30 lines
572 B
Plaintext
30 lines
572 B
Plaintext
#include <stdio.h>
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#include <sys/mman.h>
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#include <string.h>
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#include <pari/pari.h>
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int
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test(int a, int b)
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{
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char code[] = {0x8B, 0x44, 0x24, 0x4, 0x3, 0x44, 0x24, 0x8, 0xC3};
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void *buf;
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int c;
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/* copy code to executable buffer */
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buf = mmap (0,sizeof(code),PROT_READ|PROT_WRITE|PROT_EXEC,
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MAP_PRIVATE|MAP_ANON,-1,0);
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memcpy (buf, code, sizeof(code));
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/* run code */
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c = ((int (*) (int, int))buf)(a, b);
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/* free buffer */
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munmap (buf, sizeof(code));
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return c;
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}
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void
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init_auto(void)
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{
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pari_printf("%d\n", test(7,12));
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return 0;
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}
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