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authorMasami Hiramatsu2017-11-24 16:10:25 +0100
committerIngo Molnar2017-12-12 13:27:47 +0100
commit6b63dd119eb4eee44733ca435168ce05487b8644 (patch)
treeb1cad462f6eaec04ebe6cd617f01be2287ba38b7 /arch/x86/tools/test_get_len.c
parentMerge tag 'v4.15-rc3' into perf/core, to refresh the tree (diff)
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x86/tools: Rename test_get_len to insn_decoder_test
Rename test_get_len test command to insn_decoder_test as it a more meaningful name. This also changes some comments in related files. Note that this also removes the paragraph about writing to the Free Software Foundation's mailing address. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/151153622537.22827.14928774603980883278.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/tools/test_get_len.c')
-rw-r--r--arch/x86/tools/test_get_len.c173
1 files changed, 0 insertions, 173 deletions
diff --git a/arch/x86/tools/test_get_len.c b/arch/x86/tools/test_get_len.c
deleted file mode 100644
index ecf31e0358c8..000000000000
--- a/arch/x86/tools/test_get_len.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2009
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include <unistd.h>
-
-#define unlikely(cond) (cond)
-
-#include <asm/insn.h>
-#include <inat.c>
-#include <insn.c>
-
-/*
- * Test of instruction analysis in general and insn_get_length() in
- * particular. See if insn_get_length() and the disassembler agree
- * on the length of each instruction in an elf disassembly.
- *
- * Usage: objdump -d a.out | awk -f distill.awk | ./test_get_len
- */
-
-const char *prog;
-static int verbose;
-static int x86_64;
-
-static void usage(void)
-{
- fprintf(stderr, "Usage: objdump -d a.out | awk -f distill.awk |"
- " %s [-y|-n] [-v]\n", prog);
- fprintf(stderr, "\t-y 64bit mode\n");
- fprintf(stderr, "\t-n 32bit mode\n");
- fprintf(stderr, "\t-v verbose mode\n");
- exit(1);
-}
-
-static void malformed_line(const char *line, int line_nr)
-{
- fprintf(stderr, "%s: malformed line %d:\n%s", prog, line_nr, line);
- exit(3);
-}
-
-static void dump_field(FILE *fp, const char *name, const char *indent,
- struct insn_field *field)
-{
- fprintf(fp, "%s.%s = {\n", indent, name);
- fprintf(fp, "%s\t.value = %d, bytes[] = {%x, %x, %x, %x},\n",
- indent, field->value, field->bytes[0], field->bytes[1],
- field->bytes[2], field->bytes[3]);
- fprintf(fp, "%s\t.got = %d, .nbytes = %d},\n", indent,
- field->got, field->nbytes);
-}
-
-static void dump_insn(FILE *fp, struct insn *insn)
-{
- fprintf(fp, "Instruction = {\n");
- dump_field(fp, "prefixes", "\t", &insn->prefixes);
- dump_field(fp, "rex_prefix", "\t", &insn->rex_prefix);
- dump_field(fp, "vex_prefix", "\t", &insn->vex_prefix);
- dump_field(fp, "opcode", "\t", &insn->opcode);
- dump_field(fp, "modrm", "\t", &insn->modrm);
- dump_field(fp, "sib", "\t", &insn->sib);
- dump_field(fp, "displacement", "\t", &insn->displacement);
- dump_field(fp, "immediate1", "\t", &insn->immediate1);
- dump_field(fp, "immediate2", "\t", &insn->immediate2);
- fprintf(fp, "\t.attr = %x, .opnd_bytes = %d, .addr_bytes = %d,\n",
- insn->attr, insn->opnd_bytes, insn->addr_bytes);
- fprintf(fp, "\t.length = %d, .x86_64 = %d, .kaddr = %p}\n",
- insn->length, insn->x86_64, insn->kaddr);
-}
-
-static void parse_args(int argc, char **argv)
-{
- int c;
- prog = argv[0];
- while ((c = getopt(argc, argv, "ynv")) != -1) {
- switch (c) {
- case 'y':
- x86_64 = 1;
- break;
- case 'n':
- x86_64 = 0;
- break;
- case 'v':
- verbose = 1;
- break;
- default:
- usage();
- }
- }
-}
-
-#define BUFSIZE 256
-
-int main(int argc, char **argv)
-{
- char line[BUFSIZE], sym[BUFSIZE] = "<unknown>";
- unsigned char insn_buf[16];
- struct insn insn;
- int insns = 0;
- int warnings = 0;
-
- parse_args(argc, argv);
-
- while (fgets(line, BUFSIZE, stdin)) {
- char copy[BUFSIZE], *s, *tab1, *tab2;
- int nb = 0;
- unsigned int b;
-
- if (line[0] == '<') {
- /* Symbol line */
- strcpy(sym, line);
- continue;
- }
-
- insns++;
- memset(insn_buf, 0, 16);
- strcpy(copy, line);
- tab1 = strchr(copy, '\t');
- if (!tab1)
- malformed_line(line, insns);
- s = tab1 + 1;
- s += strspn(s, " ");
- tab2 = strchr(s, '\t');
- if (!tab2)
- malformed_line(line, insns);
- *tab2 = '\0'; /* Characters beyond tab2 aren't examined */
- while (s < tab2) {
- if (sscanf(s, "%x", &b) == 1) {
- insn_buf[nb++] = (unsigned char) b;
- s += 3;
- } else
- break;
- }
- /* Decode an instruction */
- insn_init(&insn, insn_buf, sizeof(insn_buf), x86_64);
- insn_get_length(&insn);
- if (insn.length != nb) {
- warnings++;
- fprintf(stderr, "Warning: %s found difference at %s\n",
- prog, sym);
- fprintf(stderr, "Warning: %s", line);
- fprintf(stderr, "Warning: objdump says %d bytes, but "
- "insn_get_length() says %d\n", nb,
- insn.length);
- if (verbose)
- dump_insn(stderr, &insn);
- }
- }
- if (warnings)
- fprintf(stderr, "Warning: decoded and checked %d"
- " instructions with %d warnings\n", insns, warnings);
- else
- fprintf(stdout, "Success: decoded and checked %d"
- " instructions\n", insns);
- return 0;
-}