diff options
Diffstat (limited to 'sysdeps/alpha/setjmp.S')
| -rw-r--r-- | sysdeps/alpha/setjmp.S | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sysdeps/alpha/setjmp.S b/sysdeps/alpha/setjmp.S new file mode 100644 index 0000000000..f79837c86b --- /dev/null +++ b/sysdeps/alpha/setjmp.S @@ -0,0 +1,119 @@ +/* Copyright (C) 1992-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + 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/>. */ + +#define __ASSEMBLY__ + +#include <sysdep.h> +#include <jmpbuf-offsets.h> + + .ent __sigsetjmp + .global __sigsetjmp +__sigsetjmp: + ldgp gp, 0(pv) + +$sigsetjmp_local: +#ifndef PIC +#define FRAME 16 + subq sp, FRAME, sp + .frame sp, FRAME, ra, 0 + stq ra, 0(sp) + .mask 0x04000000, -FRAME +#else +#define FRAME 0 + .frame sp, FRAME, ra, 0 +#endif +#ifdef PROF + .set noat + lda AT, _mcount + jsr AT, (AT), _mcount + .set at +#endif + .prologue 1 + + stq s0, JB_S0*8(a0) + stq s1, JB_S1*8(a0) + stq s2, JB_S2*8(a0) + stq s3, JB_S3*8(a0) + stq s4, JB_S4*8(a0) + stq s5, JB_S5*8(a0) +#ifdef PTR_MANGLE + PTR_MANGLE(t1, ra, t0) + stq t1, JB_PC*8(a0) +#else + stq ra, JB_PC*8(a0) +#endif +#if defined(PTR_MANGLE) && FRAME == 0 + PTR_MANGLE2(t1, sp, t0) +#else + addq sp, FRAME, t1 +# ifdef PTR_MANGLE + PTR_MANGLE2(t1, t1, t0) +# endif +#endif + stq t1, JB_SP*8(a0) +#ifdef PTR_MANGLE + PTR_MANGLE2(t1, fp, t0) + stq t1, JB_FP*8(a0) +#else + stq fp, JB_FP*8(a0) +#endif + stt $f2, JB_F2*8(a0) + stt $f3, JB_F3*8(a0) + stt $f4, JB_F4*8(a0) + stt $f5, JB_F5*8(a0) + stt $f6, JB_F6*8(a0) + stt $f7, JB_F7*8(a0) + stt $f8, JB_F8*8(a0) + stt $f9, JB_F9*8(a0) + +#ifndef PIC + /* Call to C to (potentially) save our signal mask. */ + jsr ra, __sigjmp_save + ldq ra, 0(sp) + addq sp, 16, sp + ret +#elif defined NOT_IN_libc && defined IS_IN_rtld + /* In ld.so we never save the signal mask. */ + mov 0, v0 + ret +#else + /* Tailcall to save the signal mask. */ + br $31, __sigjmp_save !samegp +#endif + +END(__sigsetjmp) + +/* Put these traditional entry points in the same file so that we can + elide much of the nonsense in trying to jmp to the real function. */ + +ENTRY(_setjmp) + ldgp gp, 0(pv) + .prologue 1 + mov 0, a1 + br $sigsetjmp_local +END(_setjmp) +libc_hidden_def (_setjmp) + +ENTRY(setjmp) + ldgp gp, 0(pv) + .prologue 1 + mov 1, a1 + br $sigsetjmp_local +END(setjmp) + +weak_extern(_setjmp) +weak_extern(setjmp) |