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-rwxr-xr-xscripts/recordmcount.pl48
1 files changed, 38 insertions, 10 deletions
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index eeac71c87c66..0197e2f6b544 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -130,11 +130,13 @@ my %weak; # List of weak functions
130my %convert; # List of local functions used that needs conversion 130my %convert; # List of local functions used that needs conversion
131 131
132my $type; 132my $type;
133my $nm_regex; # Find the local functions (return function)
133my $section_regex; # Find the start of a section 134my $section_regex; # Find the start of a section
134my $function_regex; # Find the name of a function 135my $function_regex; # Find the name of a function
135 # (return offset and func name) 136 # (return offset and func name)
136my $mcount_regex; # Find the call site to mcount (return offset) 137my $mcount_regex; # Find the call site to mcount (return offset)
137my $alignment; # The .align value to use for $mcount_section 138my $alignment; # The .align value to use for $mcount_section
139my $section_type; # Section header plus possible alignment command
138 140
139if ($arch eq "x86") { 141if ($arch eq "x86") {
140 if ($bits == 64) { 142 if ($bits == 64) {
@@ -144,9 +146,18 @@ if ($arch eq "x86") {
144 } 146 }
145} 147}
146 148
149#
150# We base the defaults off of i386, the other archs may
151# feel free to change them in the below if statements.
152#
153$nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
154$section_regex = "Disassembly of section\\s+(\\S+):";
155$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
156$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
157$section_type = '@progbits';
158$type = ".long";
159
147if ($arch eq "x86_64") { 160if ($arch eq "x86_64") {
148 $section_regex = "Disassembly of section\\s+(\\S+):";
149 $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
150 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$"; 161 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$";
151 $type = ".quad"; 162 $type = ".quad";
152 $alignment = 8; 163 $alignment = 8;
@@ -158,10 +169,6 @@ if ($arch eq "x86_64") {
158 $cc .= " -m64"; 169 $cc .= " -m64";
159 170
160} elsif ($arch eq "i386") { 171} elsif ($arch eq "i386") {
161 $section_regex = "Disassembly of section\\s+(\\S+):";
162 $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
163 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
164 $type = ".long";
165 $alignment = 4; 172 $alignment = 4;
166 173
167 # force flags for this arch 174 # force flags for this arch
@@ -170,6 +177,27 @@ if ($arch eq "x86_64") {
170 $objcopy .= " -O elf32-i386"; 177 $objcopy .= " -O elf32-i386";
171 $cc .= " -m32"; 178 $cc .= " -m32";
172 179
180} elsif ($arch eq "sh") {
181 $alignment = 2;
182
183 # force flags for this arch
184 $ld .= " -m shlelf_linux";
185 $objcopy .= " -O elf32-sh-linux";
186 $cc .= " -m32";
187
188} elsif ($arch eq "powerpc") {
189 $nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
190 $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:";
191 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$";
192
193 if ($bits == 64) {
194 $type = ".quad";
195 }
196
197} elsif ($arch eq "arm") {
198 $alignment = 2;
199 $section_type = '%progbits';
200
173} else { 201} else {
174 die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD"; 202 die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
175} 203}
@@ -239,7 +267,7 @@ if (!$found_version) {
239# 267#
240open (IN, "$nm $inputfile|") || die "error running $nm"; 268open (IN, "$nm $inputfile|") || die "error running $nm";
241while (<IN>) { 269while (<IN>) {
242 if (/^[0-9a-fA-F]+\s+t\s+(\S+)/) { 270 if (/$nm_regex/) {
243 $locals{$1} = 1; 271 $locals{$1} = 1;
244 } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) { 272 } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) {
245 $weak{$2} = $1; 273 $weak{$2} = $1;
@@ -290,8 +318,8 @@ sub update_funcs
290 if (!$opened) { 318 if (!$opened) {
291 open(FILE, ">$mcount_s") || die "can't create $mcount_s\n"; 319 open(FILE, ">$mcount_s") || die "can't create $mcount_s\n";
292 $opened = 1; 320 $opened = 1;
293 print FILE "\t.section $mcount_section,\"a\",\@progbits\n"; 321 print FILE "\t.section $mcount_section,\"a\",$section_type\n";
294 print FILE "\t.align $alignment\n"; 322 print FILE "\t.align $alignment\n" if (defined($alignment));
295 } 323 }
296 printf FILE "\t%s %s + %d\n", $type, $ref_func, $offsets[$i] - $offset; 324 printf FILE "\t%s %s + %d\n", $type, $ref_func, $offsets[$i] - $offset;
297 } 325 }