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Merge pull request #59 from HarryWeppner/dev

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FreeBSD memory (leak) profiling support
This commit is contained in:
Jason Evans 2014-03-29 16:47:08 -07:00
commit 9480a23005
2 changed files with 31 additions and 4 deletions
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30
bin/pprof
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@ -4197,8 +4197,12 @@ sub FindLibrary {
# For libc libraries, the copy in /usr/lib/debug contains debugging symbols
sub DebuggingLibrary {
my $file = shift;
if ($file =~ m|^/| && -f "/usr/lib/debug$file") {
return "/usr/lib/debug$file";
if ($file =~ m|^/|) {
if (-f "/usr/lib/debug$file") {
return "/usr/lib/debug$file";
} elsif (-f "/usr/lib/debug$file.debug") {
return "/usr/lib/debug$file.debug";
}
}
return undef;
}
@ -4360,6 +4364,19 @@ sub ParseLibraries {
$finish = HexExtend($2);
$offset = $zero_offset;
$lib = $3;
}
# FreeBSD 10.0 virtual memory map /proc/curproc/map as defined in
# function procfs_doprocmap (sys/fs/procfs/procfs_map.c)
#
# Example:
# 0x800600000 0x80061a000 26 0 0xfffff800035a0000 r-x 75 33 0x1004 COW NC vnode /libexec/ld-elf.s
# o.1 NCH -1
elsif ($l =~ /^(0x$h)\s(0x$h)\s\d+\s\d+\s0x$h\sr-x\s\d+\s\d+\s0x\d+\s(COW|NCO)\s(NC|NNC)\svnode\s(\S+\.so(\.\d+)*)/) {
$start = HexExtend($1);
$finish = HexExtend($2);
$offset = $zero_offset;
$lib = FindLibrary($5);
} else {
next;
}
@ -4382,6 +4399,7 @@ sub ParseLibraries {
}
}
if($main::opt_debug) { printf STDERR "$start:$finish ($offset) $lib\n"; }
push(@{$result}, [$lib, $start, $finish, $offset]);
}
@ -4589,6 +4607,12 @@ sub ExtractSymbols {
my $finish = $lib->[2];
my $offset = $lib->[3];
# Use debug library if it exists
my $debug_libname = DebuggingLibrary($libname);
if ($debug_libname) {
$libname = $debug_libname;
}
# Get list of pcs that belong in this library.
my $contained = [];
my ($start_pc_index, $finish_pc_index);
@ -5019,7 +5043,7 @@ sub GetProcedureBoundariesViaNm {
# Tag this routine with the starting address in case the image
# has multiple occurrences of this routine. We use a syntax
# that resembles template paramters that are automatically
# that resembles template parameters that are automatically
# stripped out by ShortFunctionName()
$this_routine .= "<$start_val>";

5
src/prof.c
View File

@ -935,9 +935,12 @@ prof_dump_maps(bool propagate_err)
char filename[PATH_MAX + 1];
cassert(config_prof);
#ifdef __FreeBSD__
malloc_snprintf(filename, sizeof(filename), "/proc/curproc/map");
#else
malloc_snprintf(filename, sizeof(filename), "/proc/%d/maps",
(int)getpid());
#endif
mfd = open(filename, O_RDONLY);
if (mfd != -1) {
ssize_t nread;