From 3434f152228af9fa619de254559815363f86868a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 18 Dec 2003 06:07:27 +0000 Subject: Update. 2003-12-18 Carlos O'Donell * sysdeps/unix/sysv/linux/hppa/clone.S (__clone) [PIC]: Save PIC, reload PIC if we need to call __syscall_error, cleanup asm. --- sysdeps/unix/sysv/linux/hppa/clone.S | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'sysdeps/unix/sysv/linux') diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S b/sysdeps/unix/sysv/linux/hppa/clone.S index 459eaff..4f3bb9e 100644 --- a/sysdeps/unix/sysv/linux/hppa/clone.S +++ b/sysdeps/unix/sysv/linux/hppa/clone.S @@ -42,6 +42,11 @@ ENTRY(__clone) stwm %arg0,64(%arg1) stw %arg3,-60(%arg1) + /* Save the PIC register. */ +#ifdef PIC + stw %r19,-32(%sr0, %sp) /* parent */ +#endif + /* Do the system call */ copy %arg2,%arg0 ble 0x100(%sr2,%r0) @@ -53,19 +58,31 @@ ENTRY(__clone) comib,=,n 0,%ret0,thread_start - /* Successful return from the parent */ + /* Successful return from the parent + No need to restore the PIC register, + since we return immediately. */ + bv %r0(%rp) nop /* Something bad happened -- no child created */ .Lerror: + + /* Restore the PIC register on error */ +#ifdef PIC + ldw -32(%sr0, %sp), %r19 /* parent */ +#endif + b __syscall_error sub %r0,%ret0,%arg0 thread_start: + /* Load up the arguments. */ - ldw -60(%sp),%arg0 - ldw -64(%sp),%r22 + ldw -60(%sr0, %sp),%arg0 + ldw -64(%sr0, %sp),%r22 + + /* $$dyncall fixes childs PIC register */ /* Call the user's function */ bl $$dyncall,%r31 -- cgit v1.1