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Toolchain+Ports: Enable threads for gcc

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This enables POSIX threads for GCC and makes the -pthread
argument available.
This commit is contained in:
Gunnar Beutner 2021-04-18 08:34:26 +02:00 • committed by Andreas Kling
parent 7400e3d8fc
commit 75d41657d5
5 changed files with 101 additions and 19 deletions
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52
Ports/gcc/patches/gcc.patch
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@ -6,7 +6,7 @@ diff -ruN a/config.sub b/config.sub
# Copyright 1992-2019 Free Software Foundation, Inc.
-timestamp='2019-06-30'
+timestamp='2020-05-16'
+timestamp='2021-04-20'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@ -102,7 +102,7 @@ diff -ruN a/gcc/config/arm/serenity-elf.h b/gcc/config/arm/serenity-elf.h
diff -ruN a/gcc/config/serenity.h b/gcc/config/serenity.h
--- a/gcc/config/serenity.h 1970-01-01 02:00:00.000000000 +0200
+++ b/gcc/config/serenity.h 2020-12-12 10:43:35.280270540 +0200
@@ -0,0 +1,41 @@
@@ -0,0 +1,44 @@
+/* Useful if you wish to make target-specific GCC changes. */
+#undef TARGET_SERENITY
+#define TARGET_SERENITY 1
@ -114,7 +114,7 @@ diff -ruN a/gcc/config/serenity.h b/gcc/config/serenity.h
+/* Default arguments you want when running your
+ i686-serenity-gcc/x86_64-serenity-gcc toolchain */
+#undef LIB_SPEC
+#define LIB_SPEC "-lc" /* link against C standard library */
+#define LIB_SPEC "%{pthread:-lpthread} -lc" /* link against C standard library */
+
+/* Files that are linked before user code.
+ The %s tells GCC to look for these files in the library directory. */
@ -134,6 +134,9 @@ diff -ruN a/gcc/config/serenity.h b/gcc/config/serenity.h
+#undef CC1PLUS_SPEC
+#define CC1PLUS_SPEC "-fno-exceptions -ftls-model=initial-exec"
+
+#undef CPP_SPEC
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
+/* Additional predefined macros. */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
@ -144,10 +147,46 @@ diff -ruN a/gcc/config/serenity.h b/gcc/config/serenity.h
+ builtin_assert ("system=unix"); \
+ builtin_assert ("system=posix"); \
+ } while(0);
diff -ruN a/gcc/config/serenity.opt b/gcc/config/serenity.opt
--- a/gcc/config/serenity.opt 1970-01-01 01:00:00.000000000 +0100
+++ b/gcc/config/serenity.opt 2021-04-18 11:59:44.933484216 +0200
@@ -0,0 +1,32 @@
+; SerenityOS options.
+
+; Copyright (C) 2021 Gunnar Beutner <gunnar@beutner.name>
+;
+; This file is part of GCC.
+;
+; GCC 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 3, or (at your option) any later
+; version.
+;
+; GCC 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 GCC; see the file COPYING3. If not see
+; <http://www.gnu.org/licenses/>.
+
+; See the GCC internals manual (options.texi) for a description of
+; this file's format.
+
+; Please try to keep this file in ASCII collating order.
+
+posix
+Driver
+
+pthread
+Driver
+
+; This comment is to ensure we retain the blank line above.
diff -ruN a/gcc/config.gcc b/gcc/config.gcc
--- a/gcc/config.gcc 2020-07-23 09:35:17.316384243 +0300
+++ b/gcc/config.gcc 2020-12-12 10:43:35.280270540 +0200
@@ -675,6 +675,11 @@
@@ -675,6 +675,12 @@
# Common parts for widely ported systems.
case ${target} in
@ -155,11 +194,12 @@ diff -ruN a/gcc/config.gcc b/gcc/config.gcc
+ gas=yes
+ gnu_ld=yes
+ default_use_cxa_atexit=yes
+ extra_options="${extra_options} serenity.opt"
+ ;;
*-*-darwin*)
tmake_file="t-darwin "
tm_file="${tm_file} darwin.h"
@@ -1033,6 +1038,15 @@
@@ -1063,6 +1069,15 @@
esac
case ${target} in
@ -224,7 +264,7 @@ diff -ruN a/libgcc/config.host b/libgcc/config.host
diff -ruN a/libstdc++-v3/configure b/libstdc++-v3/configure
--- a/libstdc++-v3/configure 2020-07-23 09:35:19.188404867 +0300
+++ b/libstdc++-v3/configure 2020-12-12 10:43:35.288270409 +0200
@@ -29846,6 +29846,5986 @@
@@ -29217,6 +29217,5986 @@
# Base decisions on target environment.
case "${host}" in