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diff --git a/libexec/rtld-elf/arm/reloc.c b/libexec/rtld-elf/arm/reloc.c
--- a/libexec/rtld-elf/arm/reloc.c
+++ b/libexec/rtld-elf/arm/reloc.c
@@ -16,7 +16,7 @@
#include "debug.h"
#include "rtld.h"
-#include "paths.h"
+#include "rtld_paths.h"
#ifdef __ARM_FP
/*
diff --git a/libexec/rtld-elf/libmap.c b/libexec/rtld-elf/libmap.c
--- a/libexec/rtld-elf/libmap.c
+++ b/libexec/rtld-elf/libmap.c
@@ -16,7 +16,7 @@
#include "debug.h"
#include "rtld.h"
#include "libmap.h"
-#include "paths.h"
+#include "rtld_paths.h"
#include "rtld_libc.h"
TAILQ_HEAD(lm_list, lm);
diff --git a/libexec/rtld-elf/rtld.1 b/libexec/rtld-elf/rtld.1
--- a/libexec/rtld-elf/rtld.1
+++ b/libexec/rtld-elf/rtld.1
@@ -330,6 +330,7 @@
.Bd -ragged -offset indent
.Pa /libexec/ld-elf.so.1
.Op Fl b Ar exe
+.Op Fl d
.Op Fl f Ar fd
.Op Fl p
.Op Fl u
@@ -352,6 +353,8 @@
is only used to provide the
.Va argv[0]
value to the program.
+.It Fl d
+Turn off the emulation of the binary execute permission.
.It Fl f Ar fd
File descriptor
.Ar fd
@@ -403,6 +406,9 @@
and is naturally prone to race conditions.
Environments which rely on such restrictions are weak
and breakable on their own.
+It can be turned off with the
+.Fl d
+option.
.Sh VERSIONING
Newer
.Nm
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@@ -63,7 +63,7 @@
#include "debug.h"
#include "rtld.h"
#include "libmap.h"
-#include "paths.h"
+#include "rtld_paths.h"
#include "rtld_tls.h"
#include "rtld_printf.h"
#include "rtld_malloc.h"
@@ -140,7 +140,7 @@
static int open_binary_fd(const char *argv0, bool search_in_path,
const char **binpath_res);
static int parse_args(char* argv[], int argc, bool *use_pathp, int *fdp,
- const char **argv0);
+ const char **argv0, bool *dir_ignore);
static int parse_integer(const char *);
static void *path_enumerate(const char *, path_enum_proc, const char *, void *);
static void print_usage(const char *argv0);
@@ -503,7 +503,7 @@
#ifdef __powerpc__
int old_auxv_format = 1;
#endif
- bool dir_enable, direct_exec, explicit_fd, search_in_path;
+ bool dir_enable, dir_ignore, direct_exec, explicit_fd, search_in_path;
/*
* On entry, the dynamic linker itself has not been relocated yet.
@@ -589,7 +589,8 @@
dbg("opening main program in direct exec mode");
if (argc >= 2) {
- rtld_argc = parse_args(argv, argc, &search_in_path, &fd, &argv0);
+ rtld_argc = parse_args(argv, argc, &search_in_path, &fd,
+ &argv0, &dir_ignore);
explicit_fd = (fd != -1);
binpath = NULL;
if (!explicit_fd)
@@ -621,7 +622,7 @@
} else if ((st.st_mode & S_IXOTH) != 0) {
dir_enable = true;
}
- if (!dir_enable) {
+ if (!dir_enable && !dir_ignore) {
_rtld_error("No execute permission for binary %s",
argv0);
rtld_die();
@@ -5842,7 +5843,7 @@
*/
static int
parse_args(char* argv[], int argc, bool *use_pathp, int *fdp,
- const char **argv0)
+ const char **argv0, bool *dir_ignore)
{
const char *arg;
char machine[64];
@@ -5854,6 +5855,7 @@
dbg("Parsing command-line arguments");
*use_pathp = false;
*fdp = -1;
+ *dir_ignore = false;
seen_b = seen_f = false;
for (i = 1; i < argc; i++ ) {
@@ -5890,6 +5892,9 @@
*argv0 = argv[i];
seen_b = true;
break;
+ } else if (opt == 'd') {
+ *dir_ignore = true;
+ break;
} else if (opt == 'f') {
if (seen_b) {
_rtld_error("Both -b and -f specified");
@@ -5988,11 +5993,12 @@
{
rtld_printf(
- "Usage: %s [-h] [-b <exe>] [-f <FD>] [-p] [--] <binary> [<args>]\n"
+ "Usage: %s [-h] [-b <exe>] [-d] [-f <FD>] [-p] [--] <binary> [<args>]\n"
"\n"
"Options:\n"
" -h Display this help message\n"
" -b <exe> Execute <exe> instead of <binary>, arg0 is <binary>\n"
+ " -d Ignore lack of exec permissions for the binary\n"
" -f <FD> Execute <FD> instead of searching for <binary>\n"
" -p Search in PATH for named binary\n"
" -u Ignore LD_ environment variables\n"
diff --git a/libexec/rtld-elf/rtld_malloc.c b/libexec/rtld-elf/rtld_malloc.c
--- a/libexec/rtld-elf/rtld_malloc.c
+++ b/libexec/rtld-elf/rtld_malloc.c
@@ -55,7 +55,7 @@
#include <unistd.h>
#include "rtld.h"
#include "rtld_printf.h"
-#include "paths.h"
+#include "rtld_paths.h"
/*
* Pre-allocate mmap'ed pages
diff --git a/libexec/rtld-elf/paths.h b/libexec/rtld-elf/rtld_paths.h
rename from libexec/rtld-elf/paths.h
rename to libexec/rtld-elf/rtld_paths.h
--- a/libexec/rtld-elf/paths.h
+++ b/libexec/rtld-elf/rtld_paths.h
@@ -26,15 +26,19 @@
* $FreeBSD$
*/
-#ifndef PATHS_H
-#define PATHS_H
+#ifndef _RTLD_PATHS_H
+#define _RTLD_PATHS_H
#undef _PATH_ELF_HINTS
+#ifndef _COMPAT32_BASENAME_RTLD
+#define _COMPAT32_BASENAME_RTLD "ld-elf32.so.1"
+#endif
+
#ifdef COMPAT_32BIT
#define _PATH_ELF_HINTS "/var/run/ld-elf32.so.hints"
#define _PATH_LIBMAP_CONF "/etc/libmap32.conf"
-#define _BASENAME_RTLD "ld-elf32.so.1"
+#define _BASENAME_RTLD _COMPAT32_BASENAME_RTLD
#define STANDARD_LIBRARY_PATH "/lib32:/usr/lib32"
#define LD_ "LD_32_"
#endif
@@ -55,6 +59,10 @@
#define _PATH_RTLD "/libexec/" _BASENAME_RTLD
#endif
+#ifndef _COMPAT32_PATH_RTLD
+#define _COMPAT32_PATH_RTLD "/libexec/" _COMPAT32_BASENAME_RTLD
+#endif
+
#ifndef STANDARD_LIBRARY_PATH
#define STANDARD_LIBRARY_PATH "/lib/casper:/lib:/usr/lib"
#endif
@@ -69,10 +77,12 @@
#define SOFT_STANDARD_LIBRARY_PATH "/usr/libsoft"
#define LD_SOFT_ "LD_SOFT_"
+#ifdef IN_RTLD
extern const char *ld_elf_hints_default;
extern const char *ld_path_libmap_conf;
extern const char *ld_path_rtld;
extern const char *ld_standard_library_path;
extern const char *ld_env_prefix;
+#endif
-#endif /* PATHS_H */
+#endif /* _RTLD_PATHS_H */
diff --git a/usr.bin/ldd/Makefile b/usr.bin/ldd/Makefile
--- a/usr.bin/ldd/Makefile
+++ b/usr.bin/ldd/Makefile
@@ -3,6 +3,7 @@
PROG?= ldd
SRCS= ldd.c
+CFLAGS+= -I${SRCTOP}/libexec/rtld-elf
LIBADD= elf
.include <bsd.prog.mk>
diff --git a/usr.bin/ldd/ldd.c b/usr.bin/ldd/ldd.c
--- a/usr.bin/ldd/ldd.c
+++ b/usr.bin/ldd/ldd.c
@@ -46,6 +46,7 @@
#include <fcntl.h>
#include <gelf.h>
#include <libelf.h>
+#include <rtld_paths.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
@@ -134,7 +135,8 @@
main(int argc, char *argv[])
{
char *fmt1, *fmt2;
- int rval, c, aflag;
+ const char *rtld;
+ int aflag, c, fd, rval, status, is_shlib, rv, type;
aflag = 0;
fmt1 = fmt2 = NULL;
@@ -167,8 +169,6 @@
rval = 0;
for (; argc > 0; argc--, argv++) {
- int fd, status, is_shlib, rv, type;
-
if ((fd = open(*argv, O_RDONLY, 0)) < 0) {
warn("%s", *argv);
rval |= 1;
@@ -236,15 +236,23 @@
if (is_shlib == 0) {
execl(*argv, *argv, (char *)NULL);
warn("%s", *argv);
- } else {
+ } else if (fmt1 == NULL && fmt2 == NULL) {
dlopen(*argv, RTLD_TRACE);
warnx("%s: %s", *argv, dlerror());
+ } else {
+ rtld = _PATH_RTLD;
+#if __ELF_WORD_SIZE > 32 && defined(ELF32_SUPPORTED)
+ if (type == TYPE_ELF32)
+ rtld = _COMPAT32_PATH_RTLD;
+#endif
+ execl(rtld, rtld, "-d", "--",
+ *argv, (char *)NULL);
}
_exit(1);
}
}
- return rval;
+ return (rval);
}
static void

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