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adds documentation for porting, resolves PR comments
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| #include <keystone/keystone.h> | ||
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| #include <string.h> | ||
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| FILE * outfile = NULL; | ||
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| int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { | ||
| ks_engine *ks; | ||
| ks_err err; | ||
| size_t count; | ||
| unsigned char *encode = NULL; | ||
| size_t size; | ||
| char * assembler; | ||
|
|
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| if (outfile == NULL) { | ||
| // we compute the output | ||
| outfile = fopen("/dev/null", "w"); | ||
| if (outfile == NULL) { | ||
| printf("failed opening /dev/null\n"); | ||
| abort(); | ||
| } | ||
| } | ||
|
|
||
| if (Size < 1) { | ||
| return 0; | ||
| } | ||
|
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| err = ks_open(KS_ARCH_RISCV, KS_MODE_RISCV32 + KS_MODE_LITTLE_ENDIAN, &ks); | ||
| if (err != KS_ERR_OK) { | ||
| printf("ERROR: failed on ks_open(), quit error = %u\n", err); | ||
| abort(); | ||
| } | ||
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| ks_option(ks, KS_OPT_SYNTAX, Data[Size-1]); | ||
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| assembler = malloc(Size); | ||
| memcpy(assembler, Data, Size-1); | ||
| //null terminate string | ||
| assembler[Size-1] = 0; | ||
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| if (ks_asm(ks, assembler, 0, &encode, &size, &count) != KS_ERR_OK) { | ||
| fprintf(outfile, "ERROR: ks_asm() failed & count = %lu, error = %u\n", | ||
| count, ks_errno(ks)); | ||
| } else { | ||
| size_t i; | ||
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| fprintf(outfile, "%s = ", assembler); | ||
| for (i = 0; i < size; i++) { | ||
| fprintf(outfile, "%02x ", encode[i]); | ||
| } | ||
| fprintf(outfile, "\n"); | ||
| fprintf(outfile, "Compiled: %lu bytes, statements: %lu\n", size, count); | ||
| } | ||
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| free(assembler); | ||
| // NOTE: free encode after usage to avoid leaking memory | ||
| if (encode != NULL) { | ||
| ks_free(encode); | ||
| } | ||
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| // close Keystone instance when done | ||
| ks_close(ks); | ||
|
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| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| #include <keystone/keystone.h> | ||
|
|
||
| #include <string.h> | ||
|
|
||
| FILE * outfile = NULL; | ||
|
|
||
|
|
||
| int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { | ||
| ks_engine *ks; | ||
| ks_err err; | ||
| size_t count; | ||
| unsigned char *encode = NULL; | ||
| size_t size; | ||
| char * assembler; | ||
|
|
||
| if (outfile == NULL) { | ||
| // we compute the output | ||
| outfile = fopen("/dev/null", "w"); | ||
| if (outfile == NULL) { | ||
| printf("failed opening /dev/null\n"); | ||
| abort(); | ||
| } | ||
| } | ||
|
|
||
| if (Size < 1) { | ||
| return 0; | ||
| } | ||
|
|
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| err = ks_open(KS_ARCH_RISCV, KS_MODE_RISCV64 + KS_MODE_LITTLE_ENDIAN, &ks); | ||
| if (err != KS_ERR_OK) { | ||
| printf("ERROR: failed on ks_open(), quit error = %u\n", err); | ||
| abort(); | ||
| } | ||
|
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| ks_option(ks, KS_OPT_SYNTAX, Data[Size-1]); | ||
|
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| assembler = malloc(Size); | ||
| memcpy(assembler, Data, Size-1); | ||
| //null terminate string | ||
| assembler[Size-1] = 0; | ||
|
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| if (ks_asm(ks, assembler, 0, &encode, &size, &count) != KS_ERR_OK) { | ||
| fprintf(outfile, "ERROR: ks_asm() failed & count = %lu, error = %u\n", | ||
| count, ks_errno(ks)); | ||
| } else { | ||
| size_t i; | ||
|
|
||
| fprintf(outfile, "%s = ", assembler); | ||
| for (i = 0; i < size; i++) { | ||
| fprintf(outfile, "%02x ", encode[i]); | ||
| } | ||
| fprintf(outfile, "\n"); | ||
| fprintf(outfile, "Compiled: %lu bytes, statements: %lu\n", size, count); | ||
| } | ||
|
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| free(assembler); | ||
| // NOTE: free encode after usage to avoid leaking memory | ||
| if (encode != NULL) { | ||
| ks_free(encode); | ||
| } | ||
|
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||
| // close Keystone instance when done | ||
| ks_close(ks); | ||
|
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||
| return 0; | ||
| } |
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