mirror of
https://github.com/janet-lang/janet
synced 2024-12-01 04:19:55 +00:00
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 2017 Calvin Rose
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
/* Simple clone of the xxd tool used at build time. Used to
|
|
* create headers out of source files. Only used for core libraries
|
|
* like the bootstrapping code and the stl. */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
|
|
#define BUFSIZE 1024
|
|
#define PERLINE 10
|
|
|
|
int main(int argc, const char **argv) {
|
|
|
|
static const char hex[] = "0123456789ABCDEF";
|
|
char buf[BUFSIZE];
|
|
size_t bytesRead = 0;
|
|
int lineIndex = 0;
|
|
int line = 0;
|
|
|
|
if (argc != 4) {
|
|
fprintf(stderr, "Usage: %s infile outfile symbol\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
/* Open the files */
|
|
FILE *in = fopen(argv[1], "rb");
|
|
FILE *out = fopen(argv[2], "wb");
|
|
|
|
/* Check if files open successfully */
|
|
if (in == NULL) {
|
|
fprintf(stderr, "Could not open input file %s\n", argv[1]);
|
|
return 1;
|
|
} else if (out == NULL) {
|
|
fprintf(stderr, "Could not open output file %s\n", argv[2]);
|
|
return 1;
|
|
}
|
|
|
|
/* Write the header */
|
|
fprintf(out, "/* Auto generated - DO NOT EDIT */\n\n");
|
|
fprintf(out, "#include <stdint.h>\n\n");
|
|
fprintf(out, "const uint8_t dst_gen_%s[] = {", argv[3]);
|
|
|
|
/* Read in chunks from buffer */
|
|
while ((bytesRead = fread(buf, 1, sizeof(buf), in)) > 0) {
|
|
int i;
|
|
for (i = 0; i < bytesRead; ++i) {
|
|
int byte = ((uint8_t *)buf) [i];
|
|
|
|
/* Write the byte */
|
|
if (lineIndex++ == 0) {
|
|
if (line++)
|
|
fputc(',', out);
|
|
fputs("\n\t", out);
|
|
} else {
|
|
fputs(", ", out);
|
|
}
|
|
fputs("0x", out);
|
|
fputc(hex[byte & 0xF], out);
|
|
fputc(hex[byte >> 4], out);
|
|
|
|
/* Make line index wrap */
|
|
if (lineIndex >= PERLINE)
|
|
lineIndex = 0;
|
|
|
|
}
|
|
}
|
|
|
|
/* Write the tail */
|
|
fputs("\n};\n", out);
|
|
|
|
/* Close the file handles */
|
|
fclose(in);
|
|
fclose(out);
|
|
|
|
return 0;
|
|
} |