diff options
Diffstat (limited to 'arch/alpha/lib/dbg_current.S')
| -rw-r--r-- | arch/alpha/lib/dbg_current.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/alpha/lib/dbg_current.S b/arch/alpha/lib/dbg_current.S new file mode 100644 index 0000000000..be66121312 --- /dev/null +++ b/arch/alpha/lib/dbg_current.S @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * arch/alpha/lib/dbg_current.S + * Contributed by Richard Henderson (rth@cygnus.com) + * + * Trap if we find current not correct. + */ + +#include <asm/pal.h> + + .text + .set noat + + .globl _mcount + .ent _mcount +_mcount: + .frame $30, 0, $28, 0 + .prologue 0 + + lda $0, -0x4000($30) + cmpult $8, $30, $1 + cmpule $0, $30, $2 + and $1, $2, $3 + bne $3, 1f + + call_pal PAL_bugchk + +1: ret $31, ($28), 1 + + .end _mcount |