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# Copyright (C) 2008 Arne Georg Gleditsch <lxr@linux.no>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The full GNU General Public License is included in this distribution
# in the file called COPYING.
package LXRng::Lang::GnuAsm;
use strict;
use Subst::Complex;
use base qw(LXRng::Lang::Generic);
sub doindex {
return 1;
}
sub ctagslangname {
return 'asm';
}
sub ctagsopts {
return ();
}
sub pathexp {
return qr/\.[sS]$/;
}
my $_identifier_re = qr(
(?m:^|(?<=[^a-zA-Z0-9_\#])) # Non-symbol chars.
(_*[a-zA-Z][a-zA-Z0-9_]*) # The symbol.
\b
)x;
sub identifier_re {
return $_identifier_re;
}
my $_reserved ||= { map { $_ => 1 }
(qw(aaa aad aam aas adc bound bsf bsr bswap btc
btr call cbw cwde cdqe cwd cdq cqo clc cld
clflush cmc cmps cmpsb cmpsw cmpsd cmpsq
cmpxchg cmpxchg8b cmpxchg16b cpuid daa das
enter ins insb insw insd int into jcxz jecxz
jrcxz jmp lahf lds les lfs lgs lss leave lfence
lock lods lodsb lodsw lodsd lodsq loop loope
loopne loopnz loopz mfence movd movmskpd
movmskps movnti movs movsb movsw movsd movsq
movsx movsxd movzx nop outs outsb outsw outsd
pause popa popad prefetch prefetchw pusha
pushad pushfd pushfq ret sahf sbb scas scasb
scasw scasd scasq sfence stc std stos stosb
stosw stosd stosq xadd xchg xlat xlatb arpl
clgi cli clts hlt int invd invlpg invlpga iret
iretd iretq lar lgdt lidt lldt lmsw lretq lsl
ltr rep rdmsr rdpmc rdtsc rdtscp rsm sgdt sidt
skinit sldt smsw sti stgi str swapgs syscall
sysenter sysexit sysret ud2 verr verw vmload
vmmcall vmrun vmsave wbinvd wrmsr),
(map { $_, $_.'b', $_.'w', $_.'l', $_.'q' }
qw(add and mov bt bts cmp dec div idiv imul inc
in lea mul neg not or out pop popf push pushf
rcl rcr rol ror sal shl sar shl shr sub test
xor)),
(map { 'cmov'.$_, 'j'.$_, 'set'.$_ }
qw(o no b c nae nb nc ae z e nz ne be na nbe a s
ns p pe np po l nge nl ge le ng nle g))
)};
sub reserved {
return $_reserved;
}
sub parsespec {
return ['atom', '\\\\.', undef,
'atom', '%[a-z][a-z0-9]+', undef, # Registers
'atom', '[.][a-z0-9]+', undef, # Directives
'comment', '/\*', '\*/',
'comment', '//', "\$",
'string', '"(?:[^\\\\]*\\\\.)*[^\\\\]*"', undef,
'string', "'(?:[^\\\\]*\\\\.)*[^\\\\]*'", undef,
'atom', '#\s*(?:ifn?def|define|else|endif|undef)', undef,
'include', '#\s*include\s+"', '"',
'include', '#\s*include\s+<', '>',
'comment', '#', "\$"];
}
sub markuphandlers {
my ($self, $context, $node, $markup) = @_;
my $index = $context->config->{'index'};
my %subst;
my $format_newline = $markup->make_format_newline($node);
$subst{'comment'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]+/ => sub { $markup->format_comment(@_) };
$subst{'string'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]+/ => sub { $markup->format_string(@_) };
$subst{'include'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/(include\s*\")(.*?)(\")/ => sub {
$markup->format_include([$self->resolve_include($context, $node, @_)],
@_) },
qr/(include\s*\<)(.*?)(\>)/ => sub {
$markup->format_include([$self->resolve_include($context, $node, @_)],
@_) };
$subst{'code'} = new Subst::Complex
qr/\n/ => $format_newline,
qr/[^\n]*/ => sub { $markup->format_code($self, @_) };
$subst{'start'} = new Subst::Complex
qr/^/ => $format_newline;
return \%subst;
}
sub resolve_include {
my ($self, $context, $node, $frag) = @_;
if ($frag =~ /include\s+<(.*?)>/) {
return $self->expand_include($context, $node, $1);
}
elsif ($frag =~ /include\s+\"(.*?)\"/) {
my $incl = $1;
my $bare = $1;
my $name = $node->name();
if ($name =~ /(.*\/)/) {
$incl = $1.$incl;
1 while $incl =~ s,/[^/]+/../,/,;
my $file = $context->config->{'repository'}->node($incl, $context->release);
return $incl if $file;
return $self->expand_include($context, $node, $bare);
}
}
return ();
}
1;
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