From a70c0c042166ecc6648031da05fccc3ecd2e8fc1 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 2 Nov 2002 21:35:39 -0800 Subject: [PATCH] New file to debug clobbers of "current". --- arch/alpha/lib/dbg_current.S | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 arch/alpha/lib/dbg_current.S diff --git a/arch/alpha/lib/dbg_current.S b/arch/alpha/lib/dbg_current.S new file mode 100644 index 000000000000..e6d071015f9b --- /dev/null +++ b/arch/alpha/lib/dbg_current.S @@ -0,0 +1,29 @@ +/* + * arch/alpha/lib/dbg_current.S + * Contributed by Richard Henderson (rth@cygnus.com) + * + * Trap if we find current not correct. + */ + +#include + + .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 -- 2.39.5