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* Revert "Add INLINE_SYSCALL_RETURN/INLINE_SYSCALL_ERROR_RETURN"H.J. Lu2015-08-211-7/+3
| | | | This reverts commit 0c5b8b5941e036dcaac69cecee9f01fdf9218e6e.
* Add INLINE_SYSCALL_RETURN/INLINE_SYSCALL_ERROR_RETURNH.J. Lu2015-08-211-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For ia32 PIC, the first thing of many syscalls does is to call __x86.get_pc_thunk.reg to load PC into reg in case there is an error, which is required for setting errno. In most cases, there are no errors. But we still call __x86.get_pc_thunk.reg. This patch adds INLINE_SYSCALL_RETURN and INLINE_SYSCALL_ERROR_RETURN so that i386 can optimize setting errno by branching to the internal __syscall_error without PLT. INLINE_SYSCALL_ERROR_RETURN is designed to take the negative error number returned from the majority of Linux kernels for which negating is a no-op with INTERNAL_SYSCALL_ERRNO. With i386 INLINE_SYSCALL_RETURN, INLINE_SYSCALL_ERROR_RETURN and i386 syscall inlining optimization for GCC 5, for sysdeps/unix/sysv/linux/fchmodat.c with -O2 -march=i686 -mtune=generic, GCC 5.2 now generates: <fchmodat>: 0: push %ebx 1: mov 0x14(%esp),%eax 5: mov 0x8(%esp),%ebx 9: mov 0xc(%esp),%ecx d: mov 0x10(%esp),%edx 11: test $0xfffffeff,%eax 16: jne 38 <fchmodat+0x38> 18: test $0x1,%ah 1b: jne 48 <fchmodat+0x48> 1d: mov $0x132,%eax 22: call *%gs:0x10 29: cmp $0xfffff000,%eax 2e: ja 58 <fchmodat+0x58> 30: pop %ebx 31: ret 32: lea 0x0(%esi),%esi 38: pop %ebx 39: mov $0xffffffea,%eax 3e: jmp 3f <fchmodat+0x3f> 3f: R_386_PC32 __syscall_error 43: nop 44: lea 0x0(%esi,%eiz,1),%esi 48: pop %ebx 49: mov $0xffffffa1,%eax 4e: jmp 4f <fchmodat+0x4f> 4f: R_386_PC32 __syscall_error 53: nop 54: lea 0x0(%esi,%eiz,1),%esi 58: pop %ebx 59: jmp 5a <fchmodat+0x5a> 5a: R_386_PC32 __syscall_error instead of <fchmodat>: 0: sub $0x8,%esp 3: mov 0x18(%esp),%eax 7: mov %ebx,(%esp) a: call b <fchmodat+0xb> b: R_386_PC32 __x86.get_pc_thunk.bx f: add $0x2,%ebx 11: R_386_GOTPC _GLOBAL_OFFSET_TABLE_ 15: mov %edi,0x4(%esp) 19: test $0xfffffeff,%eax 1e: jne 70 <fchmodat+0x70> 20: test $0x1,%ah 23: jne 88 <fchmodat+0x88> 25: mov 0x14(%esp),%edx 29: mov 0x10(%esp),%ecx 2d: mov 0xc(%esp),%edi 31: xchg %ebx,%edi 33: mov $0x132,%eax 38: call *%gs:0x10 3f: xchg %edi,%ebx 41: cmp $0xfffff000,%eax 46: ja 58 <fchmodat+0x58> 48: mov (%esp),%ebx 4b: mov 0x4(%esp),%edi 4f: add $0x8,%esp 52: ret 53: nop 54: lea 0x0(%esi,%eiz,1),%esi 58: mov 0x0(%ebx),%edx 5a: R_386_TLS_GOTIE __libc_errno 5e: neg %eax 60: mov %eax,%gs:(%edx) 63: mov $0xffffffff,%eax 68: jmp 48 <fchmodat+0x48> 6a: lea 0x0(%esi),%esi 70: mov 0x0(%ebx),%eax 72: R_386_TLS_GOTIE __libc_errno 76: movl $0x16,%gs:(%eax) 7d: mov $0xffffffff,%eax 82: jmp 48 <fchmodat+0x48> 84: lea 0x0(%esi,%eiz,1),%esi 88: mov 0x0(%ebx),%eax 8a: R_386_TLS_GOTIE __libc_errno 8e: movl $0x5f,%gs:(%eax) 95: mov $0xffffffff,%eax 9a: jmp 48 <fchmodat+0x48> * sysdeps/unix/sysdep.h (INLINE_SYSCALL_RETURN): New. (INLINE_SYSCALL_ERROR_RETURN): Likewise. * sysdeps/unix/sysv/linux/adjtime.c (ADJTIME): Use INLINE_SYSCALL_RETURN and INLINE_SYSCALL_ERROR_RETURN. * sysdeps/unix/sysv/linux/aio_sigqueue.c (__aio_sigqueue): Likewise. * sysdeps/unix/sysv/linux/dl-openat64.c (openat64): Likewise. * sysdeps/unix/sysv/linux/eventfd.c (eventfd): Likewise. * sysdeps/unix/sysv/linux/faccessat.c (faccessat): Likewise. * sysdeps/unix/sysv/linux/fchmodat.c (fchmodat): Likewise. * sysdeps/unix/sysv/linux/fcntl.c (do_fcntl): Likewise. * sysdeps/unix/sysv/linux/fstatfs64.c (__fstatfs64): Likewise. * sysdeps/unix/sysv/linux/ftruncate64.c (__ftruncate64): Likewise. * sysdeps/unix/sysv/linux/futimens.c (futimens): Likewise. * sysdeps/unix/sysv/linux/futimes.c (__futimes): Likewise. * sysdeps/unix/sysv/linux/futimesat.c (futimesat): Likewise. * sysdeps/unix/sysv/linux/fxstat.c (__fxstat): Likewise. * sysdeps/unix/sysv/linux/fxstat64.c (___fxstat64): Likewise. * sysdeps/unix/sysv/linux/fxstatat.c (__fxstatat): Likewise. * sysdeps/unix/sysv/linux/fxstatat64.c (__fxstatat64): Likewise. * sysdeps/unix/sysv/linux/gai_sigqueue.c (__gai_sigqueue): Likewise. * sysdeps/unix/sysv/linux/getpriority.c (__getpriority): Likewise. * sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Likewise. * sysdeps/unix/sysv/linux/llseek.c (__llseek): Likewise. * sysdeps/unix/sysv/linux/lutimes.c (lutimes): Likewise. * sysdeps/unix/sysv/linux/lxstat.c (__lxstat): Likewise. * sysdeps/unix/sysv/linux/lxstat64.c (___lxstat64): Likewise. * sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Likewise. * sysdeps/unix/sysv/linux/mq_close.c (mq_close): Likewise. * sysdeps/unix/sysv/linux/mq_open.c (__mq_open): Likewise. * sysdeps/unix/sysv/linux/mq_unlink.c (mq_unlink): Likewise. * sysdeps/unix/sysv/linux/msgget.c (msgget): Likewise. * sysdeps/unix/sysv/linux/prlimit.c (prlimit): Likewise. * sysdeps/unix/sysv/linux/pt-raise.c (raise): Likewise. * sysdeps/unix/sysv/linux/raise.c (raise): Likewise. * sysdeps/unix/sysv/linux/readahead.c (__readahead): Likewise. * sysdeps/unix/sysv/linux/reboot.c (reboot): Likewise. * sysdeps/unix/sysv/linux/semget.c (semget): Likewise. * sysdeps/unix/sysv/linux/semop.c (semop): Likewise. * sysdeps/unix/sysv/linux/semtimedop.c (semtimedop): Likewise. * sysdeps/unix/sysv/linux/setrlimit64.c (setrlimit64): Likewise. * sysdeps/unix/sysv/linux/shmat.c (shmat): Likewise. * sysdeps/unix/sysv/linux/shmdt.c (shmdt): Likewise. * sysdeps/unix/sysv/linux/shmget.c (shmget): Likewise. * sysdeps/unix/sysv/linux/signalfd.c (signalfd): Likewise. * sysdeps/unix/sysv/linux/sigpending.c (sigpending): Likewise. * sysdeps/unix/sysv/linux/sigprocmask.c ( __sigprocmask): Likewise. * sysdeps/unix/sysv/linux/sigqueue.c (__sigqueue): Likewise. * sysdeps/unix/sysv/linux/speed.c (cfsetospeed): Likewise. * sysdeps/unix/sysv/linux/statfs64.c (__statfs64): Likewise. * sysdeps/unix/sysv/linux/sysctl.c (__sysctl): Likewise. * sysdeps/unix/sysv/linux/tcsendbrk.c (tcsendbreak): Likewise. * sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise. * sysdeps/unix/sysv/linux/timer_getoverr.c (timer_getoverrun): Likewise. * sysdeps/unix/sysv/linux/timer_gettime.c (timer_gettime): Likewise. * sysdeps/unix/sysv/linux/timer_settime.c (timer_settime): Likewise. * sysdeps/unix/sysv/linux/truncate64.c (truncate64): Likewise. * sysdeps/unix/sysv/linux/ustat.c (ustat): Likewise. * sysdeps/unix/sysv/linux/utimensat.c (utimensat): Likewise. * sysdeps/unix/sysv/linux/utimes.c (__utimes): Likewise. * sysdeps/unix/sysv/linux/xmknod.c (__xmknod): Likewise. * sysdeps/unix/sysv/linux/xmknodat.c (__xmknodat): Likewise. * sysdeps/unix/sysv/linux/xstat.c (__xstat): Likewise. * sysdeps/unix/sysv/linux/xstat64.c (___xstat64): Likewise. * sysdeps/unix/sysv/linux/xstatconv.c (__xstat_conv): Likewise. (__xstat64_conv): Likewise. (__xstat32_conv): Likewise. * sysdeps/unix/sysv/linux/sched_getaffinity.c (__sched_getaffinity_new): Add libc_hidden_proto and libc_hidden_def. Use INLINE_SYSCALL_ERROR_RETURN.
* Fix posix_spawn getrlimit64 namespace (bug 17991).Joseph Myers2015-02-181-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | posix_spawn (a standard POSIX function) brings in a use of getrlimit64 (not a standard POSIX function). This patch fixes this by using __getrlimit64 and making getrlimit64 a weak alias. This is more complicated than some such changes because of files that define getrlimit64 in their own way using symbol versioning after including the main sysdeps/unix/sysv/linux/getrlimit64.c with a getrlimit macro defined. There are various existing patterns for such cases in glibc; the one I've used here is that a getrlimit64 macro disables the weak_alias / libc_hidden_weak calls, leaving it to the including file to define the getrlimit64 name in whatever way is appropriate. Tested for x86_64 and x86 that installed stripped shared libraries are unchanged by this patch. [BZ #17991] * include/sys/resource.h (__getrlimit64): Declare. Use libc_hidden_proto. * resource/getrlimit64.c (getrlimit64): Rename to __getrlimit64 and define as weak alias of __getrlimit64. Use libc_hidden_weak. * sysdeps/posix/spawni.c (__spawni): Call __getrlimit64 instead of getrlimit64. * sysdeps/unix/sysv/linux/getrlimit64.c (getrlimit64): Rename to __getrlimit64. [!getrlimit64] (getrlimit64): Define as weak alias of __getrlimit64. Use libc_hidden_weak. * sysdeps/unix/sysv/linux/i386/getrlimit64.c (getrlimit64): Define using __getrlimit64 not __new_getrlimit64. (__GI_getrlimit64): Likewise. * sysdeps/unix/sysv/linux/mips/getrlimit64.c (getrlimit64): Likewise. (__GI_getrlimit64): Likewise. (__old_getrlimit64): Use __getrlimit64 not __new_getrlimit64. * sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list (getrlimit): Add __getrlimit64 alias. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (getrlimit): Likewise. * conform/Makefile (test-xfail-XOPEN2K/spawn.h/linknamespace): Remove variable. (test-xfail-POSIX2008/spawn.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/spawn.h/linknamespace): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
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* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
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* Replace FSF snail mail address with URLs.Paul Eggert2012-02-091-3/+2
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* Clean up PLT use for getrlimit64.Ulrich Drepper2011-01-131-1/+2
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* Use prlimit64 for 32-bit [gs]etrlimit64 implementation.Ulrich Drepper2010-12-251-0/+54
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* Update.Ulrich Drepper1999-12-181-28/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1999-12-17 Ulrich Drepper <drepper@cygnus.com> * string/bits/string2.h (__strtok_r_1c): Help gcc optimizing string access. * locale/programs/ld-collate.c: Implement handling of absolute ellipsis. Parsing of file and constructing the internal data structures should now be complete. (collate_finish): Start adding support to generate the data structures which are written out to the file. * intl/dcgettext.c: Rewrite to handle caching of previous results here instead of in the dcgettext macro. * intl/libintl.h (dcgettext): Don't define for systems using this glibc or systems with tsearch. * sysdeps/generic/mathdef.h: Protect definitions for math.h against double inclusion. * sysdeps/alpha/fpu/bits/mathdef.h: Likewise. * sysdeps/i386/fpu/bits/mathdef.h: Likewise. * sysdeps/m68k/fpu/bits/mathdef.h: Likewise. * sysdeps/powerpc/fpu/bits/mathdef.h: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Add more deltas (are mobile PIIs that different?). 1999-12-17 Andreas Jaeger <aj@suse.de> * rt/aio.h (struct aiocb64): Add member __next_prio to sync the struct with aiocb. * rt/Makefile (tests): Added tst-aio64. Added dependency rules for tst-aio64. * rt/tst-aio64.c: New file, copied from tst-aio.c and changed for 64bit tests. 1999-12-15 Thorsten Kukuk <kukuk@suse.de> * sysdeps/unix/sysv/linux/alpha/oldgetrlimit64.c: Removed. * sysdeps/unix/sysv/linux/alpha/oldsetrlimit64.c: Removed. * sysdeps/unix/sysv/linux/bits/resource.h: Change RLIM_INFINITY back to old value (signed long). * sysdeps/unix/sysv/linux/i386/bits/resource.h: New, with unsigned long RLIM_INFINITY. * sysdeps/unix/sysv/linux/getrlimit.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/getrlimit.c: ... here. * sysdeps/unix/sysv/linux/getrlimit64.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/getrlimit64.c: ... here. * sysdeps/unix/sysv/linux/oldgetrlimit64.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c: ... here. * sysdeps/unix/sysv/linux/oldsetrlimit64.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/oldsetrlimit64.c: ... here. * sysdeps/unix/sysv/linux/setrlimit.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/setrlimit.c: ... here. * sysdeps/unix/sysv/linux/setrlimit64.c: Moved from here to ... * sysdeps/unix/sysv/linux/i386/setrlimit64.c: ... here. * sysdeps/unix/sysv/linux/sparc/bits/resource.h: New. * sysdeps/unix/sysv/linux/sparc/sparc64/oldgetrlimit64.c: Removed. * sysdeps/unix/sysv/linux/sparc/sparc64/oldsetrlimit64.c: Removed. 1999-12-17 Andreas Jaeger <aj@suse.de> * elf/ldconfig.c: Add new option -l to manualy link shared libraries. (options): Added option. (parse_opt): Set option. (main): Handle option. (manual_link): New function. 1999-12-17 Thorsten Kukuk <kukuk@suse.de> * string/bits/string2.h: Fix patch from 1999-12-07. 1999-12-16 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/strsep.c: If delim string has only one character don't run over end of string. * locale/programs/ld-collate.c (insert_weights): Also update next pointer of last cursor element. (insert_value): Return nonzero value if nothing got inserted. (handle_ellipsis): Don't do anything if to-value cannot be inserted. 1999-12-10 Jakub Jelinek <jakub@redhat.com> * stdlib/longlong.h (__sparc_v9__): Use %rDIGIT instead of %DIGIT where appropriate. 1999-12-10 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction): Copy sa_flags into kernel sigaction structure. 1999-12-14 Andreas Jaeger <aj@suse.de> * string/tester.c (test_strsep): More tests for access beyond the final NUL. The first two tests come from PR libc/1486 by martinea@iro.umontreal.ca. 1999-12-14 Thorsten Kukuk <kukuk@suse.de> * nis/ypclnt.c: Correct handling of cached client handles. (__xdr_ypresp_all): Call callback function for errors, too, like Solaris does. * nis/nss_compat/compat-grp.c: Make sure errno is always set correct. * nis/nss_compat/compat-initgroups.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-ethers.c: Likewise. * nis/nss_nis/nis-grp.c: Likewise. * nis/nss_nis/nis-hosts.c: Likewise. * nis/nss_nis/nis-netgrp.c: Likewise. * nis/nss_nis/nis-publickey.c: Likewise. * nis/nss_nis/nis-service.c: Likewise. Also use services.byservicename Map if available, optimize query if name/port and protocol is known.
* Update.Ulrich Drepper1999-12-021-0/+28
1999-12-01 Andreas Jaeger <aj@suse.de> * sysdeps/generic/if_index.c (__protocol_available): Add missing int for parameter. * stdio/stdio.h: Fix typo. Patches by Marcus G. Daniels <mgd@santafe.edu>. 1999-12-01 Andreas Jaeger <aj@suse.de> * scripts/test-installation.pl (installation_problem): Filter out libpthread_db. 1999-12-01 Andreas Schwab <schwab@suse.de> * sysdeps/unix/sysv/linux/alpha/bits/types.h: Fix signedness of __rlim_t and __rlim64_t. * sysdeps/unix/sysv/linux/mips/bits/types.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/types.h: Likewise. 1999-12-01 Andreas Schwab <schwab@suse.de> * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add oldgetrlimit64 and oldsetrlimit64 for subdir = resource. * sysdeps/unix/sysv/linux/Versions: Add getrlimit, setrlimit, getrlimit64 and setrlimit64 to version GLIBC_2.1.3. * sysdeps/unix/sysv/linux/setrlimit.c: Correct handling of old and new kernel version. Add symbol versions. * sysdeps/unix/sysv/linux/syscalls.list: Add oldsetrlimit and oldgetrlimit. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Add s_getrlimit and s_ugetrlimit. * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/getrlimit.c: New file. * sysdeps/unix/sysv/linux/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/oldgetrlimit64.c: New file. * sysdeps/unix/sysv/linux/oldsetrlimit64.c: New file. * sysdeps/unix/sysv/linux/setrlimit64.c: New file. * sysdeps/unix/sysv/linux/alpha/oldgetrlimit64.c: New file. * sysdeps/unix/sysv/linux/alpha/oldsetrlimit64.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/oldgetrlimit64.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/oldsetrlimit64.c: New file.
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