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Message-Id: <151153625409.22827.10470603625519700259.stgit@devbox>
Date: Sat, 25 Nov 2017 00:10:54 +0900
From: Masami Hiramatsu <mhiramat@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>, x86@...nel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Peter Zijlstra <peterz@...radead.org>,
"H . Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
linux-kernel@...r.kernel.org
Subject: [PATCH -tip 2/3] x86: tools: Rename distill.awk to objdump_reformat.awk
Rename distill.awk to objdump_reformat.awk because
it actually re-format the output of objdump so that
insn_decoder_test can read it.
Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
arch/x86/tools/Makefile | 4 +--
arch/x86/tools/distill.awk | 48 -----------------------------------
arch/x86/tools/insn_decoder_test.c | 6 ++--
arch/x86/tools/objdump_reformat.awk | 48 +++++++++++++++++++++++++++++++++++
4 files changed, 53 insertions(+), 53 deletions(-)
delete mode 100644 arch/x86/tools/distill.awk
create mode 100644 arch/x86/tools/objdump_reformat.awk
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index b0d75684d313..09af7ff53044 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -13,11 +13,11 @@ else
posttest_64bit = -n
endif
-distill_awk = $(srctree)/arch/x86/tools/distill.awk
+reformatter = $(srctree)/arch/x86/tools/objdump_reformat.awk
chkobjdump = $(srctree)/arch/x86/tools/chkobjdump.awk
quiet_cmd_posttest = TEST $@
- cmd_posttest = ($(OBJDUMP) -v | $(AWK) -f $(chkobjdump)) || $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(distill_awk) | $(obj)/insn_decoder_test $(posttest_64bit) $(posttest_verbose)
+ cmd_posttest = ($(OBJDUMP) -v | $(AWK) -f $(chkobjdump)) || $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(reformatter) | $(obj)/insn_decoder_test $(posttest_64bit) $(posttest_verbose)
quiet_cmd_sanitytest = TEST $@
cmd_sanitytest = $(obj)/insn_sanity $(posttest_64bit) -m 1000000
diff --git a/arch/x86/tools/distill.awk b/arch/x86/tools/distill.awk
deleted file mode 100644
index 80cd7d53bd07..000000000000
--- a/arch/x86/tools/distill.awk
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/bin/awk -f
-# SPDX-License-Identifier: GPL-2.0
-# Usage: objdump -d a.out | awk -f distill.awk | ./insn_decoder_test
-# Distills the disassembly as follows:
-# - Removes all lines except the disassembled instructions.
-# - For instructions that exceed 1 line (7 bytes), crams all the hex bytes
-# into a single line.
-# - Remove bad(or prefix only) instructions
-
-BEGIN {
- prev_addr = ""
- prev_hex = ""
- prev_mnemonic = ""
- bad_expr = "(\\(bad\\)|^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))"
- fwait_expr = "^9b "
- fwait_str="9b\tfwait"
-}
-
-/^ *[0-9a-f]+ <[^>]*>:/ {
- # Symbol entry
- printf("%s%s\n", $2, $1)
-}
-
-/^ *[0-9a-f]+:/ {
- if (split($0, field, "\t") < 3) {
- # This is a continuation of the same insn.
- prev_hex = prev_hex field[2]
- } else {
- # Skip bad instructions
- if (match(prev_mnemonic, bad_expr))
- prev_addr = ""
- # Split fwait from other f* instructions
- if (match(prev_hex, fwait_expr) && prev_mnemonic != "fwait") {
- printf "%s\t%s\n", prev_addr, fwait_str
- sub(fwait_expr, "", prev_hex)
- }
- if (prev_addr != "")
- printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
- prev_addr = field[1]
- prev_hex = field[2]
- prev_mnemonic = field[3]
- }
-}
-
-END {
- if (prev_addr != "")
- printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
-}
diff --git a/arch/x86/tools/insn_decoder_test.c b/arch/x86/tools/insn_decoder_test.c
index 8be7264cb723..286d2e3b9d57 100644
--- a/arch/x86/tools/insn_decoder_test.c
+++ b/arch/x86/tools/insn_decoder_test.c
@@ -29,7 +29,7 @@
* 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 | ./insn_decoder_test
+ * Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test
*/
const char *prog;
@@ -38,8 +38,8 @@ 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, "Usage: objdump -d a.out | awk -f objdump_reformat.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");
diff --git a/arch/x86/tools/objdump_reformat.awk b/arch/x86/tools/objdump_reformat.awk
new file mode 100644
index 000000000000..f418c91b71f0
--- /dev/null
+++ b/arch/x86/tools/objdump_reformat.awk
@@ -0,0 +1,48 @@
+#!/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
+# Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test
+# Reformats the disassembly as follows:
+# - Removes all lines except the disassembled instructions.
+# - For instructions that exceed 1 line (7 bytes), crams all the hex bytes
+# into a single line.
+# - Remove bad(or prefix only) instructions
+
+BEGIN {
+ prev_addr = ""
+ prev_hex = ""
+ prev_mnemonic = ""
+ bad_expr = "(\\(bad\\)|^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))"
+ fwait_expr = "^9b "
+ fwait_str="9b\tfwait"
+}
+
+/^ *[0-9a-f]+ <[^>]*>:/ {
+ # Symbol entry
+ printf("%s%s\n", $2, $1)
+}
+
+/^ *[0-9a-f]+:/ {
+ if (split($0, field, "\t") < 3) {
+ # This is a continuation of the same insn.
+ prev_hex = prev_hex field[2]
+ } else {
+ # Skip bad instructions
+ if (match(prev_mnemonic, bad_expr))
+ prev_addr = ""
+ # Split fwait from other f* instructions
+ if (match(prev_hex, fwait_expr) && prev_mnemonic != "fwait") {
+ printf "%s\t%s\n", prev_addr, fwait_str
+ sub(fwait_expr, "", prev_hex)
+ }
+ if (prev_addr != "")
+ printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
+ prev_addr = field[1]
+ prev_hex = field[2]
+ prev_mnemonic = field[3]
+ }
+}
+
+END {
+ if (prev_addr != "")
+ printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
+}
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