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authorRoland McGrath <roland@gnu.org>1995-09-21 06:24:21 +0000
committerRoland McGrath <roland@gnu.org>1995-09-21 06:24:21 +0000
commit0324daa0055227fdb157b8491d4e5bbe9d9d579a (patch)
tree1cc1994ae9fa52ba09e28498b50911628f366add /sysdeps/i386/init-first.c
parent600927014b78e4247e36bbc554c188c7a3cca40e (diff)
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Thu Sep 21 00:03:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/stub/sys/sem_buf.h (union semun): New type. * sysdeps/mach/hurd/i386/init-first.c (init1) [PIC]: Call __libc_global_ctors. * sysdeps/i386/init-first.c: Rewritten. * sysdeps/unix/sysv/linux/i386/init-first.S: File removed. * sysdeps/unix/sysv/linux/i386/init-first.c: New file. * sysdeps/unix/sysv/linux/i386/fpu_control.h: Fix name in decl of ___fpu_control. * Makerules (build-shlib): New canned sequence, broken out of lib%.so rule. Link in $^ instead of just $<. (lib%.so: lib%_pic.a): Use it. (libc.so): New target; use $(build-shlib) for cmds, but also depend on soinit.so first and sofini.so last. * elf/soinit.c: New file. * elf/sofini.c: New file. * elf/Makefile (distribute): Add soinit.c and sofini.c. (extra-objs): Add soinit.so and sofini.so. * sysvipc/sys/shm.h (shmat): Fix return type to char *. * sysdeps/stub/sys/ipc_buf.h (key_t): Type removed. * misc/syslog.c (vsyslog): Rewritten using open_memstream to dynamically allocate buffers. * Makerules (install-lib-nosubdir): Make this, rather than install-no-libc.a, depend on the installed shared libraries.
Diffstat (limited to 'sysdeps/i386/init-first.c')
-rw-r--r--sysdeps/i386/init-first.c45
1 files changed, 32 insertions, 13 deletions
diff --git a/sysdeps/i386/init-first.c b/sysdeps/i386/init-first.c
index aa36732..792702e 100644
--- a/sysdeps/i386/init-first.c
+++ b/sysdeps/i386/init-first.c
@@ -20,26 +20,45 @@ Cambridge, MA 02139, USA. */
#include <unistd.h>
extern void __libc_init (int, char **, char **);
+extern void __libc_global_ctors (void);
+
+
+static void
+init (int *data)
+{
+ int argc = *data;
+ char **argv = (void *) (data + 1);
+ char **envp = &argv[argc + 1];
+
+ __environ = envp;
+ __libc_init (argc, argv, envp);
+}
#ifdef PIC
-static void soinit (int argc, char *arg0, ...)
- __attribute__ ((unused, section (".init")));
+/* This function is called to initialize the shared C library.
+ It is called just before the user _start code from i386/elf/start.S,
+ with the stack set up as that code gets it. */
+
+/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
+ pointer in the dynamic section based solely on that. It is convention
+ for this function to be in the `.init' section, but the symbol name is
+ the only thing that really matters!! */
+/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
void
-__libc_init_first (void)
+_init (int argc, ...)
{
+ init (&argc);
+
+ __libc_global_ctors ();
}
#endif
-#ifdef PIC
-static void soinit
-#else
-void __libc_init_first
-#endif
-(int argc, char *arg0, ...)
-{
- char **argv = &arg0, **envp = &argv[argc + 1];
- __environ = envp;
- __libc_init (argc, argv, envp);
+void
+__libc_init_first (int argc __attribute__ ((unused)), ...)
+{
+#ifndef PIC
+ init (&argc);
+#endif
}