diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/hppa/clone.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/clone.S | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S b/sysdeps/unix/sysv/linux/hppa/clone.S index 0c581ec53b..372d29a838 100644 --- a/sysdeps/unix/sysv/linux/hppa/clone.S +++ b/sysdeps/unix/sysv/linux/hppa/clone.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1996-2018 Free Software Foundation, Inc. +/* Copyright (C) 1996-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by David Huggins-Daines <dhd@debian.org>, 2000. Based on the Alpha version by Richard Henderson <rth@tamu.edu>, 1996. @@ -15,7 +15,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library. If not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ /* clone() is even more special than fork() as it mucks with stacks and invokes a function in the right context after its all over. */ @@ -73,13 +73,18 @@ ENTRY(__clone) #endif /* Sanity check arguments. */ - comib,=,n 0, %arg0, .LerrorSanity /* no NULL function pointers */ - comib,=,n 0, %arg1, .LerrorSanity /* no NULL stack pointers */ + comib,=,n 0,%arg0,.LerrorSanity /* no NULL function pointers */ + comib,=,n 0,%arg1,.LerrorSanity /* no NULL stack pointers */ + + /* Ensure stack argument is 8-byte aligned. */ + ldo 7(%r25),%r25 + depi 0,31,3,%r25 /* Save the function pointer, arg, and flags on the new stack. */ stwm %r26, 64(%r25) stw %r23, -60(%r25) stw %r24, -56(%r25) + /* Clone arguments are (int flags, void * child_stack) */ copy %r24, %r26 /* flags are first */ /* User stack pointer is in the correct register already */ |