From: Michael Buesch <mb@bu3sch.de>
Date: Thu, 19 Jun 2008 12:35:00 +0000 (+0200)
Subject: b43-dasm: Allow disassembling files without header.
X-Git-Tag: b43-fwcutter-013~35
X-Git-Url: https://jxself.org/git/?p=b43-tools.git;a=commitdiff_plain;h=5f64c0b044987477a749708afa6ce673609cd42c

b43-dasm: Allow disassembling files without header.
Also add a parameter to print the code addresses

Signed-off-by: Michael Buesch <mb@bu3sch.de>
---

diff --git a/disassembler/args.c b/disassembler/args.c
index 2848089..d48100e 100644
--- a/disassembler/args.c
+++ b/disassembler/args.c
@@ -25,7 +25,9 @@
 int _debug;
 
 struct cmdline_args cmdargs = {
-	.arch = 5,	/* Default to v5 architecture. */
+	.arch = 5,		/* Default to v5 architecture. */
+	.no_header = 0,		/* Input file does not have a header. */
+	.print_addresses = 0,	/* Print the code addresses in the output. */
 };
 
 #define ARG_MATCH		0
@@ -99,6 +101,8 @@ static void usage(int argc, char **argv)
 	fprintf(stderr, "Usage: %s INPUT_FILE OUTPUT_FILE [OPTIONS]\n", argv[0]);
 	fprintf(stderr, "  -a|--arch ARCH      The architecture type of the input file\n");
 	fprintf(stderr, "  -h|--help           Print this help\n");
+	fprintf(stderr, "  --nohdr             The input file does not have a header\n");
+	fprintf(stderr, "  --paddr             Print the code addresses\n");
 	fprintf(stderr, "  -d|--debug          Print verbose debugging info\n");
 	fprintf(stderr, "                      Repeat for more verbose debugging\n");
 }
@@ -116,6 +120,10 @@ int parse_args(int argc, char **argv)
 		if ((res = cmp_arg(argv, &i, "--help", "-h", 0)) == ARG_MATCH) {
 			usage(argc, argv);
 			return 1;
+		} else if ((res = cmp_arg(argv, &i, "--nohdr", 0, 0)) == ARG_MATCH) {
+			cmdargs.no_header = 1;
+		} else if ((res = cmp_arg(argv, &i, "--paddr", 0, 0)) == ARG_MATCH) {
+			cmdargs.print_addresses = 1;
 		} else if ((res = cmp_arg(argv, &i, "--debug", "-d", 0)) == ARG_MATCH) {
 			_debug++;
 		} else if ((res = cmp_arg(argv, &i, "--arch", "-a", &param)) == ARG_MATCH) {
diff --git a/disassembler/args.h b/disassembler/args.h
index d13fa66..8dc69f2 100644
--- a/disassembler/args.h
+++ b/disassembler/args.h
@@ -3,6 +3,8 @@
 
 struct cmdline_args {
 	unsigned int arch;
+	int no_header;
+	int print_addresses;
 };
 
 int parse_args(int argc, char **argv);
diff --git a/disassembler/main.c b/disassembler/main.c
index 718e33f..dbd2b5f 100644
--- a/disassembler/main.c
+++ b/disassembler/main.c
@@ -638,6 +638,7 @@ static void emit_asm(struct disassembler_context *ctx)
 	struct statement *stmt;
 	int first, i;
 	int err;
+	unsigned int addr = 0;
 
 	err = open_output_file();
 	if (err)
@@ -647,6 +648,8 @@ static void emit_asm(struct disassembler_context *ctx)
 	list_for_each_entry(stmt, &ctx->stmt_list, list) {
 		switch (stmt->type) {
 		case STMT_INSN:
+			if (cmdargs.print_addresses)
+				fprintf(outfile, "/* %03X */", addr);
 			fprintf(outfile, "\t%s", stmt->u.insn.name);
 			first = 1;
 			for (i = 0; i < ARRAY_SIZE(stmt->u.insn.operands); i++) {
@@ -665,6 +668,7 @@ static void emit_asm(struct disassembler_context *ctx)
 					stmt->u.insn.operands[i]);
 			}
 			fprintf(outfile, "\n");
+			addr++;
 			break;
 		case STMT_LABEL:
 			fprintf(outfile, "%s:\n", stmt->u.label.name);
@@ -689,18 +693,20 @@ static int read_input(struct disassembler_context *ctx)
 	if (err)
 		goto error;
 
-	ret = fread(&hdr, 1, sizeof(hdr), infile);
-	if (ret != sizeof(hdr)) {
-		fprintf(stderr, "Corrupt input file (not fwcutter output)\n");
-		goto err_close;
-	}
-	if (hdr.type != FW_TYPE_UCODE) {
-		fprintf(stderr, "Corrupt input file. Not a microcode image.\n");
-		goto err_close;
-	}
-	if (hdr.ver != FW_HDR_VER) {
-		fprintf(stderr, "Invalid input file header version.\n");
-		goto err_close;
+	if (!cmdargs.no_header) {
+		ret = fread(&hdr, 1, sizeof(hdr), infile);
+		if (ret != sizeof(hdr)) {
+			fprintf(stderr, "Corrupt input file (not fwcutter output)\n");
+			goto err_close;
+		}
+		if (hdr.type != FW_TYPE_UCODE) {
+			fprintf(stderr, "Corrupt input file. Not a microcode image.\n");
+			goto err_close;
+		}
+		if (hdr.ver != FW_HDR_VER) {
+			fprintf(stderr, "Invalid input file header version.\n");
+			goto err_close;
+		}
 	}
 
 	while (1) {