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This is the mail archive of thelibc-alpha@sourceware.orgmailing list for theglibc project.
[PATCH v2 00/14] Remove sysdep-cancel assembly macro
- From: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- To: libc-alpha at sourceware dot org
- Date: Thu, 3 Aug 2017 10:11:00 -0300
- Subject: [PATCH v2 00/14] Remove sysdep-cancel assembly macro
- Authentication-results: sourceware.org; auth=none
Change from previous version [1] * Optimize the loader build for open, read, write, openat, and close calls to alias the default variant to no cancel one since for rtld object they are essentially the same (SYSCALL_CANCEL ends up always calling INLINE_SYSCALL_CALL). * Use the same convention for no status variant (for instance __close_nocancel_nostatus) and change its return to void. * Cleanup non cancellable pause sligt more: removed __pause_nocancel declaration from unistd (since it is now declared on not-errno.h header) and removed generic implementation (since the header routes to default implementation). * Removed the unrequired alias for no cancel sigsuspend on hurd.---This patchset finishes my previous work of Linux syscall consolidationand refactor to finally remove the requeriment of sysdeps-cancel.hassembly macros for cancellable syscalls. All ports now uses theSYSCALL_CANCEL macros with C implementation which in turn callsINLINE_SYSCALL macros.Besides simplify the curent code requirement, it also simplifypossible future ports to require only the C bindings and the directassembly one for syscalls.list autogeneration (another possiblework for future would be to use C generate binding to simplifyeven further the syscall requirements).I checked with a build for mostly supported architecture:aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabhi, i686-linux-gnu,ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu,mips{64,64n32}-linux-gnu, nios2-linux-gnu, powerpc{64,64le}-linux-gnu,s390{x}-linux-gnu, sh4-linux-gnu{-soft}, tile{pro,gx}-linux-gnu{-32},sparc{v9,64}-linux-gnu, and x86_64-linux-gnu.I also run a full make check on real hardware on aarch64-linux-gnu,arm-linux-gnueabihf, i686-linux-gnu, powerpc{64le}-linux-gnu,sparc{v9,64}-linux-gnu, and x86_64-linux-gnu{-x32}.[1]https://sourceware.org/ml/libc-alpha/2017-07/msg00105.htmlAdhemerval Zanella (14): Consolidate non cancellable open call Consolidate non cancellable read call Consolidate non cancellable write call Consolidate non cancellable openat call Consolidate non cancellable close call Consolidate non cancellable writev call Consolidate non cancellable fcntl call Consolidate non cancellable waitpid call Consolidate non cancellable pause call Consolidate non cancellable nanosleep call Remove non cancellable sigsuspend definition Fix {INLINE,INTERNAL}_SYSCALL macros for x32 Remove p{read,write}{v} and fallocate from x86 auto-generation list Remove cancellation support for syscall generation ChangeLog | 462 +++++++++++++++++++++ catgets/open_catalog.c | 8 +- csu/check_fds.c | 2 +- gmon/gmon.c | 22 +- iconv/gconv_cache.c | 6 +- include/unistd.h | 2 - intl/loadmsgcat.c | 6 +- io/ftw.c | 8 +- libio/fileops.c | 12 +- libio/iopopen.c | 4 +- locale/loadarchive.c | 12 +- locale/loadlocale.c | 12 +- login/utmp_file.c | 30 +- misc/daemon.c | 6 +- nptl/pthread_mutex_lock.c | 2 +- nptl/pthread_mutex_timedlock.c | 2 +- nscd/nscd_getai.c | 2 +- nscd/nscd_getgr_r.c | 2 +- nscd/nscd_gethst_r.c | 2 +- nscd/nscd_getpw_r.c | 2 +- nscd/nscd_getserv_r.c | 2 +- nscd/nscd_helper.c | 4 +- nscd/nscd_initgroups.c | 2 +- nscd/nscd_netgroup.c | 4 +- nss/nss_db/db-open.c | 4 +- resolv/herror.c | 2 +- resolv/res-close.c | 4 +- stdio-common/psiginfo.c | 2 +- sunrpc/pm_getmaps.c | 2 +- sysdeps/generic/not-cancel.h | 40 +- sysdeps/mach/hurd/opendir.c | 4 +- sysdeps/mach/hurd/sigsuspend.c | 1 - sysdeps/posix/closedir.c | 2 +- sysdeps/posix/getaddrinfo.c | 4 +- sysdeps/posix/getcwd.c | 8 +- sysdeps/posix/libc_fatal.c | 2 +- sysdeps/posix/opendir.c | 12 +- sysdeps/posix/pause.c | 15 - sysdeps/posix/spawni.c | 11 +- sysdeps/unix/make-syscalls.sh | 4 - sysdeps/unix/syscall-template.S | 7 +- sysdeps/unix/sysv/linux/Versions | 2 + sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h | 87 +--- sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h | 131 +----- sysdeps/unix/sysv/linux/arm/sysdep-cancel.h | 197 +-------- sysdeps/unix/sysv/linux/check_native.c | 2 +- sysdeps/unix/sysv/linux/check_pf.c | 2 +- sysdeps/unix/sysv/linux/close.c | 12 + sysdeps/unix/sysv/linux/fips-private.h | 6 +- sysdeps/unix/sysv/linux/gethostid.c | 12 +- sysdeps/unix/sysv/linux/getloadavg.c | 6 +- sysdeps/unix/sysv/linux/getlogin_r.c | 6 +- sysdeps/unix/sysv/linux/getsysstats.c | 16 +- sysdeps/unix/sysv/linux/grantpt.c | 6 +- sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h | 225 +--------- sysdeps/unix/sysv/linux/i386/smp.h | 6 +- sysdeps/unix/sysv/linux/i386/sysdep-cancel.h | 119 +----- sysdeps/unix/sysv/linux/ia64/has_cpuclock.c | 6 +- sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h | 194 +-------- sysdeps/unix/sysv/linux/if_index.c | 6 +- sysdeps/unix/sysv/linux/libc_fatal.c | 10 +- sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h | 108 +---- sysdeps/unix/sysv/linux/malloc-sysdep.h | 8 +- sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h | 116 +----- .../unix/sysv/linux/mips/mips64/sysdep-cancel.h | 249 ----------- sysdeps/unix/sysv/linux/mips/sysdep-cancel.h | 159 +------ sysdeps/unix/sysv/linux/mq_notify.c | 2 +- sysdeps/unix/sysv/linux/nanosleep.c | 9 + sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h | 110 +---- sysdeps/unix/sysv/linux/not-cancel.h | 118 +++--- sysdeps/unix/sysv/linux/open.c | 21 + sysdeps/unix/sysv/linux/open64.c | 38 +- sysdeps/unix/sysv/linux/openat.c | 20 + sysdeps/unix/sysv/linux/openat64.c | 36 +- sysdeps/unix/sysv/linux/pause.c | 14 +- sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c | 2 +- .../sysv/linux/powerpc/powerpc32/sysdep-cancel.h | 118 ------ .../sysv/linux/powerpc/powerpc64/sysdep-cancel.h | 147 ------- sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h | 38 ++ sysdeps/unix/sysv/linux/pthread_getname.c | 6 +- sysdeps/unix/sysv/linux/pthread_setname.c | 6 +- sysdeps/unix/sysv/linux/read.c | 12 + .../unix/sysv/linux/s390/s390-32/sysdep-cancel.h | 105 +---- .../unix/sysv/linux/s390/s390-64/sysdep-cancel.h | 109 +---- sysdeps/unix/sysv/linux/sh/sysdep-cancel.h | 136 +----- .../unix/sysv/linux/sparc/sparc32/sysdep-cancel.h | 111 ----- .../unix/sysv/linux/sparc/sparc64/sysdep-cancel.h | 109 ----- sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h | 38 ++ sysdeps/unix/sysv/linux/spawni.c | 8 +- sysdeps/unix/sysv/linux/sysconf.c | 6 +- sysdeps/unix/sysv/linux/tile/sysdep-cancel.h | 123 +----- sysdeps/unix/sysv/linux/waitpid.c | 15 +- sysdeps/unix/sysv/linux/write.c | 12 + sysdeps/unix/sysv/linux/x86_64/syscalls.list | 4 - sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h | 62 +-- sysdeps/unix/sysv/linux/x86_64/sysdep.h | 251 ++++++----- sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list | 1 - sysdeps/unix/sysv/linux/x86_64/x32/times.c | 24 +- 98 files changed, 1156 insertions(+), 3086 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h create mode 100644 sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h create mode 100644 sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h-- 2.7.4
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