diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/init-first.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/init-first.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.c b/sysdeps/unix/sysv/linux/i386/init-first.c index 0177daae24..84b5ff9f2c 100644 --- a/sysdeps/unix/sysv/linux/i386/init-first.c +++ b/sysdeps/unix/sysv/linux/i386/init-first.c @@ -18,6 +18,7 @@ not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <unistd.h> +#include <sysdep.h> #include "fpu_control.h" extern void __libc_init (int, char **, char **); @@ -31,9 +32,16 @@ init (int *data) char **argv = (void *) (data + 1); char **envp = &argv[argc + 1]; - /* Make sure we are not using iBSC2 personality. */ - asm ("int $0x80 # syscall no %0, arg %1" - : : "a" (SYS_ify (personality)), "b" (0)); + /* Make sure we are not using the iBSC2 personality. The `personality' + syscall takes one argument; zero means the Linux personality. The + argument arrives in %ebx; we have to save and restore %ebx by hand + here, because GCC (as of 2.7.0) cannot handle saving and restoring it + for us when it is the dedicated GOT register for PIC. */ + asm ("pushl %%ebx\n" + "xorl %%ebx, %%ebx\n" + "int $0x80 # syscall no %0\n" + "popl %%ebx" + : : "a" (SYS_ify (personality))); /* Set the FPU control word to the proper default value. */ __setfpucw (___fpu_control); |