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Import lang/cparser, a C99 parser and frontend for libFirm.

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ok bentley@

cparser is a recursive descent C99 parser written in C99. It contains a
preprocessor, lexer, parser, constructs an AST and does semantic
analysis. It acts as a frontend to the libFirm intermediate
representation library. This way optimization and code generation is
performed. The compiler supports cross compilation to multiple target
architectures with a command-line switch. It comes with driver logic for
calling assemblers and linkers as well as parsing command-line options.
This allows it to be a drop-in replacement for gcc or clang in many
situations.
This commit is contained in:
bcallah 2017-11-06 01:21:07 +00:00
parent 24c9106815
commit 2c88f33758
8 changed files with 143 additions and 0 deletions
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36
lang/cparser/Makefile Normal file
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@ -0,0 +1,36 @@
# $OpenBSD: Makefile,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
# Depends on devel/libfirm
ONLY_FOR_ARCHS = amd64 arm i386
# Must keep version number in sync with devel/libfirm
COMMENT = C99 parser and frontend for libFirm
DISTNAME = cparser-1.22.1
CATEGORIES = lang
# amd64 PIC *just* missed 1.22.0; this goes away next update
GH_ACCOUNT = libfirm
GH_PROJECT = cparser
GH_COMMIT = 1930dff97172e8199c0d6f452f59dee47569d594
HOMEPAGE = https://pp.ipd.kit.edu/firm/
MAINTAINER = Brian Callahan <bcallah@openbsd.org>
# GPLv2+
PERMIT_PACKAGE_CDROM = Yes
WANTLIB += c firm m
# Uncomment next update
# MASTER_SITES = https://github.com/libfirm/cparser/archive/
MODULES = devel/cmake
LIB_DEPENDS = devel/libfirm
NO_TEST = Yes
# GitHub has silly naming practices. Uncomment next update.
# WRKDIST = ${WRKDIR}/cparser-${DISTNAME}
.include <bsd.port.mk>

2
lang/cparser/distinfo Normal file
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SHA256 (cparser-1.22.1-1930dff9.tar.gz) = Q4Qul3xeLp96daMOxjoUeGRqacclBNJBlMn1SDmOTKI=
SIZE (cparser-1.22.1-1930dff9.tar.gz) = 289387

14
lang/cparser/patches/patch-CMakeLists_txt Normal file
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$OpenBSD: patch-CMakeLists_txt,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
Install manual page correctly.
Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -118,5 +118,5 @@ set(INSTALL_HEADERS
include/stddef.h
)
install(FILES ${INSTALL_HEADERS} DESTINATION ${COMPILER_INCLUDE_DIR})
-install(FILES cparser.1 DESTINATION share/man/man1)
+install(FILES cparser.1 DESTINATION man/man1)
install(TARGETS cparser DESTINATION bin)

25
lang/cparser/patches/patch-src_driver_predefs_c Normal file
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$OpenBSD: patch-src_driver_predefs_c,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
cparser doesn't understand __attribute__((__gnu_inline__)).
This causes all sorts of multiple definition linker errors.
So let's set the GCC compatibility to too old for it.
Also doesn't understand _Pragma.
Let's say we're GCC 3.4.6 (for now) because of all this.
Index: src/driver/predefs.c
--- src/driver/predefs.c.orig
+++ src/driver/predefs.c
@@ -245,9 +245,9 @@ void add_predefined_macros(void)
add_define("__CPARSER_PATCHLEVEL__", CPARSER_PATCHLEVEL, false);
/* let's pretend we are a GCC compiler */
- add_define("__GNUC__", "4", false);
- add_define("__GNUC_MINOR__", "6", false);
- add_define("__GNUC_PATCHLEVEL__", "0", false);
+ add_define("__GNUC__", "3", false);
+ add_define("__GNUC_MINOR__", "4", false);
+ add_define("__GNUC_PATCHLEVEL__", "6", false);
if (dialect.cpp)
add_define("__GNUG__", "4", false);

27
lang/cparser/patches/patch-src_driver_target_c Normal file
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$OpenBSD: patch-src_driver_target_c,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
Add OpenBSD and set it up properly.
Index: src/driver/target.c
--- src/driver/target.c.orig
+++ src/driver/target.c
@@ -288,6 +288,10 @@ static void set_options_for_machine(machine_triple_t c
} else if (strstr(os, "bsd") != NULL) {
init_generic_elf();
init_unix();
+#if defined(__OpenBSD__)
+ target.pic_mode = 1;
+ ppdef( "__OpenBSD__", "1");
+#endif
} else if (streq(os, "elf") || streq(os, "octopos") || streq(os, "irtss")) {
init_generic_elf();
} else if (strstart(os, "darwin")) {
@@ -514,6 +518,8 @@ static machine_triple_t *get_host_machine_triple(void)
machine->operating_system = xstrdup("linux-gnu");
#elif defined(__linux__)
machine->operating_system = xstrdup("linux");
+#elif defined(__OpenBSD__)
+ machine->operating_system = xstrdup("bsd");
#elif defined(__midipix__)
machine->operating_system = xstrdup("midipix");
#elif defined(__ELF__)

18
lang/cparser/patches/patch-src_driver_warning_h Normal file
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$OpenBSD: patch-src_driver_warning_h,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
Turn off -Wexperimental by default.
The entire amd64 backend is considered experimental.
We don't need a -Wexperimental warning for every single file compiled on amd64.
Index: src/driver/warning.h
--- src/driver/warning.h.orig
+++ src/driver/warning.h
@@ -34,7 +34,7 @@ void print_warning_opt_help(void);
M(WARN_ENDIF_LABELS, ON, "endif-labels", "Warn whenever an '#else' or an '#endif' are followed by text") \
M(WARN_ENUM_CONVERSION, ON, "enum-conversion", "warn about implicit conversion between different enum types") \
M(WARN_ERROR, OFF, "error", "Treat warnings as errors") \
- M(WARN_EXPERIMENTAL, ON, "experimental", "Warn if experimental/unstable compiler features are used") \
+ M(WARN_EXPERIMENTAL, OFF, "experimental", "Warn if experimental/unstable compiler features are used") \
M(WARN_FATAL_ERRORS, OFF, "fatal-errors", "First error stops the compilation") \
M(WARN_FLOAT_EQUAL, OFF, "float-equal", "Warn if floating point values are used in equality comparisons") \
M(WARN_FORMAT, ON, "format", "Check printf-style format strings") \

9
lang/cparser/pkg/DESCR Normal file
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cparser is a recursive descent C99 parser written in C99. It contains a
preprocessor, lexer, parser, constructs an AST and does semantic
analysis. It acts as a frontend to the libFirm intermediate
representation library. This way optimization and code generation is
performed. The compiler supports cross compilation to multiple target
architectures with a command-line switch. It comes with driver logic for
calling assemblers and linkers as well as parsing command-line options.
This allows it to be a drop-in replacement for gcc or clang in many
situations.

12
lang/cparser/pkg/PLIST Normal file
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@comment $OpenBSD: PLIST,v 1.1.1.1 2017/11/06 01:21:07 bcallah Exp $
@bin bin/cparser
lib/cparser/
lib/cparser/1.22.1/
lib/cparser/1.22.1/include/
lib/cparser/1.22.1/include/float.h
lib/cparser/1.22.1/include/iso646.h
lib/cparser/1.22.1/include/limits.h
lib/cparser/1.22.1/include/stdarg.h
lib/cparser/1.22.1/include/stdbool.h
lib/cparser/1.22.1/include/stddef.h
@man man/man1/cparser.1