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personality fix - i386 interpreter fix 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@73 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-04-07 21:31:06 +00:00
parent f48c3dd51a
commit f801f97e04
1 changed files with 16 additions and 0 deletions
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16
linux-user/main.c
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@ -23,6 +23,9 @@
#include <string.h> #include <string.h>
#include <errno.h> #include <errno.h>
#include <unistd.h> #include <unistd.h>
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
#include <sys/personality.h>
#endif
#include "qemu.h" #include "qemu.h"
@ -34,6 +37,12 @@ FILE *logfile = NULL;
int loglevel; int loglevel;
const char *interp_prefix = CONFIG_QEMU_PREFIX "/qemu-i386"; const char *interp_prefix = CONFIG_QEMU_PREFIX "/qemu-i386";
#ifdef __i386__
/* Force usage of an ELF interpreter even if it is an ELF shared
object ! */
const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
#endif
/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
we allocate a bigger stack. Need a better solution, for example we allocate a bigger stack. Need a better solution, for example
by remapping the process stack directly at the right place */ by remapping the process stack directly at the right place */
@ -370,6 +379,13 @@ int main(int argc, char **argv)
if (argc <= 1) if (argc <= 1)
usage(); usage();
/* Set personality to X86_LINUX. May fail on unpatched kernels:
if so, they need to have munged paths themselves (eg. chroot,
hacked ld.so, whatever). */
if (personality(0x11) >= 0)
interp_prefix = "";
loglevel = 0; loglevel = 0;
optind = 1; optind = 1;
for(;;) { for(;;) {