aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/recordmcount.pl
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/recordmcount.pl')
-rwxr-xr-xscripts/recordmcount.pl16
1 files changed, 9 insertions, 7 deletions
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 02c80552b078..7265a7dcac4b 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -92,7 +92,7 @@
92# 92#
93# Here are the steps we take: 93# Here are the steps we take:
94# 94#
95# 1) Record all the local symbols by using 'nm' 95# 1) Record all the local and weak symbols by using 'nm'
96# 2) Use objdump to find all the call site offsets and sections for 96# 2) Use objdump to find all the call site offsets and sections for
97# mcount. 97# mcount.
98# 3) Compile the list into its own object. 98# 3) Compile the list into its own object.
@@ -152,7 +152,8 @@ my %weak; # List of weak functions
152my %convert; # List of local functions used that needs conversion 152my %convert; # List of local functions used that needs conversion
153 153
154my $type; 154my $type;
155my $nm_regex; # Find the local functions (return function) 155my $local_regex; # Match a local function (return function)
156my $weak_regex; # Match a weak function (return function)
156my $section_regex; # Find the start of a section 157my $section_regex; # Find the start of a section
157my $function_regex; # Find the name of a function 158my $function_regex; # Find the name of a function
158 # (return offset and func name) 159 # (return offset and func name)
@@ -197,7 +198,8 @@ if ($arch eq "x86") {
197# We base the defaults off of i386, the other archs may 198# We base the defaults off of i386, the other archs may
198# feel free to change them in the below if statements. 199# feel free to change them in the below if statements.
199# 200#
200$nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)"; 201$local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
202$weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
201$section_regex = "Disassembly of section\\s+(\\S+):"; 203$section_regex = "Disassembly of section\\s+(\\S+):";
202$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:"; 204$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
203$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$"; 205$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
@@ -246,7 +248,7 @@ if ($arch eq "x86_64") {
246 $cc .= " -m32"; 248 $cc .= " -m32";
247 249
248} elsif ($arch eq "powerpc") { 250} elsif ($arch eq "powerpc") {
249 $nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)"; 251 $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
250 $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:"; 252 $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:";
251 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$"; 253 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$";
252 254
@@ -322,13 +324,13 @@ check_objcopy();
322 324
323# 325#
324# Step 1: find all the local (static functions) and weak symbols. 326# Step 1: find all the local (static functions) and weak symbols.
325# 't' is local, 'w/W' is weak (we never use a weak function) 327# 't' is local, 'w/W' is weak
326# 328#
327open (IN, "$nm $inputfile|") || die "error running $nm"; 329open (IN, "$nm $inputfile|") || die "error running $nm";
328while (<IN>) { 330while (<IN>) {
329 if (/$nm_regex/) { 331 if (/$local_regex/) {
330 $locals{$1} = 1; 332 $locals{$1} = 1;
331 } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) { 333 } elsif (/$weak_regex/) {
332 $weak{$2} = $1; 334 $weak{$2} = $1;
333 } 335 }
334} 336}