1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#! /usr/bin/perl 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Generate Valgrind's module dependence graph in 'dot' format. 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# You can run it from anywhere(?) in a Valgrind source tree, but the two 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# most interesting places are: 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# - the root, to get the entire module dependence graph. 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# - coregrind/, to get the core's module dependence graph. 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# It sends a dot-format graph to stdout. You can use dot (part of the 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# "GraphViz" package) to generated a PostScript graphs like this: 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# dot -Tps foo.dot -o foo.ps 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Caveats: 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# - It's not a proper parser. If you have a #include that is commented out, 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# it will think it's there. We see that particularly in m_demangle. 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# - It only looks in C files, not in header files, so it will miss any 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# extra dependencies this causes. Fortunately we don't have many like 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# that. 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownuse warnings; 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownuse strict; 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Global variables 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# The dependence graph is a set of src-->dst pairs, stored in a double-hash: 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# hash(src, hash(dst, dst_realname)) 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Each of 'src' and 'dst' are node names. 'src' is always a module name, 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# eg. 'm_main' or 'memcheck'. The destination is sometimes a module name, 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# and sometimes a header file. Because Dot can't handle certain characters 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# in its node names, when 'dst' represents a header file it's a transformed 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# version of the header file name, eg. 'INT_memcheck_h' or 'EXT_sys_mman_h'. 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# The 'dst_realname' holds the original name, eg. '"memcheck.h"' or 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# "<sys/mman.h>". We use 'dst' for the node name in the graph, but label it 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# with 'dst_realname' and that's what gets seen. (Although we use "" for 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# 'dst_realname' when it would be the same as 'dst'.) 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $deps = {}; 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Directories to skip. These are the defaults, they can be augmented 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# using command-line options. 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy %dirs_to_skip = ( auxprogs => 1, hp2ps => 1, tests => 1 ); 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Command-line variables -- things we should show. Default is yes. 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $show_tools = 1; 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $show_headers = 1; 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $show_libc = 1; 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Modules to hide. 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy %hide; 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# List of all tools. 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy @tools = ( "cachegrind", "helgrind", 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "lackey", "massif", "memcheck", "none" ); 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $usage = <<END 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownusage: gen-mdg [options] 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown options: 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --headers=no|yes show headers, ie. show module-to-module deps only 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --hide=<a>,<b>,... hide module(s) named <a>, <b>, ... 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownEND 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown; 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Subroutines 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub process_cmd_line() 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for my $arg (@ARGV) { 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # --headers=yes|no 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($arg =~ /^--headers=(yes|no)$/) { 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $show_headers = 1 if ($1 eq "yes"); 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $show_headers = 0 if ($1 eq "no"); 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # --hide=<a>,<b>,... 83ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } elsif ($arg =~ /^--hide=(.*)$/) { 84ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my @hiders = split(/,/, $1); 85ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown foreach my $h (@hiders) { 86ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $hide{$h} = 1; 87ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 88ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 89ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 90ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown die $usage; 91ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 92ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 93ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 94ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!$show_tools) { 95ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown foreach my $tool (@tools) { 96ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $dirs_to_skip{$tool} = 1; 97ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 98ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 99ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Convert a header filename into a node name acceptable by dot. 102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub clean_nodename($) 103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my ($s) = @_; 105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/"([^"]+)"/INT_$1/; # "foo.h" --> foo.h 106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/<([^>]+)>/EXT_$1/; # <foo.h> --> foo.h 107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/\./_/g; # foo.h --> foo_h 108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/-/_/g; # foo-bar.h --> foo_bar_h 109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/\//_/g; # bar/foo_h --> bar_foo_h 110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return $s; 111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# Convert a header filename into a node label acceptable by dot. 114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub clean_nodelabel($) 115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my ($s) = @_; 117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $s =~ s/"/\\"/g; # "foo.h" --> \"foo.h\" 118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return $s; 119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# $module is the module to which the C/asm file $f belongs. 122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub scan_C_or_asm_file($$) 123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my ($module, $f) = @_; 125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Skip if this is a module we want to hide 127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($hide{$module}) { 128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return; 129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Get any existing dependencies for this module, initialise if none 132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my $module_deps = $deps->{$module}; 133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (not defined $module_deps) { 134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $module_deps = {}; 135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Scan the C/asm file 138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown open(CFILE, "< $f") || die "File $f not openable\n"; 139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (my $line = <CFILE>) { 140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($line =~ /#include\s+(("|<)[^">]+("|>))/) { 141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Right! We've found a #include line. 142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my $include_string = $1; 143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my $target; 144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my $realname; 145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($include_string =~ /"pub_(core|tool)_([A-Za-z]+).h"/) { 146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # If #include string is "pub_core_foo.h" or "pub_tool_foo.h", 147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # the target module is "m_foo". 148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # 149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Nb: assuming the "foo" part does not contains underscores! 150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $target = "m_$2"; 151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $realname = ""; 152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # But don't show hidden modules 154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($hide{$target}) { 155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $target = ""; 156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } elsif ($show_headers) { 159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Otherwise use the #include string as-is for the target. 160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Note that "#include pub_core_foo_asm.h" falls into this 161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # category. We don't consider that part of the m_foo module 162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # because the *_asm.h only define some constants. 163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $target = clean_nodename($include_string); 164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $realname = clean_nodelabel($include_string); 165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Don't record anything 168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $target = ""; 169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $realname = ""; 170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Maybe record dependency (unless it's circular) 173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($target ne "" and $target ne $module) { 174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $module_deps->{$target} = $realname; 175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown close(CFILE); 179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Store the updated dependencies. 181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $deps->{$module} = $module_deps; 182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub process_dir($); # forward declarations required because of recursion 185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub process_dir($) 186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my ($parentd) = @_; 188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Go through each file/dir in the directory. 190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my @fs = <*>; 191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown foreach my $f (@fs) { 192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (-d $f) { 193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Directory -- recursively process unless we want to skip it. 194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (not exists $dirs_to_skip{$f}) { 195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown chdir $f or die; 196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown process_dir($f); 197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown chdir ".." or die; 198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } elsif (-f $f) { 201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($f =~ /\w+\.[cS]$/) { 202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # If this is a .c/.S file in coregrind/, it's a module in its 203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # own right, eg. coregrind/m_redir.c --> module name of 204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # "m_redir". 205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # 206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Otherwise, it belongs to the module whose name is that of 207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # the parent directory, eg. coregrind/m_debuginfo/symtab.c 208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # --> module name of "m_debuginfo". 209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my $module; 210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($parentd eq "coregrind") { 211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $module = $f; 212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $module =~ s/(\w+).[cS]$/$1/; # foo.c --> foo 213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $module = $parentd; 215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Now the module/f pair is either: 217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # - like this: (m_redir, m_redir.c) 218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # - or like this: (m_debuginfo, symtab.c) 219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown scan_C_or_asm_file($module, $f); 220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown die "$f is not a dir nor a file\n"; 224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownsub print_graph() 229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my %printed_realnames; 231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown print("digraph G {\n"); 233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (my ($src, $dst_hash) = each %$deps) { 234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (my ($dst, $dst_realname) = each %$dst_hash) { 235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # If the dstnode has a realname, print just the dstnode with that 237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # realname, and record it in %printed_realnames so we don't print 238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # it again. 239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ($dst_realname ne "") { 240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (not defined $printed_realnames{$dst}) { 241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown print(" $dst [label=\"$dst_realname\"]\n"); 242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown $printed_realnames{$dst} = 1; 243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown # Print the src-->dst edge. 247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown print(" $src -> $dst\n"); 248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown print("}\n"); 251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# main 255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#---------------------------------------------------------------------------- 256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownprocess_cmd_line(); 257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmy $start_dir = `basename \`pwd\``; 259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownchop($start_dir); # trim newline 260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownprocess_dir($start_dir); 261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownprint_graph(); 263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 265