lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 21 Oct 2008 09:35:26 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	LKML <linux-kernel@...r.kernel.org>
cc:	Adrian Bunk <bunk@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ravnborg <sam@...nborg.org>, linux-kbuild@...r.kernel.org
Subject: [PATCH] ftrace: handle generic arch calls


The recordmcount script requires that the actual arch is passed in.
This works well when ARCH=i386 or ARCH=x86_64 but does not handle the
case of ARCH=x86.

This patch adds a parameter to the function to pass in the number of
bits of the architecture. So that it can determine if x86 should be
run for x86_64 or i386 archs.

Signed-off-by: Steven Rostedt <srostedt@...hat.com>
---
 scripts/Makefile.build  |   10 ++++++++--
 scripts/recordmcount.pl |   11 ++++++++++-
 2 files changed, 18 insertions(+), 3 deletions(-)

Index: linux-compile.git/scripts/Makefile.build
===================================================================
--- linux-compile.git.orig/scripts/Makefile.build	2008-10-21 09:25:45.000000000 -0400
+++ linux-compile.git/scripts/Makefile.build	2008-10-21 09:26:05.000000000 -0400
@@ -198,10 +198,16 @@ cmd_modversions =							\
 	fi;
 endif
 
+ifdef CONFIG_64BIT
+arch_bits = 64
+else
+arch_bits = 32
+endif
+
 ifdef CONFIG_FTRACE_MCOUNT_RECORD
 cmd_record_mcount = perl $(srctree)/scripts/recordmcount.pl \
-	"$(ARCH)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" "$(NM)" "$(RM)" \
-	"$(MV)" "$(@)";
+	"$(ARCH)" "$(arch_bits)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" \
+	"$(NM)" "$(RM)" "$(MV)" "$(@)";
 endif
 
 define rule_cc_o_c
Index: linux-compile.git/scripts/recordmcount.pl
===================================================================
--- linux-compile.git.orig/scripts/recordmcount.pl	2008-10-21 09:25:45.000000000 -0400
+++ linux-compile.git/scripts/recordmcount.pl	2008-10-21 09:28:36.000000000 -0400
@@ -106,7 +106,8 @@ if ($#ARGV < 6) {
 	exit(1);
 }
 
-my ($arch, $objdump, $objcopy, $cc, $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+my ($arch, $bits, $objdump, $objcopy, $cc,
+    $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
 
 $objdump = "objdump" if ((length $objdump) == 0);
 $objcopy = "objcopy" if ((length $objcopy) == 0);
@@ -129,6 +130,14 @@ my $function_regex;	# Find the name of a
 			#    (return offset and func name)
 my $mcount_regex;	# Find the call site to mcount (return offset)
 
+if ($arch eq "x86") {
+    if ($bits == 64) {
+	$arch = "x86_64";
+    } else {
+	$arch = "xi386";
+    }
+}
+
 if ($arch eq "x86_64") {
     $section_regex = "Disassembly of section";
     $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists