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author | Stafford Horne <shorne@gmail.com> | 2021-10-20 06:47:26 +0900 |
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committer | Stafford Horne <shorne@gmail.com> | 2022-01-05 06:40:05 +0900 |
commit | 6e5964311d57c017ed0af3d87095e54805f2541e (patch) | |
tree | 4051701820df33ddd05c3451f88b475b8f5dbdfc /sysdeps/or1k/jmpbuf-unwind.h | |
parent | 9dde3a24f132090fa8f88d6eaa2bc4c48f2e942f (diff) | |
download | glibc-6e5964311d57c017ed0af3d87095e54805f2541e.tar.gz glibc-6e5964311d57c017ed0af3d87095e54805f2541e.tar.xz glibc-6e5964311d57c017ed0af3d87095e54805f2541e.zip |
or1k: ABI Implementation
This code deals with the OpenRISC ABI. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/or1k/jmpbuf-unwind.h')
-rw-r--r-- | sysdeps/or1k/jmpbuf-unwind.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/or1k/jmpbuf-unwind.h b/sysdeps/or1k/jmpbuf-unwind.h new file mode 100644 index 0000000000..5714ac81db --- /dev/null +++ b/sysdeps/or1k/jmpbuf-unwind.h @@ -0,0 +1,36 @@ +/* Macros to help frame unwinding using jmpbuf. OpenRISC version. + Copyright (C) 2022 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 + <https://www.gnu.org/licenses/>. */ + +#include <setjmp.h> +#include <jmpbuf-offsets.h> +#include <stdint.h> +#include <unwind.h> + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ + ((void *) (address) < (void *) demangle (jmpbuf[__JMP_BUF_SP])) + +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) + +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[__JMP_BUF_SP] - (_adj)) + +/* We use the normal longjmp for unwinding. */ +#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) |