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39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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/*
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arm-linux-gnueabi-g++ -g -o jmp_sp jmp_sp.cpp -static
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arm-linux-gnueabi-strip jmp_sp
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <setjmp.h>
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int main(int argc, char** argv) {
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#if defined(__amd64__) || defined(__x86_64__)
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printf("x86_64 sizeof(long int)=%d, sizeof(long)=%d, sizeof(int)=%d\n", (int)sizeof(long int), (int)sizeof(long), (int)sizeof(int));
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#else
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printf("arm sizeof(long int)=%d, sizeof(long)=%d, sizeof(int)=%d\n", (int)sizeof(long int), (int)sizeof(long), (int)sizeof(int));
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#endif
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jmp_buf env;
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int ret = setjmp(env);
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printf("setjmp func1 ret=%d\n", ret);
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#if defined(__amd64__) || defined(__x86_64__)
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// typedef lint64_t __jmp_buf[8];
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printf("after setjmp: ");
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for (int i = 0; i < 8; i++) {
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printf("env[%d]=%#x, ", i, (int)env[0].__jmpbuf[i]);
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}
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printf("\n");
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#else
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// typedef int32_t __jmp_buf[64] __attribute__((__aligned__ (8)));
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printf("after setjmp: ");
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for (int i = 0; i < 64; i++) {
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printf("env[%d]=%#x, ", i, (int)env[0].__jmpbuf[i]);
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}
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printf("\n");
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#endif
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return 0;
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}
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