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ST: Define and use a new jmpbuf. v5.0.57

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winlin 2022-09-01 11:51:04 +08:00
parent 7d47017a00
commit eb2056db25
8 changed files with 104 additions and 162 deletions
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27
trunk/3rdparty/st-srs/tools/jmpbuf/jmpbuf.c vendored
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@ -4,13 +4,36 @@
#include <stdio.h>
#include <setjmp.h>
/* We define the jmpbuf, because the system's is different in different OS */
typedef struct _st_jmp_buf {
/*
* OS CPU SIZE
* Darwin __amd64__/__x86_64__ long[8]
* Darwin __aarch64__ long[22]
* Linux __i386__ long[6]
* Linux __amd64__/__x86_64__ long[8]
* Linux __aarch64__ long[22]
* Linux __arm__ long[16]
* Linux __mips__/__mips64 long[13]
* Linux __riscv long[14]
* Linux __loongarch64 long[12]
* Cygwin64 __amd64__/__x86_64__ long[8]
*/
long __jmpbuf[22];
} _st_jmp_buf_t[1];
int main(int argc, char** argv)
{
jmp_buf ctx = {0};
int r0 = setjmp(ctx);
int nn_jb = sizeof(ctx);
printf("r0=%d, sizeof(jmp_buf)=%d (unsigned long long [%d])\n", r0, nn_jb, nn_jb/8);
printf("jmp_buf: r0=%d, sizeof(jmp_buf)=%d (unsigned long long [%d])\n", r0, nn_jb, nn_jb/8);
_st_jmp_buf_t ctx2 = {0};
int r1 = sizeof(_st_jmp_buf_t);
int r2 = sizeof(ctx2);
printf("_st_jmp_buf_t: sizeof(_st_jmp_buf_t)=%d/%d (unsigned long long [%d])\n", r1, r2, r2/8);
return 0;
}