mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-06-13 10:49:13 +02:00
28420cd67b
Some package may needs to enable compatibility option based on the GCC version. Currently the GCC version is set based on the default value and doesn't actually reflect the real value provided by the external toolchain if used. Fix this by correctly detecting the GCC version in the external toolchain and set the correct value in CONFIG_GCC_VERSION. A new option is added in menuconfig to manually set the GCC version if needed. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
641 lines
16 KiB
Bash
Executable File
641 lines
16 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Script for various external toolchain tasks, refer to
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# the --help output for more information.
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#
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# Copyright (C) 2012 Jo-Philipp Wich <jo@mein.io>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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CC=""
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CXX=""
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CPP=""
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CFLAGS=""
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TOOLCHAIN="."
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LIBC_TYPE=""
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GCC_VERSION=""
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# Library specs
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LIB_SPECS="
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c: ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
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rt: librt-* librt
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pthread: libpthread-* libpthread
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stdcpp: libstdc++
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thread_db: libthread-db
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gcc: libgcc_s
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ssp: libssp
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gfortran: libgfortran
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gomp: libgomp
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"
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# Binary specs
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BIN_SPECS="
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ldd: ldd
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ldconfig: ldconfig
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gdb: gdb
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gdbserver: gdbserver
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"
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OVERWRITE_CONFIG=""
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test_c() {
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cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
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#include <stdio.h>
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int main(int argc, char **argv)
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{
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printf("Hello, world!\n");
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return 0;
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}
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EOT
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}
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test_cxx() {
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cat <<-EOT | "${CXX:-false}" $CFLAGS -o /dev/null -x c++ - 2>/dev/null
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#include <iostream>
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using namespace std;
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int main()
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{
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cout << "Hello, world!" << endl;
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return 0;
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}
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EOT
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}
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test_softfloat() {
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cat <<-EOT | "$CC" $CFLAGS -msoft-float -o /dev/null -x c - 2>/dev/null
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int main(int argc, char **argv)
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{
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double a = 0.1;
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double b = 0.2;
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double c = (a + b) / (a * b);
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return 1;
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}
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EOT
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}
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test_uclibc() {
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local sysroot="$("$CC" $CFLAGS -print-sysroot 2>/dev/null)"
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if [ -d "${sysroot:-$TOOLCHAIN}" ]; then
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local lib
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for lib in "${sysroot:-$TOOLCHAIN}"/{lib,usr/lib,usr/local/lib}/ld*-uClibc*.so*; do
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if [ -f "$lib" ] && [ ! -h "$lib" ]; then
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return 0
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fi
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done
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fi
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return 1
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}
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test_feature() {
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local feature="$1"; shift
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# find compilers, libc type
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probe_cc
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probe_cxx
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probe_libc
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# common toolchain feature tests
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case "$feature" in
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c) test_c; return $? ;;
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c++) test_cxx; return $? ;;
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soft*) test_softfloat; return $? ;;
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esac
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# assume eglibc/glibc supports all libc features
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if [ "$LIBC_TYPE" != "uclibc" ]; then
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return 0
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fi
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# uclibc feature tests
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local inc
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local sysroot="$("$CC" "$@" -muclibc -print-sysroot 2>/dev/null)"
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for inc in "include" "usr/include" "usr/local/include"; do
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local conf="${sysroot:-$TOOLCHAIN}/$inc/bits/uClibc_config.h"
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if [ -f "$conf" ]; then
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case "$feature" in
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lfs) grep -q '__UCLIBC_HAS_LFS__ 1' "$conf"; return $?;;
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ipv6) grep -q '__UCLIBC_HAS_IPV6__ 1' "$conf"; return $?;;
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rpc) grep -q '__UCLIBC_HAS_RPC__ 1' "$conf"; return $?;;
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locale) grep -q '__UCLIBC_HAS_LOCALE__ 1' "$conf"; return $?;;
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wchar) grep -q '__UCLIBC_HAS_WCHAR__ 1' "$conf"; return $?;;
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threads) grep -q '__UCLIBC_HAS_THREADS__ 1' "$conf"; return $?;;
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esac
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fi
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done
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return 1
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}
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find_libs() {
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local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
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if [ -n "$spec" ] && probe_cpp; then
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local libdir libdirs
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for libdir in $(
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"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
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sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'
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); do
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if [ -d "$libdir" ]; then
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libdirs="$libdirs $(cd "$libdir"; pwd)/"
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fi
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done
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local pattern
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for pattern in $(eval echo $spec); do
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find $libdirs -name "$pattern.so*" | sort -u
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done
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return 0
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fi
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return 1
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}
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find_bins() {
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local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
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if [ -n "$spec" ] && probe_cpp; then
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local sysroot="$("$CPP" -print-sysroot)"
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local bindir bindirs
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for bindir in $(
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echo "${sysroot:-$TOOLCHAIN}/bin";
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echo "${sysroot:-$TOOLCHAIN}/usr/bin";
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echo "${sysroot:-$TOOLCHAIN}/usr/local/bin";
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"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
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sed -ne 's#:# #g; s#^COMPILER_PATH=##p'
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); do
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if [ -d "$bindir" ]; then
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bindirs="$bindirs $(cd "$bindir"; pwd)/"
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fi
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done
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local pattern
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for pattern in $(eval echo $spec); do
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find $bindirs -name "$pattern" | sort -u
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done
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return 0
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fi
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return 1
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}
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find_gcc_version() {
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if [ -f $TOOLCHAIN/info.mk ]; then
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GCC_VERSION=$(grep GCC_VERSION $TOOLCHAIN/info.mk | sed 's/GCC_VERSION=//')
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return 0
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fi
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echo "Warning! Can't find info.mk, trying to detect with alternative way."
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# Very fragile detection
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GCC_VERSION=$(find $TOOLCHAIN/bin | grep -oE "gcc-[0-9]+\.[0-9]+\.[0-9]+$" | \
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head -1 | sed 's/gcc-//')
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}
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wrap_bin_cc() {
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local out="$1"
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local bin="$2"
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echo '#!/bin/sh' > "$out"
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echo 'for arg in "$@"; do' >> "$out"
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echo ' case "$arg" in -l*|-L*|-shared|-static)' >> "$out"
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echo -n ' exec "'"$bin"'" '"$CFLAGS"' ${STAGING_DIR:+' >> "$out"
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echo -n '-idirafter "$STAGING_DIR/usr/include" ' >> "$out"
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echo -n '-L "$STAGING_DIR/usr/lib" ' >> "$out"
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echo '-Wl,-rpath-link,"$STAGING_DIR/usr/lib"} "$@" ;;' >> "$out"
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echo ' esac' >> "$out"
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echo 'done' >> "$out"
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echo -n 'exec "'"$bin"'" '"$CFLAGS"' ${STAGING_DIR:+' >> "$out"
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echo '-idirafter "$STAGING_DIR/usr/include"} "$@"' >> "$out"
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chmod +x "$out"
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}
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wrap_bin_ld() {
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local out="$1"
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local bin="$2"
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echo '#!/bin/sh' > "$out"
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echo -n 'exec "'"$bin"'" ${STAGING_DIR:+' >> "$out"
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echo -n '-L "$STAGING_DIR/usr/lib" ' >> "$out"
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echo '-rpath-link "$STAGING_DIR/usr/lib"} "$@"' >> "$out"
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chmod +x "$out"
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}
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wrap_bin_other() {
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local out="$1"
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local bin="$2"
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echo '#!/bin/sh' > "$out"
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echo 'exec "'"$bin"'" "$@"' >> "$out"
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chmod +x "$out"
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}
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wrap_bins() {
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if probe_cc; then
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mkdir -p "$1" || return 1
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local cmd
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for cmd in "${CC%-*}-"*; do
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if [ -x "$cmd" ]; then
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local out="$1/${cmd##*/}"
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local bin="$cmd"
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if [ -x "$out" ] && ! grep -q STAGING_DIR "$out"; then
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mv "$out" "$out.bin"
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bin='$(dirname "$0")/'"${out##*/}"'.bin'
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fi
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case "${cmd##*/}" in
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*-*cc|*-*cc-*|*-*++|*-*++-*|*-cpp)
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wrap_bin_cc "$out" "$bin"
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;;
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*-ld)
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wrap_bin_ld "$out" "$bin"
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;;
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*)
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wrap_bin_other "$out" "$bin"
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;;
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esac
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fi
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done
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return 0
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fi
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return 1
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}
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print_config() {
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local mktarget="$1"
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local mksubtarget
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local target="$("$CC" $CFLAGS -dumpmachine)"
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local version="$("$CC" $CFLAGS -dumpversion)"
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local cpuarch="${target%%-*}"
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# get CC; strip version; strip gcc and add - suffix
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local prefix="${CC##*/}"; prefix="${prefix%-$version}"; prefix="${prefix%-*}-"
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local config="${0%/scripts/*}/.config"
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# if no target specified, print choice list and exit
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if [ -z "$mktarget" ]; then
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# prepare metadata
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if [ ! -f "${0%/scripts/*}/tmp/.targetinfo" ]; then
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"${0%/*}/scripts/config/mconf" prepare-tmpinfo
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fi
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local mktargets=$(
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sed -ne "
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/^Target: / { h };
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/^Target-Arch: $cpuarch\$/ { x; s#^Target: ##p }
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" "${0%/scripts/*}/tmp/.targetinfo" | sort -u
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)
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for mktarget in $mktargets; do
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case "$mktarget" in */*)
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mktargets=$(echo "$mktargets" | sed -e "/^${mktarget%/*}\$/d")
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esac
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done
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if [ -n "$mktargets" ]; then
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echo "Available targets:" >&2
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echo $mktargets >&2
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else
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echo -e "Could not find a suitable OpenWrt target for " >&2
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echo -e "CPU architecture '$cpuarch' - you need to " >&2
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echo -e "define one first!" >&2
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fi
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return 1
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fi
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# bail out if there is a .config already
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if [ -f "$config" ]; then
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if [ "$OVERWRITE_CONFIG" == "" ]; then
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echo "There already is a .config file, refusing to overwrite!" >&2
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return 1
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else
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echo "There already is a .config file, trying to overwrite!"
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fi
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fi
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case "$mktarget" in */*)
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mksubtarget="${mktarget#*/}"
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mktarget="${mktarget%/*}"
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;; esac
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if [ ! -f "$config" ]; then
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touch "$config"
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fi
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echo "CONFIG_TARGET_${mktarget}=y" >> "$config"
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if [ -n "$mksubtarget" ]; then
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echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
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fi
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if test_feature "softfloat"; then
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echo "CONFIG_SOFT_FLOAT=y" >> "$config"
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else
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echo "# CONFIG_SOFT_FLOAT is not set" >> "$config"
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fi
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if test_feature "ipv6"; then
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echo "CONFIG_IPV6=y" >> "$config"
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else
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echo "# CONFIG_IPV6 is not set" >> "$config"
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fi
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if test_feature "locale"; then
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echo "CONFIG_BUILD_NLS=y" >> "$config"
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else
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echo "# CONFIG_BUILD_NLS is not set" >> "$config"
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fi
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echo "CONFIG_DEVEL=y" >> "$config"
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echo "CONFIG_EXTERNAL_TOOLCHAIN=y" >> "$config"
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echo "CONFIG_TOOLCHAIN_ROOT=\"$TOOLCHAIN\"" >> "$config"
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echo "CONFIG_TOOLCHAIN_PREFIX=\"$prefix\"" >> "$config"
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echo "CONFIG_TARGET_NAME=\"$target\"" >> "$config"
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if [ -f "$config" ]; then
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sed -i '/CONFIG_EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL/d' "$config"
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sed -i '/CONFIG_EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC/d' "$config"
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fi
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if [ "$LIBC_TYPE" == glibc ]; then
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echo "CONFIG_EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC=y" >> "$config"
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elif [ "$LIBC_TYPE" == musl ]; then
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echo "CONFIG_EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL=y" >> "$config"
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else
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echo "Can't detect LIBC type. Aborting!" >&2
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return 1
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fi
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if [ -n "$GCC_VERSION" ]; then
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echo "CONFIG_EXTERNAL_GCC_VERSION=\"$GCC_VERSION\"" >> "$config"
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else
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echo "Can't detect GCC version. Aborting!" >&2
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return 1
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fi
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local lib
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for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN GOMP; do
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local file
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local spec=""
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local llib="$(echo "$lib" | sed -e 's#.*#\L&#')"
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for file in $(find_libs "$lib"); do
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spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
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done
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if [ -n "$spec" ]; then
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echo "CONFIG_PACKAGE_lib${llib}=y" >> "$config"
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echo "CONFIG_LIB${lib}_FILE_SPEC=\"$spec\"" >> "$config"
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else
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echo "# CONFIG_PACKAGE_lib${llib} is not set" >> "$config"
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fi
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done
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local bin
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for bin in LDD LDCONFIG; do
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local file
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local spec=""
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local lbin="$(echo "$bin" | sed -e 's#.*#\L&#')"
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for file in $(find_bins "$bin"); do
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spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
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done
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if [ -n "$spec" ]; then
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echo "CONFIG_PACKAGE_${lbin}=y" >> "$config"
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echo "CONFIG_${bin}_FILE_SPEC=\"$spec\"" >> "$config"
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else
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echo "# CONFIG_PACKAGE_${lbin} is not set" >> "$config"
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fi
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done
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# inflate
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make -C "${0%/scripts/*}" defconfig
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return 0
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}
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probe_cc() {
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if [ -z "$CC" ]; then
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local bin
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for bin in "bin" "usr/bin" "usr/local/bin"; do
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local cmd
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for cmd in "$TOOLCHAIN/$bin/"*-*cc*; do
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if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
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CC="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
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return 0
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fi
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done
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done
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return 1
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fi
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return 0
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}
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probe_cxx() {
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if [ -z "$CXX" ]; then
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local bin
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for bin in "bin" "usr/bin" "usr/local/bin"; do
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local cmd
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for cmd in "$TOOLCHAIN/$bin/"*-*++*; do
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if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
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CXX="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
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return 0
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fi
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done
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done
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return 1
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fi
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return 0
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}
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probe_cpp() {
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if [ -z "$CPP" ]; then
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local bin
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for bin in "bin" "usr/bin" "usr/local/bin"; do
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local cmd
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for cmd in "$TOOLCHAIN/$bin/"*-cpp*; do
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if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
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CPP="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
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return 0
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fi
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done
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done
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return 1
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fi
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return 0
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}
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probe_libc() {
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if [ -f $TOOLCHAIN/info.mk ]; then
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LIBC_TYPE=$(grep LIBC_TYPE $TOOLCHAIN/info.mk | sed 's/LIBC_TYPE=//')
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return 0
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fi
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echo "Warning! Can't find info.mk, trying to detect with alternative way."
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if [ -z "$LIBC_TYPE" ]; then
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if test_uclibc; then
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LIBC_TYPE="uclibc"
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else
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LIBC_TYPE="glibc"
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fi
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fi
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return 0
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}
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while [ -n "$1" ]; do
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arg="$1"; shift
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case "$arg" in
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--toolchain)
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[ -d "$1" ] || {
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echo "Toolchain directory '$1' does not exist." >&2
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exit 1
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}
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TOOLCHAIN="$(cd "$1"; pwd)"; shift
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;;
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--cflags)
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CFLAGS="${CFLAGS:+$CFLAGS }$1"; shift
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;;
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--print-libc)
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if probe_cc; then
|
|
probe_libc
|
|
echo "$LIBC_TYPE"
|
|
exit 0
|
|
fi
|
|
echo "No C compiler found in '$TOOLCHAIN'." >&2
|
|
exit 1
|
|
;;
|
|
|
|
--print-target)
|
|
if probe_cc; then
|
|
exec "$CC" $CFLAGS -dumpmachine
|
|
fi
|
|
echo "No C compiler found in '$TOOLCHAIN'." >&2
|
|
exit 1
|
|
;;
|
|
|
|
--print-bin)
|
|
if [ -z "$1" ]; then
|
|
echo "Available programs:" >&2
|
|
echo $(echo "$BIN_SPECS" | sed -ne 's#:.*$##p') >&2
|
|
exit 1
|
|
fi
|
|
|
|
find_bins "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-bin
|
|
exit 0
|
|
;;
|
|
|
|
--print-libs)
|
|
if [ -z "$1" ]; then
|
|
echo "Available libraries:" >&2
|
|
echo $(echo "$LIB_SPECS" | sed -ne 's#:.*$##p') >&2
|
|
exit 1
|
|
fi
|
|
|
|
find_libs "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-libs
|
|
exit 0
|
|
;;
|
|
|
|
--test)
|
|
test_feature "$1"
|
|
exit $?
|
|
;;
|
|
|
|
--wrap)
|
|
[ -n "$1" ] || exec "$0" --help
|
|
wrap_bins "$1"
|
|
exit $?
|
|
;;
|
|
|
|
--overwrite-config)
|
|
OVERWRITE_CONFIG=y
|
|
;;
|
|
|
|
--config)
|
|
if probe_cc; then
|
|
probe_libc
|
|
find_gcc_version
|
|
print_config "$1"
|
|
exit $?
|
|
fi
|
|
echo "No C compiler found in '$TOOLCHAIN'." >&2
|
|
exit 1
|
|
;;
|
|
|
|
-h|--help)
|
|
me="$(basename "$0")"
|
|
echo -e "\nUsage:\n" >&2
|
|
echo -e " $me --toolchain {directory} --print-libc" >&2
|
|
echo -e " Print the libc implementation and exit.\n" >&2
|
|
echo -e " $me --toolchain {directory} --print-target" >&2
|
|
echo -e " Print the GNU target name and exit.\n" >&2
|
|
echo -e " $me --toolchain {directory} --print-bin {program}" >&2
|
|
echo -e " Print executables belonging to given program," >&2
|
|
echo -e " omit program argument to get a list of names.\n" >&2
|
|
echo -e " $me --toolchain {directory} --print-libs {library}" >&2
|
|
echo -e " Print shared objects belonging to given library," >&2
|
|
echo -e " omit library argument to get a list of names.\n" >&2
|
|
echo -e " $me --toolchain {directory} --test {feature}" >&2
|
|
echo -e " Test given feature, exit code indicates success." >&2
|
|
echo -e " Possible features are 'c', 'c++', 'softfloat'," >&2
|
|
echo -e " 'lfs', 'rpc', 'ipv6', 'wchar', 'locale' and " >&2
|
|
echo -e " 'threads'.\n" >&2
|
|
echo -e " $me --toolchain {directory} --wrap {directory}" >&2
|
|
echo -e " Create wrapper scripts for C and C++ compiler, " >&2
|
|
echo -e " linker, assembler and other key executables in " >&2
|
|
echo -e " the directory given with --wrap.\n" >&2
|
|
echo -e " $me --toolchain {directory} --config {target}" >&2
|
|
echo -e " Analyze the given toolchain and print a suitable" >&2
|
|
echo -e " .config for the given target. Omit target " >&2
|
|
echo -e " argument to get a list of names.\n" >&2
|
|
echo -e " $me --help" >&2
|
|
echo -e " Display this help text and exit.\n\n" >&2
|
|
echo -e " Most commands also take a --cflags parameter which " >&2
|
|
echo -e " is used to specify C flags to be passed to the " >&2
|
|
echo -e " cross compiler when performing tests." >&2
|
|
echo -e " This parameter may be repeated multiple times." >&2
|
|
echo -e " Use --overwrite-config before --config to overwrite" >&2
|
|
echo -e " an already present config with the required changes.">&2
|
|
exit 1
|
|
;;
|
|
|
|
*)
|
|
echo "Unknown argument '$arg'" >&2
|
|
exec $0 --help
|
|
;;
|
|
esac
|
|
done
|
|
|
|
exec $0 --help
|