diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/init-first.c | 20 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/syscalls.list | 1 |
2 files changed, 9 insertions, 12 deletions
diff --git a/sysdeps/unix/sysv/linux/init-first.c b/sysdeps/unix/sysv/linux/init-first.c index 9d7774a..6d974ea 100644 --- a/sysdeps/unix/sysv/linux/init-first.c +++ b/sysdeps/unix/sysv/linux/init-first.c @@ -32,22 +32,18 @@ extern void __libc_global_ctors (void); static void init (int *data) { + extern int __personality (int); + int argc = *data; char **argv = (void *) (data + 1); char **envp = &argv[argc + 1]; -#ifdef __i386__ - /* 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))); -#endif + /* The `personality' system call takes one argument that chooses the + "personality", i.e. the set of system calls and such. Zero is the + native Linux value; we must make this call first thing to disable + emulation of some other system that might have been enabled by default + based on the executable format. */ + __personality (0); /* Set the FPU control word to the proper default value. */ __setfpucw (__fpu_control); diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index 7d199bd..2da874e 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -15,6 +15,7 @@ mlockall - mlockall 1 __mlockall mlockall mount - mount 5 __mount mount munlock - munlock 2 __munlock munlock munlockall - munlockall 0 __munlockall munlockall +personality init-first personality 1 __personality personality pipe - pipe 1 __pipe pipe reboot - reboot 3 reboot s_ptrace ptrace ptrace 4 __syscall_ptrace |