From 9a0a462ceb4ab96c909b182f3052de2ef13fbe3a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 11 Sep 1997 12:09:10 +0000 Subject: Update. 1997-09-11 04:36 Ulrich Drepper * db2/db_int.h: Define __set_errno if not yet available. * db2/btree/bt_rec.c: Use __set_errno to set errno value. * db2/clib/getlong.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log_archive.c: Likewise. * elf/dl-profile.c: Implement mcount function. * gmon/gmon.c: Use __profil not profil because of namespace pollution. * gmon/mcount.c: Remove BSD kernel code. Use compare&swap instruction if possible to change state variable. Optimize frompc folding. * gmon/sys/gmon.h (struct gmonparam): Change state field to long int. * sysdeps/i386/i486/atomicity.h: New file. * sysdeps/stub/atomicity.h: New file. * sysdeps/mach/hurd/profil.c: Define function as __profil and make profil weak alias. * sysdeps/posix/profil.c: Likewise. * string/bits/string2.h: New file. * include/bits/string2.h: New file. * string/Makefile (routines): Add mempcpy. (tests): Add inl-tester. Remove _D__NO_STRING_INLINES from CFLAGS-* variables. * sysdeps/generic/mempcpy.c: New file. * sysdeps/generic/memccpy.c: Undef function name to enable definition as macro. * sysdeps/generic/memchr.c: Likewise. * sysdeps/generic/memcmp.c: Likewise. * sysdeps/generic/memmem.c: Likewise. * sysdeps/generic/memmove.c: Likewise. * sysdeps/generic/strcat.c: Likewise. * sysdeps/generic/strchr.c: Likewise. * sysdeps/generic/strcmp.c: Likewise. * sysdeps/generic/strcpy.c: Likewise. * sysdeps/generic/strcspn.c: Likewise. * sysdeps/generic/strlen.c: Likewise. * sysdeps/generic/strncat.c: Likewise. * sysdeps/generic/strncmp.c: Likewise. * sysdeps/generic/strncpy.c: Likewise. * sysdeps/generic/strpbrk.c: Likewise. * sysdeps/generic/strrchr.c: Likewise. * sysdeps/generic/strsep.c: Likewise. * sysdeps/generic/strspn.c: Likewise. * sysdeps/generic/strstr.c: Likewise. * sysdeps/generic/strtok.c: Likewise. * sysdeps/generic/strtok_r.c: Likewise. * sysdeps/i386/memset.c: Likewise. * sysdeps/i386/bits/string.h: Correct a few types and constraints. * sysdeps/i386/i486/bits/string.h: Heavy rewrites and optimizations. * string/stratcliff.c: Undefine __USE_STRING_INLINES. * string/tst-strlen.c: Likewise. * string/string.h: Add prototype for mempcpy. Include bits/string2.h header always if optimizing. * intl/dcgettext.c: Don't unconditionally define stpcpy, only if not yet defined. * intl/l10nflist.c: Likewise. * string/tester.c: Add copyright and make little cleanups. * inet/test_ifindex.c: Change type of ni variable to unsigned int. * locale/programs/ld-ctype.c (struct locale_ctype_t): Change type of fields map_collection_max and map_collection_act to size_t. * nss/libnss_files.map: Group entries. * posix/unistd.h: Add prototype for __setpgid and __profil. * sysdeps/generic/crypt.h: Declare __crypt_r. * sysdeps/i386/bits/select.h: Fix fatal bugs, use correct casts now. * sysdeps/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered): Optimize a bit. * sysdeps/stub/ftruncate.c: Include missing header for prototype. * sysdeps/stub/getdents.c: Likewise. * sysdeps/stub/reboot.c: Likewise. * sysdeps/stub/swapon.c: Likewise. * sysdeps/stub/syscall.c: Likewise. * sysdeps/stub/ualarm.c: Likewise. * sysdeps/stub/usleep.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Don't compile or use opensock if SIOGIFINDEX and SIOGIFNAME are not defined. * sysdeps/unix/sysv/linux/net/if.h: Add IFF_PORTSEL and IFF_AUTOMEDIA according to recent kernel changes. 1997-09-10 21:32 Klaus Espenlaub * Makeconfig: Use $(have-initfini) instead of $(elf) to figure out the installed name of the startup code. (common-generated): Add version.mk. * Makefile (distclean-1): Add glibcbug. * Makerules: Replace -lgcc by $(gnulib). * catgets/Makefile (generated): Add xmalloc.o. * csu/Makefile (generated): Replace align.h and end.h by defs.h to match the generated file. * manual/Makefile (mostlyclean): Add stub-manual and stamp.o. (realclean): Changed to remove chapters-incl[12]. * po/Makefile (realclean): New rule to remove the generated .mo files. * time/Makefile: Only include zonefile dependencies if $(no_deps) is not true to avoid make clean failure when directory time doesn't exist yet. (generated): Add tzselect. * stdio/fgets.c (fgets): Add casts to reduce gcc warning noise. * stdio/internals.c (flushbuf): Likewise. * stdio/linewrap.c (lwupdate): Likewise. * stdio/memstream.c (enlarge_buffer): Likewise. * stdio-common/vfscanf.c (_IO_vfscanf): Likewise. * time/tzset.c (compute_change): Likewise. * misc/init-misc.c (__init_misc): Only declare static if HAVE_GNU_LD is defined. * sysdeps/posix/pipestream.c (FUNC): Change to generate ANSI C style functions. * sysdeps/stub/init-posix.c: Likewise. * sysdeps/stub/profil.c: Likewise. * munch-tmpl.c (__libc_init): Convert to ANSI C style declaration to reduce gcc warning noise. * stdio/glue.c (_filbuf, _flsbuf): Likewise. * stdio/obstream.c (grow, seek, input, init_obstream): Likewise. * stdio/vasprintf.c (enlarge_buffer): Likewise. * sysdeps/generic/sysd-stdio.c (__stdio_read, __stdio_write, __stdio_seek, __stdio_close, __stdio_fileno, __stdio_open, __stdio_reopen): Likewise. * sysdeps/posix/defs.c (_cleanup): Likewise. * time/offtime.c (__offtime): Add cast. * posix/getopt.c: Don't use text_set_element if not defined. * configure.in: Provide a check for underscores before user labels that works even when the compiler used for building doesn't work (like when there is no C library). Use the old way if the compiler works. 1997-09-10 05:08 David S. Miller * sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: The TC* ioctls use 'T' not 't' on SparcLinux. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: tcflag_t is 32 bits. * sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add aliases for _longjmp and siglongjmp. 1997-09-09 Andreas Schwab * libio/stdio.h: Add format attributes to the extra printf and scanf like functions. * stdio/stdio.h: Likewise. 1997-09-09 Andreas Schwab * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Print tablename_val, not tablename_len. * nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r): Use sprintf instead of sprintf, the string always fits. * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_gethostbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_getprotobynumber_r): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_getrpcbynumber_r): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_getservbynumber_r): Likewise. * nis/nss_nisplus/nisplus-alias.c (_nss_create_tablename): Use __stpcpy, __stpncpy and __strdup instead of public names. * nis/nss_nisplus/nisplus-ethers.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-grp.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-hosts.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_parse_netgroup): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-pwd.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-spwd.c (_nss_create_tablename): Likewise. * libc.map: Export __stpcpy and __strdup. 1997-09-09 Andreas Schwab * math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c, CFLAGS-test-ldouble.c): Pass -ffloat-store to avoid excessive precision. 1997-09-09 Andreas Schwab * include/rpc/auth_des.h: New file. 1997-09-09 Paul Eggert * time/mktime.c (__mktime_internal): Declare sec_requested even if !LEAP_SECONDS_POSSIBLE, since it's needed at the end when checking for time_t overflow. 1997-09-09 22:11 Ulrich Drepper * sysdeps/posix/getcwd.c: Correct test for too small buffer. Reported by Erik Troan . * elf/dl-close.c: Include , not . * elf/dl-open.c: Likewise. 1997-09-07 17:09 Richard Henderson * sysdeps/alpha/Makefile: Kill setjmp_aux. * sysdeps/alpha/bits/setjmp.h: Rewrite in terms of an array. * sysdeps/alpha/__longjmp.c: Remove. * sysdeps/alpha/setjmp_aux.c: Remove. * sysdeps/alpha/__longjmp.S: New file. * sysdeps/alpha/bsd-_setjmp.S: Stub out. * sysdeps/alpha/bsd-setjmp.S: Likewise. * sysdeps/alpha/setjmp.S: Do the work; don't call __setjmp_aux. Move _setjmp and setjmp from bsd-*.S. 1997-09-06 20:20 Ulrich Drepper * include/rpc/auth.h: New file. * include/rpc/auth_unix.h: New file. 1997-09-06 Paul Eggert Fix gmtime so that it reports leap seconds when TZ indicates that leap seconds are desired. * time/gmtime.c (): Remove unnecessary include. (gmtime): Put after gmtime_r, to help the compiler inline. (__tz_convert): New decl. (gmtime_r): Use __tz_convert instead of __offtime, so that leap seconds are handled correctly. * time/localtime.c (, ): Remove includes that are now unnecessary. (__tzset_internal, __tz_compute, __tzfile_compute, __use_tzfile, __tzset_lock): Remove extern decls that are now unnecessary. (localtime_internal): Moved to __tz_convert in tzset.c. so that localtime and gmtime can both use it easily. (localtime): Put after localtime_r, to help the compiler inline. (localtime_r): Use __tz_convert instead of localtime_internal. * time/strftime.c (__tz_compute): Remove unused (and now incorrect) decl. * time/tzfile.c (__tzfile_compute): New arg USE_LOCALTIME. * time/tzset.c (): Include. (_tmbuf): New decl. (__tzfile_compute): New function. (tz_compute): Renamed from __tz_compute. No longer extern. Remove redundant call to tzset_internal. (tzset_internal): Renamed from __tzset_internal. No longer extern. (tzset_lock): Renamed from __tzset_lock. No longer extern. (__tz_convert): New function, containing functionality of old localtime_internal function, plus locking and optional UTC. 1997-09-06 Paul Eggert * time/tzfile.c (__tzfile_read): Don't read a file if TZ is the empty string, just use UTC without leap seconds. This is for compatibility with the Olson code. 1997-09-06 Paul Eggert * time/tzset.c (__tzname_max): Lock tz data structures before invoking tzset_internal. * time/tzfile.c: Define compute_tzname_max statically. 1997-09-07 10:57 Thorsten Kukuk * nis/nis_call.c: Remove not longer necessary HAVE_SECURE_RPC ifdefs. * nis/nis_intern.h: Likewise. * nis/nss_nis/nis-publickey.c: Likewise. * nis/nss_nisplus/nisplus-publickey.c: Likewise. * nis/ypclnt.c: Likewise. * sunrpc/auth_des.c: Don't dereference NULL pointer, initialize ad->ad_timediff. * sunrpc/auth_none.c: Don't define our own prototypes, use the one from the header files. * sunrpc/auth_unix.c: Likewise. * sunrpc/clnt_raw.c: Likewise. * sunrpc/clnt_tcp.c: Likewise. * sunrpc/rpc_cmsg.c: Likewise. * sunrpc/key_call.c: Fix signal handling. * sunrpc/openchild.c: Don't use /bin/sh to start /usr/etc/keyenvoy, or we will get a deadlock with NIS+. * sunrpc/rpc/auth.h: Add prototype for xdr_opaque_auth, don't define HAVE_SECURE_RPC. 1997-09-07 15:51 Ulrich Drepper * sysdeps/i386/bits/select.h [__GNUC__] (__FD_ZERO, __FD_SET, __FD_CLR, __FD_ISSET): Use correct casts to address array correctly. Reported by urbanw@cs.umu.se. 1997-09-07 05:07 Ulrich Drepper * elf/dl-close.c: Include , not . * elf/dl-open.c: Likewise. * sysdeps/i386/memset.c: Undefine memset in case the header with the optimized functions is included. Patches by NIIBE Yutaka . * sysdeps/i386/bits/string.h [__PIC__] (strcspn, strspn, strpbrk, strsep): Use register for second parameter. * sysdeps/i386/i486/bits/string.h: Likewise. Reported by NIIBE Yutaka . 1997-09-03 09:48 Geoff Keating * math/libm-test.c: Change various tolerances to match what the tested routines can actually provide. * math/Makefile: Add new tests. * math/atest-sincos.c: New file. * math/atest-exp.c: New file. * csu/Makefile: Give initfini.s and initfiniS.s their own CFLAGS-* macros so they can be overridden. * sysdeps/powerpc/Makefile [subdir=csu]: Override flags for initfiniS.s to use -fpic instead of -fPIC, because the sed script breaks otherwise. * sysdeps/powerpc/Makefile [build-shared]: Use -fpic not -fPIC for efficiency. * sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Don't use register 0, to let _mcount be in a shared object. * sysdeps/powerpc/dl-machine.h: Use full sentences in comments. Generally clean up. Suppress some code we don't need when relocating ld.so. * sysdeps/powerpc/test-arith.c: Change loop indices to size_t when appropriate to suppress gcc warning. * resolv/res_send.c: Suppress warning. * sunrpc/xdr_sizeof.c: Suppress warning. * FAQ: Add ppc-linux. * manual/maint.texi: Add ppc-linux. Explain that gcc can't build it yet. * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Correct for current kernels. 1997-08-15 07:45 Geoff Keating * stdlib/fmtmsg.c: Use two parameters for __libc_once_define. * sysdeps/i386/machine-gmon.h: Correct typo. * sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Change to match kernel. * sysdeps/generic/dl-sysdep.c: Add hook for bizzare PPC argument hack. * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Rewrite to use sysdeps/linux/dl-sysdep.c. * sysdeps/powerpc/Makefile [subdir=gmon]: Compile ppc-mcount. * sysdeps/powerpc/machine-gmon.h: Use ppc-mcount. * sysdeps/powerpc/ppc-mcount: New file. The following are mostly changes to allow profiling: * sysdeps/powerpc/add_n.S: Added. * sysdeps/powerpc/add_n.s: Removed. * sysdeps/powerpc/addmul_1.S: Added. * sysdeps/powerpc/addmul_1.s: Removed. * sysdeps/powerpc/bsd-_setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/bsd-setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/lshift.S: Added. * sysdeps/powerpc/lshift.s: Removed. * sysdeps/powerpc/memset.S: Added. * sysdeps/powerpc/memset.s: Removed. * sysdeps/powerpc/mul_1.S: Added. * sysdeps/powerpc/mul_1.s: Removed. * sysdeps/powerpc/rshift.S: Added. * sysdeps/powerpc/rshift.s: Removed. * sysdeps/powerpc/s_copysign.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/s_fabs.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/strchr.S: Added. * sysdeps/powerpc/strchr.s: Removed. * sysdeps/powerpc/strcmp.S: Added. * sysdeps/powerpc/strcmp.s: Removed. * sysdeps/powerpc/strlen.S: Added. * sysdeps/powerpc/strlen.s: Removed. * sysdeps/powerpc/sub_n.S: Added. * sysdeps/powerpc/sub_n.s: Removed. * sysdeps/powerpc/submul_1.S: Added. * sysdeps/powerpc/submul_1.s: Removed. * sysdeps/unix/sysv/linux/powerpc/_exit.S: Removed. * sysdeps/unix/sysv/linux/powerpc/brk.S: Added. * sysdeps/unix/sysv/linux/powerpc/brk.c: Removed. * sysdeps/unix/sysv/linux/powerpc/clone.S: Use new macros. Fix various bugs. Document that it isn't tested. * sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Make look like sysdeps/unix/_exit.S. * sysdeps/unix/sysv/linux/powerpc/socket.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/syscall.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Define some new macros to make assembler (possibly) more portable, allow profiling, etc. --- sysdeps/i386/bits/select.h | 15 +- sysdeps/i386/bits/string.h | 17 +- sysdeps/i386/fpu/bits/mathinline.h | 21 +- sysdeps/i386/i486/atomicity.h | 57 +++ sysdeps/i386/i486/bits/string.h | 850 +++++++++++++++++++++++++++++++------ sysdeps/i386/machine-gmon.h | 4 +- sysdeps/i386/memset.c | 2 + 7 files changed, 815 insertions(+), 151 deletions(-) create mode 100644 sysdeps/i386/i486/atomicity.h (limited to 'sysdeps/i386') diff --git a/sysdeps/i386/bits/select.h b/sysdeps/i386/bits/select.h index 8c9a5434b9..edcb562945 100644 --- a/sysdeps/i386/bits/select.h +++ b/sysdeps/i386/bits/select.h @@ -24,29 +24,30 @@ #if defined __GNUC__ && __GNUC__ >= 2 # define __FD_ZERO(fdsetp) \ - __asm__ __volatile__ ("cld ; rep ; stosl" \ - : "=m" (*(__fd_set *) (fdsetp)) \ + __asm__ __volatile__ ("cld; rep; stosl" \ + : "=m" (((__fd_mask *) \ + (fdsetp))[__FDELT (__FD_SETSIZE)]) \ : "a" (0), "c" (sizeof (__fd_set) \ / sizeof (__fd_mask)), \ "D" ((__fd_set *) (fdsetp)) \ :"cx","di") # define __FD_SET(fd, fdsetp) \ __asm__ __volatile__ ("btsl %1,%0" \ - : "=m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \ + : "=m" (((__fd_mask *) (fdsetp))[__FDELT (fd)]) \ : "r" (((int) (fd)) % __NFDBITS) \ : "cc") # define __FD_CLR(fd, fdsetp) \ __asm__ __volatile__ ("btrl %1,%0" \ - : "=m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \ + : "=m" (((__fd_mask *) (fdsetp))[__FDELT (fd)]) \ : "r" (((int) (fd)) % __NFDBITS) \ : "cc") # define __FD_ISSET(fd, fdsetp) \ (__extension__ \ - ({unsigned int __result; \ - __asm__ __volatile__ ("btl %1,%2 ; setcb %b0; andl $1,%0" \ + ({register char __result; \ + __asm__ __volatile__ ("btl %1,%2 ; setcb %b0" \ : "=q" (__result) \ : "r" (((int) (fd)) % __NFDBITS), \ - "m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \ + "m" (((__fd_mask *) (fdsetp))[__FDELT (fd)]) \ : "cc"); \ __result; })) diff --git a/sysdeps/i386/bits/string.h b/sysdeps/i386/bits/string.h index 254db3e7f3..2931684781 100644 --- a/sysdeps/i386/bits/string.h +++ b/sysdeps/i386/bits/string.h @@ -41,7 +41,7 @@ __STRING_INLINE void * __memcpy_c (void *__dest, __const void *__src, size_t __n) { - switch (n) + switch (__n) { case 0: return __dest; @@ -102,10 +102,10 @@ __memcpy_c (void *__dest, __const void *__src, size_t __n) "rep; movsl" \ x \ : /* no outputs */ \ - : "c" (n / 4), "D" (__dest), "S" (__src) \ + : "c" (__n / 4), "D" (__dest), "S" (__src) \ : "cx", "di", "si", "memory"); - switch (n % 4) + switch (__n % 4) { case 0: __COMMON_CODE (""); @@ -232,8 +232,7 @@ __memset_gg (void *__s, char __c, size_t __n) { __asm__ __volatile__ ("cld\n\t" - "rep\n\t" - "stosb" + "rep; stosb" : /* no output */ : "a" (__c),"D" (__s), "c" (__n) : "cx", "di", "memory"); @@ -518,7 +517,7 @@ strcspn (__const char *__s, __const char *__reject) "2:\n\t" "popl %%ebx" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__reject) + : "a" (0), "c" (0xffffffff), "0" (__s), "r" (__reject) : "ax", "cx", "di", "cc"); return (__res - 1) - __s; } @@ -577,7 +576,7 @@ strspn (__const char *__s, __const char *__accept) "2:\n\t" "popl %%ebx" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + : "a" (0), "c" (0xffffffff), "0" (__s), "r" (__accept) : "ax", "cx", "di", "cc"); return (__res - 1) - __s; } @@ -639,7 +638,7 @@ strpbrk (__const char *__s, __const char *__accept) "3:\n\t" "popl %%ebx" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + : "a" (0), "c" (0xffffffff), "0" (__s), "r" (__accept) : "ax", "cx", "di", "cc"); return __res; } @@ -704,7 +703,7 @@ strstr (__const char *__haystack, __const char *__needle) "2:\n\t" "popl %%ebx" : "=a" (__res) - : "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle) + : "0" (0), "c" (0xffffffff), "S" (__haystack), "r" (__needle) : "cx", "di", "si", "cc"); return __res; } diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h index 17f62a080f..55e9171459 100644 --- a/sysdeps/i386/fpu/bits/mathinline.h +++ b/sysdeps/i386/fpu/bits/mathinline.h @@ -28,43 +28,40 @@ These must not be inline functions since we have to be able to handle all floating-point types. */ # define isgreater(x, y) \ - ({ int __result; \ + ({ register char __result; \ __asm__ ("fucompp; fnstsw; testb $0x45, %%ah; setz %%al;" \ - "andl $0x01, %0" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) # define isgreaterequal(x, y) \ - ({ int __result; \ + ({ register char __result; \ __asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al;" \ - "andl $0x01, %0" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) # define isless(x, y) \ - ({ int __result; \ + ({ register char __result; \ __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x45, %%ah;" \ - "setz %%al; andl $0x01, %0" \ + "setz %%al" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) # define islessequal(x, y) \ - ({ int __result; \ + ({ register char __result; \ __asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x05, %%ah;" \ - "setz %%al; andl $0x01, %0" \ + "setz %%al" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) # define islessgreater(x, y) \ - ({ int __result; \ + ({ register char __result; \ __asm__ ("fucompp; fnstsw; testb $0x44, %%ah; setz %%al;" \ - "andl $0x01, %0" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) # define isunordered(x, y) \ - ({ int __result; \ - __asm__ ("fucompp; fnstsw; sahf; setp %%al; andl $0x01, %0" \ + ({ register char __result; \ + __asm__ ("fucompp; fnstsw; sahf; setp %%al" \ : "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \ __result; }) #endif diff --git a/sysdeps/i386/i486/atomicity.h b/sysdeps/i386/i486/atomicity.h new file mode 100644 index 0000000000..98a2531365 --- /dev/null +++ b/sysdeps/i386/i486/atomicity.h @@ -0,0 +1,57 @@ +/* Low-level functions for atomitc operations. ix86 version, x >= 4. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _ATOMICITY_H +#define _ATOMICITY_H 1 + +#include + + +static inline int +__attribute__ ((unused)) +exchange_and_add (volatile uint32_t *mem, int val) +{ + register int result; + __asm__ __volatile__ ("lock; xaddl %0,%1" + : "=r" (result) : "0" (val), "m" (*mem) : "memory"); + return result; +} + +static inline void +__attribute__ ((unused)) +atomic_add (volatile uint32_t *mem, int val) +{ + __asm__ __volatile__ ("lock; addl %0,%1" + : : "ir" (val), "m" (*mem) : "memory"); +} + +static inline int +__attribute__ ((unused)) +compare_and_swap (volatile long int *p, long int oldval, long int newval) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0" + : "=q" (ret), "=m" (*p), "=a" (readval) + : "r" (newval), "m" (*p), "a" (oldval)); + return ret; +} + +#endif /* atomicity.h */ diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h index f141bd50e1..770f5c1e15 100644 --- a/sysdeps/i386/i486/bits/string.h +++ b/sysdeps/i386/i486/bits/string.h @@ -32,16 +32,19 @@ /* Copy N bytes of SRC to DEST. */ +#define _HAVE_STRING_ARCH_memcpy 1 #define memcpy(dest, src, n) \ (__extension__ (__builtin_constant_p (n) \ ? __memcpy_c (dest, src, n) \ : __memcpy_g (dest, src, n))) #define __memcpy_c(dest, src, n) \ - (((n) % 4 == 0) \ - ? __memcpy_by4 (dest, src, n) \ - : (((n) % 2 == 0) \ - ? __memcpy_by2 (dest, src, n) \ - : __memcpy_g (dest, src, n))) + ((n) == 0 \ + ? (dest) \ + : (((n) % 4 == 0) \ + ? __memcpy_by4 (dest, src, n) \ + : (((n) % 2 == 0) \ + ? __memcpy_by2 (dest, src, n) \ + : __memcpy_g (dest, src, n)))) __STRING_INLINE void * __memcpy_by4 (void *__dest, __const void *__src, size_t __n) @@ -135,6 +138,7 @@ memmove (void *__dest, __const void *__src, size_t __n) /* Compare N bytes of S1 and S2. */ +#define _HAVE_STRING_ARCH_memcmp 1 #ifndef __PIC__ /* gcc has problems to spill registers when using PIC. */ __STRING_INLINE int @@ -157,6 +161,7 @@ memcmp (__const void *__s1, __const void *__s2, size_t __n) /* Set N bytes of S to C. */ +#define _HAVE_STRING_ARCH_memset 1 #define memset(s, c, n) \ (__extension__ (__builtin_constant_p (c) \ ? (__builtin_constant_p (n) \ @@ -166,17 +171,21 @@ memcmp (__const void *__s1, __const void *__s2, size_t __n) ? __memset_gc (s, c, n) \ : __memset_gg (s, c, n)))) #define __memset_cc(s, c, n) \ - (((n) % 4 == 0) \ - ? __memset_cc_by4 (s, c, n) \ - : (((n) % 2== 0) \ - ? __memset_cc_by2 (s, c, n) \ - : __memset_cg (s, c, n))) + ((n) == 0 \ + ? (s) \ + : (((n) % 4 == 0) \ + ? __memset_cc_by4 (s, c, n) \ + : (((n) % 2== 0) \ + ? __memset_cc_by2 (s, c, n) \ + : __memset_cg (s, c, n)))) #define __memset_gc(s, c, n) \ - (((n) % 4== 0) \ - ? __memset_gc_by4 (s, c, n) \ - : (((n) % 2 == 0) \ - ? __memset_gc_by2 (s, c, n) \ - : __memset_gg (s, c, n))) + ((n) == 0 \ + ? (s) \ + : (((n) % 4== 0) \ + ? __memset_gc_by4 (s, c, n) \ + : (((n) % 2 == 0) \ + ? __memset_gc_by2 (s, c, n) \ + : __memset_gg (s, c, n)))) __STRING_INLINE void * __memset_cc_by4 (void *__s, int __c, size_t __n) @@ -196,7 +205,7 @@ __memset_cc_by4 (void *__s, int __c, size_t __n) } __STRING_INLINE void * -__memset_cc_by2 (void *__s, char __c, size_t __n) +__memset_cc_by2 (void *__s, int __c, size_t __n) { register void *__tmp = __s; register int __dummy; @@ -217,7 +226,7 @@ __memset_cc_by2 (void *__s, char __c, size_t __n) } __STRING_INLINE void * -__memset_gc_by4 (void *__s, char __c, size_t __n) +__memset_gc_by4 (void *__s, int __c, size_t __n) { register void *__tmp = __s; register int __dummy; @@ -238,7 +247,7 @@ __memset_gc_by4 (void *__s, char __c, size_t __n) } __STRING_INLINE void * -__memset_gc_by2 (void *__s, char __c, size_t __n) +__memset_gc_by2 (void *__s, int __c, size_t __n) { register void *__tmp = __s; register int __dummy1, __dummy2; @@ -263,7 +272,7 @@ __memset_gc_by2 (void *__s, char __c, size_t __n) } __STRING_INLINE void * -__memset_cg (void *__s, char __c, size_t __n) +__memset_cg (void *__s, int __c, size_t __n) { register void *__tmp = __s; __asm__ __volatile__ @@ -279,7 +288,7 @@ __memset_cg (void *__s, char __c, size_t __n) } __STRING_INLINE void * -__memset_gg (void *__s, char __c, size_t __n) +__memset_gg (void *__s, int __c, size_t __n) { register void *__tmp = __s; __asm__ __volatile__ @@ -297,6 +306,7 @@ __memset_gg (void *__s, char __c, size_t __n) /* Search N bytes of S for C. */ +#define _HAVE_STRING_ARCH_memchr 1 __STRING_INLINE void * memchr (__const void *__s, int __c, size_t __n) { @@ -318,16 +328,21 @@ memchr (__const void *__s, int __c, size_t __n) /* Return the length of S. */ +#define _HAVE_STRING_ARCH_strlen 1 +#define strlen(str) \ + (__extension__ (__builtin_constant_p (str) \ + ? sizeof (str) - 1 \ + : __strlen_g (str))) __STRING_INLINE size_t -strlen (__const char *__str) +__strlen_g (__const char *__str) { register char __dummy; register __const char *__tmp = __str; __asm__ __volatile__ ("1:\n\t" - "movb (%0),%1\n\t" + "movb (%0),%b1\n\t" "leal 1(%0),%0\n\t" - "testb %1,%1\n\t" + "testb %b1,%b1\n\t" "jne 1b" : "=r" (__tmp), "=q" (__dummy) : "0" (__str) @@ -337,19 +352,25 @@ strlen (__const char *__str) /* Copy SRC to DEST. */ +#define _HAVE_STRING_ARCH_strcpy 1 +#define strcpy(dest, src) \ + (__extension__ (__builtin_constant_p (src) \ + ? (char *) memcpy (dest, src, strlen (src) + 1) \ + : __strcpy_g (dest, src))) + __STRING_INLINE char * -strcpy (char *__dest, __const char *__src) +__strcpy_g (char *__dest, __const char *__src) { register char *__tmp = __dest; register char __dummy; __asm__ __volatile__ ( "1:\n\t" - "movb (%0),%2\n\t" - "incl %0\n\t" - "movb %2,(%1)\n\t" - "incl %1\n\t" - "testb %2,%2\n\t" + "movb (%0),%b2\n\t" + "leal 1(%0),%0\n\t" + "movb %b2,(%1)\n\t" + "leal 1(%1),%1\n\t" + "testb %b2,%b2\n\t" "jne 1b" : "=r" (__src), "=r" (__tmp), "=q" (__dummy) : "0" (__src), "1" (__tmp) @@ -358,9 +379,233 @@ strcpy (char *__dest, __const char *__src) } +#ifdef __USE_GNU +# define _HAVE_STRING_ARCH_stpcpy 1 +/* Copy SRC to DEST. */ +# define __stpcpy(dest, src) \ + (__extension__ (__builtin_constant_p (src) \ + ? (strlen (src) + 1 <= 8 \ + ? __stpcpy_small (dest, src, strlen (src) + 1) \ + : __stpcpy_c (dest, src, strlen (src) + 1)) \ + : __stpcpy_g (dest, src))) +# define __stpcpy_c(dest, src, srclen) \ + ((srclen) % 4 == 0 \ + ? __mempcpy_by4 (dest, src, srclen) \ + : ((srclen) % 2 == 0 \ + ? __mempcpy_by2 (dest, src, srclen) \ + : __mempcpy_byn (dest, src, srclen))) + +/* In glibc itself we use this symbol for namespace reasons. */ +# define stpcpy(dest, src) __stpcpy (dest, src) + +__STRING_INLINE char * +__stpcpy_small (char *__dest, __const char __src[], size_t __srclen) +{ + register char *__tmp = __dest; + switch (__srclen) + { + case 7: + *((unsigned short int *) __tmp)++ = *((unsigned short int *) __src)++; + case 5: + *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; + *((unsigned char *) __tmp) = '\0'; + return __tmp; + + case 8: + *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; + case 4: + *((unsigned int *) __tmp) = *((unsigned int *) __src); + return __tmp + 3; + + case 6: + *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; + case 2: + *((unsigned short int *) __tmp) = *((unsigned short int *) __src); + return __tmp + 1; + + case 3: + *((unsigned short int *) __tmp)++ = *((unsigned short int *) __src)++; + case 1: + *((unsigned char *) __tmp) = '\0'; + return __tmp; + + default: + break; + } + /* This should never happen. */ + return NULL; +} + +__STRING_INLINE char * +__mempcpy_by4 (char *__dest, __const char *__src, size_t __srclen) +{ + register char *__tmp = __dest; + register int __dummy1, __dummy2; + __asm__ __volatile__ + ("1:\n\t" + "movl (%2),%0\n\t" + "leal 4(%2),%2\n\t" + "movl %0,(%1)\n\t" + "leal 4(%1),%1\n\t" + "decl %3\n\t" + "jnz 1b" + : "=r" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2) + : "1" (__tmp), "2" (__src), "3" (__srclen / 4) + : "memory", "cc"); + return __tmp - 1; +} + +__STRING_INLINE char * +__mempcpy_by2 (char *__dest, __const char *__src, size_t __srclen) +{ + register char *__tmp = __dest; + register int __dummy1, __dummy2; + __asm__ __volatile__ + ("shrl $1,%3\n\t" + "jz 2f\n" /* only a word */ + "1:\n\t" + "movl (%2),%0\n\t" + "leal 4(%2),%2\n\t" + "movl %0,(%1)\n\t" + "leal 4(%1),%1\n\t" + "decl %3\n\t" + "jnz 1b\n" + "2:\n\t" + "movw (%2),%w0\n\t" + "movw %w0,(%1)" + : "=q" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2) + : "1" (__tmp), "2" (__src), "3" (__srclen / 2) + : "memory", "cc"); + return __tmp + 1; +} + +__STRING_INLINE char * +__mempcpy_byn (char *__dest, __const char *__src, size_t __srclen) +{ + register char *__tmp = __dest; + __asm__ __volatile__ + ("cld\n\t" + "shrl $1,%%ecx\n\t" + "jnc 1f\n\t" + "movsb\n" + "1:\n\t" + "shrl $1,%%ecx\n\t" + "jnc 2f\n\t" + "movsw\n" + "2:\n\t" + "rep; movsl" + : "=D" (__tmp) + : "c" (__srclen), "0" (__tmp),"S" (__src) + : "cx", "di", "si", "memory", "cc"); + return __tmp - 1; +} + +__STRING_INLINE char * +__stpcpy_g (char *__dest, __const char *__src) +{ + register char *__tmp = __dest; + register char __dummy; + __asm__ __volatile__ + ( + "1:\n\t" + "movb (%0),%b2\n\t" + "leal 1(%0),%0\n\t" + "movb %b2,(%1)\n\t" + "leal 1(%1),%1\n\t" + "testb %b2,%b2\n\t" + "jne 1b" + : "=r" (__src), "=r" (__tmp), "=q" (__dummy) + : "0" (__src), "1" (__tmp) + : "memory", "cc"); + return __tmp - 1; +} +#endif + + /* Copy no more than N characters of SRC to DEST. */ +#define _HAVE_STRING_ARCH_strncpy 1 +#define strncpy(dest, src, n) \ + (__extension__ (__builtin_constant_p (src) \ + ? ((strlen (src) + 1 >= ((size_t) (n)) \ + ? (char *) memcpy (dest, src, n) \ + : __strncpy_cg (dest, src, strlen (src) + 1, n))) \ + : __strncpy_gg (dest, src, n))) +#define __strncpy_cg(dest, src, srclen, n) \ + (((srclen) % 4 == 0) \ + ? __strncpy_by4 (dest, src, srclen, n) \ + : (((srclen) % 2 == 0) \ + ? __strncpy_by2 (dest, src, srclen, n) \ + : __strncpy_byn (dest, src, srclen, n))) + +__STRING_INLINE char * +__strncpy_by4 (char *__dest, __const char __src[], size_t __srclen, size_t __n) +{ + register char *__tmp = __dest; + register int __dummy1, __dummy2; + __asm__ __volatile__ + ("1:\n\t" + "movl (%2),%0\n\t" + "leal 4(%2),%2\n\t" + "movl %0,(%1)\n\t" + "leal 4(%1),%1\n\t" + "decl %3\n\t" + "jnz 1b" + : "=r" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2) + : "1" (__tmp), "2" (__src), "3" (__srclen / 4) + : "memory", "cc"); + (void) memset (__tmp, '\0', __n - __srclen); + return __dest; +} + __STRING_INLINE char * -strncpy (char *__dest, __const char *__src, size_t __n) +__strncpy_by2 (char *__dest, __const char __src[], size_t __srclen, size_t __n) +{ + register char *__tmp = __dest; + register int __dummy1, __dummy2; + __asm__ __volatile__ + ("shrl $1,%3\n\t" + "jz 2f\n" /* only a word */ + "1:\n\t" + "movl (%2),%0\n\t" + "leal 4(%2),%2\n\t" + "movl %0,(%1)\n\t" + "leal 4(%1),%1\n\t" + "decl %3\n\t" + "jnz 1b\n" + "2:\n\t" + "movw (%2),%w0\n\t" + "movw %w0,(%1)\n\t" + : "=q" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2) + : "1" (__tmp), "2" (__src), "3" (__srclen / 2) + : "memory", "cc"); + (void) memset (__tmp + 2, '\0', __n - __srclen); + return __dest; +} + +__STRING_INLINE char * +__strncpy_byn (char *__dest, __const char __src[], size_t __srclen, size_t __n) +{ + register char *__tmp = __dest; + __asm__ __volatile__ + ("cld\n\t" + "shrl $1,%%ecx\n\t" + "jnc 1f\n\t" + "movsb\n" + "1:\n\t" + "shrl $1,%%ecx\n\t" + "jnc 2f\n\t" + "movsw\n" + "2:\n\t" + "rep; movsl" + : "=D" (__tmp) + : "c" (__srclen), "0" (__tmp),"S" (__src) + : "cx", "di", "si", "memory", "cc"); + (void) memset (__tmp, '\0', __n - __srclen); + return __dest; +} + +__STRING_INLINE char * +__strncpy_gg (char *__dest, __const char *__src, size_t __n) { register char *__tmp = __dest; register char __dummy; @@ -390,14 +635,35 @@ strncpy (char *__dest, __const char *__src, size_t __n) /* Append SRC onto DEST. */ +#define _HAVE_STRING_ARCH_strcat 1 +#define strcat(dest, src) \ + (__extension__ (__builtin_constant_p (src) \ + ? __strcat_c (dest, src, strlen (src) + 1) \ + : __strcat_g (dest, src))) + +__STRING_INLINE char * +__strcat_c (char *__dest, __const char __src[], size_t __srclen) +{ + register char *__tmp = __dest - 1; + __asm__ __volatile__ + ("1:\n\t" + "incl %0\n\t" + "cmpb $0,(%0)\n\t" + "jne 1b\n" + : "=r" (__tmp) + : "0" (__tmp) + : "cc"); + (void) memcpy (__tmp, __src, __srclen); + return __dest; +} + __STRING_INLINE char * -strcat (char *__dest, __const char *__src) +__strcat_g (char *__dest, __const char *__src) { register char *__tmp = __dest - 1; register char __dummy; __asm__ __volatile__ - ( - "1:\n\t" + ("1:\n\t" "incl %1\n\t" "cmpb $0,(%1)\n\t" "jne 1b\n" @@ -416,16 +682,23 @@ strcat (char *__dest, __const char *__src) /* Append no more than N characters from SRC onto DEST. */ +#define _HAVE_STRING_ARCH_strncat 1 +#define strncat(dest, src, n) \ + (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \ + ? (strlen (src) < ((size_t) (n)) \ + ? strcat (dest, src) \ + : (memcpy (strchr (dest, '\0'), src, n), dest)) \ + : __strncat_g (dest, src, n))) + __STRING_INLINE char * -strncat (char *__dest, __const char *__src, size_t __n) +__strncat_g (char *__dest, __const char __src[], size_t __n) { register char *__tmp = __dest - 1; register char __dummy; __asm__ __volatile__ - ( - "1:\n\t" - "incl %1\n\t" - "cmpb $0,(%1)\n\t" + ("1:\n\t" + "cmpb $0,1(%1)\n\t" + "leal 1(%1),%1\n\t" "jne 1b\n" "2:\n\t" "decl %3\n\t" @@ -435,7 +708,8 @@ strncat (char *__dest, __const char *__src, size_t __n) "movb %b0,(%1)\n\t" "leal 1(%1),%1\n\t" "testb %b0,%b0\n\t" - "jne 2b\n" + "jne 2b\n\t" + "decl %1\n" "3:\n\t" "movb $0,(%1)\n\t" : "=q" (__dummy), "=r" (__tmp), "=r" (__src), "=r" (__n) @@ -446,6 +720,7 @@ strncat (char *__dest, __const char *__src, size_t __n) /* Compare S1 and S2. */ +#define _HAVE_STRING_ARCH_strcmp 1 __STRING_INLINE int strcmp (__const char *__s1, __const char *__s2) { @@ -474,8 +749,16 @@ strcmp (__const char *__s1, __const char *__s2) /* Compare N characters of S1 and S2. */ +#define _HAVE_STRING_ARCH_strncmp 1 +#define strncmp(s1, s2, n) \ + (__extension__ (__builtin_constant_p (s1) && strlen (s1) < ((size_t) (n)) \ + ? strcmp (s1, s2) \ + : (__builtin_constant_p (s2) && strlen (s2) < ((size_t) (n))\ + ? strcmp (s1, s2) \ + : __strncmp_g (s1, s2, n)))) + __STRING_INLINE int -strncmp (__const char *__s1, __const char *__s2, size_t __n) +__strncmp_g (__const char *__s1, __const char *__s2, size_t __n) { register int __res; __asm__ __volatile__ @@ -505,18 +788,18 @@ strncmp (__const char *__s1, __const char *__s2, size_t __n) /* Find the first occurrence of C in S. */ +#define _HAVE_STRING_ARCH_strchr 1 #define strchr(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? __strchr_c (s, ((c) & 0xff) << 8) \ : __strchr_g (s, c))) __STRING_INLINE char * -__strchr_g (__const char *__s, int __c) +__strchr_c (__const char *__s, int __c) { register char *__res; __asm__ __volatile__ - ("movb %%al,%%ah\n" - "1:\n\t" + ("1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" @@ -532,11 +815,12 @@ __strchr_g (__const char *__s, int __c) } __STRING_INLINE char * -__strchr_c (__const char *__s, int __c) +__strchr_g (__const char *__s, int __c) { register char *__res; __asm__ __volatile__ - ("1:\n\t" + ("movb %%al,%%ah\n" + "1:\n\t" "movb (%0),%%al\n\t" "cmpb %%ah,%%al\n\t" "je 2f\n\t" @@ -553,18 +837,56 @@ __strchr_c (__const char *__s, int __c) /* Find the last occurrence of C in S. */ +#define _HAVE_STRING_ARCH_strrchr 1 #define strrchr(s, c) \ (__extension__ (__builtin_constant_p (c) \ ? __strrchr_c (s, ((c) & 0xff) << 8) \ : __strrchr_g (s, c))) +#ifdef __i686__ +__STRING_INLINE char * +__strrchr_c (__const char *__s, int __c) +{ + register char *__res; + __asm__ __volatile__ + ("cld\n" + "1:\n\t" + "lodsb\n\t" + "cmpb %%ah,%%al\n\t" + "cmovne %%esi,%0\n\t" + "testb %%al,%%al\n\t" + "jne 1b" + : "=d" (__res) + : "0" (1), "S" (__s),"a" (__c) + : "ax", "si", "cc"); + return __res - 1; +} + __STRING_INLINE char * __strrchr_g (__const char *__s, int __c) { register char *__res; __asm__ __volatile__ - ("cld\n\t" - "movb %%al,%%ah\n" + ("movb %%al,%%ah\n" + "cld\n\t" + "1:\n\t" + "lodsb\n\t" + "cmpb %%ah,%%al\n\t" + "cmovne %%esi,%0\n\t" + "testb %%al,%%al\n\t" + "jne 1b" + : "=r" (__res) + : "0" (1), "S" (__s),"a" (__c) + : "ax", "si", "cc"); + return __res - 1; +} +#else +__STRING_INLINE char * +__strrchr_c (__const char *__s, int __c) +{ + register char *__res; + __asm__ __volatile__ + ("cld\n" "1:\n\t" "lodsb\n\t" "cmpb %%ah,%%al\n\t" @@ -580,11 +902,12 @@ __strrchr_g (__const char *__s, int __c) } __STRING_INLINE char * -__strrchr_c (__const char *__s, int __c) +__strrchr_g (__const char *__s, int __c) { register char *__res; __asm__ __volatile__ - ("cld\n\t" + ("movb %%al,%%ah\n" + "cld\n\t" "1:\n\t" "lodsb\n\t" "cmpb %%ah,%%al\n\t" @@ -593,66 +916,140 @@ __strrchr_c (__const char *__s, int __c) "2:\n\t" "testb %%al,%%al\n\t" "jne 1b" - : "=d" (__res) + : "=r" (__res) : "0" (0), "S" (__s),"a" (__c) : "ax", "si", "cc"); return __res; } +#endif /* Return the length of the initial segment of S which consists entirely of characters not in REJECT. */ -#ifdef __PIC__ +#define _HAVE_STRING_ARCH_strcspn 1 +#define strcspn(s, reject) \ + (__extension__ (__builtin_constant_p (reject) && sizeof ((reject)[0]) == 1 \ + ? ((reject)[0] == '\0' \ + ? strlen (s) \ + : ((reject)[1] == '\0' \ + ? __strcspn_c1 (s, (((reject)[0] << 8) & 0xff00)) \ + : __strcspn_cg (s, reject, strlen (reject)))) \ + : __strcspn_g (s, reject))) + __STRING_INLINE size_t -strcspn (__const char *__s, __const char *__reject) +__strcspn_c1 (__const char *__s, int __reject) { register char *__res; __asm__ __volatile__ - ("push %%ebx\n\t" - "cld\n\t" + ("1:\n\t" + "movb (%0),%%al\n\t" + "leal 1(%0),%0\n\t" + "cmpb %%ah,%%al\n\t" + "je 2f\n\t" + "testb %%al,%%al\n\t" + "jne 1b\n" + "2:" + : "=r" (__res) + : "a" (__reject), "0" (__s) + : "ax", "cc"); + return (__res - 1) - __s; +} + +#ifdef __PIC__ +__STRING_INLINE size_t +__strcspn_cg (__const char *__s, __const char __reject[], size_t __reject_len) +{ + register __const char *__res; + int __mem; + __asm__ __volatile__ + ("movl %%ebx,%1\n\t" + "movl %%ecx,%%ebx\n\t" + "cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" "movl %4,%%edi\n\t" + "movl %%ebx,%%ecx\n\t" + "repne; scasb\n\t" + "jne 1b\n" + "2:\n\t" + "movl %1,%%ebx" + : "=S" (__res), "=&m" (__mem) + : "c" (__reject_len), "0" (__s), "r" (__reject), "1" (__mem) + : "ax", "cx", "di", "cc"); + return (__res - 1) - __s; +} + +__STRING_INLINE size_t +__strcspn_g (__const char *__s, __const char *__reject) +{ + register __const char *__res; + int __mem; + __asm__ __volatile__ + ("movl %%ebx,%1\n\t" + "movl %5,%%edi\n\t" + "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%ebx\n" + "leal -1(%%ecx),%%ebx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %5,%%edi\n\t" "movl %%ebx,%%ecx\n\t" "repne; scasb\n\t" "jne 1b\n" "2:\n\t" - "popl %%ebx" - : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__reject) + "movl %1,%%ebx" + : "=S" (__res), "=&m" (__mem) + : "a" (0), "c" (0xffffffff), "0" (__s), "r" (__reject), "1" (__mem) : "ax", "cx", "di", "cc"); return (__res - 1) - __s; } #else __STRING_INLINE size_t -strcspn (__const char *__s, __const char *__reject) +__strcspn_cg (__const char *__s, __const char __reject[], size_t __reject_len) { - register char *__res; + register __const char *__res; + __asm__ __volatile__ + ("cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %%ebx,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne; scasb\n\t" + "jne 1b\n" + "2:" + : "=S" (__res) + : "d" (__reject_len), "0" (__s), "b" (__reject) + : "ax", "cx", "di", "cc"); + return (__res - 1) - __s; +} + +__STRING_INLINE size_t +__strcspn_g (__const char *__s, __const char *__reject) +{ + register __const char *__res; __asm__ __volatile__ ("cld\n\t" - "movl %4,%%edi\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%edx\n" + "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %%ebx,%%edi\n\t" "movl %%edx,%%ecx\n\t" "repne; scasb\n\t" "jne 1b\n" "2:" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__reject) + : "a" (0), "c" (0xffffffff), "0" (__s), "b" (__reject), "D" (__reject) : "ax", "cx", "dx", "di", "cc"); return (__res - 1) - __s; } @@ -661,57 +1058,129 @@ strcspn (__const char *__s, __const char *__reject) /* Return the length of the initial segment of S which consists entirely of characters in ACCEPT. */ -#ifdef __PIC__ +#define _HAVE_STRING_ARCH_strspn 1 +#define strspn(s, accept) \ + (__extension__ (__builtin_constant_p (accept) && sizeof ((accept)[0]) == 1 \ + ? ((accept)[0] == '\0' \ + ? 0 \ + : ((accept)[1] == '\0' \ + ? __strspn_c1 (s, (((accept)[0] << 8 ) & 0xff00)) \ + : __strspn_cg (s, accept, strlen (accept)))) \ + : __strspn_g (s, accept))) + __STRING_INLINE size_t -strspn (__const char *__s, __const char *__accept) +__strspn_c1 (__const char *__s, int __accept) { register char *__res; + /* Please note that __accept never can be '\0'. */ __asm__ __volatile__ - ("pushl %%ebx\n\t" + ("1:\n\t" + "movb (%0),%%al\n\t" + "leal 1(%0),%0\n\t" + "cmpb %%ah,%%al\n\t" + "je 1b\n" + "2:" + : "=r" (__res) + : "a" (__accept), "0" (__s) + : "ax", "cc"); + return (__res - 1) - __s; +} + +#ifdef __PIC__ +__STRING_INLINE size_t +__strspn_cg (__const char *__s, __const char __accept[], size_t __accept_len) +{ + register __const char *__res; + int __mem; + __asm__ __volatile__ + ("movl %%ebx,%1\n\t" + "movl %%ecx,%%ebx\n\t" + "cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %%edx,%%edi\n\t" + "movl %%ebx,%%ecx\n\t" + "repne; scasb\n\t" + "je 1b\n" + "2:\n\t" + "movl %1,%%ebx" + : "=S" (__res), "=m" (__mem) + : "c" (__accept_len), "0" (__s), "d" (__accept), "1" (__mem) + : "ax", "cx", "di", "cc"); + return (__res - 1) - __s; +} + +__STRING_INLINE size_t +__strspn_g (__const char *__s, __const char *__accept) +{ + register __const char *__res; + int __mem; + __asm__ __volatile__ + ("movl %%ebx,%1\n\t" "cld\n\t" - "movl %4,%%edi\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%ebx\n" + "leal -1(%%ecx),%%ebx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %%edx,%%edi\n\t" "movl %%ebx,%%ecx\n\t" "repne; scasb\n\t" "je 1b\n" "2:\n\t" - "popl %%ebx" - : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + "movl %1,%%ebx" + : "=S" (__res), "=m" (__mem) + : "a" (0), "c" (0xffffffff), "0" (__s), "d" (__accept), "1" (__mem), + "D" (__accept) : "ax", "cx", "di", "cc"); return (__res - 1) - __s; } #else __STRING_INLINE size_t -strspn (__const char *__s, __const char *__accept) +__strspn_cg (__const char *__s, __const char __accept[], size_t __accept_len) { - register char *__res; + register __const char *__res; + __asm__ __volatile__ + ("cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %%ebx,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne; scasb\n\t" + "je 1b\n" + "2:" + : "=S" (__res) + : "d" (__accept_len), "0" (__s), "b" (__accept), "D" (__accept) + : "ax", "cx", "dx", "di", "cc"); + return (__res - 1) - __s; +} + +__STRING_INLINE size_t +__strspn_g (__const char *__s, __const char *__accept) +{ + register __const char *__res; __asm__ __volatile__ ("cld\n\t" - "movl %4,%%edi\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%edx\n" + "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %%ebx,%%edi\n\t" "movl %%edx,%%ecx\n\t" "repne; scasb\n\t" "je 1b\n" "2:" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + : "a" (0), "c" (0xffffffff), "0" (__s), "b" (__accept), "D" (__accept) : "ax", "cx", "dx", "di", "cc"); return (__res - 1) - __s; } @@ -719,24 +1188,63 @@ strspn (__const char *__s, __const char *__accept) /* Find the first occurrence in S of any character in ACCEPT. */ +#define _HAVE_STRING_ARCH_strpbrk 1 +#define strpbrk(s, accept) \ + (__extension__ (__builtin_constant_p (accept) && sizeof ((accept)[0]) == 1 \ + ? ((accept)[0] == '\0' \ + ? NULL \ + : ((accept)[1] == '\0' \ + ? strchr (s, (accept)[0]) \ + : __strpbrk_cg (s, accept, strlen (accept)))) \ + : __strpbrk_g (s, accept))) + #ifdef __PIC__ __STRING_INLINE char * -strpbrk (__const char *__s, __const char *__accept) +__strpbrk_cg (__const char *__s, __const char __accept[], size_t __accept_len) { register char *__res; + int __mem; __asm__ __volatile__ - ("pushl %%ebx\n\t" + ("movl %%ebx,%1\n\t" + "movl %%ecx,%%ebx\n\t" + "cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %%edx,%%edi\n\t" + "movl %%ebx,%%ecx\n\t" + "repne; scasb\n\t" + "jne 1b\n\t" + "decl %0\n\t" + "jmp 3f\n" + "2:\n\t" + "xorl %0,%0\n" + "3:\n\t" + "movl %1,%%ebx" + : "=S" (__res), "=m" (__mem) + : "c" (__accept_len), "0" (__s), "d" (__accept), "1" (__mem) + : "ax", "cx", "di", "cc"); + return __res; +} + +__STRING_INLINE char * +__strpbrk_g (__const char *__s, __const char *__accept) +{ + register char *__res; + int __mem; + __asm__ __volatile__ + ("movl %%ebx,%1\n\t" + "movl %%edx,%%edi\n\t" "cld\n\t" - "movl %4,%%edi\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%ebx\n" + "leal -1(%%ecx),%%ebx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %%edx,%%edi\n\t" "movl %%ebx,%%ecx\n\t" "repne; scasb\n\t" "jne 1b\n\t" @@ -745,29 +1253,54 @@ strpbrk (__const char *__s, __const char *__accept) "2:\n\t" "xorl %0,%0\n" "3:\n\t" - "popl %%ebx" - : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + "movl %1,%%ebx" + : "=S" (__res), "=m" (__mem) + : "a" (0), "c" (0xffffffff), "0" (__s), "d" (__accept), "1" (__mem) : "ax", "cx", "di", "cc"); return __res; } #else __STRING_INLINE char * -strpbrk (__const char *__s, __const char *__accept) +__strpbrk_cg (__const char *__s, __const char __accept[], size_t __accept_len) { register char *__res; __asm__ __volatile__ - ("cld\n\t" - "movl %4,%%edi\n\t" + ("movl %%ebx,%%edi\n\t" + "cld\n" + "1:\n\t" + "lodsb\n\t" + "testb %%al,%%al\n\t" + "je 2f\n\t" + "movl %%ebx,%%edi\n\t" + "movl %%edx,%%ecx\n\t" + "repne; scasb\n\t" + "jne 1b\n\t" + "decl %0\n\t" + "jmp 3f\n" + "2:\n\t" + "xorl %0,%0\n" + "3:" + : "=S" (__res) + : "d" (__accept_len), "0" (__s), "b" (__accept) + : "ax", "cx", "dx", "di", "cc"); + return __res; +} + +__STRING_INLINE char * +__strpbrk_g (__const char *__s, __const char *__accept) +{ + register char *__res; + __asm__ __volatile__ + ("movl %%ebx,%%edi\n\t" + "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" - "decl %%ecx\n\t" - "movl %%ecx,%%edx\n" + "leal -1(%%ecx),%%edx\n" "1:\n\t" "lodsb\n\t" "testb %%al,%%al\n\t" "je 2f\n\t" - "movl %4,%%edi\n\t" + "movl %%ebx,%%edi\n\t" "movl %%edx,%%ecx\n\t" "repne; scasb\n\t" "jne 1b\n\t" @@ -777,7 +1310,7 @@ strpbrk (__const char *__s, __const char *__accept) "xorl %0,%0\n" "3:" : "=S" (__res) - : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept) + : "a" (0), "c" (0xffffffff), "0" (__s), "b" (__accept) : "ax", "cx", "dx", "di", "cc"); return __res; } @@ -785,63 +1318,138 @@ strpbrk (__const char *__s, __const char *__accept) /* Find the first occurrence of NEEDLE in HAYSTACK. */ +#define _HAVE_STRING_ARCH_strstr 1 #ifdef __PIC__ +/* XXX GCC has problems to spill the registers. */ +# define strstr(haystack, needle) \ + (__extension__ (__builtin_constant_p (needle) && sizeof ((needle)[0]) == 1 \ + ? ((needle)[0] == '\0' \ + ? haystack \ + : ((needle)[1] == '\0' \ + ? strchr (haystack, (needle)[0]) \ + : strstr (haystack, needle))) \ + : strstr (haystack, needle))) + +# if 0 +/* Please note that this function need not handle NEEDLEs with a + length shorter than two. */ __STRING_INLINE char * -strstr (__const char *__haystack, __const char *__needle) +__strstr_cg (__const char *__haystack, __const char __needle[], + size_t __needle_len) { register char *__res; + int __mem; __asm__ __volatile__ - ("pushl %%ebx\n\t" - "cld\n\t" \ - "movl %4,%%edi\n\t" + ("movl %%ebx,%1\n\t" + "movl %%ecx,%%ebx\n" + "cld\n" \ + "1:\n\t" + "movl %%edx,%%edi\n\t" + "movl %%esi,%%eax\n\t" + "movl %%ebx,%%ecx\n\t" + "repe; cmpsb\n\t" + "je 2f\n\t" + "cmpb $0,-1(%%esi)\n\t" + "leal 1(%%eax),%%esi\n\t" + "jne 1b\n\t" + "xorl %%eax,%%eax\n" + "2:\n\t" + "movl %1,%%ebx" + : "=a" (__res), "=m" (__mem) + : "c" (__needle_len), "S" (__haystack), "d" (__needle), "1" (__mem) + : "cx", "di", "si", "cc"); + return __res; +} + +__STRING_INLINE char * +__strstr_g (__const char *__haystack, __const char *__needle) +{ + register char *__res; + int __mem; + __asm__ __volatile__ + ("movl %2,%%edi\n\t" + "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" + "movl %%ebx,%1\n\t" "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */ "movl %%ecx,%%ebx\n" "1:\n\t" - "movl %4,%%edi\n\t" + "movl %%edx,%%edi\n\t" "movl %%esi,%%eax\n\t" "movl %%ebx,%%ecx\n\t" "repe; cmpsb\n\t" "je 2f\n\t" /* also works for empty string, see above */ - "xchgl %%eax,%%esi\n\t" - "incl %%esi\n\t" - "cmpb $0,-1(%%eax)\n\t" + "cmpb $0,-1(%%esi)\n\t" + "leal 1(%%eax),%%esi\n\t" "jne 1b\n\t" - "xorl %%eax,%%eax\n\t" + "xorl %%eax,%%eax\n" "2:\n\t" - "popl %%ebx" - : "=a" (__res) - : "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle) + "movl %1,%%ebx" + : "=a" (__res), "=&m" (__mem) + : "0" (0), "c" (0xffffffff), "S" (__haystack), "d" (__needle), "1" (__mem) : "cx", "di", "si", "cc"); return __res; } +# endif #else +# define strstr(haystack, needle) \ + (__extension__ (__builtin_constant_p (needle) && sizeof ((needle)[0]) == 1 \ + ? ((needle)[0] == '\0' \ + ? haystack \ + : ((needle)[1] == '\0' \ + ? strchr (haystack, (needle)[0]) \ + : __strstr_cg (haystack, needle, strlen (needle)))) \ + : __strstr_g (haystack, needle))) + __STRING_INLINE char * -strstr (__const char *__haystack, __const char *__needle) +__strstr_cg (__const char *__haystack, __const char __needle[], + size_t __needle_len) { register char *__res; __asm__ __volatile__ - ("cld\n\t" \ - "movl %4,%%edi\n\t" + ("cld\n" \ + "1:\n\t" + "movl %%ebx,%%edi\n\t" + "movl %%esi,%%eax\n\t" + "movl %%edx,%%ecx\n\t" + "repe; cmpsb\n\t" + "je 2f\n\t" + "cmpb $0,-1(%%esi)\n\t" + "leal 1(%%eax),%%esi\n\t" + "jne 1b\n\t" + "xorl %%eax,%%eax\n" + "2:" + : "=a" (__res) + : "d" (__needle_len), "S" (__haystack), "b" (__needle) + : "cx", "dx", "di", "si", "cc"); + return __res; +} + +__STRING_INLINE char * +__strstr_g (__const char *__haystack, __const char *__needle) +{ + register char *__res; + __asm__ __volatile__ + ("movl %1,%%edi\n\t" + "cld\n\t" "repne; scasb\n\t" "notl %%ecx\n\t" "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */ "movl %%ecx,%%edx\n" "1:\n\t" - "movl %4,%%edi\n\t" + "movl %%ebx,%%edi\n\t" "movl %%esi,%%eax\n\t" "movl %%edx,%%ecx\n\t" "repe; cmpsb\n\t" "je 2f\n\t" /* also works for empty string, see above */ - "xchgl %%eax,%%esi\n\t" - "incl %%esi\n\t" - "cmpb $0,-1(%%eax)\n\t" + "cmpb $0,-1(%%esi)\n\t" + "leal 1(%%eax),%%esi\n\t" "jne 1b\n\t" - "xorl %%eax,%%eax\n\t" + "xorl %%eax,%%eax\n" "2:" : "=a" (__res) - : "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle) + : "0" (0), "c" (0xffffffff), "S" (__haystack), "b" (__needle) : "cx", "dx", "di", "si", "cc"); return __res; } diff --git a/sysdeps/i386/machine-gmon.h b/sysdeps/i386/machine-gmon.h index 496a57eb84..e1155989d4 100644 --- a/sysdeps/i386/machine-gmon.h +++ b/sysdeps/i386/machine-gmon.h @@ -1,4 +1,4 @@ -/* i386-specific implemetation of profiling support. +/* i386-specific implementation of profiling support. Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1997. @@ -36,6 +36,6 @@ void mcount_internal (u_long frompc, u_long selfpc); void mcount_internal (u_long frompc, u_long selfpc) -/* Define MCOUNT as empty since we have a the implementation in another +/* Define MCOUNT as empty since we have the implementation in another file. */ #define MCOUNT diff --git a/sysdeps/i386/memset.c b/sysdeps/i386/memset.c index 454c7385af..0cb6578df6 100644 --- a/sysdeps/i386/memset.c +++ b/sysdeps/i386/memset.c @@ -23,6 +23,8 @@ #ifdef __GNUC__ +#undef memset + void * memset (void *dstpp, int c, size_t len) { -- cgit v1.2.3