build: Integrate the merged gen assembler in the build system

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/assembler/disasm-main.c b/assembler/disasm-main.c
new file mode 100644
index 00000000..5cc1e7d1
--- /dev/null
+++ b/assembler/disasm-main.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright © 2008 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <unistd.h>
+
+#include "gen4asm.h"
+
+static const struct option longopts[] = {
+	{ NULL, 0, NULL, 0 }
+};
+
+static struct brw_program *
+read_program (FILE *input)
+{
+    uint32_t			    inst[4];
+    struct brw_program		    *program;
+    struct brw_program_instruction  *entry, **prev;
+    int			c;
+    int			n = 0;
+
+    program = malloc (sizeof (struct brw_program));
+    program->first = NULL;
+    prev = &program->first;
+    while ((c = getc (input)) != EOF) {
+	if (c == '0') {
+	    if (fscanf (input, "x%x", &inst[n]) == 1) {
+		++n;
+		if (n == 4) {
+		    entry = malloc (sizeof (struct brw_program_instruction));
+		    memcpy (&entry->instruction, inst, 4 * sizeof (uint32_t));
+		    entry->next = NULL;
+		    *prev = entry;
+		    prev = &entry->next;
+		    n = 0;
+		}
+	    }
+	}
+    }
+    return program;
+}
+
+static struct brw_program *
+read_program_binary (FILE *input)
+{
+    uint32_t			    temp;
+    uint8_t			    inst[16];
+    struct brw_program		    *program;
+    struct brw_program_instruction  *entry, **prev;
+    int			c;
+    int			n = 0;
+
+    program = malloc (sizeof (struct brw_program));
+    program->first = NULL;
+    prev = &program->first;
+    while ((c = getc (input)) != EOF) {
+	if (c == '0') {
+	    if (fscanf (input, "x%2x", &temp) == 1) {
+		inst[n++] = (uint8_t)temp;
+		if (n == 16) {
+		    entry = malloc (sizeof (struct brw_program_instruction));
+		    memcpy (&entry->instruction, inst, 16 * sizeof (uint8_t));
+		    entry->next = NULL;
+		    *prev = entry;
+		    prev = &entry->next;
+		    n = 0;
+		}
+	    }
+	}
+    }
+    return program;
+}
+
+static void usage(void)
+{
+    fprintf(stderr, "usage: intel-gen4disasm [-o outputfile] [-b] inputfile\n");
+}
+
+int main(int argc, char **argv)
+{
+    struct brw_program	*program;
+    FILE		*input = stdin;
+    FILE		*output = stdout;
+    char		*input_filename = NULL;
+    char		*output_file = NULL;
+    int			byte_array_input = 0;
+    int			o;
+    struct brw_program_instruction  *inst;
+
+    while ((o = getopt_long(argc, argv, "o:b", longopts, NULL)) != -1) {
+	switch (o) {
+	case 'o':
+	    if (strcmp(optarg, "-") != 0)
+		output_file = optarg;
+	    break;
+	case 'b':
+	    byte_array_input = 1;
+	    break;
+	default:
+	    usage();
+	    exit(1);
+	}
+    }
+    argc -= optind;
+    argv += optind;
+    if (argc != 1) {
+	usage();
+	exit(1);
+    }
+
+    if (strcmp(argv[0], "-") != 0) {
+	input_filename = argv[0];
+	input = fopen(input_filename, "r");
+	if (input == NULL) {
+	    perror("Couldn't open input file");
+	    exit(1);
+	}
+    }
+    if (byte_array_input)
+	program = read_program_binary (input);
+    else
+	program = read_program (input);
+    if (!program)
+	exit (1);
+    if (output_file) {
+	output = fopen (output_file, "w");
+	if (output == NULL) {
+	    perror("Couldn't open output file");
+	    exit(1);
+	}
+    }
+	    
+    for (inst = program->first; inst; inst = inst->next)
+	disasm (output, &inst->instruction);
+    exit (0);
+}