Module: gas-preprocessor
Branch: master
Commit: 5e5f63c03f46dad9dc3c0f91ef18ab293794de06
Author: Janne Grunau <janne-li...@jannau.net>
Committer: Janne Grunau <janne-li...@jannau.net>
Date: Sat Aug 9 15:23:59 2014 +0200
remove all lines starting with '#'
'#' at the start of the line indicates on all archs the start of a
comment or a preprocessor directive. This is after preprocessing so
removing the lines as comment is safe. Line number comments are stripped
by this too since gas-preprocessor.pl ignores line numbers. So it
removes just misleading debug information.
Incidentally fixes gas detection in libav's configure with Xcode on
aarch64. The temporary filename contains two '/'. The filename is added
as line number comment during preprocessing. The comment removal in
gas-preprocessor detects it on aarch64. Clang fails since the line
number comment has an unterminated string constant.
---
gas-preprocessor.pl | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/gas-preprocessor.pl b/gas-preprocessor.pl
index 86293d1..c8f2b1b 100755
--- a/gas-preprocessor.pl
+++ b/gas-preprocessor.pl
@@ -264,13 +264,15 @@ if ($force_thumb) {
# note that the handling of arguments is probably overly permissive vs. gas
# but it should be the same for valid cases
while (<INPUT>) {
+ # remove lines starting with '#', preprocessing is done, '#' at start of
+ # the line indicates a comment for all supported archs (aarch64, arm, ppc
+ # and x86). Also strips line number comments but since they are off anyway
+ # it is no loss.
+ s/^#.*$//;
# remove all comments (to avoid interfering with evaluating directives)
s/(?<!\\)$inputcomm.*//x;
# Strip out windows linefeeds
s/\r$//;
- # Strip out line number comments - armasm can handle them in a separate
- # syntax, but since the line numbers are off they are only misleading.
- s/^#\s+(\d+).*// if $as_type =~ /armasm/;
foreach my $subline (split(";", $_)) {
# Add newlines at the end of lines that don't already have one
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