diff options
Diffstat (limited to 'src/third_party/unwind/dist/src/ia64/siglongjmp.S')
-rw-r--r-- | src/third_party/unwind/dist/src/ia64/siglongjmp.S | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/src/ia64/siglongjmp.S b/src/third_party/unwind/dist/src/ia64/siglongjmp.S new file mode 100644 index 00000000000..d77b43753bb --- /dev/null +++ b/src/third_party/unwind/dist/src/ia64/siglongjmp.S @@ -0,0 +1,69 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2003-2004 Hewlett-Packard Co + Contributed by David Mosberger-Tang <davidm@hpl.hp.com> + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#define SIG_SETMASK 2 + + .global _UI_siglongjmp_cont + .global sigprocmask + + .align 32 + .proc siglongjmp_continuation +siglongjmp_continuation: +_UI_siglongjmp_cont: // non-function label for siglongjmp.c + .prologue + .save rp, r15 + .body + nop 0 + nop 0 + br.call.sptk.many b6 = .next + ;; + .prologue + .save ar.pfs, r33 +.next: alloc loc1 = ar.pfs, 0, 3, 3, 0 + /* + * Note: we can use the scratch stack are because the caller + * of sigsetjmp() by definition is not a leaf-procedure. + */ + st8 [sp] = r17 // store signal mask + .save rp, loc0 + mov loc0 = r15 // final continuation point + ;; + .body + mov loc2 = r16 // value to return in r8 + + mov out0 = SIG_SETMASK + mov out1 = sp + mov out2 = r0 + br.call.sptk.many rp = sigprocmask + ;; + mov rp = loc0 + mov ar.pfs = loc1 + mov r8 = loc2 + br.ret.sptk.many rp + .endp siglongjmp_continuation +#ifdef __linux__ + /* We do not need executable stack. */ + .section .note.GNU-stack,"",@progbits +#endif |