mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-21 05:50:55 +08:00
Chris Tate
0845c7ff56
* Make native installs portable and smaller - Support glibc 2.34 with portable compiler binaries and static LLVM helpers. - Bundle the host runtime and discover optional cross-target packs from project dependencies. - Add application build benchmarks covering latency, executable size, and memory. * Keep bootstrap tools available in Sandbox validation - Isolate Zig for native compiler bootstrap and glibc entropy contracts. - Preserve the existing toolchain scope for cache and corpus tests. * Fix portable compiler bootstrap linking - Keep native support objects compatible with the destination host linker. - Resolve installed targets using the host declared by the toolchain manifest.
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#include "scr_runtime.h"
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#include <assert.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <stdio.h>
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static jmp_buf panic;
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static int calls;
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static int mode;
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static unsigned char next_byte;
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ssize_t getrandom(void *buf, size_t n, unsigned int flags) {
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assert(flags == 0);
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calls++;
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if (mode == 1) return 0;
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if (mode == 2) { errno = EIO; return -1; }
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if (calls == 1) { errno = EINTR; return -1; }
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size_t count = n < 3 ? n : 3;
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unsigned char *bytes = buf;
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for (size_t i = 0; i < count; i++) bytes[i] = next_byte++;
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return (ssize_t)count;
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}
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_Noreturn void scr_trap(const char *message) {
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assert(strcmp(message, "scriptc: getrandom failed\n") == 0);
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longjmp(panic, 1);
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}
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int main(void) {
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unsigned char bytes[17];
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memset(bytes, 255, sizeof bytes);
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arc4random_buf(bytes, 0);
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assert(calls == 0);
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arc4random_buf(bytes, sizeof bytes);
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assert(calls == 7);
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for (size_t i = 0; i < sizeof bytes; i++) assert(bytes[i] == i);
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for (mode = 1; mode <= 2; mode++) {
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if (setjmp(panic) == 0) {
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arc4random_buf(bytes, sizeof bytes);
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assert(0 && "entropy failure must trap");
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}
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}
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puts("entropy retries and failures verified");
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return 0;
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}
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