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2017-11-09Add jmp_buf-macros.hH.J. Lu1-0/+34
Verify that sizes, alignments and field offsets of jmp_buf as well as sigjmp_buf are unchanged regardless how struct __jmp_buf_tag is defined. Since jmp_buf is target specific, jmp_buf-macros.h is added for each Linux target. A new target must provides its own jmp_buf-macros.h. TODO: Hurd needs to provide a jmp_buf-macros.h. Tested with build-many-glibcs.py. * include/setjmp.h [!_ISOMAC]: Include <stddef.h> and <jmp_buf-macros.h>. [!_ISOMAC] (STR_HELPER): New. [!_ISOMAC] (STR): Likewise. [!_ISOMAC] (TEST_SIZE): Likewise. [!_ISOMAC] (TEST_ALIGN): Likewise. [!_ISOMAC] (TEST_OFFSET): Likewise. [!_ISOMAC] Add _Static_assert to check sizes, alignments and field offsets of jmp_buf as well as sigjmp_buf. * sysdeps/unix/sysv/linux/aarch64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/alpha/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/arm/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/hppa/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/i386/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/ia64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/nios2/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/sh/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/jmp_buf-macros.h: Likewise.
2017-11-07Handle more _FloatN, _FloatNx types in include/float.h.Joseph Myers1-16/+92
Continuing the preparation for additional _FloatN / _FloatNx type support, this patch adds support in include/float.h. This header defines macros for _Float128 properties when using compilers before GCC 7 that lack those macros in <float.h>. For testing _Float32 / _Float64 / _Float32x / _Float64x functions with older compilers, such macros need to be defined for those types as well; for the older compilers, those types will always be typedefs for another type, so the definitions can be in terms of the macros for that other type. Tested for x86_64. * include/float.h [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MANT_DIG): New macro. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32] (FLT32_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64] (FLT64_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT32X] (FLT32X_TRUE_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MANT_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_DECIMAL_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_DIG): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX_10_EXP): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MAX): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT) && __HAVE_FLOAT64X] (FLT64X_TRUE_MIN): Likewise.
2017-11-02<array_length.h>: New array_length and array_end macrosFlorian Weimer1-0/+36
2017-10-30Remove _Mlong_double_ etc. macros.Joseph Myers1-1/+0
math.h has a macro _Mlong_double_ for the type to use when declaring long double functions, and similar macros for other types. math/Makefile uses -D_Mlong_double_=double in the case of long double having the same ABI as double. This originates with: Mon Jul 8 13:37:40 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * math/math.h (_Mfloat_, _Mlong_double_): New macros, defined iff not already defined to float, long double. Use those macros for _Mdouble_ defns when including mathcalls.h. * math/Makefile [$(long-double-fcts) != yes] (CPPFLAGS): Append -D_Mlong_double_=double. However, math.h stopped declaring long double functions in the case of long double having the same ABI as double (and thus probably stopped actually needing the Makefile definition of _Mlong_double_) with: 1998-11-05 Ulrich Drepper <drepper@cygnus.com> * math/math.h: Unconditionally include bits/mathdef.h. Declare long double functions only if __NO_LONG_DOUBLE_MATH is not defined. * sysdeps/generic/bits/mathdef.h: Define only if __USE_ISOC9X. Define __NO_LONG_DOUBLE_MATH. * sysdeps/m68k/fpu/bits/mathdef.h: Define only if __USE_ISOC9X. * sysdeps/i386/fpu/bits/mathdef.h: Likewise. The declarations were since restored for compiling user code, but remain absent when _LIBC is defined, which is sufficient to avoid problems declaring function aliases of incompatible types. Thus the indirection through the _Mlong_double_ macro is not needed (probably since that 1998 patch), and this patch removes _Mlong_double_ and associated macros for other types, leaving only the macro _Mdouble_ which is actually used as the type for which a given inclusion of <bits/mathcalls.h> should declared functions. Tested for x86_64, and tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. * math/math.h [!_Mfloat_] (_Mfloat_): Do not define. [!_Mlong_double_] (_Mlong_double_): Likewise. [!_Mfloat16_] (_Mfloat16_): Likewise. [!_Mfloat32_] (_Mfloat32_): Likewise. [!_Mfloat64_] (_Mfloat64_): Likewise. [!_Mfloat128_] (_Mfloat128_): Likewise. [!_Mfloat32x_] (_Mfloat32x_): Likewise. [!_Mfloat64x_] (_Mfloat64x_): Likewise. [!_Mfloat128x_] (_Mfloat128x_): Likewise. (_Mdouble_): Define without indirection through those macros. * math/complex.h [!_Mfloat_] (_Mfloat_): Do not define. [!_Mfloat128_] (_Mfloat128_): Likewise. [_Mlong_double_] (_Mlong_double_): Likewise. (_Mdouble_): Define without indirection through those macros. * math/Makefile [$(long-double-fcts) != yes] (math-CPPFLAGS): Do not add -D_Mlong_double_=double. * include/math.h [_ISOMAC] (_Mlong_double_): Do not undefine. * math/test-signgam-finite-c99.c (_Mlong_double_): Likewise.
2017-10-25Replace "if if " with "if " in commentsH.J. Lu1-2/+2
* include/alloc_buffer.h: Replace "if if " with "if " in comments. * sysdeps/mips/memcpy.S: Likkewise. * sysdeps/mips/memset.S: Likewise. * sysdeps/x86_64/fpu/multiarch/svml_s_sincosf16_core_avx512.S: Likewise. * sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S: Likewise. * sysdeps/x86_64/fpu/multiarch/svml_s_sincosf8_core_avx2.S: Likewise.
2017-10-17Use __f128 to define FLT128_* constants in include/float.h for old GCC.Joseph Myers1-4/+8
When using compilers before GCC 7, include/float.h provides fallback definitions of FLT128_* constants. These definitions use 'Q' constant suffixes, which works for configurations with _Float128 ABI-distinct from long double, but not where it has the same ABI as long double. This patch changes the definitions to use the __f128 macro from <bits/floatn.h>, so allowing them to work in the non-distinct _Float128 case (where they are used in building glibc tests, not for building glibc itself) as well. Tested (a) with build-many-glibcs.py with GCC 6 (installed stripped shared libraries unchanged by the patch); (b) with build-many-glibcs.py with GCC 6 together with the main patch to enable float128 aliases; (c) for x86_64 with both GCC 6 and GCC 7. * include/float.h [!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (FLT128_MAX): Define using __f128. [!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (FLT128_EPSILON): Likewise. [!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (FLT128_MIN): Likewise. [!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (FLT128_TRUE_MIN): Likewise.
2017-10-16shlib-compat: Update documentation of the compat_symbol_reference macroCarlos O'Donell1-2/+6
2017-10-09Ensure C99 and C11 interfaces are available for C++ [BZ #21326]Jonathan Wakely1-6/+11
This patch ensures that the C99 and C11 features required by C++ are defined according to the value of the __cplusplus macro, and not just because G++ always defines _GNU_SOURCE. This will allow G++ to stop defining _GNU_SOURCE some day, without causing the C99 and C11 interfaces to disappear for C++ programs. [BZ #21326] * include/features.h [__cplusplus >= 201103] (__USE_ISOC99): Define. [__cplusplus >= 201703] (__USE_ISOCXX17, __USE_ISOC11): Define. * math/Makefile (test-math-cxx11): New test. * math/test-math-cxx11.cc: New file.
2017-10-04Don't use hidden visibility in libc.a with PIE on i386H.J. Lu1-0/+1
On i386, when multi-arch is enabled, all external functions must be called via PIC PLT in PIE, which requires setting up EBX register, since they may be IFUNC functions. * config.h.in (NO_HIDDEN_EXTERN_FUNC_IN_PIE): New. * include/libc-symbols.h (__hidden_proto_hiddenattr): Add check for PIC and NO_HIDDEN_EXTERN_FUNC_IN_PIE. * sysdeps/i386/configure.ac (NO_HIDDEN_EXTERN_FUNC_IN_PIE): New AC_DEFINE if multi-arch is enabled. * sysdeps/i386/configure: Regenerated.
2017-10-03Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDENSamuel Thibault10-11/+11
On the Hurd, the rtld needs to see its own dumb versions of a few functions (defined in sysdeps/mach/hurd/dl-sysdep.c) overridden by libc's versions once loaded. rtld should thus not have hidden attribute for these. To achieve this, the Hurd port used to just define NO_HIDDEN, which disables it completely. For now, this changes that to disabling it for all rtld functions, for simplicity. See Roland's comment on https://sourceware.org/bugzilla/show_bug.cgi?id=15605#c5 The ld.so numbers remain at 8 .rel.plt 000000c8 00000c24 00000c24 00000c24 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA 9 .plt 000001a0 00000cf0 00000cf0 00000cf0 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 10 .plt.got 00000010 00000e90 00000e90 00000e90 2**3 CONTENTS, ALLOC, LOAD, READONLY, CODE 18 .got.plt 00000070 0002d000 0002d000 0002c000 2**2 CONTENTS, ALLOC, LOAD, DATA which is about 3 times as much as on Linux. The libc.so numbers get divided by 3 (the remainings are mostly RPC stub calls) * include/libc-symbols.h [NO_RTLD_HIDDEN] (rtld_hidden_proto, rtld_hidden_tls_proto, rtld_hidden_def, rtld_hidden_weak, rtld_hidden_rtld_hidden_ver, data_def, rtld_hidden_data_weak, rtld_hidden_data_ver): Define to empty. * include/assert.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__assert_fail, __assert_perror_fail): Likewise. * include/dirent.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__rewinddir): Likewise. * include/libc-internal.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__profile_frequency): Likewise. * include/setjmp.h (__sigsetjmp): Likewise. * include/signal.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__sigaction, __libc_sigaction): Likewise. * include/stdlib.h [NO_RTLD_HIDDEN] (unsetenv, __strtoul_internal): Do not set hidden attribute. * include/string.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__stpcpy, __strdup, __strerror_t, __strsep_g, memchr, memcmp, memcpy, memmove, memset, rawmemchr, stpcpy, strchr, strcmp, strlen, strnlen, strsep): Likewise. * include/sys/stat.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__fxstat, __fxstat64, __lxstat, __lxstat64, __xstat, __xstat64, __fxstatat64): Likewise. * include/sys/utsname.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__uname): Likewise. * include/sysdeps/generic/_itoa.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (_itoa_upper_digits, _itoa_lower_digits): Likewise. * sysdeps/mach/hurd/configure.ac (NO_HIDDEN): Do not set. (NO_RTLD_HIDDEN): Set. * sysdeps/mach/hurd/configure: Refresh. * config.h.in: Refresh.
2017-10-01Hide internal __glob64 function [BZ #18822]H.J. Lu1-0/+1
Hide internal __glob64 function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/glob.h (__glob64): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/glob64.c (__glob64): Add libc_hidden_def.
2017-10-01Hide internal __init_misc function [BZ #18822]H.J. Lu1-1/+1
Hide internal __init_misc function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/libc-internal.h (__init_misc): Add attribute_hidden.
2017-10-01Hide internal __setfpucw function [BZ #18822]H.J. Lu1-1/+1
Hide internal __setfpucw function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/fpu_control.h (__setfpucw): Add attribute_hidden.
2017-10-01Hide internal __tcgetattr function [BZ #18822]H.J. Lu1-0/+1
Hide internal __tcgetattr function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/termios.h (__tcgetattr): Add libc_hidden_proto. * sysdeps/unix/bsd/tcgetattr.c (__tcgetattr): Add libc_hidden_def. * sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Likewise. * termios/tcgetattr.c (__tcgetattr): Likewise.
2017-10-01Hide internal __setrlimit function [BZ #18822]H.J. Lu1-0/+1
Hide internal __setrlimit function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/resource.h (__setrlimit): Add libc_hidden_proto. * resource/setrlimit.c (__setrlimit): Add libc_hidden_def. * sysdeps/mach/hurd/setrlimit.c (__setrlimit): Likewise. * sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Likewise. * sysdeps/unix/sysv/linux/setrlimit64.c (__GI___setrlimit): New.
2017-10-01Hide internal __vstrfmon_l function [BZ #18822]H.J. Lu1-1/+2
Hide internal __vstrfmon_l function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/monetary.h (__vstrfmon_l): Add attribute_hidden.
2017-10-01Hide internal __sched_setparam function [BZ #18822]H.J. Lu1-0/+1
Hide internal __sched_setparam function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___sched_setparam is defined when sysdeps/unix/syscalls.list is used to generate sched_setparam. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sched.h (__sched_setparam): Add libc_hidden_proto. * posix/sched_setp.c (__sched_setparam): Add libc_hidden_def.
2017-10-01Hide internal __hasmntopt function [BZ #18822]H.J. Lu1-0/+1
Hide internal __hasmntopt function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/mntent.h (__hasmntopt): Add libc_hidden_proto. * misc/mntent_r.c (__hasmntopt): Add libc_hidden_def.
2017-10-01Hide internal __ifreq function [BZ #18822]H.J. Lu1-0/+14
Hide internal __ifreq function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/ifreq.h: New file. * sysdeps/generic/ifreq.h (__if_nextreq): Removed. (__ifreq): Likewise. * sysdeps/mach/hurd/ifreq.h (__if_nextreq): Removed. (__ifreq): Likewise.
2017-10-01Hide internal idna functions [BZ #18822]H.J. Lu1-0/+8
Hide internal idna functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/idna.h: New file. * inet/getnameinfo.c: Include <idna.h> instead of <libidn/idna.h>. (__idna_to_unicode_lzlz): Removed. * sysdeps/posix/getaddrinfo.c: Include <idna.h> instead of <libidn/idna.h>. (__idna_to_ascii_lz): Removed. (__idna_to_unicode_lzlz): Likewise.
2017-10-01Hide internal __gettextparse function [BZ #18822]H.J. Lu1-0/+8
Hide internal __gettextparse function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/plural-exp.h: New file. * intl/plural-exp.c: Include <plural-exp.h> instead of "plural-exp.h".
2017-10-01Move hidden_proto (__dl_iterate_phdr) to include/link.h [BZ #18822]H.J. Lu1-0/+1
__dl_iterate_phdr is hidden and should be accessed directly within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * elf/dl-iteratephdr.c (hidden_proto (__dl_iterate_phdr)): Moved to ... * include/link.h (hidden_proto (__dl_iterate_phdr)): Here.
2017-10-01Hide internal __tdestroy function [BZ #18822]H.J. Lu1-0/+1
Hide internal __tdestroy function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/search.h (__tdestroy): Add libc_hidden_proto. * misc/tsearch.c (__tdestroy): Add libc_hidden_def.
2017-10-01Hide internal __assert_fail_base function [BZ #18822]H.J. Lu1-1/+1
Hide internal __assert_fail_base function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/assert.h (__assert_fail_base): Add attribute_hidden.
2017-10-01Hide internal signal functions [BZ #18822]H.J. Lu1-0/+4
Hide internal signal functions to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___kill and __GI___sigaltstack are defined when syscalls.list is used to generate them. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/signal.h (__kill): Add libc_hidden_proto. (__sigblock): Likewise. (__sigprocmask): Likewise. (__sigaltstack): Likewise. * signal/kill.c (__kill): Add libc_hidden_def. * signal/sigblock.c (__sigblock): Likewise. * signal/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/mach/hurd/kill.c (__kill): Likewise. * sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise. * sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/posix/sigblock.c (__sigblock): Likewise. * sysdeps/unix/sysv/linux/alpha/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask): Likewise. * /sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c (__sigprocmask): Likewise. * sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask): Likewise.
2017-10-01Hide internal __strsep function [BZ #18822]H.J. Lu1-0/+1
Hide internal __strsep function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/string.h (__strsep): Add libc_hidden_proto. * string/strsep.c (__strsep): Add libc_hidden_def.
2017-10-01Hide internal __mremap function [BZ #18822]H.J. Lu1-0/+1
Hide internal __mremap function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___mremap is defined when sysdeps/unix/syscalls.list is used to generate mremap. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sys/mman.h (__mremap): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/m68k/mremap.S (__mremap): Add libc_hidden_def.
2017-10-01Hide internal __malloc_check_init function [BZ #18822]H.J. Lu1-0/+2
Hide internal __malloc_check_init function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/malloc.h (__malloc_check_init): Add attribute_hidden.
2017-10-01Hide internal __ioctl function [BZ #18822]H.J. Lu1-0/+1
Hide internal __ioctl function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___ioctl is defined when sysdeps/unix/syscalls.list is used to generate ioctl. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sys/ioctl.h (__ioctl): Add libc_hidden_proto. * misc/ioctl.c (__ioctl): Add libc_hidden_def. * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
2017-10-01Hide internal sysinfo functions [BZ #18822]H.J. Lu1-1/+5
Hide internal sysinfo functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/sysinfo.h (__get_nprocs_conf): Add libc_hidden_proto. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. (__get_child_max): Add attribute_hidden. * misc/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. * sysdeps/mach/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Add libc_hidden_def. (__get_nprocs_conf): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise.
2017-10-01Mark internal rpc functions with attribute_hidden [BZ #18822]H.J. Lu1-4/+4
Mark internal rpc functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/rpc/rpc.h (__rpc_thread_variables): Add attribute_hidden. (__rpc_thread_svc_cleanup): Likewise. (__rpc_thread_clnt_cleanup): Likewise. (__rpc_thread_key_cleanup): Likewise.
2017-10-01Hide __readv and __writev [BZ #18822]H.J. Lu1-0/+2
Hide internal __readv and __writev functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/uio.h (__readv): Add libc_hidden_proto. (__writev): Likewise. * misc/readv.c (__readv): Add libc_hidden_def. * misc/writev.c (__writev): Likewise. * sysdeps/posix/readv.c (__readv): Likewise. * sysdeps/posix/writev.c (__writev): Likewise. * sysdeps/unix/sysv/linux/readv.c: Include <sys/uio.h>. (__readv): Likewise. * sysdeps/unix/sysv/linux/writev.c: Include <sys/uio.h>. (__writev): Likewise.
2017-10-01Hide internal regex functions [BZ #18822]H.J. Lu1-1/+5
Hide internal regex functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/regex.h (__re_compile_fastmap): Add attribute_hidden. (__regcomp): Add libc_hidden_proto. (__regexec): Likewise. (__regfree): Likewise. * posix/regcomp.c (__regcomp): Add libc_hidden_def. (__regfree): Likewise. * posix/regexec.c (__regexec): Likewise.
2017-10-01Mark internal utmp functions with attribute_hidden [BZ #18822]H.J. Lu1-3/+11
Mark internal utmp functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/utmp.h (__updwtmp): Add libc_hidden_proto. (__getutent): Likewise. (__getutid): Likewise. (__getutline): Likewise. (__pututline): Likewise. (__getutent_r): Likewise. (__getutid_r): Likewise. (__getutline_r): Likewise. (__utmpname): Add attribute_hidden. (__setutent): Likewise. (__endutent): Likewise. * login/getutent.c (__getutent): Add libc_hidden_def. * login/getutent_r.c (__getutent_r): Likewise. (__pututline): Likewise. * login/getutid.c (__getutid): Likewise. * login/getutid_r.c (__getutid_r): Likewise. * login/getutline.c (__getutline): Likewise. * login/getutline_r.c (__getutline_r): Likewise. * login/updwtmp.c (__updwtmp): Likewise.
2017-10-01Mark internal dirent functions with attribute_hidden [BZ #18822]H.J. Lu1-8/+5
Mark internal dirent functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. __readdir64 is hidden with libc_hidden_proto and libc_hidden_def since the exported readdir64 is an alias of __readdir64. [BZ #18822] * include/dirent.h (__opendir): Always add attribute_hidden. (__fdopendir): Likewise. (__closedir): Likewise. (__readdir): Likewise. (__readdir64): Add libc_hidden_proto. * sysdeps/mach/hurd/readdir64.c (__readdir64): Add libc_hidden_def. * sysdeps/unix/sysv/linux/i386/readdir64.c (__readdir64): Likewise. * sysdeps/unix/sysv/linux/readdir64.c (__readdir64): Likewise. * sysdeps/unix/sysv/linux/wordsize-64/readdir.c (__GI___readdir64): New alias.
2017-10-01Mark internal getXXXbyYYY functions with attribute_hidden [BZ #18822]H.J. Lu3-13/+24
Mark internal getXXXbyYYY functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/aliases.h (__getaliasbyname_r): Add attribute_hidden. * include/netdb.h (__gethostbyaddr_r): Likewise. (__gethostbyname_r): Likewise. (__gethostbyname2_r): Likewise. (__getnetbyaddr_r): Likewise. (__getnetbyname_r): Likewise. (__getservbyname_r): Likewise. (__getservbyport_r): Likewise. (__getprotobyname_r): Likewise. (__getprotobynumber_r): Likewise. (__getnetgrent_r): Likewise. * include/rpc/netdb.h (__getrpcbyname_r): Likewise. (__getrpcbynumber_r): Likewise. * nss/getXXbyYY.c (INTERNAL (REENTRANT_NAME)): Likewise.
2017-10-01Mark internal stdio functions with attribute_hidden [BZ #18822]H.J. Lu1-9/+9
Mark internal stdio functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/stdio.h (__fcloseall): Add attribute_hidden. (__getline): Likewise. (__path_search): Likewise. (__gen_tempname): Likewise. (__libc_message): Likewise. (__flockfile): Likewise. (__funlockfile): Likewise. (__fxprintf): Likewise. (__fxprintf_nocancel): Likewise.
2017-10-01Mark internal gshadow functions with attribute_hidden [BZ #18822]H.J. Lu1-2/+4
Mark internal gshadow functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/gshadow.h (__fgetsgent_r): Add attribute_hidden. (__sgetsgent_r): Likewise.
2017-10-01Mark internal statfs functions with attribute_hidden [BZ #18822]H.J. Lu2-5/+10
Mark internal statfs functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/statfs.h (__fstatfs): Add attribute_hidden. (__statfs64): Likewise. (__fstatfs64): Likewise. * include/sys/statvfs.h (__statvfs64): Likewise. (__fstatvfs64): Likewise. * sysdeps/unix/sysv/linux/pathconf.h (__statfs_link_max): Likewise. (__statfs_filesize_max): Likewise. (__statfs_symlinks): Likewise. (__statfs_chown_restricted): Likewise.
2017-10-01Mark internal time functions with attribute_hidden [BZ #18822]H.J. Lu1-11/+15
Mark internal time functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/time.h (__tzstring): Add attribute_hidden. (__tzfile_read): Likewise. (__tzfile_compute): Likewise. (__tzfile_default): Likewise. (__tzset_parse_tz): Likewise. (__offtime): Likewise. (__asctime_r): Likewise. (__tzset): Likewise. (__tz_convert): Likewise. (__getdate_r): Likewise. (__getclktck): Likewise.
2017-10-01Mark internal gmp functions with attribute_hidden [BZ #18822]H.J. Lu1-7/+26
Mark internal gmp functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/gmp.h: Declare internal functions only if _ISOMAC is undefined. (__mpn_extract_double): Add attribute_hidden. (__mpn_extract_long_double): Likewise. (__mpn_extract_float128): Likewise. (__mpn_construct_float): Likewise. (__mpn_construct_double): Likewise. (__mpn_construct_long_double): Likewise. (__mpn_construct_float128): Likewise. (mpn_add_1): Likewise. (mpn_addmul_1): Likewise. (mpn_add_n): Likewise. (mpn_cmp): Likewise. (mpn_divrem): Likewise. (mpn_lshift): Likewise. (mpn_mul): Likewise. (mpn_mul_1): Likewise. (mpn_rshift): Likewise. (mpn_sub_1): Likewise. (mpn_submul_1): Likewise. (mpn_sub_n): Likewise.
2017-10-01Mark internal wchar functions with attribute_hidden [BZ #18822]H.J. Lu1-14/+24
Mark internal wchar functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/wchar.h (__wcsnlen): Add attribute_hidden. (__wcscat): Likewise. (__btowc): Likewise. (__wcrtomb): Likewise. (__mbsrtowcs): Likewise. (__wcsrtombs): Likewise. (__mbsnrtowcs): Likewise. (__wcsnrtombs): Likewise. (__wcsncpy): Likewise. (__wcpncpy): Likewise. (__wmemcpy): Likewise. (__wmempcpy): Likewise. (__wmemmove): Likewise. (__wcschrnul): Likewise. (__vfwscanf): Likewise. (__vswprintf): Likewise. (__fwprintf): Likewise. (__vfwprintf): Likewise.
2017-10-01Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822]H.J. Lu3-9/+10
Mark internal grp/pwd/shadow functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/grp.h (__fgetgrent_r): Add attribute_hidden. (__getgrgid_r): Likewise. (__getgrnam_r): Likewise. * include/pwd.h (__getpwuid_r): Likewise. (__getpwnam_r): Likewise. (__fgetpwent_r): Likewise. * include/shadow.h (__getspnam_r): Likewise. (__sgetspent_r): Likewise. (__fgetspent_r): Likewise.
2017-10-01Mark internal unistd functions with attribute_hidden [BZ #18822]H.J. Lu1-28/+32
Mark internal unistd functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/unistd.h (__access): Add attribute_hidden. (__lseek64): Likewise. (__libc_pread64): Likewise. (__pipe2): Likewise. (__sleep): Likewise. (__chdir): Likewise. (__fchdir): Likewise. (__getcwd): Likewise. (__rmdir): Likewise. (__execvpe): Likewise. (__execve): Likewise. (__setsid): Likewise. (__getuid): Likewise. (__geteuid): Likewise. (__getgid): Likewise. (__getegid): Likewise. (__getgroups): Likewise. (__group_member): Likewise. (__ttyname_r): Likewise. (__isatty): Likewise. (__readlink): Likewise. (__unlink): Likewise. (__gethostname): Likewise. (__profil): Likewise. (__getdtablesize): Likewise. (__brk): Likewise. (__ftruncate): Likewise. (__ftruncate64): Likewise.
2017-10-01Mark internal argp functions with attribute_hidden [BZ #18822]H.J. Lu2-0/+29
Mark internal argp functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * argp/argp-fmtstream.c: Include <argp-fmtstream.h>. * argp/argp-fs-xinl.c: Likewise. * argp/argp-help.c: Include <argp.h> and <argp-fmtstream.h>. * argp/argp-parse.c: Include <argp.h>. * argp/argp-xinl.c: Likewise. * include/argp-fmtstream.h: New file. * include/argp.h (__argp_error): Add attribute_hidden. (__argp_failure): Likewise. (__argp_input): Likewise. (__argp_state_help): Likewise.
2017-10-01Mark ____wcsto*_l_internal functions with attribute_hidden [BZ #18822]H.J. Lu1-0/+23
Mark ____wcsto*_l_internal functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/wchar.h (____wcstof_l_internal): New prototype. (____wcstod_l_internal): Likewise. (____wcstold_l_internal): Likewise. (____wcstol_l_internal): Likewise. (____wcstoul_l_internal): Likewise. (____wcstoll_l_internal): Likewise. (____wcstoull_l_internal): Likewise. (____wcstof128_l_internal): Likewise. * sysdeps/ieee754/float128/wcstof128.c (____wcstof128_l_internal): Removed. * sysdeps/ieee754/float128/wcstof128_l.c (____wcstof128_l_internal): Likewise. * wcsmbs/wcstod.c (____wcstod_l_internal): Likewise. * wcsmbs/wcstod_l.c (____wcstod_l_internal): Likewise. * wcsmbs/wcstof.c (____wcstof_l_internal): Likewise. * wcsmbs/wcstof_l.c (____wcstof_l_internal): Likewise. * wcsmbs/wcstol_l.c (____wcstol_l_internal): Likewise. * wcsmbs/wcstold.c (____wcstold_l_internal): Likewise. * wcsmbs/wcstold_l.c (____wcstold_l_internal): Likewise. * wcsmbs/wcstoll_l.c (____wcstoll_l_internal): Likewise. * wcsmbs/wcstoul_l.c (____wcstoul_l_internal): Likewise. * wcsmbs/wcstoull_l.c (____wcstoull_l_internal): Likewise.
2017-10-01Mark internal functions with attribute_hidden [BZ #18822]H.J. Lu3-4/+5
Mark internal functions with attribute_hidden to allow direct access to internal functions within libc.so and libc.a without using GOT nor PLT. Size comparison of libc.so: On x86-64: text data bss dec hex Before: 1728577 20584 17088 1766249 1af369 After : 1728593 20584 17088 1766265 1af379 The only change is __gconv_release_shlib in iconv/gconv_dl.c is inlined since it is hidden, which increases the code size of gconv_dl.os by 18 bytes. On i686: text data bss dec hex Before: 1869039 11444 11112 1891595 1cdd0b After : 1868635 11444 11112 1891191 1cdb77 The code size is decreased by avoiding GOT/PLT for hidden functions. [BZ #18822] * iconv/gconv_int.h (__gconv_open): Add attribute_hidden. (__gconv_close): Likewise. (__gconv): Likewise. (__gconv_find_transform): Likewise. (__gconv_lookup_cache): Likewise. (__gconv_compare_alias_cache): Likewise. (__gconv_load_cache): Likewise. (__gconv_get_path): Likewise. (__gconv_close_transform): Likewise. (__gconv_release_cache): Likewise. (__gconv_find_shlib): Likewise. (__gconv_release_shlib): Likewise. (__gconv_get_builtin_trans): Likewise. (__gconv_compare_alias): Likewise. * include/dlfcn.h (_dlerror_run): Likewise. * include/stdio.h (__fortify_fail_abort): Likewise. * include/time.h (__tz_compute): Likewise. (__strptime_internal): Likewise. * intl/gettextP.h (_nl_find_domain): Likewise. (_nl_load_domain): Likewise. (_nl_find_msg): Likewise. * intl/plural-exp.h (FREE_EXPRESSION): Likewise. (EXTRACT_PLURAL_EXPRESSION): Likewise. * locale/coll-lookup.h (__collidx_table_lookup): Likewise. * resolv/gai_misc.h (__gai_enqueue_request): Likewise. (__gai_find_request): Likewise. (__gai_remove_request): Likewise. (__gai_notify): Likewise. (__gai_notify_only): Likewise. * sysdeps/generic/aio_misc.h (__aio_sigqueue): Likewise. * sysdeps/generic/ldsodefs.h (_dl_fini): Likewise. (_dl_non_dynamic_init): Likewise. (_dl_aux_init): Likewise. * sysdeps/i386/machine-gmon.h (mcount_internal): Likewise. * sysdeps/unix/sysv/linux/i386/olddirent.h (__old_getdents64): Likewise. * wcsmbs/wcsmbsload.h (__wcsmbs_load_conv): Likewise. (__wcsmbs_clone_conv): Likewise. (__wcsmbs_named_conv): Likewise.
2017-10-01Mark internal stdlib functions with attribute_hidden [BZ #18822]H.J. Lu1-19/+32
Mark internal stdlib functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. __realpath is hidden with libc_hidden_proto and libc_hidden_def since the exported realpath is an alias of __realpath. [BZ #18822] * include/stdlib.h (__random): Add attribute_hidden. (__random_r): Likewise. (__srandom_r): Likewise. (__initstate_r): Likewise. (__setstate_r): Likewise. (__erand48_r): Likewise. (__nrand48_r): Likewise. (__jrand48_r): Likewise. (__srand48_r): Likewise. (__seed48_r): Likewise. (__lcong48_r): Likewise. (__drand48_iterate): Likewise. (__setenv): Likewise. (__unsetenv): Likewise. (__clearenv): Likewise. (__ptsname_r): Likewise. (__posix_openpt): Likewise. (__add_to_environ): Likewise. (__realpath): Add libc_hidden_proto. (__ecvt_r): Likewise. (__fcvt_r): Likewise. (__qecvt_r): Likewise. (__qfcvt_r): Likewise. * misc/efgcvt_r.c (cvt_symbol_1): Add libc_hidden_def (local). * stdlib/canonicalize.c (__realpath): Add libc_hidden_def.
2017-10-01Mark 3 *_internal functions with attribute_hidden [BZ #18822]H.J. Lu2-2/+2
Mark __ptsname_internal, __mktime_internal and __fopen_internal with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/stdlib.h (__ptsname_internal): Add attribute_hidden. * include/time.h (__mktime_internal): Likewise. * libio/iolibio.h (__fopen_internal): Likewise.
2017-09-28hurd: Fix `getifaddrs' and `freeifaddrs' symbol expositionSamuel Thibault1-0/+5
from `freeaddrinfo'. `getifaddrs' and `freeifaddrs' are not in POSIX, they should not be exposed along `freeaddrinfo' (through `__check_pf') which is POSIX. * include/ifaddrs.h (__getifaddrs, __freeifaddrs): New declarations, and use libc_hidden_def on them. * inet/ifaddrs.c (__getifaddrs, __freeifaddrs): Use libc_hidden_def on them. * sysdeps/gnu/ifaddrs.c (__getifaddrs, __freeifaddrs): Likewise. * inet/check_pf.c (__check_pf): Use __getifaddrs and __freeifaddrs instead of getifaddrs and freeifaddrs.
generated by cgit v1.1 at 2024-12-27 07:55:20 +0000