From ce6e047fbb353e1d2faf15ab104a19db609b622b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 6 Jul 2004 04:26:42 +0000 Subject: Update. 2004-07-05 Ulrich Drepper * elf/dl-init.c: Don't define and use _dl_starting_up if HAVE_INLINED_SYSCALLS is defined and the variable is not used. * elf/dl-support.c: Likewise. * elf/rtld.c: Likewise. * elf/dl-misc.c (_dl_debug_vdprintf): Use writev syscall directly if HAVE_INLINED_SYSCALLS is defined. * sysdeps/powerpc/powerpc64/dl-machine.h: Don't rest _dl_starting_up here. * sysdeps/powerpc/powerpc32/dl-start.S: Likewise. * sysdeps/unix/sysv/linux/configure.in: Define HAVE_INLINED_SYSCALLS. * config.h.in: Add entry for HAVE_INLINED_SYSCALLS. * sysdeps/posix/profil.c: If compiled for ld.so, omit code which is needed to stop profiling. * elf/dl-open.c (dl_open_worker): If a newly opened object is to be profile make sure it cannot be unloaded. * sysdeps/unix/sysv/linux/dl-origin.c: Inline readlink syscall. * sysdeps/unix/sysv/linux/fcntl.c: If compiled without cancellation support, make sure the helper function is inlined. * sysdeps/unix/sysv/linux/pread.c: Likewise. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Likewise. --- sysdeps/unix/common/configure | 103 ++++++++++++++-------- sysdeps/unix/configure | 38 ++++++-- sysdeps/unix/sysv/linux/configure | 8 +- sysdeps/unix/sysv/linux/configure.in | 3 + sysdeps/unix/sysv/linux/dl-origin.c | 7 +- sysdeps/unix/sysv/linux/fcntl.c | 5 +- sysdeps/unix/sysv/linux/i386/fcntl.c | 18 ++-- sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c | 3 + sysdeps/unix/sysv/linux/pread.c | 5 +- sysdeps/unix/sysv/linux/pwrite.c | 5 +- 10 files changed, 134 insertions(+), 61 deletions(-) (limited to 'sysdeps/unix') diff --git a/sysdeps/unix/common/configure b/sysdeps/unix/common/configure index 9112edee33..7bbc9cb2e5 100755 --- a/sysdeps/unix/common/configure +++ b/sysdeps/unix/common/configure @@ -10,15 +10,12 @@ if test "${ac_cv_check_symbol_sys_siglist+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" -#include "confdefs.h" - -#ifdef F77_DUMMY_MAIN -# ifdef __cplusplus - extern "C" -# endif - int F77_DUMMY_MAIN() { return 1; } -#endif +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + int main () { @@ -29,11 +26,21 @@ extern char *sys_siglist[]; puts(*sys_siglist); _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 - (eval $ac_link) 2>&5 + (eval $ac_link) 2>conftest.er1 ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -s conftest$ac_exeext' + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -42,10 +49,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 ac_cv_check_symbol_sys_siglist=yes else echo "$as_me: failed program was:" >&5 -cat conftest.$ac_ext >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + ac_cv_check_symbol_sys_siglist=no fi -rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext fi if test "$ac_cv_check_symbol_sys_siglist" = yes; then @@ -63,15 +72,12 @@ if test "${ac_cv_check_symbol__sys_siglist+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" -#include "confdefs.h" - -#ifdef F77_DUMMY_MAIN -# ifdef __cplusplus - extern "C" -# endif - int F77_DUMMY_MAIN() { return 1; } -#endif +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + int main () { @@ -82,11 +88,21 @@ extern char *_sys_siglist[]; puts(*_sys_siglist); _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 - (eval $ac_link) 2>&5 + (eval $ac_link) 2>conftest.er1 ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -s conftest$ac_exeext' + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -95,10 +111,12 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 ac_cv_check_symbol__sys_siglist=yes else echo "$as_me: failed program was:" >&5 -cat conftest.$ac_ext >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + ac_cv_check_symbol__sys_siglist=no fi -rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext fi if test "$ac_cv_check_symbol__sys_siglist" = yes; then @@ -120,15 +138,12 @@ if test "${libc_cv_ctype_glue+set}" = set; then else for ctype in _ctype_ __ctype_ __ctype _ctype__ _ctype _locp; do cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" -#include "confdefs.h" +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ #include -#ifdef F77_DUMMY_MAIN -# ifdef __cplusplus - extern "C" -# endif - int F77_DUMMY_MAIN() { return 1; } -#endif int main () { @@ -139,11 +154,21 @@ $ctype[13]; _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 - (eval $ac_link) 2>&5 + (eval $ac_link) 2>conftest.er1 ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -s conftest$ac_exeext' + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -152,9 +177,11 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 libc_cv_ctype_glue="$ctype"; break else echo "$as_me: failed program was:" >&5 -cat conftest.$ac_ext >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + fi -rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext done fi diff --git a/sysdeps/unix/configure b/sysdeps/unix/configure index 75dc5896a0..b910353cd9 100755 --- a/sysdeps/unix/configure +++ b/sysdeps/unix/configure @@ -14,15 +14,28 @@ if eval "test \"\${$as_ac_var+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ +/* Define $ac_func to an innocuous variant, in case declares $ac_func. + For example, HP-UX 11i declares gettimeofday. */ +#define $ac_func innocuous_$ac_func + /* System header to define __stub macros and hopefully few prototypes, - which can conflict with char $ac_func (); below. */ -#include + which can conflict with char $ac_func (); below. + Prefer to if __STDC__ is defined, since + exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include +#else +# include +#endif + +#undef $ac_func + /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" @@ -46,18 +59,28 @@ char (*f) () = $ac_func; int main () { - +return f != $ac_func; ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 - (eval $ac_link) 2>&5 + (eval $ac_link) 2>conftest.er1 ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && - { ac_try='test -s conftest$ac_exeext' + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? @@ -70,7 +93,8 @@ sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi -rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6 diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure index 89484200ce..d059143396 100644 --- a/sysdeps/unix/sysv/linux/configure +++ b/sysdeps/unix/sysv/linux/configure @@ -43,7 +43,6 @@ if test "${libc_cv_linux2010+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext @@ -172,7 +171,6 @@ echo $ECHO_N "checking for kernel header at least $minimum_kernel... $ECHO_C" >& decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`; abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`; cat >conftest.$ac_ext <<_ACEOF -#line $LINENO "configure" /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext @@ -379,3 +377,9 @@ ${ac_prefix}/include directory out of the way." >&2;} echo "${ECHO_T}ok" >&6 fi fi + +# We have inlined syscalls. +cat >>confdefs.h <<\_ACEOF +#define HAVE_INLINED_SYSCALLS 1 +_ACEOF + diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in index f0a7fb1231..e3fccb4c9b 100644 --- a/sysdeps/unix/sysv/linux/configure.in +++ b/sysdeps/unix/sysv/linux/configure.in @@ -305,3 +305,6 @@ ${ac_prefix}/include directory out of the way.]) AC_MSG_RESULT(ok) fi fi + +# We have inlined syscalls. +AC_DEFINE(HAVE_INLINED_SYSCALLS) diff --git a/sysdeps/unix/sysv/linux/dl-origin.c b/sysdeps/unix/sysv/linux/dl-origin.c index f7512340a1..a7fa53ea1d 100644 --- a/sysdeps/unix/sysv/linux/dl-origin.c +++ b/sysdeps/unix/sysv/linux/dl-origin.c @@ -24,6 +24,7 @@ #include #include #include +#include #include @@ -37,9 +38,11 @@ _dl_get_origin (void) char linkval[PATH_MAX]; char *result; int len; + INTERNAL_SYSCALL_DECL (err); - if ((len = __readlink ("/proc/self/exe", linkval, sizeof (linkval))) > 0 - && linkval[0] != '[') + len = INTERNAL_SYSCALL (readlink, err, 3, "/proc/self/exe", linkval, + sizeof (linkval)); + if (! INTERNAL_SYSCALL_ERROR_P (len, err) && len > 0 && linkval[0] != '[') { /* We can use this value. */ assert (linkval[0] == '/'); diff --git a/sysdeps/unix/sysv/linux/fcntl.c b/sysdeps/unix/sysv/linux/fcntl.c index a6793bc526..ab8d9cfb9c 100644 --- a/sysdeps/unix/sysv/linux/fcntl.c +++ b/sysdeps/unix/sysv/linux/fcntl.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2002, 2003, 2004 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 @@ -26,6 +26,9 @@ int +#ifdef NO_CANCELLATION +static inline __attribute ((always_inline)) +#endif __fcntl_nocancel (int fd, int cmd, ...) { va_list ap; diff --git a/sysdeps/unix/sysv/linux/i386/fcntl.c b/sysdeps/unix/sysv/linux/i386/fcntl.c index f47d98e6bf..2b3db38e53 100644 --- a/sysdeps/unix/sysv/linux/i386/fcntl.c +++ b/sysdeps/unix/sysv/linux/i386/fcntl.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2002, 2003, 2004 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 @@ -32,6 +32,9 @@ int __have_no_fcntl64; int +#ifdef NO_CANCELLATION +static inline __attribute ((always_inline)) +#endif __fcntl_nocancel (int fd, int cmd, ...) { va_list ap; @@ -65,16 +68,15 @@ __fcntl_nocancel (int fd, int cmd, ...) /* Check if we can represent the values with the smaller type. */ if ((off64_t) fl.l_start != fl64->l_start) { + eoverflow: __set_errno (EOVERFLOW); return -1; } fl.l_len = (off_t) fl64->l_len; /* Check if we can represent the values with the smaller type. */ if ((off64_t) fl.l_len != fl64->l_len) - { - __set_errno (EOVERFLOW); - return -1; - } + goto eoverflow: + fl.l_type = fl64->l_type; fl.l_whence = fl64->l_whence; fl.l_pid = fl64->l_pid; @@ -101,10 +103,8 @@ __fcntl_nocancel (int fd, int cmd, ...) fl.l_start = (off_t) fl64->l_start; /* Check if we can represent the values with the smaller type. */ if ((off64_t) fl.l_start != fl64->l_start) - { - __set_errno (EOVERFLOW); - return -1; - } + goto eoverflow: + fl.l_len = (off_t)fl64->l_len; /* Check if we can represent the values with the smaller type. */ if ((off64_t) fl.l_len != fl64->l_len) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c index f629a35fb4..4b60a163ce 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c @@ -26,6 +26,9 @@ int +#ifdef NO_CANCELLATION +static inline __attribute ((always_inline)) +#endif __fcntl_nocancel (int fd, int cmd, ...) { va_list ap; diff --git a/sysdeps/unix/sysv/linux/pread.c b/sysdeps/unix/sysv/linux/pread.c index 9e17f1f916..90057f3f40 100644 --- a/sysdeps/unix/sysv/linux/pread.c +++ b/sysdeps/unix/sysv/linux/pread.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,1999,2000,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997-2000,2002,2003,2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1997. @@ -44,6 +44,9 @@ static ssize_t __emulate_pread (int fd, void *buf, size_t count, static ssize_t +#ifdef NO_CANCELLATION +inline __attribute ((always_inline)) +#endif do_pread (int fd, void *buf, size_t count, off_t offset) { ssize_t result; diff --git a/sysdeps/unix/sysv/linux/pwrite.c b/sysdeps/unix/sysv/linux/pwrite.c index 35b6231708..f4eb2f5544 100644 --- a/sysdeps/unix/sysv/linux/pwrite.c +++ b/sysdeps/unix/sysv/linux/pwrite.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,1999,2000,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997-2000,2002,2003,2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1997. @@ -44,6 +44,9 @@ static ssize_t __emulate_pwrite (int fd, const void *buf, size_t count, static ssize_t +#ifdef NO_CANCELLATION +inline __attribute ((always_inline)) +#endif do_pwrite (int fd, const void *buf, size_t count, off_t offset) { ssize_t result; -- cgit 1.4.1