diff options
author | Damjan Marion <damarion@cisco.com> | 2016-12-19 23:05:39 +0100 |
---|---|---|
committer | Damjan Marion <damarion@cisco.com> | 2016-12-28 12:25:14 +0100 |
commit | 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 (patch) | |
tree | 5de62f8dbd3a752f5a676ca600e43d2652d1ff1a /src/vppinfra/longjmp.h | |
parent | 696f1adec0df3b8f161862566dd9c86174302658 (diff) |
Reorganize source tree to use single autotools instance
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra/longjmp.h')
-rw-r--r-- | src/vppinfra/longjmp.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/vppinfra/longjmp.h b/src/vppinfra/longjmp.h new file mode 100644 index 00000000000..8d83203e41d --- /dev/null +++ b/src/vppinfra/longjmp.h @@ -0,0 +1,124 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + Copyright (c) 2005 Eliot Dresselhaus + + 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. +*/ + +#ifndef included_clib_longjmp_h +#define included_clib_longjmp_h + +#include <vppinfra/types.h> + +#if defined(__x86_64__) +/* rbx, rbp, r12, r13, r14, r15, eip, rsp */ +#define CLIB_ARCH_LONGJMP_REGS 8 + +#elif defined(i386) +/* ebx, ebp, esi, edi, eip, rsp */ +#define CLIB_ARCH_LONGJMP_REGS 6 + +#elif (defined(__powerpc64__) || defined(__powerpc__)) + +#ifdef __ALTIVEC__ +#define CLIB_POWERPC_ALTIVEC_N_REGS 12 +#else +#define CLIB_POWERPC_ALTIVEC_N_REGS 0 +#endif + +/* r1 r2 link condition+vsave regs 14-31 fp regs 14-31 vector regs 20-31 */ +#define CLIB_ARCH_LONGJMP_REGS \ + (/* r1 lr cr vrsave */ \ + 4 \ + /* gp */ \ + + (31 - 14 + 1) \ + /* fp */ \ + + (sizeof (f64) / sizeof (uword)) * (31 - 14 + 1) \ + /* vector regs */ \ + + (16 / sizeof (uword)) * CLIB_POWERPC_ALTIVEC_N_REGS) + +#elif defined(__SPU__) +/* FIXME */ +#define CLIB_ARCH_LONGJMP_REGS (10) + +#elif defined(__arm__) + +#ifndef __IWMMXT__ +/* v1-v6 sl fp sp lr */ +#define CLIB_ARCH_LONGJMP_REGS (10) +#else +/* For iwmmxt we save 6 extra 8 byte registers. */ +#define CLIB_ARCH_LONGJMP_REGS (10 + (6*2)) +#endif + +#elif defined(__xtensa__) + +/* setjmp/longjmp not supported for the moment. */ +#define CLIB_ARCH_LONGJMP_REGS 0 + +#elif defined(__TMS320C6X__) + +/* setjmp/longjmp not supported for the moment. */ +#define CLIB_ARCH_LONGJMP_REGS 0 + +#elif defined(__aarch64__) +#define CLIB_ARCH_LONGJMP_REGS (22) +#else +#error "unknown machine" +#endif + +typedef struct +{ + uword regs[CLIB_ARCH_LONGJMP_REGS]; +} clib_longjmp_t __attribute__ ((aligned (16))); + +/* Return given value to saved context. */ +void clib_longjmp (clib_longjmp_t * save, uword return_value); + +/* Save context. Returns given value if jump is not taken; + otherwise returns value from clib_longjmp if long jump is taken. */ +uword clib_setjmp (clib_longjmp_t * save, uword return_value_not_taken); + +/* Call function on given stack. */ +uword clib_calljmp (uword (*func) (uword func_arg), + uword func_arg, void *stack); + +#endif /* included_clib_longjmp_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |