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author | Masami Hiramatsu | 2017-11-24 16:10:25 +0100 |
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committer | Ingo Molnar | 2017-12-12 13:27:47 +0100 |
commit | 6b63dd119eb4eee44733ca435168ce05487b8644 (patch) | |
tree | b1cad462f6eaec04ebe6cd617f01be2287ba38b7 /arch/x86/tools/test_get_len.c | |
parent | Merge tag 'v4.15-rc3' into perf/core, to refresh the tree (diff) | |
download | kernel-qcow2-linux-6b63dd119eb4eee44733ca435168ce05487b8644.tar.gz kernel-qcow2-linux-6b63dd119eb4eee44733ca435168ce05487b8644.tar.xz kernel-qcow2-linux-6b63dd119eb4eee44733ca435168ce05487b8644.zip |
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.c | 173 |
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; -} |