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* Use C99-compliant scanf under _GNU_SOURCE with modern compilers.Zack Weinberg2019-01-0343-103/+682
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only difference between noncompliant and C99-compliant scanf is that the former accepts the archaic GNU extension '%as' (also %aS and %a[...]) meaning to allocate space for the input string with malloc. This extension conflicts with C99's use of %a as a format _type_ meaning to read a floating-point number; POSIX.1-2008 standardized equivalent functionality using the modifier letter 'm' instead (%ms, %mS, %m[...]). The extension was already disabled in most conformance modes: specifically, any mode that doesn't involve _GNU_SOURCE and _does_ involve either strict conformance to C99 or loose conformance to both C99 and POSIX.1-2001 would get the C99-compliant scanf. With compilers new enough to use -std=gnu11 instead of -std=gnu89, or equivalent, that includes the default mode. With this patch, we now provide C99-compliant scanf in all configurations except when _GNU_SOURCE is defined *and* __STDC_VERSION__ or __cplusplus (whichever is relevant) indicates C89/C++98. This leaves the old scanf available under e.g. -std=c89 -D_GNU_SOURCE, but removes it from e.g. -std=gnu11 -D_GNU_SOURCE (it was already not present under -std=gnu11 without -D_GNU_SOURCE) and from -std=gnu89 without -D_GNU_SOURCE. There needs to be an internal override so we can compile the noncompliant scanf itself. This is the same problem we had when we removed 'gets' from _GNU_SOURCE and it's dealt with the same way: there's a new __GLIBC_USE symbol, DEPRECATED_SCANF, which defaults to off under the appropriate conditions for external code, but can be overridden by individual files within stdio. We also run into problems with PLT bypass for internal uses of sscanf, because libc_hidden_proto uses __REDIRECT and so does the logic in stdio.h for choosing which implementation of scanf to use; __REDIRECT isn't transitive, so include/stdio.h needs to bridge the gap with a macro. As far as I can tell, sscanf is the only function in this family that's internally called by unrelated code. Finally, there are several tests in stdio-common that use the extension. bug21.c is a regression test for a crash; it still exercises the relevant code when changed to use %ms instead of %as. scanf14.c through scanf17.c are more complicated since they are actually testing the subtleties of the extension - under what circumstances is 'a' treated as a modifier letter, etc. I changed all of them to use %ms instead of %as as well, but duplicated scanf14.c and scanf16.c as scanf14a.c and scanf16a.c. These still use %as and are compiled with -std=gnu89 to access the old extension. A bunch of diagnostic overrides and manual workarounds for the old stdio.h behavior become unnecessary. Yay! * include/features.h (__GLIBC_USE_DEPRECATED_SCANF): New __GLIBC_USE parameter. Only use deprecated scanf when __USE_GNU is defined and __STDC_VERSION__ is less than 199901L or __cplusplus is less than 201103L, whichever is relevant for the language being compiled. * libio/stdio.h, libio/bits/stdio-ldbl.h: Decide whether to redirect scanf, fscanf, sscanf, vscanf, vfscanf, and vsscanf to their __isoc99_ variants based only on __GLIBC_USE (DEPRECATED_SCANF). * wcsmbs/wchar.h: wcsmbs/bits/wchar-ldbl.h: Likewise for wscanf, fwscanf, swscanf, vwscanf, vfwscanf, and vswscanf. * libio/iovsscanf.c * libio/fwscanf.c * libio/iovswscanf.c * libio/swscanf.c * libio/vscanf.c * libio/vwscanf.c * libio/wscanf.c * stdio-common/fscanf.c * stdio-common/scanf.c * stdio-common/vfscanf.c * stdio-common/vfwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-compat.c * sysdeps/ieee754/ldbl-opt/nldbl-fscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-fwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-iovfscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-scanf.c * sysdeps/ieee754/ldbl-opt/nldbl-sscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-swscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vfscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vfwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vsscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vswscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-wscanf.c: Override __GLIBC_USE_DEPRECATED_SCANF to 1. * stdio-common/sscanf.c: Likewise. Remove ldbl_hidden_def for __sscanf. * stdio-common/isoc99_sscanf.c: Add libc_hidden_def for __isoc99_sscanf. * include/stdio.h: Provide libc_hidden_proto for __isoc99_sscanf, not sscanf. [!__GLIBC_USE (DEPRECATED_SCANF)]: Define sscanf as __isoc99_scanf with a preprocessor macro. * stdio-common/bug21.c, stdio-common/scanf14.c: Use %ms instead of %as, %mS instead of %aS, %m[] instead of %a[]; remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat. * stdio-common/scanf16.c: Likewise. Add __attribute__ ((format (scanf))) to xscanf, xfscanf, xsscanf. * stdio-common/scanf14a.c: New copy of scanf14.c which still uses %as, %aS, %a[]. Remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat. * stdio-common/scanf16a.c: New copy of scanf16.c which still uses %as, %aS, %a[]. Add __attribute__ ((format (scanf))) to xscanf, xfscanf, xsscanf. * stdio-common/scanf15.c, stdio-common/scanf17.c: No need to override feature selection macros or provide definitions of u_char etc. * stdio-common/Makefile (tests): Add scanf14a and scanf16a. (CFLAGS-scanf15.c, CFLAGS-scanf17.c): Remove. (CFLAGS-scanf14a.c, CFLAGS-scanf16a.c): New. Compile these files with -std=gnu89.
* termios: Consolidate termios.hAdhemerval Zanella2019-01-039-295/+35
| | | | | | | | | | | | | | | | | This patch consolidates the Linux termios.h by removing the arch-specific one. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/termios-misc.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Remove file. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios-misc.h: New file. * sysdeps/unix/sysv/linux/bits/termios.h: Include termios-misc.h.
* termios: Add powerpc termios-miscAdhemerval Zanella2019-01-034-50/+84
| | | | | | | | | | | | | | | | | | | PowerPC termios.h header contains additional BSD terminal mode definitions (sgttyb, tchars, ltchars, and associated TIOCPKT_* symbolic constants). This patch moves all powerpc termios specific definition to its own header. No semantic change is expected, checked on a build against a powerpc64le-linux-gnu build. * sysdeps/unix/sysv/linux/powerpc/bits/termios-misc.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_MISC] (struct sgtty, struct tchars, struct ltchars, TIOCPKT_DATA, TIOCPKT_FLUSHREAD, TIOCPKT_FLUSHWRITE, TIOCPKT_STOP, TIOCPKT_START, TIOCPKT_NOSTOP, TIOCPKT_DOSTOP, _VINTR, _VQUIT, _VERASE, _VKILL, _VEOF, _VMIN, _VEOL, _VTIME, _VEOL2, _VSWTC): Move to termios-misc.h. * sysdeps/unix/sysv/linux/powerpc/Makefile [$subdir == misc] (sysdep_headers): Add termios-misc.h.
* termios: Remove Linux _IOT_termiosAdhemerval Zanella2019-01-034-9/+4
| | | | | | | | | | | It is used only on hurd. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/bits/termios.h (_IOT_termios): Remove. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* termios: Consolidate tcflow symbolic constantsAdhemerval Zanella2019-01-039-23/+69
| | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants for use with tcflow in its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (currently only mips). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-tcflow.h. * sysdeps/unix/sysv/linux/bits/termios-tcflow.h: New file. * sysdeps/unix/sysv/linux/mips/bits/termios-tcflow.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (TCSANOW, TCSADRAIN, TCSAFLUSH): Move to termios-tcflow.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate local mode definitionsAdhemerval Zanella2019-01-0311-120/+214
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for local mode with c_lflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, mips, and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-c_lflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_lflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_lflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (ISIG, ISCANON, ECHO, ECHOE, ECHOK, ECHONL, NOFLSH, TOSTOP, IEXTEN): Move to termios-c_lflag.h. [__USE_MISC || (__USE_XOPEN && !__USE_XOPEN2K)] (XCASE): Likewise. [__USE_MISC] (ECHOCTL, ECHOPRT, ECHOKE, FLUSHO, PENDIN, EXTPROC): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate control mode definitionsAdhemerval Zanella2019-01-0310-60/+123
| | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for output mode with c_cflag memver on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-c_cflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_cflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_cflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (CSIZE, CS5, CS6, CS7, CS8, CSTOPB, CREAD, PARENB, PARODD, HUPCL, CLOCAL): Move to termios-c_cflag.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate Baud Rate Selection definitions (BZ#23783)Adhemerval Zanella2019-01-0311-131/+212
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for baud rates selection used along with speed_t on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. [BZ #23783] * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-baud.h. * sysdeps/unix/sysv/linux/bits/termios-baud.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-baud.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h (B57600, B115200, B230400, B460800, B500000, B576000, B921600, B1000000, B1152000, B1500000, B2000000, B2500000, B3000000, B3500000, B4000000, __MAX_BAUD): Move to termios-baud.h. [__USE_MISC] (CBAUD, CBAUDEX): Likewise. * sysdeps/unix/sysv/linux/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate Output Modes definitionsAdhemerval Zanella2019-01-0311-211/+280
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for ouput modes with c_oflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, powerpc, and sparc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add termios-c_oflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_oflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-c_oflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (OPOST, OLCUC, ONLCR, OCRNL, ONOCR, ONLRET, OFILL, OFDEL, VTDLY, VT0, VT1): Move to termios-c_oflag.h. [__USE_MISC || __USE_XOPEN] (NLDLY, NL0, NL1, CRDLY, CR0, CR1, CR2, CR3, TABDLY, TAB0, TAB1, TAB2, TAB3, BSDLY, BS0, BS1, FFDLY, FF0, FFR1): Likewise. [USE_MISC] (XTABS): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h Likewise.
* termios: Consolidate Input Modes definitions.Adhemerval Zanella2019-01-0310-86/+136
| | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used for input modes with c_iflag member on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add termios-c_iflag.h. * sysdeps/unix/sysv/linux/bits/termios-c_iflag.h: New file. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_iflag.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_iflag.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (IGNBRK, BRKINT, IGNPAR, PARMRK, INPCK, ISTRIP, INLCR, IGNCR, ICRNL, IXON, IXOFF, IXANY, IUCLC, IMAXBEL, IUTF8): Move to termios-c_iflag.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate termios c_cc symbolic constantsAdhemerval Zanella2019-01-0312-103/+228
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the termios symbolic constants used as subscript for the array c_cc on its own header. The Linux generic implementation values match the kernel UAPI and each architecture with deviate values have their own implementation (in this case alpha, mips64, sparc64, and powerpc). No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add termios-cc.h. * sysdeps/unix/sysv/linux/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios-c_cc.h: New file. * sysdeps/unix/sysv/linux/mips/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-c_cc.h: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h (VINTR, VQUIT, VERASE, VKILL, VEOF, VTIME, VMIN, VSWTC, VSTART, VSTOP, VSUSP, VEOL, VREPRINT, VDISCARD, VWERASE, VLNEXT, VEOLF2): Move to termios-cc.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* termios: Consolidate struct termiosAdhemerval Zanella2019-01-0317-76/+195
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates the struct termios definition on its own header and adds arch-defined ones for ABIs that deviate from generic implementation. They are: - alpha which has a slight different layout than generic one (c_cc field is defined prior c_line). - sparc and mips which do not have the c_ispeed/c_ospeed fields. No semantic change is expected, checked on a build against x86_64-linux-gnu, alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu. * sysdeps/unix/sysv/linux/alpha/bits/termios-struct.h: New file. * sysdeps/unix/sysv/linux/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios-struct.h: Likewise. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add termios-struct.h. * sysdeps/unix/sysv/linux/bits/termios.h (struct termios): Move to termios-struct.h. * sysdeps/unix/sysv/linux/alpha/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h (struct termios): Likewise. * sysdeps/unix/sysv/linux/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Define. * sysdeps/unix/sysv/linux/mips/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel_termios.h (_HAVE_C_ISPEED, _HAVE_C_OSPEED): Likewise. * sysdeps/unix/sysv/linux/speed.c [_HAVE_STRUCT_TERMIOS_C_OSPEED] (cfsetospeed): Check for define value instead of existence. [_HAVE_STRUCT_TERMIOS_C_ISPEED] (cfsetispeed): Likewise. * sysdeps/unix/sysv/linux/tcgetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED && _HAVE_C_ISPEED] (__tcgetattr): Likewise. * sysdeps/unix/sysv/linux/tcsetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED && _HAVE_C_ISPEED] (__tcsetattr): Likewise.
* termios: Define TIOCSER_TEMT with __USE_MISC (BZ#17783)Adhemerval Zanella2019-01-034-3/+20
| | | | | | | | | | | | | | | | | | This patch defines TIOCSER_TEMT on all architectures using the __USE_MISC guards similar to BZ#17782 fix. Latest Linux UAPI defines TIOCSER_TEMT with the same value for all architectures, so it is safe to use the value as default for all ABIs. Checked on x86_64linux-gnu and build against sparc64-linux-gnu and powerpc64le-linux-gnu. [BZ #17783] * sysdeps/unix/sysv/linux/bits/termios.h [__USE_MISC] (TIOCSER_TEMT): Define. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_MISC] (TIOCSER_TEMT): Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_MISC] (TEOCSER_TEMT): Likewise.
* bs_BA: Fix a small typo in comment (bug 24011).PanderMusubi2019-01-022-1/+6
| | | | | [BZ #24011] * localedata/locales/bs_BA (LC_TELEPHONE): Fix a typo in comment.
* Update powerpc-nofpu libm-test-ulps.Joseph Myers2019-01-022-44/+48
| | | | * sysdeps/powerpc/nofpu/libm-test-ulps: Update.
* hurd: advertise *_setpshared as not supportedSamuel Thibault2019-01-026-0/+18
| | | | | | | | | | | | | | | | The functions themselves return 0, but initializing a mutex/etc with . pshared set to 1 will fail anyway . * sysdeps/htl/pt-barrierattr-setpshared.c (pthread_barrierattr_setpshared): Add stub warning. * sysdeps/htl/pt-condattr-setpshared.c (pthread_condattr_setpshared): Likewise. * sysdeps/htl/pt-mutexattr-setpshared.c (pthread_mutexattr_setpshared): Likewise. * sysdeps/htl/pt-rwlockattr-setpshared.c (pthread_rwlockattr_setpshared): Likewise. * sysdeps/mach/hurd/htl/pt-mutexattr-setpshared.c (pthread_mutexattr_setpshared): Likewise.
* Update Linux kernel version in tst-mman-consts.py.Joseph Myers2019-01-022-1/+4
| | | | | | | | | | | | | | | This patch updates the Linux kernel version in tst-mman-consts.py to 4.20 (meaning that's the version for which glibc is expected to have the same constants as the kernel, up to the exceptions listed in the test). (Once we have more such tests sharing common infrastructure, I expect the kernel version will be something set in the infrastructure shared by all such tests, rather than something needing updating separately for each test for each new kernel version.) Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Expect constants to match with Linux 4.20.
* Update MIPS libm-test-ulps.Joseph Myers2019-01-023-88/+93
| | | | | * sysdeps/mips/mips32/libm-test-ulps: Update. * sysdeps/mips/mips64/libm-test-ulps: Likewise.
* ARM: fix kernel assisted atomics with GCC 8 (bug 24034)Aurelien Jarno2019-01-022-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pre-ARMv7 CPUs are missing atomic compare and exchange and/or barrier instructions. Therefore those are implemented using kernel assistance, calling a kernel function at a specific address, and passing the arguments in the r0 to r4 registers. This is done by specifying registers for local variables. The a_ptr variable is placed in the r2 register and declared with __typeof (mem). According to the GCC documentation on local register variables, if mem is a constant pointer, the compiler may substitute the variable with its initializer in asm statements, which may cause the corresponding operand to appear in a different register. This happens in __libc_start_main with the pointer to the thread counter for static binaries (but not the shared ones): # ifdef SHARED unsigned int *ptr = __libc_pthread_functions.ptr_nthreads; # ifdef PTR_DEMANGLE PTR_DEMANGLE (ptr); # endif # else extern unsigned int __nptl_nthreads __attribute ((weak)); unsigned int *const ptr = &__nptl_nthreads; # endif This causes static binaries using threads to crash when the GNU libc is built with GCC 8 and most notably tst-cancel21-static. To fix that, use the same trick than for the volatile qualifier, defining a_ptr as a union. Changelog: [BZ #24034] * sysdeps/unix/sysv/linux/arm/atomic-machine.h (__arm_assisted_compare_and_exchange_val_32_acq): Use uint32_t rather than __typeof (...) for the a_ptr variable.
* Set behavior of sprintf-like functions with overlapping source and destinationGabriel F. T. Gomes2019-01-028-4/+149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to ISO C99, passing the same buffer as source and destination to sprintf, snprintf, vsprintf, or vsnprintf has undefined behavior. Until the commit commit 4e2f43f842ef5e253cc23383645adbaa03cedb86 Author: Zack Weinberg <zackw@panix.com> Date: Wed Mar 7 14:32:03 2018 -0500 Use PRINTF_FORTIFY instead of _IO_FLAGS2_FORTIFY (bug 11319) a call to sprintf or vsprintf with overlapping buffers, for instance vsprintf (buf, "%sTEXT", buf), would append `TEXT' into buf, while a call to snprintf or vsnprintf would override the contents of buf. After the aforementioned commit, the behavior of sprintf and vsprintf changed (so that they also override the contents of buf). This patch reverts this behavioral change, because it will likely break applications that rely on the previous behavior, even though it is undefined by ISO C. As noted by Szabolcs Nagy, this is used in SPEC2017 507.cactuBSSN_r/src/PUGH/PughUtils.c: sprintf(mess," Size:"); for (i=0;i<dim+1;i++) { sprintf(mess,"%s %d",mess,pughGH->GFExtras[dim]->nsize[i]); } More important to notice is the fact that the overwriting of the destination buffer is not the only behavior affected by the refactoring. Before the refactoring, sprintf and vsprintf would use _IO_str_jumps, whereas __sprintf_chk and __vsprintf_chk would use _IO_str_chk_jumps. After the refactoring, all use _IO_str_chk_jumps, which would make sprintf and vsprintf report buffer overflows and terminate the program. This patch also reverts this behavior, by installing the appropriate jump table for each *sprintf functions. Apart from reverting the changes, this patch adds a test case that has the old behavior hardcoded, so that regressions are noticed if something else unintentionally changes the behavior. Tested for powerpc64le.
* Fix ChangeLog entryFlorian Weimer2019-01-021-1/+1
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* intl: Do not return NULL on asprintf failure in gettext [BZ #24018]Florian Weimer2019-01-022-1/+7
| | | | | Fixes commit 9695dd0c9309712ed8e9c17a7040fe7af347f2dc ("DCIGETTEXT: Use getcwd, asprintf to construct absolute pathname").
* nptl/tst-audit-threads: Switch to <support/test-driver.c>Florian Weimer2019-01-022-8/+10
| | | | | This is a new test, so it should use the test driver in the support subdirectory.
* Add IPV6_MULTICAST_ALL from Linux 4.20 to bits/in.h.Joseph Myers2019-01-012-0/+4
| | | | | | | | | | This patch adds the IPV6_MULTICAST_ALL constant from Linux 4.20 to bits/in.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IPV6_MULTICAST_ALL): New macro.
* Add PACKET_IGNORE_OUTGOING from Linux 4.20 to netpacket/packet.h.Joseph Myers2019-01-012-0/+4
| | | | | | | | | | This patch adds the PACKET_IGNORE_OUTGOING constant from Linux 4.20 to netpacket/packet.h. Tested for x86_64. * sysdeps/unix/sysv/linux/netpacket/packet.h (PACKET_IGNORE_OUTGOING): New macro.
* Add HWCAP_SSBS from Linux 4.20 to AArch64 bits/hwcap.h.Joseph Myers2019-01-012-0/+4
| | | | | | | | | | This patch adds the HWCAP_SSBS constant from Linux 4.20 to the AArch64 bits/hwcap.h. Tested with build-many-glibcs.py for aarch64-linux-gnu. * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SSBS): New macro.
* Update syscall-names.list for Linux 4.20.Joseph Myers2019-01-012-2/+7
| | | | | | | | | | | | | This patch updates sysdeps/unix/sysv/linux/syscall-names.list for Linux 4.20. Although there are no new syscalls, the riscv_flush_icache syscall has moved to asm/unistd.h (previously in asm/syscalls.h) and so now needs to be added to the list. Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/syscall-names.list: Update kernel version to 4.20. (riscv_flush_icache): New syscall.
* Update miscellaneous files from upstream sources.Joseph Myers2019-01-015-86/+37
| | | | | | | | | | | | | | This patch updates some miscellaneous files from their upstream sources (thereby bringing in copyright date updates for some of those files). Tested for x86_64, including "make pdf". * manual/texinfo.tex: Update to version 2018-12-28.17 with trailing whitespace removed. * scripts/config.guess: Update to version 2019-01-01. * scripts/config.sub: Update to version 2019-01-01. * scripts/move-if-change: Update from gnulib.
* Update copyright dates not handled by scripts/update-copyrights.Joseph Myers2019-01-0128-27/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've updated copyright dates in glibc for 2019. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. Please remember to include 2019 in the dates for any new files added in future (which means updating any existing uncommitted patches you have that add new files to use the new copyright dates in them). * NEWS: Update copyright dates. * catgets/gencat.c (print_version): Likewise. * csu/version.c (banner): Likewise. * debug/catchsegv.sh: Likewise. * debug/pcprofiledump.c (print_version): Likewise. * debug/xtrace.sh (do_version): Likewise. * elf/ldconfig.c (print_version): Likewise. * elf/ldd.bash.in: Likewise. * elf/pldd.c (print_version): Likewise. * elf/sotruss.sh: Likewise. * elf/sprof.c (print_version): Likewise. * iconv/iconv_prog.c (print_version): Likewise. * iconv/iconvconfig.c (print_version): Likewise. * locale/programs/locale.c (print_version): Likewise. * locale/programs/localedef.c (print_version): Likewise. * login/programs/pt_chown.c (print_version): Likewise. * malloc/memusage.sh (do_version): Likewise. * malloc/memusagestat.c (print_version): Likewise. * malloc/mtrace.pl: Likewise. * manual/libc.texinfo: Likewise. * nptl/version.c (banner): Likewise. * nscd/nscd.c (print_version): Likewise. * nss/getent.c (print_version): Likewise. * nss/makedb.c (print_version): Likewise. * posix/getconf.c (main): Likewise. * scripts/test-installation.pl: Likewise. * sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-0110643-10643/+10649
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Update timezone code from tzcode 2018i.Joseph Myers2018-12-313-5/+12
| | | | | | | | | | This patch updates files coming from tzcode to the versions in tzcode 2018i. No changes elsewhere in glibc were needed. Tested for x86_64. * timezone/zdump.c: Update from tzcode 2018i. * timezone/zic.c: Likewise.
* regex: improve Gnulib port to AIXPaul Eggert2018-12-312-12/+10
| | | | | | | | | From the glibc point of view, this removes duplicate macro definitions and is obviously safe. From the Gnulib point of view, this pacifies xlc 12.01 on AIX 7.1. * posix/regex_internal.h: (__attribute__, __attribute_warn_unused_result__): Remove; already defined elsewhere.
* malloc: Always call memcpy in _int_realloc [BZ #24027]Florian Weimer2018-12-312-42/+8
| | | | | | | | This commit removes the custom memcpy implementation from _int_realloc for small chunk sizes. The ncopies variable has the wrong type, and an integer wraparound could cause the existing code to copy too few elements (leaving the new memory region mostly uninitialized). Therefore, removing this code fixes bug 24027.
* riscv: Use __has_include__ to include <asm/syscalls.h> [BZ #24022]H.J. Lu2018-12-312-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | <asm/syscalls.h> has been removed by commit 27f8899d6002e11a6e2d995e29b8deab5aa9cc25 Author: David Abdurachmanov <david.abdurachmanov@gmail.com> Date: Thu Nov 8 20:02:39 2018 +0100 riscv: add asm/unistd.h UAPI header Marcin Juszkiewicz reported issues while generating syscall table for riscv using 4.20-rc1. The patch refactors our unistd.h files to match some other architectures. - Add asm/unistd.h UAPI header, which has __ARCH_WANT_NEW_STAT only for 64-bit - Remove asm/syscalls.h UAPI header and merge to asm/unistd.h - Adjust kernel asm/unistd.h So now asm/unistd.h UAPI header should show all syscalls for riscv. <asm/syscalls.h> may be restored by Subject: [PATCH] riscv: restore asm/syscalls.h UAPI header Date: Tue, 11 Dec 2018 09:09:35 +0100 UAPI header asm/syscalls.h was merged into UAPI asm/unistd.h header, which did resolve issue with missing syscalls macros resulting in glibc (2.28) build failure. It also broke glibc in a different way: asm/syscalls.h is being used by glibc. I noticed this while doing Fedora 30/Rawhide mass rebuild. The patch returns asm/syscalls.h header and incl. it into asm/unistd.h. I plan to send a patch to glibc to use asm/unistd.h instead of asm/syscalls.h In the meantime, we use __has_include__, which was added to GCC 5, to check if <asm/syscalls.h> exists before including it. Tested with build-many-glibcs.py for riscv against kernel 4.19.12 and 4.20-rc7. [BZ #24022] * sysdeps/unix/sysv/linux/riscv/flush-icache.c: Check if <asm/syscalls.h> exists with __has_include__ before including it.
* Use Linux 4.20 in build-many-glibcs.py.Joseph Myers2018-12-312-1/+6
| | | | | * scripts/build-many-glibcs.py (Context.checkout): Default Linux version to 4.20.
* hurd: Handle "pid" magical lookup retryJustus Winter2018-12-282-13/+71
| | | | | | * hurd/lookup-retry: Include <unistd.h>. (__hurd_file_name_lookup_retry): Keep a ref on last result in `lastdir'. Release it on return. Handle "pid" magical lookup retry.
* Multiple locales: Use the correct 12-hour time formats (bug 10496).Rafal Luzynski2018-12-2880-112/+245
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has been discovered that some locales use the 12-hour time formats but do not use any AM/PM indicator thus making the time ambiguous. This commit adds "%p" wherever it was missing. In some cases it has been identified that a locale should use 24-hour time format rather than 12-hour. All time formats come from CLDR but this commit introduces as few changes as possible (for example, it tries not to change the time zone display). For the locales which are not supported by CLDR the consistency with similar locales (which means the same language or the same country) has been preserved: if the time formats were the same before the change then they are still the same after the change. The time format updates can be roughly summarized as follows: * Most of the locales of Djibouti, Eritrea, and Ethiopia now use "%l:%M:%S %p". * Most of the locales of India and some surrounding countries (Bangladesh, Nepal etc.) now use "%I:%M:%S %p %Z". * Most of the Arabic locales now use "%Z %I:%M:%S %p". * Ge'ez language (Eritrea and Ethiopia) now uses "%l:%M:%S፡%p" (note the consistent use of Ethiopic wordspace character). * Tamil (India) now uses "%p %I:%M:%S %Z". * Chinese (Hong Kong) t_fmt now uses "%p %I<U6642>%M<U5206>%S<U79D2> %Z". * Additionally, the following locales have been switched from 12-hour time formats to 24-hour, according to CLDR: Arabic (Morocco), Maltese, Somali (Kenya), and Tamil (Sri Lanka). * Finally, the Bulgarian, Czech, and Slovak locales used 24-hour time format correctly but their t_fmt_ampm field was not empty containing 12-hour time format which was incorrect so it is now replaced with an empty string. [BZ #10496] * localedata/locales/aa_DJ (t_fmt): Set to "%l:%M:%S %p". (t_fmt_ampm): Likewise. * localedata/locales/aa_ER (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/aa_ER@saaho (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/aa_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/am_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/byn_ER (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/om_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/sid_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/so_DJ (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/so_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/so_SO (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/ti_ER (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/ti_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/tig_ER (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/wal_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/anp_IN (t_fmt): Set to "%I:%M:%S %p %Z". * localedata/locales/ar_IN (t_fmt): Likewise. * localedata/locales/bhb_IN (t_fmt): Likewise. * localedata/locales/bho_IN (t_fmt): Likewise. * localedata/locales/bi_VU (t_fmt): Likewise. * localedata/locales/bn_BD (t_fmt): Likewise. * localedata/locales/bn_IN (t_fmt): Likewise. * localedata/locales/brx_IN (t_fmt): Likewise. * localedata/locales/doi_IN (t_fmt): Likewise. * localedata/locales/en_HK (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/en_IN (t_fmt): Likewise. * localedata/locales/en_PH (t_fmt): Likewise. * localedata/locales/gu_IN (t_fmt): Likewise. * localedata/locales/hi_IN (t_fmt): Likewise. * localedata/locales/hif_FJ (t_fmt): Likewise. * localedata/locales/hne_IN (t_fmt): Likewise. * localedata/locales/kn_IN (t_fmt): Likewise. * localedata/locales/kok_IN (t_fmt): Likewise. * localedata/locales/ks_IN (t_fmt): Likewise. * localedata/locales/ks_IN@devanagari (t_fmt): Likewise. * localedata/locales/mag_IN (t_fmt): Likewise. * localedata/locales/mai_IN (t_fmt): Likewise. * localedata/locales/mjw_IN (t_fmt): Likewise. * localedata/locales/ml_IN (t_fmt): Likewise. * localedata/locales/mni_IN (t_fmt): Likewise. * localedata/locales/mr_IN (t_fmt): Likewise. * localedata/locales/ms_MY (t_fmt): Likewise. * localedata/locales/pa_IN (t_fmt): Likewise. * localedata/locales/raj_IN (t_fmt): Likewise. * localedata/locales/sa_IN (t_fmt): Likewise. * localedata/locales/sat_IN (t_fmt): Likewise. * localedata/locales/sd_IN (t_fmt): Likewise. * localedata/locales/sd_IN@devanagari (t_fmt): Likewise. * localedata/locales/tcy_IN (t_fmt): Likewise. * localedata/locales/the_NP (t_fmt): Likewise. * localedata/locales/to_TO (t_fmt): Likewise. * localedata/locales/ur_IN (t_fmt): Likewise. * localedata/locales/hif_FJ (d_t_fmt): Set to "%A %d %b %Y %I:%M:%S %p". (date_fmt): Add, set to "%A %d %b %Y %I:%M:%S %p %Z". * localedata/locales/ar_AE (t_fmt): Set to "%Z %I:%M:%S %p". * localedata/locales/ar_BH (t_fmt): Likewise. * localedata/locales/ar_DZ (t_fmt): Likewise. * localedata/locales/ar_EG (t_fmt): Likewise. * localedata/locales/ar_IQ (t_fmt): Likewise. * localedata/locales/ar_JO (t_fmt): Likewise. * localedata/locales/ar_KW (t_fmt): Likewise. * localedata/locales/ar_LB (t_fmt): Likewise. * localedata/locales/ar_LY (t_fmt): Likewise. * localedata/locales/ar_OM (t_fmt): Likewise. * localedata/locales/ar_QA (t_fmt): Likewise. * localedata/locales/ar_SD (t_fmt): Likewise. * localedata/locales/ar_SS (t_fmt): Likewise. * localedata/locales/ar_SY (t_fmt): Likewise. * localedata/locales/ar_TN (t_fmt): Likewise. * localedata/locales/ar_YE (t_fmt): Likewise. * localedata/locales/gez_ER (t_fmt): Set to "%l:%M:%S<U1361>%p". (t_fmt_ampm): Likewise. * localedata/locales/gez_ET (t_fmt): Likewise. (t_fmt_ampm): Likewise. * localedata/locales/ta_IN (t_fmt): Set to "%p %I:%M:%S %Z". (t_fmt_ampm): Likewise. (d_t_fmt): Set to "%A %d %B %Y %p %I:%M:%S %Z". * localedata/locales/zh_HK (t_fmt): Set to "%p %I<U6642>%M<U5206>%S<U79D2> %Z". * localedata/locales/ar_MA (t_fmt_ampm): Set to "" (empty string) because this locale does not use the 12-hour clock. (t_fmt): Set to "%Z %H:%M:%S". (d_t_fmt): Set to "%d %b, %Y %Z %H:%M:%S". * localedata/locales/mt_MT (t_fmt_ampm): Set to "" (empty string) because this locale does not use the 12-hour clock. (t_fmt): Set to "%H:%M:%S %Z". (d_t_fmt): Set to "%A, %d ta %b, %Y %H:%M:%S %Z". * localedata/locales/so_KE (t_fmt_ampm): Set to "" (empty string) because this locale does not use the 12-hour clock. (t_fmt): Set to "%T". (d_t_fmt): Set to "%A, %B %e, %Y %X %Z". (date_fmt): Set to "%A, %B %e, %X %Z %Y". * localedata/locales/ta_LK (t_fmt_ampm): Set to "" (empty string) because this locale does not use the 12-hour clock. (t_fmt): Set to "%H:%M:%S %Z". (d_t_fmt): Set to "%A %d %B %Y %H:%M:%S %Z". * localedata/locales/bg_BG (t_fmt_ampm): Set to "" (empty string) because this locale does not use the 12-hour clock. * localedata/locales/cs_CZ (t_fmt_ampm): Likewise. * localedata/locales/sk_SK (t_fmt_ampm): Likewise.
* sq_AL: Use the correct date and time formats (bug 10496, 23724).Rafal Luzynski2018-12-282-4/+17
| | | | | | | | | | | | | | | | | | | | | Albanian locale uses the 12-hour clock but some time formats did not use any AM/PM indicator making the time ambiguous. This commit adds "%p" wherever it was missing. It also sets the correct date format because the old "%Y-%b-%d" produced rather weird results like "2018-Sht-28". All time formats come from CLDR but as few changes have been introduced by this commit as possible. Some articles from MSDN and other available online sources have been also taken into account. [BZ #10496] [BZ #23724] * localedata/locales/sq_AL (t_fmt): Set to "%I:%M:%S.%p %Z". (t_fmt_ampm): Likewise. (d_t_fmt): Set to "%a %-d %b %Y %I:%M:%S.%p". (date_fmt): Add, set to "%a %-d %b %Y %I:%M:%S.%p %Z". (d_fmt): Set to "%-d.%-m.%y".
* NEWS: Fix another typo ("multithread..." -> "multi-threaded...").Rafal Luzynski2018-12-281-1/+1
| | | | Thank you Florian Weimer and Paul Eggert for proofreading this.
* Replace check_mul_overflow_size_t with __builtin_mul_overflowAdhemerval Zanella2018-12-287-53/+21
| | | | | | | | | | | | | | | Checked on x86_64-linux-gnu and i686-linux-gnu. * malloc/alloc_buffer_alloc_array.c (__libc_alloc_buffer_alloc_array): Use __builtin_mul_overflow in place of check_mul_overflow_size_t. * malloc/dynarray_emplace_enlarge.c (__libc_dynarray_emplace_enlarge): Likewise. * malloc/dynarray_resize.c (__libc_dynarray_resize): Likewise. * malloc/reallocarray.c (__libc_reallocarray): Likewise. * malloc/malloc-internal.h (check_mul_overflow_size_t): Remove function. * support/blob_repeat.c (check_mul_overflow_size_t, (minimum_stride_size, support_blob_repeat_allocate): Likewise.
* Update Alpha libm-test-ulpsAurelien Jarno2018-12-282-40/+52
| | | | | Changelog: * sysdeps/alpha/fpu/libm-test-ulps: Regenerated.
* NEWS: Fix a minor typo ("incosistent" -> "inconsistent").Rafal Luzynski2018-12-281-1/+1
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* regex: simplify Gnulib portPaul Eggert2018-12-275-30/+23
| | | | | | | | | | | | | | This simplifies the code, by removing stuff intended for porting to Gnulib but no longer needed there. * posix/regcomp.c [!_LIBC]: No need to put #ifdef _LIBC around uses of libc_hidden_def, weak_alias. * posix/regcomp.c, posix/regexec.c: Use __restrict rather than _Restrict_ except for public-facing headers. * posix/regex_internal.h (attribute_hidden) [!_LIBC]: Remove; already defined elsewhere. * posix/regex.c, posix/regex_internal.h: Use __GNUC_PREREQ instead of rolling our own. * posix/regex_internal.h (__GNUC_PREREQ): Remove duplicate defn.
* Improve bench-strlenWilco Dijkstra2018-12-272-14/+25
| | | | | | | | | The current bench-strlen compares against a slow byte-oriented strlen which is not useful given it's too easy to beat. Remove it and compare against the generic C strlen version and memchr. * benchtests/bench-strlen.c (generic_strlen): New function. (memchr_strlen): New function.
* x86-64: Remove s_sincosf-sse2.SH.J. Lu2018-12-264-568/+8
| | | | | | | | | | | | | | The current s_sincosf.c is faster than s_sincosf-sse2.S. On Broadwell with FMA disabled, bench-sincosf shows: Before After Improvement max 154.032 114.517 34% min 6.25 5.609 11% mean 14.8728 12.8589 15% * sysdeps/x86_64/fpu/s_sincosf.S: Removed. * sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.S: Likewise. * sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.c: New file.
* Regenerate sysdeps/x86_64/fpu/libm-test-ulpsH.J. Lu2018-12-262-0/+10
| | | | * sysdeps/x86_64/fpu/libm-test-ulps: Regenerated.
* x86-64: Vectorize sincosf_poly and update s_sincosf-fma.cH.J. Lu2018-12-266-340/+278
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add <sincosf_poly.h> and include it in s_sincosf.h to allow vectorized sincosf_poly. Add x86 sincosf_poly.h to vectorize sincosf_poly. On Broadwell, bench-sincosf shows: Before After Improvement max 160.273 114.198 40% min 6.25 5.625 11% mean 13.0325 10.6462 22% Vectorized sincosf_poly shows Before After Improvement max 138.653 114.198 21% min 5.004 5.625 -11% mean 11.5934 10.6462 9% Tested on x86-64 and i686 as well as with build-many-glibcs.py. * sysdeps/ieee754/flt-32/s_sincosf.h: Include <sincosf_poly.h>. (sincos_t, sincosf_poly, sinf_poly): Moved to ... * sysdeps/ieee754/flt-32/sincosf_poly.h: Here. New file. * sysdeps/x86/fpu/s_sincosf_data.c: New file. * sysdeps/x86/fpu/sincosf_poly.h: Likewise. * sysdeps/x86_64/fpu/multiarch/s_sincosf-fma.c: Just include <sysdeps/ieee754/flt-32/s_sincosf.c>.
* Update nios2, sparc32 localplt.data for difftime changes (bug 24023).Joseph Myers2018-12-213-0/+11
| | | | | | | | | | | | | | | | | | | | | | The recent difftime changes introduced localplt test failures on nios2 and sparc32, two configurations where some soft-fp functions are defined in / exported from libc.so, and where the difftime changes affected the particular set of floating-point operations used in libc.so. This patch adds those functions to localplt.data, alongside other such functions already there. (In the sparc32 case, and more generally on any platform where long double is a software floating-point type, it would probably be more efficient to avoid using long double at all in difftime, but that's a pre-existing issue.) Tested with build-many-glibcs.py for its nios2 and sparcv9 configurations. [BZ #24023] * sysdeps/unix/sysv/linux/nios2/localplt.data: Allow __floatundidf PLT reference in libc.so. * sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data: Allow _Q_lltoq and _Q_qtod PLT references in libc.so.
* Refactor string benchtestsWilco Dijkstra2018-12-2122-207/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor string benchtests by moving duplicated defines into bench-string.h. * benchtests/bench-memchr.c: Cleanup defines. * benchtests/bench-memcmp.c: Likewise. * benchtests/bench-memset.c: Likewise. * benchtests/bench-memset-large.c: Likewise. * benchtests/bench-memset-walk.c: Likewise. * benchtests/bench-stpcpy.c: Likewise. * benchtests/bench-stpncpy.c: Likewise. * benchtests/bench-strcat.c: Likewise. * benchtests/bench-strchr.c: Likewise. * benchtests/bench-strcmp.c: Likewise. * benchtests/bench-strcpy.c: Likewise. * benchtests/bench-strcspn.c: Likewise. * benchtests/bench-string.h: Likewise. * benchtests/bench-strlen.c: Likewise. * benchtests/bench-strncat.c: Likewise. * benchtests/bench-strncmp.c: Likewise. * benchtests/bench-strncpy.c: Likewise. * benchtests/bench-strnlen.c: Likewise. * benchtests/bench-strpbrk.c: Likewise. * benchtests/bench-strrchr.c: Likewise. * benchtests/bench-strspn.c: Likewise.
* Update longlong.h.Joseph Myers2018-12-212-58/+59
| | | | | | | | | | | | | This patch updates longlong.h from GCC. There were no local changes in glibc (the previous version was identical to the r232143 GCC version, apart from copyright dates which had been updated in both places), so this patch makes it identical to the version in GCC again. Tested for x86_64 and x86. Also tested with build-many-glibcs.py for its RISC-V configurations, as the glibc architecture with the most substantial changes in longlong.h in this patch. * stdlib/longlong.h: Update from GCC.
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