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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-28 16:52:25 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-28 16:52:25 (GMT) |
commit | e946217e4fdaa67681bbabfa8e6b18641921f750 (patch) | |
tree | 057ad6cb5869e20db7b93f154319560b55cbc725 /scripts | |
parent | a1865769254dd4eefbc1e857d17bc2a77d5f8580 (diff) | |
parent | 60063a66236c15f5613f91390631e06718689782 (diff) | |
download | linux-e946217e4fdaa67681bbabfa8e6b18641921f750.tar.xz |
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
ftrace: fix current_tracer error return
tracing: fix a build error on alpha
ftrace: use a real variable for ftrace_nop in x86
tracing/ftrace: make boot tracer select the sched_switch tracer
tracepoint: check if the probe has been registered
asm-generic: define DIE_OOPS in asm-generic
trace: fix printk warning for u64
ftrace: warning in kernel/trace/ftrace.c
ftrace: fix build failure
ftrace, powerpc, sparc64, x86: remove notrace from arch ftrace file
ftrace: remove ftrace hash
ftrace: remove mcount set
ftrace: remove daemon
ftrace: disable dynamic ftrace for all archs that use daemon
ftrace: add ftrace warn on to disable ftrace
ftrace: only have ftrace_kill atomic
ftrace: use probe_kernel
ftrace: comment arch ftrace code
ftrace: return error on failed modified text.
ftrace: dynamic ftrace process only text section
...
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/Makefile.build | 10 | ||||
-rw-r--r-- | scripts/bootgraph.pl | 19 | ||||
-rwxr-xr-x | scripts/recordmcount.pl | 28 |
3 files changed, 44 insertions, 13 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 5ed4cbf..468fbc9 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -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 diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl index 5e7316e..d2c61ef 100644 --- a/scripts/bootgraph.pl +++ b/scripts/bootgraph.pl @@ -37,7 +37,10 @@ # dmesg | perl scripts/bootgraph.pl > output.svg # -my %start, %end; +use strict; + +my %start; +my %end; my $done = 0; my $maxtime = 0; my $firsttime = 100; @@ -105,18 +108,20 @@ my $threshold = ($maxtime - $firsttime) / 60.0; my $stylecounter = 0; my %rows; my $rowscount = 1; -while (($key,$value) = each %start) { +my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start); +my $key; +foreach $key (@initcalls) { my $duration = $end{$key} - $start{$key}; if ($duration >= $threshold) { - my $s, $s2, $e, $y; - $pid = $pids{$key}; + my ($s, $s2, $e, $w, $y, $y2, $style); + my $pid = $pids{$key}; if (!defined($rows{$pid})) { $rows{$pid} = $rowscount; $rowscount = $rowscount + 1; } - $s = ($value - $firsttime) * $mult; + $s = ($start{$key} - $firsttime) * $mult; $s2 = $s + 6; $e = ($end{$key} - $firsttime) * $mult; $w = $e - $s; @@ -140,9 +145,9 @@ while (($key,$value) = each %start) { my $time = $firsttime; my $step = ($maxtime - $firsttime) / 15; while ($time < $maxtime) { - my $s2 = ($time - $firsttime) * $mult; + my $s3 = ($time - $firsttime) * $mult; my $tm = int($time * 100) / 100.0; - print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n"; + print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n"; $time = $time + $step; } diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index f56d760..6b9fe3e 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -106,7 +106,13 @@ if ($#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; + +# Acceptable sections to record. +my %text_sections = ( + ".text" => 1, +); $objdump = "objdump" if ((length $objdump) == 0); $objcopy = "objcopy" if ((length $objcopy) == 0); @@ -129,8 +135,16 @@ my $function_regex; # Find the name of a function # (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 { + $arch = "i386"; + } +} + if ($arch eq "x86_64") { - $section_regex = "Disassembly of section"; + $section_regex = "Disassembly of section\\s+(\\S+):"; $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:"; $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$"; $type = ".quad"; @@ -142,7 +156,7 @@ if ($arch eq "x86_64") { $cc .= " -m64"; } elsif ($arch eq "i386") { - $section_regex = "Disassembly of section"; + $section_regex = "Disassembly of section\\s+(\\S+):"; $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:"; $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$"; $type = ".long"; @@ -289,7 +303,13 @@ my $text; while (<IN>) { # is it a section? if (/$section_regex/) { - $read_function = 1; + + # Only record text sections that we know are safe + if (defined($text_sections{$1})) { + $read_function = 1; + } else { + $read_function = 0; + } # print out any recorded offsets update_funcs() if ($text_found); |