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gcc native: initialize newlib (dedicated environment and SIGCHLD management)

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Giacomo Tesio
2019-12-18 18:15:17 +01:00
parent 905f03e6ae
commit 57cedd3786
5 changed files with 80 additions and 22 deletions
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10
cross/patch/gcc.patch
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@@ -1,14 +1,16 @@
diff --git a/src/gcc/gcc/config.gcc b/src/gcc/gcc/config.gcc
index f02ddbd..e5ebfe0 100644
index ddd3b8f..702aa59 100644
--- a/src/gcc/gcc/config.gcc
+++ b/src/gcc/gcc/config.gcc
@@ -862,6 +862,16 @@ case ${target} in
@@ -947,6 +947,18 @@ case ${target} in
tmake_file="$tmake_file vms/t-vmsnative"
fi
;;
+*-*-jehanne*)
+ gas=yes
+ gnu_ld=yes
+ c_target_objs="${c_target_objs} jehanne.o"
+ cxx_target_objs="${cxx_target_objs} jehanne.o"
+ default_use_cxa_atexit=yes
+ case $target in
+ x86_64-*)
@@ -19,12 +21,12 @@ index f02ddbd..e5ebfe0 100644
*-*-vxworks*)
tmake_file=t-vxworks
xm_defines=POSIX
@@ -1347,6 +1357,9 @@ x86_64-*-darwin*)
@@ -1635,6 +1647,9 @@ i[34567]86-*-elfiamcu)
i[34567]86-*-elf*)
tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h"
;;
+x86_64-*-jehanne*)
+ tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h glibc-stdint.h i386/i386elf.h i386/x86-64.h jehanne.h"
+ tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h jehanne.h"
+ ;;
x86_64-*-elf*)
tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h"

31
cross/patch/gcc/gcc/config/jehanne.c Normal file
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@@ -0,0 +1,31 @@
/*
* This file is part of Jehanne.
*
* Copyright (C) 2020 Giacomo Tesio <giacomo@tesio.it>
*
* Jehanne 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, version 2 of the License.
*
* Jehanne 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 Jehanne. If not, see <http://www.gnu.org/licenses/>.
*/
extern "C" {
#include <u.h>
#include <libc.h>
#include <posix.h>
}
void
__application_newlib_init(int argc, char *argv[])
{
sys_rfork(RFFDG | RFREND | RFNOTEG);
libposix_emulate_SIGCHLD();
}

19
cross/patch/gcc/gcc/config/t-jehanne Normal file
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@@ -0,0 +1,19 @@
# This file is part of Jehanne.
#
# Copyright (C) 2020 Giacomo Tesio <giacomo@tesio.it>
#
# Jehanne 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, version 2 of the License.
#
# Jehanne 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 Jehanne. If not, see <http://www.gnu.org/licenses/>.
jehanne.o: $(srcdir)/config/jehanne.c
$(COMPILE) $<
$(POSTCOMPILE)