diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/init-first.c')
| -rw-r--r-- | sysdeps/mach/hurd/i386/init-first.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/i386/init-first.c b/sysdeps/mach/hurd/i386/init-first.c index 55ffe1aada..d747e75c7d 100644 --- a/sysdeps/mach/hurd/i386/init-first.c +++ b/sysdeps/mach/hurd/i386/init-first.c @@ -20,6 +20,7 @@ Cambridge, MA 02139, USA. */ #include <hurd.h> #include <stdio.h> #include <unistd.h> +#include <string.h> #include "hurdstartup.h" #include "set-hooks.h" #include "hurdmalloc.h" /* XXX */ @@ -118,9 +119,23 @@ init (int *data, int retaddr) { /* Initialize cthreads, which will allocate us a new stack to run on. */ void *newsp = (*_cthread_init_routine) (); + struct hurd_startup_data *od; + /* Copy the argdata from the old stack to the new one. */ newsp = memcpy (newsp - ((char *) &d[1] - (char *) data), data, - (char *) &d[1] - (char *) data); + (char *) d - (char *) data); + + /* Set up the Hurd startup data block immediately following + the argument and environment pointers on the new stack. */ + od = (newsp + ((char *) d - (char *) data)); + if ((void *) argv[0] == d) + /* We were started up by the kernel with arguments on the stack. + There is no Hurd startup data, so zero the block. */ + memset (od, 0, sizeof *od); + else + /* Copy the Hurd startup data block to the new stack. */ + *od = *d; + data = newsp; } |