FreeCalypso > hg > fc-am-toolkit
view bootmatch/comp_output.c @ 12:fe5f7ba7f154
c139-analyze-boot utility put together, compiles
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 10 Jun 2023 04:58:26 +0000 |
parents | 39b921d851fb |
children |
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/* * This module is the output stage of our bootmatch compiler. */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include "comp_defs.h" extern u_char boot_image[BOOT_BLOCK_SIZE]; extern struct range range_list[MAX_RANGES]; extern unsigned range_count; extern char *output_array_name; static FILE *outf; static void emit_header() { fputs("#include <sys/types.h>\n", outf); fputs("#include \"bootmatch.h\"\n", outf); putc('\n', outf); } static void emit_refbytes_chunk(rp) struct range *rp; { u_char *dp, *endp; unsigned linelen; fprintf(outf, "static u_char refbytes_%04X[%u] = {\n", rp->offset, rp->nbytes); dp = boot_image + rp->offset; endp = dp + rp->nbytes; linelen = 0; while (dp < endp) { if (linelen >= 16) { putc('\n', outf); linelen = 0; } fprintf(outf, "0x%02X", *dp++); if (dp < endp) putc(',', outf); linelen++; } fputs("\n};\n\n", outf); } static void emit_refbytes_all() { unsigned n; for (n = 0; n < range_count; n++) emit_refbytes_chunk(range_list + n); } static void emit_bootmatch_array() { unsigned n; struct range *rp; fprintf(outf, "struct bootmatch %s[] = {\n", output_array_name); for (n = 0; n < range_count; n++) { rp = range_list + n; fprintf(outf, "\t{0x%04X, 0x%04X, refbytes_%04X},\n", rp->offset, rp->nbytes, rp->offset); } fputs("\t{0, 0, 0}\n};\n", outf); } void emit_output_file(filename) char *filename; { outf = fopen(filename, "w"); if (!outf) { perror(filename); exit(1); } emit_header(); emit_refbytes_all(); emit_bootmatch_array(); fclose(outf); }