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authorUlrich Drepper <drepper@redhat.com>2000-08-15 08:06:15 +0000
committerUlrich Drepper <drepper@redhat.com>2000-08-15 08:06:15 +0000
commitfc7f617d300f075fe28567391b10b4c5d64be46f (patch)
treeb0a8765937d52ccdb09a796e4e0c322dae9b804b
parent07a3d63e524f13dd09e14adb0ac2623f6600401d (diff)
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Update.
* include/link.h: Include sysd-link.h. * sysdeps/generic/sysd-link.h: New file. * sysdeps/unix/sysv/linux/sysd-link.h: New file. * elf/Makefile (distribute): Add sysd-link.h. * elf/dl-load.c: Use definitions from sysd-link.h instead of stat types and functions directly. * elf/dl-misc.c: Likewise. * elf/dl-profile.c: Likewise. * elf/loadfail.c (main): Close all successfully loaded objects.
-rw-r--r--ChangeLog11
-rw-r--r--elf/Makefile3
-rw-r--r--elf/dl-load.c12
-rw-r--r--elf/dl-misc.c8
-rw-r--r--elf/dl-profile.c4
-rw-r--r--elf/loadfail.c23
-rw-r--r--include/link.h5
-rw-r--r--sysdeps/generic/sysd-link.h5
-rw-r--r--sysdeps/unix/sysv/linux/sysd-link.h5
9 files changed, 56 insertions, 20 deletions
diff --git a/ChangeLog b/ChangeLog
index e89c8bd..963b03b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
2000-08-15 Ulrich Drepper <drepper@redhat.com>
+ * include/link.h: Include sysd-link.h.
+ * sysdeps/generic/sysd-link.h: New file.
+ * sysdeps/unix/sysv/linux/sysd-link.h: New file.
+ * elf/Makefile (distribute): Add sysd-link.h.
+ * elf/dl-load.c: Use definitions from sysd-link.h instead of stat
+ types and functions directly.
+ * elf/dl-misc.c: Likewise.
+ * elf/dl-profile.c: Likewise.
+
+ * elf/loadfail.c (main): Close all successfully loaded objects.
+
* elf/multiload.c: Add mtrace call. Call dlclose for all handles and
free wd.
* elf/dl-deps.c (_dl_map_object_deps): Don't allocate needed list if
diff --git a/elf/Makefile b/elf/Makefile
index 3021596..420db73 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -47,7 +47,8 @@ distribute := $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
vismain.c vismod1.c vismod2.c vismod3.c \
constload2.c constload3.c filtmod1.c filtmod2.c \
nodlopenmod.c nodelete.c nodelmod1.c nodelmod2.c \
- nodelmod3.c nodelmod4.c nodlopen.c
+ nodelmod3.c nodelmod4.c nodlopen.c \
+ sysd-link.h
include ../Makeconfig
diff --git a/elf/dl-load.c b/elf/dl-load.c
index ebe4c80..e0c9a61 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -730,10 +730,10 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname,
int type;
char *readbuf;
ssize_t readlength;
- struct stat st;
+ struct elf_stat st;
/* Get file information. */
- if (__fxstat (_STAT_VER, fd, &st) < 0)
+ if (elf_fxstat (_STAT_VER, fd, &st) < 0)
LOSE (errno, N_("cannot stat shared object"));
/* Look again to see if the real name matched another already loaded. */
@@ -1260,11 +1260,11 @@ open_path (const char *name, size_t namelen, int preloaded,
{
/* We failed to open machine dependent library. Let's
test whether there is any directory at all. */
- struct stat st;
+ struct elf_stat st;
buf[buflen - namelen - 1] = '\0';
- if (__xstat (_STAT_VER, buf, &st) != 0
+ if (elf_xstat (_STAT_VER, buf, &st) != 0
|| ! S_ISDIR (st.st_mode))
/* The directory does not exist or it is no directory. */
this_dir->status[cnt] = nonexisting;
@@ -1281,9 +1281,9 @@ open_path (const char *name, size_t namelen, int preloaded,
/* This is an extra security effort to make sure nobody can
preload broken shared objects which are in the trusted
directories and so exploit the bugs. */
- struct stat st;
+ struct elf_stat st;
- if (__fxstat (_STAT_VER, fd, &st) != 0
+ if (elf_fxstat (_STAT_VER, fd, &st) != 0
|| (st.st_mode & S_ISUID) == 0)
{
/* The shared object cannot be tested for being SUID
diff --git a/elf/dl-misc.c b/elf/dl-misc.c
index 63f9266..5261007 100644
--- a/elf/dl-misc.c
+++ b/elf/dl-misc.c
@@ -1,5 +1,5 @@
/* Miscellaneous support functions for dynamic linker
- Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 1999, 2000 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
@@ -19,7 +19,7 @@
#include <assert.h>
#include <fcntl.h>
-#include <unistd.h>
+#include <link.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
@@ -45,11 +45,11 @@ void *
_dl_sysdep_read_whole_file (const char *file, size_t *sizep, int prot)
{
void *result;
- struct stat st;
+ struct elf_stat st;
int fd = __open (file, O_RDONLY);
if (fd < 0)
return NULL;
- if (__fxstat (_STAT_VER, fd, &st) < 0
+ if (elf_fxstat (_STAT_VER, fd, &st) < 0
/* No need to map the file if it is empty. */
|| st.st_size == 0)
result = NULL;
diff --git a/elf/dl-profile.c b/elf/dl-profile.c
index 5d69b71..9f5ee14 100644
--- a/elf/dl-profile.c
+++ b/elf/dl-profile.c
@@ -175,7 +175,7 @@ _dl_start_profile (struct link_map *map, const char *output_dir)
{
char *filename;
int fd;
- struct stat st;
+ struct elf_stat st;
const ElfW(Phdr) *ph;
ElfW(Addr) mapstart = ~((ElfW(Addr)) 0);
ElfW(Addr) mapend = 0;
@@ -267,7 +267,7 @@ _dl_start_profile (struct link_map *map, const char *output_dir)
return;
}
- if (fstat (fd, &st) < 0 || !S_ISREG (st.st_mode))
+ if (elf_fxstat (_STAT_VER, fd, &st) < 0 || !S_ISREG (st.st_mode))
{
/* Not stat'able or not a regular file => don't use it. */
char buf[400];
diff --git a/elf/loadfail.c b/elf/loadfail.c
index 60deb77..e423356 100644
--- a/elf/loadfail.c
+++ b/elf/loadfail.c
@@ -1,25 +1,36 @@
#include <dlfcn.h>
#include <error.h>
+#include <mcheck.h>
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{
+ void *su[5];
void *h;
+ int n;
- if (dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW) == NULL
- || dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW) == NULL
- || dlopen ("testobj2.so", RTLD_GLOBAL | RTLD_NOW) == NULL
- || dlopen ("testobj3.so", RTLD_GLOBAL | RTLD_NOW) == NULL
- || dlopen ("testobj4.so", RTLD_GLOBAL | RTLD_NOW) == NULL
- || dlopen ("testobj5.so", RTLD_GLOBAL | RTLD_NOW) == NULL)
+ mtrace ();
+
+ if ((su[0] = dlopen ("testobj1.so", RTLD_GLOBAL | RTLD_NOW)) == NULL
+ || (su[1] = dlopen ("testobj2.so", RTLD_GLOBAL | RTLD_NOW)) == NULL
+ || (su[2] = dlopen ("testobj3.so", RTLD_GLOBAL | RTLD_NOW)) == NULL
+ || (su[3] = dlopen ("testobj4.so", RTLD_GLOBAL | RTLD_NOW)) == NULL
+ || (su[4] = dlopen ("testobj5.so", RTLD_GLOBAL | RTLD_NOW)) == NULL)
error (EXIT_FAILURE, 0, "failed to load shared object: %s", dlerror ());
h = dlopen ("failobj.so", RTLD_GLOBAL | RTLD_NOW);
printf ("h = %p, %s\n", h, h == NULL ? "ok" : "fail");
+ for (n = 0; n < 5; ++n)
+ if (dlclose (su[n]) != 0)
+ {
+ printf ("failed to unload su[%d]: %s\n", n, dlerror ());
+ exit (EXIT_FAILURE);
+ }
+
return h != NULL;
}
diff --git a/include/link.h b/include/link.h
index 375d5d1..8e69f57 100644
--- a/include/link.h
+++ b/include/link.h
@@ -34,6 +34,9 @@
#include <bits/elfclass.h> /* Defines __ELF_NATIVE_CLASS. */
+/* Get some system specific definitions. */
+#include <sysd-link.h>
+
/* Rendezvous structure used by the run-time dynamic linker to communicate
details of shared object loading to the debugger. If the executable's
dynamic section has a DT_DEBUG element, the run-time linker sets that
@@ -202,7 +205,7 @@ struct link_map
/* This information is kept to check for sure whether a shared
object is the same as one already loaded. */
dev_t l_dev;
- ino_t l_ino;
+ elf_ino_t l_ino;
/* Collected information about own RUNPATH directories. */
struct r_search_path_elem **l_runpath_dirs;
diff --git a/sysdeps/generic/sysd-link.h b/sysdeps/generic/sysd-link.h
new file mode 100644
index 0000000..2faa1a4
--- /dev/null
+++ b/sysdeps/generic/sysd-link.h
@@ -0,0 +1,5 @@
+/* In general we don't have stat64 available. */
+#define elf_stat stat
+#define elf_fxstat __fxstat
+#define elf_xstat __xstat
+#define elf_ino_t ino_t
diff --git a/sysdeps/unix/sysv/linux/sysd-link.h b/sysdeps/unix/sysv/linux/sysd-link.h
new file mode 100644
index 0000000..c722d55
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sysd-link.h
@@ -0,0 +1,5 @@
+/* On Linux we have stat64 available. */
+#define elf_stat stat64
+#define elf_fxstat __fxstat64
+#define elf_xstat __xstat64
+#define elf_ino_t ino64_t