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Add some very evil pragmas.

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The evil comment is not just "pragmas are bad, ok?", but switching between
advanced, extended and tradtitional modes when compiling truly is evil and
not guaranteed to work. However, I needed it to make building test cases
easier (it's mostly ok to go from advanced to extended or tradtional, but
going the other way will probably cause all sorts of fun).

In the process, opcode_init now copies the opcode table data rather than
modifying it.
This commit is contained in:
Bill Currie 2012-11-22 20:42:00 +09:00
parent 538879b451
commit eef399209d
6 changed files with 172 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
tools/qfcc/include/Makefile.am
View file

@ -2,6 +2,6 @@ AUTOMAKE_OPTIONS= foreign
EXTRA_DIST= class.h codespace.h cpp.h dags.h debug.h def.h defspace.h \
diagnostic.h dot.h emit.h expr.h flow.h function.h grab.h idstuff.h \
linker.h method.h obj_file.h obj_type.h opcodes.h options.h qfcc.h \
qfprogs.h reloc.h set.h shared.h statements.h strpool.h struct.h \
switch.h symtab.h type.h value.h
linker.h method.h obj_file.h obj_type.h opcodes.h options.h pragma.h \
qfcc.h qfprogs.h reloc.h set.h shared.h statements.h strpool.h \
struct.h switch.h symtab.h type.h value.h

42
tools/qfcc/include/pragma.h Normal file
View file

@ -0,0 +1,42 @@
/*
praga.h
pragma handling
Copyright (C) 2012 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2012/11/22
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef pragma_h
#define pragma_h
/** \defgroup qfcc_pragma pragma handling
\ingroup qfcc
*/
//@{
void pragma (const char *id);
//@}
#endif//pragma_h

4
tools/qfcc/source/Makefile.am
View file

@ -42,8 +42,8 @@ common_src=\
class.c codespace.c constfold.c cpp.c dags.c debug.c def.c defspace.c \
diagnostic.c dot.c dot_dag.c dot_expr.c dot_flow.c dot_sblock.c emit.c \
expr.c flow.c function.c grab.c idstuff.c linker.c method.c obj_file.c \
obj_type.c opcodes.c options.c qfcc.c reloc.c set.c shared.c statements.c \
strpool.c struct.c switch.c symtab.c type.c value.c
obj_type.c opcodes.c options.c pragma.c qfcc.c reloc.c set.c shared.c \
statements.c strpool.c struct.c switch.c symtab.c type.c value.c
qfcc_SOURCES= qc-lex.l qc-parse.y qp-lex.l qp-parse.y $(common_src)
qfcc_LDADD= $(QFCC_LIBS)

37
tools/qfcc/source/opcodes.c
View file

@ -122,33 +122,46 @@ opcode_find (const char *name, operand_t *op_a, operand_t *op_b,
return op;
}
static void
opcode_free (void *_op, void *unused)
{
free (_op);
}
void
opcode_init (void)
{
opcode_t *op;
opcode_t *op, *mop;
if (opcode_type_table) {
Hash_FlushTable (opcode_void_table);
Hash_FlushTable (opcode_type_table);
} else {
PR_Opcode_Init ();
opcode_type_table = Hash_NewTable (1021, 0, 0, 0);
opcode_type_table = Hash_NewTable (1021, 0, opcode_free, 0);
Hash_SetHashCompare (opcode_type_table, get_hash, compare);
opcode_void_table = Hash_NewTable (1021, get_key, 0, 0);
}
for (op = pr_opcodes; op->name; op++) {
if (op->min_version > options.code.progsversion)
continue;
mop = malloc (sizeof (opcode_t));
*mop = *op;
if (options.code.progsversion == PROG_ID_VERSION) {
// v6 progs have no concept of integer, but the QF engine
// treats the operands of certain operands as integers
// irrespective the progs version, so convert the engine's
// view of the operands to the prog's view.
if (op->type_a == ev_integer)
op->type_a = ev_float;
if (op->type_b == ev_integer)
op->type_b = ev_float;
if (op->type_c == ev_integer)
op->type_c = ev_float;
if (mop->type_a == ev_integer)
mop->type_a = ev_float;
if (mop->type_b == ev_integer)
mop->type_b = ev_float;
if (mop->type_c == ev_integer)
mop->type_c = ev_float;
}
Hash_AddElement (opcode_type_table, op);
if (op->type_a == ev_void || op->type_b == ev_void
|| op->type_c == ev_void)
Hash_Add (opcode_void_table, op);
Hash_AddElement (opcode_type_table, mop);
if (mop->type_a == ev_void || mop->type_b == ev_void
|| mop->type_c == ev_void)
Hash_Add (opcode_void_table, mop);
}
}

92
tools/qfcc/source/pragma.c Normal file
View file

@ -0,0 +1,92 @@
/*
praga.c
pragma handling
Copyright (C) 2012 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2012/11/22
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/pr_comp.h"
#include "diagnostic.h"
#include "opcodes.h"
#include "options.h"
#include "pragma.h"
#include "type.h"
static void
set_traditional (int traditional)
{
switch (traditional) {
case 0:
options.traditional = 0;
options.advanced = true;
options.code.progsversion = PROG_VERSION;
type_default = &type_integer;
break;
case 1:
options.traditional = 1;
options.advanced = false;
options.code.progsversion = PROG_ID_VERSION;
type_default = &type_float;
break;
case 2:
options.traditional = 2;
options.advanced = false;
options.code.progsversion = PROG_ID_VERSION;
type_default = &type_float;
break;
}
opcode_init (); // reset the opcode table
}
void
pragma (const char *id)
{
if (!strcmp (id, "traditional")) {
set_traditional (2);
return;
}
if (!strcmp (id, "extended")) {
set_traditional (1);
return;
}
if (!strcmp (id, "advanced")) {
set_traditional (0);
return;
}
warning (0, "unknown pragma: %s", id);
}

7
tools/qfcc/source/qc-lex.l
View file

@ -51,6 +51,7 @@
#include "expr.h"
#include "grab.h"
#include "options.h"
#include "pragma.h"
#include "qfcc.h"
#include "strpool.h"
#include "struct.h"
@ -98,9 +99,10 @@ INT ({D}+|0[xX]{X}+)
RANGE \.\.
ELLIPSIS \.\.\.
FRAMEID {ID}(\.{ID})*
PRAGMAID {ID}(-{ID})*
STRING \"(\\.|[^"\\])*\"
%x GRAB_FRAME GRAB_OTHER COMMENT
%x GRAB_FRAME GRAB_OTHER COMMENT PRAGMA
%%
grab_frame = GRAB_FRAME;
@ -117,7 +119,7 @@ STRING \"(\\.|[^"\\])*\"
^#{s}+{D}+{s}+\"(\.|[^"\n])*\".*$ { line_info (yytext + 1); }
^#line{s}+{D}+{s}+\"(\.|[^"\n])*\".*$ { line_info (yytext + 5); }
^{s}*#{s}*pragma.*$ /* skip */
^{s}*#{s}*pragma{s}+ { BEGIN (PRAGMA); }
{INT}+[uU]? {
const char *c = yytext + yyleng - 1;
@ -234,6 +236,7 @@ STRING \"(\\.|[^"\\])*\"
<GRAB_FRAME>{FRAMEID} add_frame_macro (yytext);
<GRAB_OTHER>[^\r\n]* /* skip */
<PRAGMA>{ID} { pragma (yytext); }
<*>\r*\n {
pr.source_line++;