c379999665
Fix additional a few additional deviations reported elsewhere by checkstyle Change-Id: I026a8ae1c5b1856bbe3c4a555e1b690e7501b045 Signed-off-by: Dave Barach <dave@barachs.net>
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/*
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* Copyright (c) 2015 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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Copyright (c) 2005 Eliot Dresselhaus
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef included_clib_longjmp_h
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#define included_clib_longjmp_h
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#include <vppinfra/types.h>
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#if defined(__x86_64__)
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/* rbx, rbp, r12, r13, r14, r15, eip, rsp */
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#define CLIB_ARCH_LONGJMP_REGS 8
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#elif defined(i386)
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/* ebx, ebp, esi, edi, eip, rsp */
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#define CLIB_ARCH_LONGJMP_REGS 6
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#elif (defined(__powerpc64__) || defined(__powerpc__))
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#ifdef __ALTIVEC__
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#define CLIB_POWERPC_ALTIVEC_N_REGS 12
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#else
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#define CLIB_POWERPC_ALTIVEC_N_REGS 0
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#endif
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/* r1 r2 link condition+vsave regs 14-31 fp regs 14-31 vector regs 20-31 */
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#define CLIB_ARCH_LONGJMP_REGS \
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(/* r1 lr cr vrsave */ \
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4 \
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/* gp */ \
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+ (31 - 14 + 1) \
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/* fp */ \
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+ (sizeof (f64) / sizeof (uword)) * (31 - 14 + 1) \
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/* vector regs */ \
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+ (16 / sizeof (uword)) * CLIB_POWERPC_ALTIVEC_N_REGS)
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#elif defined(__SPU__)
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/* FIXME */
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#define CLIB_ARCH_LONGJMP_REGS (10)
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#elif defined(__arm__)
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#ifndef __IWMMXT__
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/* v1-v6 sl fp sp lr */
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#define CLIB_ARCH_LONGJMP_REGS (10)
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#else
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/* For iwmmxt we save 6 extra 8 byte registers. */
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#define CLIB_ARCH_LONGJMP_REGS (10 + (6*2))
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#endif
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#elif defined(__xtensa__)
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/* setjmp/longjmp not supported for the moment. */
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#define CLIB_ARCH_LONGJMP_REGS 0
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#elif defined(__TMS320C6X__)
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/* setjmp/longjmp not supported for the moment. */
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#define CLIB_ARCH_LONGJMP_REGS 0
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#elif defined(__aarch64__)
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#define CLIB_ARCH_LONGJMP_REGS (22)
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#else
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#error "unknown machine"
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#endif
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typedef struct
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{
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uword regs[CLIB_ARCH_LONGJMP_REGS];
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} clib_longjmp_t __attribute__ ((aligned (16)));
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/* Return given value to saved context. */
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void clib_longjmp (clib_longjmp_t * save, uword return_value);
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/* Save context. Returns given value if jump is not taken;
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otherwise returns value from clib_longjmp if long jump is taken. */
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uword clib_setjmp (clib_longjmp_t * save, uword return_value_not_taken);
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/* Call function on given stack. */
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uword clib_calljmp (uword (*func) (uword func_arg),
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uword func_arg, void *stack);
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#endif /* included_clib_longjmp_h */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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