GCC 4.8.3.
* NPTL: Move fork state variables to initializer files.Roland McGrath2014-12-171-8/+0
|
* NPTL: Remove gratuitous Linuxisms from gai_misc.h.Roland McGrath2014-12-171-6/+6
|
* Fix profil_counter namespace (bug 17725).Joseph Myers2014-12-1714-20/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On ARM, where profil_counter is not static, it is brought in by references to various standard functions, as noted in <https://sourceware.org/ml/libc-alpha/2014-11/msg00890.html>, although it is not a standard function itself. I don't know if this also causes test failures on SPARC, although I see no reason for it not to do so. This patch fixes this namespace issue. profil_counter is renamed to __profil_counter and made a weak alias on ARM and SPARC. Because of the uses in profil.c / sprofil.c it seems simplest to make the rename globally, including on the other architectures for which profil_counter was static and so the change is of no substance. The variant names profil_counter_* used in sprofil.c are also renamed to start with __ so that undesired function names do not get exported in static libc. As I noted in bug 17726, profil_counter should probably be a compat symbol on ARM and SPARC, so it wouldn't exist at all in static libc even as a weak alias. Since defining a compat symbol still requires an internal name as a target of an alias, this patch still seems reasonable as an intermediate step towards that goal: it wouldn't be possible for the function simply to be static profil_counter on ARM and SPARC with profil_counter also being the exported compat symbol name, so profil.c / sprofil.c would still need to be prepared to call the function under another name (here, __profil_counter). Tested for x86_64 (testsuite, and that stripped installed shared libraries are unchanged by the patch) and ARM (ABI and linknamespace tests - this patch reduces the number of linknamespace failures I see on ARM from 227 to 5, the residue being math.h failures for fe* functions and for j0l/j1n/jnl/y0l/y1l/ynl aliases). 2014-12-17 Joseph Myers <joseph@codesourcery.com> [BZ #17725] * sysdeps/generic/profil-counter.h (profil_counter): Rename to __profil_counter. * sysdeps/unix/sysv/linux/hppa/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/i386/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/ia64/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/sh/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/tile/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/x86_64/profil-counter.h (profil_counter): Likewise. * sysdeps/unix/sysv/linux/arm/profil-counter.h (profil_counter): Likewise. [!__profil_counter] (profil_counter): Define as weak alias of __profil_counter. * sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h (profil_counter): Rename to __profil_counter. [!__profil_counter] (profil_counter): Define as weak alias of __profil_counter. * sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h (profil_counter): Rename to __profil_counter. [!__profil_counter] (profil_counter): Define as weak alias of __profil_counter. * sysdeps/posix/profil.c: Update comment referring to profil_counter. (__profil): Use __profil_counter instead of profil_counter. * sysdeps/posix/sprofil.c (profil_counter): Rename to __profil_counter. Use __profil_counter_ushort and __profil_counter_uint in definitions. (__sprofil): Use __profil_counter_uint and __profil_counter_ushort instead of profil_counter_uint and profil_counter_ushort.
* Use PTR_MANGLE on libgcc unwinder function pointers.Roland McGrath2014-12-161-3/+12
|
* Revert "Use pragmas rather than makefiles for necessary options for unwind ↵Roland McGrath2014-12-164-6/+2
| | | | | | code." This reverts commit c324fcfe75c3976ae0b16943df00710e1d0d74f7.
* Use pragmas rather than makefiles for necessary options for unwind code.Roland McGrath2014-12-164-2/+6
|
* Fix x86_64 memrchr namespace (bug 17719).Joseph Myers2014-12-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | On x86_64, memrchr (not a standard function) is defined as a strong symbol, instead of a weak alias of __memrchr as on other architectures. This results in linknamespace test failures from the use of __memrchr from dirname. (Not a conformance issue because of the mem* reservation, but contrary to glibc conventions.) This patch makes x86_64 follow other architectures by defining memrchr as a weak alias. Tested for x86_64 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #17719] * sysdeps/x86_64/memrchr.S (memrchr): Rename to __memrchr and define as weak alias of __memrchr. (__memrchr): Do not define as strong alias of memrchr. * conform/Makefile (test-xfail-XPG4/libgen.h/linknamespace): Remove variable. (test-xfail-UNIX98/libgen.h/linknamespace): Likewise. (test-xfail-XOPEN2K/libgen.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/libgen.h/linknamespace): Likewise.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-11 23:40:43 +0000