shithub: libvpx

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Merge "Add .size directive to ARM asm functions."

--- a/build/make/ads2gas.pl

+++ b/build/make/ads2gas.pl

@@ -21,6 +21,9 @@

 print "@  using the ads2gas.pl script.\n";

 print "\t.equ DO1STROUNDING, 0\n";

+# Stack of procedure names.

+@proc_stack = ();

+

 while (<STDIN>)

 {

     # Load and store alignment

@@ -133,9 +136,23 @@

     # Strip PRESERVE8

     s/\sPRESERVE8/@ PRESERVE8/g;

-    # Strip PROC and ENDPROC

-    s/\sPROC/@/g;

-    s/\sENDP/@/g;

+    # Use PROC and ENDP to give the symbols a .size directive.

+    # This makes them show up properly in debugging tools like gdb and valgrind.

+    if (/\bPROC\b/)

+    {

+        my $proc;

+        /^_([\.0-9A-Z_a-z]\w+)\b/;

+        $proc = $1;

+        push(@proc_stack, $proc) if ($proc);

+        s/\bPROC\b/@ $&/;

+    }

+    if (/\bENDP\b/)

+    {

+        my $proc;

+        s/\bENDP\b/@ $&/;

+        $proc = pop(@proc_stack);

+        $_ = "\t.size $proc, .-$proc".$_ if ($proc);

+    }

     # EQU directive

     s/(.*)EQU(.*)/.equ $1, $2/;