huntedbytheirsandSisyphus
370e64c3a6
smoke links crt0.o + libc.a with -nostdlib -static and proves the whole chain runs without the dynamic linker; bench_strlen and bench_syscall measure the string core and raw syscall round-trip cost via make bench. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <[email protected]>
31 lines
756 B
C
31 lines
756 B
C
/*
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* smoke.c — end-to-end smoke test.
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*
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* Linked with crt0.o + libc.a, -nostdlib -static: if this binary runs at
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* all, the whole chain works — entry point, main(), our string code, and
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* raw syscalls — with no dynamic linker and no glibc in the process.
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*/
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#include <string.h>
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#include <unistd.h>
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int main(void)
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{
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static const char msg[] = "nulsl-libc smoke test: ok\n";
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if (strcmp("abc", "abc") != 0)
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return 1;
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if (strcmp("abc", "abd") == 0)
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return 2;
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if (strncmp("abcdef", "abcxyz", 3) != 0)
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return 3;
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if (strlen("nulsl") != 5)
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return 4;
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if (memcmp("abcd", "abce", 3) != 0)
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return 5;
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if (write(STDOUT_FILENO, msg, sizeof msg - 1) < 0)
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return 6;
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return 0;
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}
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