Update.

	* elf/rtld.c: Declare _environ as hidden.
	* sysdeps/generic/dl-environ.c: Likewise.
	* sysdeps/generic/dl-sysdep.c: Likewise.

	* sysdeps/generic/ldsodefs.h: Declare _dl_debug_state_internal and
	_dl_mcount_internal as hidden.

	* elf/Makefile (rtld-routines): Add dl-sbrk and dl-brk.
	* sysdeps/generic/dl-brk.c: New file.
	* sysdeps/generic/dl-sbrk.c: New file.
	* sysdeps/unix/sysv/linux/i386/dl-brk.c: New file.
	* sysdeps/unix/sysv/linux/i386/dl-sbrk.c: New file.

10 files changed, 37 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 2941007da3..5f54987dc9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,18 @@
 2002-03-14  Ulrich Drepper  <drepper@redhat.com>
 
+	* elf/rtld.c: Declare _environ as hidden.
+	* sysdeps/generic/dl-environ.c: Likewise.
+	* sysdeps/generic/dl-sysdep.c: Likewise.
+
+	* sysdeps/generic/ldsodefs.h: Declare _dl_debug_state_internal and
+	_dl_mcount_internal as hidden.
+
+	* elf/Makefile (rtld-routines): Add dl-sbrk and dl-brk.
+	* sysdeps/generic/dl-brk.c: New file.
+	* sysdeps/generic/dl-sbrk.c: New file.
+	* sysdeps/unix/sysv/linux/i386/dl-brk.c: New file.
+	* sysdeps/unix/sysv/linux/i386/dl-sbrk.c: New file.
+
 	* elf/dl-minimal.c (malloc): Declare _end as hidden.
 	(__errno_location): New function.  Declare errno as hidden.
 	* elf/rtld.c (_dl_argc): Define as hidden.
diff --git a/elf/Makefile b/elf/Makefile
index dd4c787dd1..43e622273c 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -38,7 +38,7 @@ elide-routines.os = $(all-dl-routines) dl-support enbl-secure \
 # ld.so uses those routines, plus some special stuff for being the program
 # interpreter and operating independent of libc.
 rtld-routines	:= rtld $(dl-routines) dl-sysdep dl-environ dl-minimal \
-		   dl-xstat64 dl-fxstat64
+		   dl-xstat64 dl-fxstat64 dl-sbrk dl-brk
 all-rtld-routines = $(rtld-routines) $(sysdep-rtld-routines)
 
 distribute	:= $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
diff --git a/elf/rtld.c b/elf/rtld.c
index 57b9e5ff03..575e6f7ddc 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -1579,7 +1579,7 @@ a filename can be specified using the LD_DEBUG_OUTPUT environment variable.\n");
 /* Process all environments variables the dynamic linker must recognize.
    Since all of them start with `LD_' we are a bit smarter while finding
    all the entries.  */
-extern char **_environ;
+extern char **_environ attribute_hidden;
 
 
 static void
diff --git a/sysdeps/generic/dl-brk.c b/sysdeps/generic/dl-brk.c
new file mode 100644
index 0000000000..4a0cf2da11
--- /dev/null
+++ b/sysdeps/generic/dl-brk.c
@@ -0,0 +1,2 @@
+/* Just use the normal code.  */
+#include <brk.c>
diff --git a/sysdeps/generic/dl-environ.c b/sysdeps/generic/dl-environ.c
index 53fa869aeb..132dad9c3e 100644
--- a/sysdeps/generic/dl-environ.c
+++ b/sysdeps/generic/dl-environ.c
@@ -50,6 +50,10 @@ _dl_next_ld_env_entry (char ***position)
   return result;
 }
 
+
+/* In ld.so __environ is not exported.  */
+extern char **__environ attribute_hidden;
+
 int
 unsetenv (const char *name)
 {
diff --git a/sysdeps/generic/dl-sbrk.c b/sysdeps/generic/dl-sbrk.c
new file mode 100644
index 0000000000..3874975890
--- /dev/null
+++ b/sysdeps/generic/dl-sbrk.c
@@ -0,0 +1,2 @@
+/* Just use the normal code.  */
+#include <sbrk.c>
diff --git a/sysdeps/generic/dl-sysdep.c b/sysdeps/generic/dl-sysdep.c
index 36b1150ff7..0f5f0fcdab 100644
--- a/sysdeps/generic/dl-sysdep.c
+++ b/sysdeps/generic/dl-sysdep.c
@@ -38,7 +38,7 @@
 #include <dl-osinfo.h>
 #include <hp-timing.h>
 
-extern char **_environ;
+extern char **_environ attribute_hidden;
 extern void _end attribute_hidden;
 
 /* Protect SUID program against misuse of file descriptors.  */
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index d2dd3e60ec..a68ae5e06e 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -634,7 +634,7 @@ extern void _dl_fini (void) internal_function;
    says what change is taking place.  This function's address is
    the value of the `r_brk' member.  */
 extern void _dl_debug_state (void);
-extern void _dl_debug_state_internal (void);
+extern void _dl_debug_state_internal (void) attribute_hidden;
 
 /* Initialize `struct r_debug' if it has not already been done.  The
    argument is the run-time load address of the dynamic linker, to be put
@@ -655,7 +655,8 @@ extern void _dl_start_profile_internal (struct link_map *map,
 
 /* The actual functions used to keep book on the calls.  */
 extern void _dl_mcount (ElfW(Addr) frompc, ElfW(Addr) selfpc);
-extern void _dl_mcount_internal (ElfW(Addr) frompc, ElfW(Addr) selfpc);
+extern void _dl_mcount_internal (ElfW(Addr) frompc, ElfW(Addr) selfpc)
+     attribute_hidden;
 
 /* This function is simply a wrapper around the _dl_mcount function
    which does not require a FROMPC parameter since this is the
diff --git a/sysdeps/unix/sysv/linux/i386/dl-brk.c b/sysdeps/unix/sysv/linux/i386/dl-brk.c
new file mode 100644
index 0000000000..c37cdfec33
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/dl-brk.c
@@ -0,0 +1,5 @@
+/* We can use the normal code but we also know the __curbrk is not exported
+   from ld.so.  */
+extern void *__curbrk attribute_hidden;
+
+#include <brk.c>
diff --git a/sysdeps/unix/sysv/linux/i386/dl-sbrk.c b/sysdeps/unix/sysv/linux/i386/dl-sbrk.c
new file mode 100644
index 0000000000..4713a92694
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/dl-sbrk.c
@@ -0,0 +1,5 @@
+/* We can use the normal code but we also know the __curbrk is not exported
+   from ld.so.  */
+extern void *__curbrk attribute_hidden;
+
+#include <sbrk.c>