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v1.1
>#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: */