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authorUlrich Drepper <drepper@redhat.com>1998-03-06 17:21:43 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-06 17:21:43 +0000
commit7dea968e78d0903e5f6069f2bf72a9961f49465f (patch)
tree20dd8ba18cd1960f9c60d8ae73adea86de2a253e /elf/link.h
parent4b7814cf8a55c034f34e02c14207bb271b3aee50 (diff)
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Update.
1998-03-06 17:04 Ulrich Drepper <drepper@cygnus.com> * libc.map: Add _dl_debug_impcalls, _dl_debug_fd, _dl_sysdep_output, __libc_start_main. * csu/Makefile (routines): Add libc-start. * elf/dl-error.c: Remove declaration of _dl_argv. Include <unitsd.h>. * elf/dl-lookup.c: Likewise. * elf/dl-version.c: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * elf/link.h: Declare _dl_argv, _dl_debug_fd. Declare _dl_sysdep_output. Make _dl_sysdep_fatal, _dl_sysdep_error and _dl_sysdep_message macros which use _dl_sysdep_output. * elf/dl-fini.c: Write out which destructor is called while debugging. * elf/dl-init.c: Likewise for constructor. * elf/dl-load.c: Use _dl_debug_message instead of _dl_sysdep_message. * elf/dl-misc.c: Remove _dl_sysdep_fatal, _dl_sysdep_error and _dl_sysdep_message. Add _dl_sysdep_output. * elf/rtld.c: Recognize LD_DEBUG_OUTPUT. Set _dl_debug_fd if this file can be opened. For LD_DEBUG=libs also set _dl_debug_impcalls. * sysdeps/generic/dl-cache.c: Include unistd.h. * sysdeps/generic/libc-start.c: New file. * sysdeps/i386/elf/start.S: Don't call main directly, call * sysdeps/unix/sysv/linux/libc-start.c: New file. __libc_start_main instead. * elf/Makefile ($(objpfx)ld.so): Add $(load-map-file) as dependency.
Diffstat (limited to 'elf/link.h')
-rw-r--r--elf/link.h33
1 files changed, 29 insertions, 4 deletions
diff --git a/elf/link.h b/elf/link.h
index b8bce58..4fa6fbb 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -231,6 +231,9 @@ typedef void (*receiver_fct) (int, const char *, const char *);
user interface to run-time dynamic linking. */
+/* Parameters passed to te dynamic linker. */
+extern char **_dl_argv;
+
/* Cached value of `getpagesize ()'. */
extern size_t _dl_pagesize;
@@ -244,26 +247,48 @@ extern struct link_map *_dl_profile_map;
/* If nonzero the appropriate debug information if printed. */
extern int _dl_debug_libs;
+extern int _dl_debug_impcalls;
+
+/* File deccriptor to write debug messages to. */
+extern int _dl_debug_fd;
/* OS-dependent function to open the zero-fill device. */
extern int _dl_sysdep_open_zero_fill (void); /* dl-sysdep.c */
+/* OS-dependent function to write a message on the specified
+ descriptor FD. All arguments are `const char *'; args until a null
+ pointer are concatenated to form the message to print. */
+extern void _dl_sysdep_output (int fd, const char *string, ...);
+
+/* OS-dependent function to write a debug message on the specified
+ descriptor for this. All arguments are `const char *'; args until
+ a null pointer are concatenated to form the message to print. */
+#define _dl_debug_message(string, args...) \
+ _dl_sysdep_output (_dl_debug_fd, string, ##args)
+
/* OS-dependent function to write a message on the standard output.
All arguments are `const char *'; args until a null pointer
are concatenated to form the message to print. */
-extern void _dl_sysdep_message (const char *string, ...);
+#define _dl_sysdep_message(string, args...) \
+ _dl_sysdep_output (STDOUT_FILENO, string, ##args)
/* OS-dependent function to write a message on the standard error.
All arguments are `const char *'; args until a null pointer
are concatenated to form the message to print. */
-extern void _dl_sysdep_error (const char *string, ...);
+#define _dl_sysdep_error(string, args...) \
+ _dl_sysdep_output (STDERR_FILENO, string, ##args)
/* OS-dependent function to give a fatal error message and exit
when the dynamic linker fails before the program is fully linked.
All arguments are `const char *'; args until a null pointer
are concatenated to form the message to print. */
-extern void _dl_sysdep_fatal (const char *string, ...)
- __attribute__ ((__noreturn__));
+#define _dl_sysdep_fatal(string, args...) \
+ do \
+ { \
+ _dl_sysdep_output (STDERR_FILENO, string, ##args); \
+ _exit (127); \
+ } \
+ while (1)
/* Nonzero if the program should be "secure" (i.e. it's setuid or somesuch).
This tells the dynamic linker to ignore environment variables. */