From 5bbcba0db58cef39ec4b582cd665ccb019dc6763 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 24 Oct 2002 19:14:59 +0000 Subject: * elf/dl-misc.c: Include . (_dl_debug_vdprintf): Only take dl_load_lock if not _dl_starting_up. * sysdeps/generic/ldsodefs.h (_dl_starting_up): Declare it here. * sysdeps/unix/sysv/linux/init-first.c: Not here. * sysdeps/powerpc/elf/libc-start.c: Or here. * sysdeps/unix/sysv/aix/libc-start.c: Or here. * sysdeps/unix/sysv/aix/start-libc.c: Or here. * sysdeps/unix/sysv/aix/init-first.c: Or here. * sysdeps/generic/libc-start.c: Or here. * sysdeps/unix/sysv/linux/init-first.c (init): Protect _dl_starting_up access with [! SHARED]. * sysdeps/unix/sysv/aix/init-first.c (init): Likewise. --- sysdeps/generic/ldsodefs.h | 7 +++++++ sysdeps/generic/libc-start.c | 2 -- sysdeps/powerpc/elf/libc-start.c | 3 --- sysdeps/unix/sysv/aix/init-first.c | 5 ++--- sysdeps/unix/sysv/aix/libc-start.c | 2 -- sysdeps/unix/sysv/aix/start-libc.c | 2 -- sysdeps/unix/sysv/linux/init-first.c | 6 +++--- 7 files changed, 12 insertions(+), 15 deletions(-) (limited to 'sysdeps') diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index 36582a7463..a8f006122b 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -416,6 +416,13 @@ extern const char _dl_out_of_memory[]; extern const char _dl_out_of_memory_internal[] attribute_hidden; #endif +#ifndef SHARED +/* Flag set at startup and cleared when the last initializer has run. */ +extern int _dl_starting_up; +weak_extern (_dl_starting_up) +#elif defined IS_IN_rtld +extern int _dl_starting_up_internal attribute_hidden; +#endif /* OS-dependent function to open the zero-fill device. */ extern int _dl_sysdep_open_zero_fill (void); /* dl-sysdep.c */ diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c index 3c7f2fa639..806ed789cc 100644 --- a/sysdeps/generic/libc-start.c +++ b/sysdeps/generic/libc-start.c @@ -24,8 +24,6 @@ extern void __libc_init_first (int argc, char **argv, char **envp); -extern int _dl_starting_up; -weak_extern (_dl_starting_up) extern int __libc_multiple_libcs; extern void *__libc_stack_end; diff --git a/sysdeps/powerpc/elf/libc-start.c b/sysdeps/powerpc/elf/libc-start.c index 6751b9ea06..4878979f43 100644 --- a/sysdeps/powerpc/elf/libc-start.c +++ b/sysdeps/powerpc/elf/libc-start.c @@ -24,9 +24,6 @@ extern void __libc_init_first (int argc, char **argv, char **envp); -extern int _dl_starting_up; -weak_extern (_dl_starting_up) - extern int __cache_line_size; weak_extern (__cache_line_size) diff --git a/sysdeps/unix/sysv/aix/init-first.c b/sysdeps/unix/sysv/aix/init-first.c index 4c6768b8ad..8272a62824 100644 --- a/sysdeps/unix/sysv/aix/init-first.c +++ b/sysdeps/unix/sysv/aix/init-first.c @@ -37,9 +37,6 @@ extern void __libc_init (int, char **, char **); /* The function is called from assembly stubs the compiler can't see. */ static void init (int, char **, char **) __attribute__ ((unused)); -extern int _dl_starting_up; -weak_extern (_dl_starting_up) - /* Set nonzero if we have to be prepared for more then one libc being used in the process. Safe assumption if initializer never runs. */ int __libc_multiple_libcs attribute_hidden = 1; @@ -60,10 +57,12 @@ init (int argc, char **argv, char **envp) If the address would be taken inside the expression the optimizer would try to be too smart and throws it away. Grrr. */ +#ifndef SHARED /* XXX disable dl for now int *dummy_addr = &_dl_starting_up; __libc_multiple_libcs = dummy_addr && !_dl_starting_up; */ +#endif /* Save the command-line arguments. */ __libc_argc = argc; diff --git a/sysdeps/unix/sysv/aix/libc-start.c b/sysdeps/unix/sysv/aix/libc-start.c index 757b34975c..813e28d09b 100644 --- a/sysdeps/unix/sysv/aix/libc-start.c +++ b/sysdeps/unix/sysv/aix/libc-start.c @@ -31,8 +31,6 @@ typedef unsigned char uchar; extern void __libc_init_first (int argc, char **argv, char **envp); /* XXX disable for now -extern int _dl_starting_up; -weak_extern (_dl_starting_up) extern int __libc_multiple_libcs; */ /* XXX normally defined in generic/dl-sydep.c, hack it into existance diff --git a/sysdeps/unix/sysv/aix/start-libc.c b/sysdeps/unix/sysv/aix/start-libc.c index 303caa7078..0cbe79d0b1 100644 --- a/sysdeps/unix/sysv/aix/start-libc.c +++ b/sysdeps/unix/sysv/aix/start-libc.c @@ -31,8 +31,6 @@ typedef unsigned char uchar; extern void __libc_init_first (int argc, char **argv, char **envp); /* XXX disable for now -extern int _dl_starting_up; -weak_extern (_dl_starting_up) extern int __libc_multiple_libcs; */ /* XXX normally defined in generic/dl-sydep.c, hack it into existance diff --git a/sysdeps/unix/sysv/linux/init-first.c b/sysdeps/unix/sysv/linux/init-first.c index e644b29eda..a2905f9392 100644 --- a/sysdeps/unix/sysv/linux/init-first.c +++ b/sysdeps/unix/sysv/linux/init-first.c @@ -35,9 +35,6 @@ /* The function is called from assembly stubs the compiler can't see. */ static void init (int, char **, char **) __attribute__ ((unused)); -extern int _dl_starting_up; -weak_extern (_dl_starting_up) - /* Set nonzero if we have to be prepared for more then one libc being used in the process. Safe assumption if initializer never runs. */ int __libc_multiple_libcs attribute_hidden = 1; @@ -54,12 +51,15 @@ init (int argc, char **argv, char **envp) #ifdef USE_NONOPTION_FLAGS extern void __getopt_clean_environment (char **); #endif + +#ifndef SHARED /* The next variable is only here to work around a bug in gcc <= 2.7.2.2. If the address would be taken inside the expression the optimizer would try to be too smart and throws it away. Grrr. */ int *dummy_addr = &_dl_starting_up; __libc_multiple_libcs = dummy_addr && !_dl_starting_up; +#endif /* Make sure we don't initialize twice. */ if (!__libc_multiple_libcs) -- cgit 1.4.1