add ext-toolchain.sh, a utility for external toolchains The ext-toolchain.sh utility script implements various external toolchain tasks: * Testing of available features, like c++, soft-float or ipv6 support * Finding the libc implementation (uclibc or eglibc/glibc) * Inferring the GNU target name * Finding shared objects for packaging (libc, libpthread, ...) * Finding executables for packaging (ldd, gdbserver, ...) * Generating wrapper scripts for toolchain commands
SVN-Revision: 29765
This commit is contained in:
Jo-Philipp Wich
parent
49eb3fd845
commit
7a563f122f
410
scripts/ext-toolchain.sh
Executable file
410
scripts/ext-toolchain.sh
Executable file
@ -0,0 +1,410 @@
|
||||
#!/usr/bin/env bash
|
||||
# Script to copy a toolchain from given source to given
|
||||
# destination directory.
|
||||
|
||||
CC=""
|
||||
CXX=""
|
||||
CPP=""
|
||||
|
||||
CFLAGS=""
|
||||
TOOLCHAIN="."
|
||||
|
||||
LIBC_TYPE=""
|
||||
|
||||
|
||||
# Library specs
|
||||
LIB_SPECS="
|
||||
c: ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
|
||||
rt: librt-* librt
|
||||
pthread: libpthread-* libpthread
|
||||
cpp: libstdc++
|
||||
gcc: libgcc_s
|
||||
ssp: libssp
|
||||
gfortran: libgfortran
|
||||
"
|
||||
|
||||
# Binary specs
|
||||
BIN_SPECS="
|
||||
ldd: ldd
|
||||
ldconfig: ldconfig
|
||||
gdb: gdb
|
||||
gdbserver: gdbserver
|
||||
"
|
||||
|
||||
|
||||
test_c() {
|
||||
cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
|
||||
#include <stdio.h>
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
printf("Hello, world!\n");
|
||||
return 0;
|
||||
}
|
||||
EOT
|
||||
}
|
||||
|
||||
test_cxx() {
|
||||
cat <<-EOT | "${CXX:-false}" $CFLAGS -o /dev/null -x c++ - 2>/dev/null
|
||||
#include <iostream>
|
||||
|
||||
using namespace std;
|
||||
|
||||
int main()
|
||||
{
|
||||
cout << "Hello, world!" << endl;
|
||||
return 0;
|
||||
}
|
||||
EOT
|
||||
}
|
||||
|
||||
test_softfloat() {
|
||||
cat <<-EOT | "$CC" $CFLAGS -msoft-float -o /dev/null -x c - 2>/dev/null
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
double a = 0.1;
|
||||
double b = 0.2;
|
||||
double c = (a + b) / (a * b);
|
||||
return 1;
|
||||
}
|
||||
EOT
|
||||
}
|
||||
|
||||
test_uclibc() {
|
||||
local sysroot="$("$CC" $CFLAGS -print-sysroot 2>/dev/null)"
|
||||
if [ -d "$sysroot" ]; then
|
||||
local lib
|
||||
for lib in "$sysroot"/{lib,usr/lib,usr/local/lib}/ld-uClibc*.so*; do
|
||||
if [ -f "$lib" ] && [ ! -h "$lib" ]; then
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
fi
|
||||
return 1
|
||||
}
|
||||
|
||||
test_feature() {
|
||||
local feature="$1"; shift
|
||||
|
||||
# find compilers, libc type
|
||||
probe_cc
|
||||
probe_cxx
|
||||
probe_libc
|
||||
|
||||
# common toolchain feature tests
|
||||
case "$feature" in
|
||||
c) test_c; return $? ;;
|
||||
c++) test_cxx; return $? ;;
|
||||
soft*) test_softfloat; return $? ;;
|
||||
esac
|
||||
|
||||
# assume eglibc/glibc supports all libc features
|
||||
if [ "$LIBC_TYPE" != "uclibc" ]; then
|
||||
return 0
|
||||
fi
|
||||
|
||||
# uclibc feature tests
|
||||
local inc
|
||||
local sysroot="$("$CC" "$@" -muclibc -print-sysroot 2>/dev/null)"
|
||||
for inc in "include" "usr/include" "usr/local/include"; do
|
||||
local conf="$sysroot/$inc/bits/uClibc_config.h"
|
||||
if [ -f "$conf" ]; then
|
||||
case "$feature" in
|
||||
lfs) grep -q '__UCLIBC_HAS_LFS__ 1' "$conf"; return $?;;
|
||||
ipv6) grep -q '__UCLIBC_HAS_IPV6__ 1' "$conf"; return $?;;
|
||||
rpc) grep -q '__UCLIBC_HAS_RPC__ 1' "$conf"; return $?;;
|
||||
locale) grep -q '__UCLIBC_HAS_LOCALE__ 1' "$conf"; return $?;;
|
||||
wchar) grep -q '__UCLIBC_HAS_WCHAR__ 1' "$conf"; return $?;;
|
||||
threads) grep -q '__UCLIBC_HAS_THREADS__ 1' "$conf"; return $?;;
|
||||
esac
|
||||
fi
|
||||
done
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
find_libs() {
|
||||
local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
|
||||
|
||||
if [ -n "$spec" ] && probe_cpp; then
|
||||
local libdir libdirs
|
||||
for libdir in $(
|
||||
"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
|
||||
sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'
|
||||
); do
|
||||
if [ -d "$libdir" ]; then
|
||||
libdirs="$libdirs $(cd "$libdir"; pwd)/"
|
||||
fi
|
||||
done
|
||||
|
||||
local pattern
|
||||
for pattern in $(eval echo $spec); do
|
||||
find $libdirs -name "$pattern.so*" | sort -u
|
||||
done
|
||||
|
||||
return 0
|
||||
fi
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
find_bins() {
|
||||
local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##p")"
|
||||
|
||||
if [ -n "$spec" ] && probe_cpp; then
|
||||
local sysroot="$("$CPP" -print-sysroot)"
|
||||
|
||||
local bindir bindirs
|
||||
for bindir in $(
|
||||
echo "$sysroot/bin";
|
||||
echo "$sysroot/usr/bin";
|
||||
echo "$sysroot/usr/local/bin";
|
||||
echo "$TOOLCHAIN/bin";
|
||||
echo "$TOOLCHAIN/usr/bin";
|
||||
echo "$TOOLCHAIN/usr/local/bin";
|
||||
"$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
|
||||
sed -ne 's#:# #g; s#^COMPILER_PATH=##p'
|
||||
); do
|
||||
if [ -d "$bindir" ]; then
|
||||
bindirs="$bindirs $(cd "$bindir"; pwd)/"
|
||||
fi
|
||||
done
|
||||
|
||||
local pattern
|
||||
for pattern in $(eval echo $spec); do
|
||||
find $bindirs -name "$pattern" | sort -u
|
||||
done
|
||||
|
||||
return 0
|
||||
fi
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
wrap_bins() {
|
||||
if probe_cc; then
|
||||
mkdir -p "$1" || return 1
|
||||
|
||||
local cmd
|
||||
for cmd in "${CC%-*}-"*; do
|
||||
if [ -x "$cmd" ]; then
|
||||
local out="$1/${cmd##*/}"
|
||||
|
||||
echo '#!/bin/sh' > "$out"
|
||||
case "${cmd##*/}" in
|
||||
*-*cc|*-*cc-*|*-*++|*-*++-*|*-cpp)
|
||||
echo -n 'exec "'"$cmd"'" '"$CFLAGS"' ' >> "$out"
|
||||
echo -n '${STAGING_DIR:+-idirafter ' >> "$out"
|
||||
echo -n '"$STAGING_DIR/usr/include" ' >> "$out"
|
||||
echo -n '-L "$STAGING_DIR/usr/lib" ' >> "$out"
|
||||
echo -n '-Wl,-rpath-link,' >> "$out"
|
||||
echo '"$STAGING_DIR/usr/lib"} "$@"' >> "$out"
|
||||
;;
|
||||
*-ld)
|
||||
echo -n 'exec "'"$cmd"'" ${STAGING_DIR:+' >> "$out"
|
||||
echo -n '-L "$STAGING_DIR/usr/lib" ' >> "$out"
|
||||
echo -n '-rpath-link ' >> "$out"
|
||||
echo '"$STAGING_DIR/usr/lib"} "$@"' >> "$out"
|
||||
;;
|
||||
*)
|
||||
echo "exec '$cmd' \"\$@\"" >> "$out"
|
||||
;;
|
||||
esac
|
||||
chmod +x "$out"
|
||||
fi
|
||||
done
|
||||
|
||||
return 0
|
||||
fi
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
probe_cc() {
|
||||
if [ -z "$CC" ]; then
|
||||
local bin
|
||||
for bin in "bin" "usr/bin" "usr/local/bin"; do
|
||||
local cmd
|
||||
for cmd in "$TOOLCHAIN/$bin/"*-*cc*; do
|
||||
if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
|
||||
CC="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
done
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
probe_cxx() {
|
||||
if [ -z "$CXX" ]; then
|
||||
local bin
|
||||
for bin in "bin" "usr/bin" "usr/local/bin"; do
|
||||
local cmd
|
||||
for cmd in "$TOOLCHAIN/$bin/"*-*++*; do
|
||||
if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
|
||||
CXX="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
done
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
probe_cpp() {
|
||||
if [ -z "$CPP" ]; then
|
||||
local bin
|
||||
for bin in "bin" "usr/bin" "usr/local/bin"; do
|
||||
local cmd
|
||||
for cmd in "$TOOLCHAIN/$bin/"*-cpp*; do
|
||||
if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
|
||||
CPP="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
|
||||
return 0
|
||||
fi
|
||||
done
|
||||
done
|
||||
return 1
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
probe_libc() {
|
||||
if [ -z "$LIBC_TYPE" ]; then
|
||||
if test_uclibc; then
|
||||
LIBC_TYPE="uclibc"
|
||||
else
|
||||
LIBC_TYPE="glibc"
|
||||
fi
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
|
||||
while [ -n "$1" ]; do
|
||||
arg="$1"; shift
|
||||
case "$arg" in
|
||||
-l|--libs)
|
||||
[ -n "$1" ] || {
|
||||
echo "No library given, specify one of:"$(echo "$LIB_SPECS" | sed -ne 's#:.*$##p') >&1
|
||||
exit 1
|
||||
}
|
||||
FINDLIB="$1"; shift
|
||||
;;
|
||||
-b|--bins)
|
||||
[ -n "$1" ] || {
|
||||
echo "No binary given, specify one of:"$(echo "$BIN_SPECS" | sed -ne 's#:.*$##p') >&1
|
||||
exit 1
|
||||
}
|
||||
FINDBIN="$1"; shift
|
||||
;;
|
||||
|
||||
--toolchain)
|
||||
[ -d "$1" ] || {
|
||||
echo "Toolchain directory '$1' does not exist." >&2
|
||||
exit 1
|
||||
}
|
||||
TOOLCHAIN="$(cd "$1"; pwd)"; shift
|
||||
;;
|
||||
|
||||
--cflags)
|
||||
CFLAGS="${CFLAGS:+$CFLAGS }$1"; shift
|
||||
;;
|
||||
|
||||
--print-libc)
|
||||
if probe_cc; then
|
||||
probe_libc
|
||||
echo "$LIBC_TYPE"
|
||||
exit 0
|
||||
fi
|
||||
echo "No C compiler found in '$TOOLCHAIN'." >&2
|
||||
exit 1
|
||||
;;
|
||||
|
||||
--print-target)
|
||||
if probe_cc; then
|
||||
CC="${CC##*/}"
|
||||
echo "${CC%-*}"
|
||||
exit 0
|
||||
fi
|
||||
echo "No C compiler found in '$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 $?
|
||||
;;
|
||||
|
||||
-h|--help)
|
||||
me="$(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 " $me --help" >&2
|
||||
echo -e " Display this help text and exit.\n\n" >&2
|
||||
echo -e " Most commands also take a --cflags parameter which " >&2
|
||||
echo -e " is used to specify C flags to be passed to the " >&2
|
||||
echo -e " cross compiler when performing tests." >&2
|
||||
echo -e " This paremter may be repeated multiple times." >&2
|
||||
exit 1
|
||||
;;
|
||||
|
||||
*)
|
||||
echo "Unknown argument '$arg'" >&2
|
||||
exec $0 --help
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
exit 0
|
||||
Loading…
Reference in New Issue
Block a user