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7401b26824
Before: Ten builds, laptop -j5, no ccache: ``` real 0m36.686000-38.956000(38.608+/-0.65)s user 2m32.864000-42.253000(40.7545+/-2.7)s sys 0m16.618000-18.316000(17.8531+/-0.48)s ``` Ten builds, laptop -j5, ccache (warm): ``` real 0m8.212000-8.577000(8.39989+/-0.13)s user 0m12.731000-13.212000(12.9751+/-0.17)s sys 0m3.697000-3.902000(3.83722+/-0.064)s ``` After: Ten builds, laptop -j5, no ccache: 8% faster ``` real 0m33.802000-35.773000(35.468+/-0.54)s user 2m19.073000-27.754000(26.2542+/-2.3)s sys 0m15.784000-17.173000(16.7165+/-0.37)s ``` Ten builds, laptop -j5, ccache (warm): 1% faster ``` real 0m8.200000-8.485000(8.30138+/-0.097)s user 0m12.485000-13.100000(12.7344+/-0.19)s sys 0m3.702000-3.889000(3.78787+/-0.056)s ``` Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#include <tests/fuzz/libfuzz.h>
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#include <assert.h>
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#include <ccan/isaac/isaac64.h>
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#include <common/pseudorand.h>
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
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int LLVMFuzzerInitialize(int *argc, char ***argv);
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/* Provide a non-random pseudo-random function to speed fuzzing. */
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static isaac64_ctx isaac64;
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uint64_t pseudorand(uint64_t max)
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{
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assert(max);
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return isaac64_next_uint(&isaac64, max);
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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isaac64_init(&isaac64, NULL, 0);
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run(data, size);
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return 0;
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}
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int LLVMFuzzerInitialize(int *argc, char ***argv) {
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init(argc, argv);
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return 0;
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}
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const uint8_t **get_chunks(const void *ctx, const uint8_t *data,
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size_t data_size, size_t chunk_size)
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{
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size_t n_chunks = data_size / chunk_size;
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const uint8_t **chunks = tal_arr(ctx, const uint8_t *, n_chunks);
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for (size_t i = 0; i < n_chunks; i++)
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chunks[i] = tal_dup_arr(chunks, const uint8_t,
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data + i * chunk_size, chunk_size, 0);
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return chunks;
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}
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char *to_string(const tal_t *ctx, const u8 *data, size_t data_size)
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{
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char *string = tal_arr(ctx, char, data_size + 1);
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for (size_t i = 0; i < data_size; i++)
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string[i] = (char) data[i] % (CHAR_MAX + 1);
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string[data_size] = '\0';
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return string;
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}
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