133 lines
2.7 KiB
Bash
Executable file
133 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
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# Generate a wrapper for Gilbraltar (G)CC, ld, objcopy and any other binutil
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# Expected argument: the tool to generate
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# Expected environment variables:
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# ARCH: the target architecture (x86_64 or aarch64)
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# TOOL_CFLAGS and TOOL_LDFLAGS: extra flags
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# GILBRALTAR_TOOLCHAIN: the target for the wrapped Gilbraltar toolchain
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# OTHERTOOLPREFIX: the prefix for tools not in the Gilbraltar toolchain
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# TARGET_X: overrides the command for binutil X
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gen_cc() {
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# Note that -nostdlib is not required, as it is injected by Solo5' cc, ld
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CFLAGS="$TOOL_CFLAGS"
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LDFLAGS="$TOOL_LDFLAGS"
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EXTRALIBS=""
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case "$ARCH" in
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aarch64)
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EXTRALIBS="-lgcc"
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;;
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esac
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# Add the -Wno-unused-command-line-argument option for clang, as we always
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# give it compiling options, even if it will be only linking
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# Reuse the test from Solo5 to detect clang
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if "$SOLO5_TOOLCHAIN-cc" -dM -E - </dev/null | grep -Eq '^#define __clang__ 1$'
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then CFLAGS="-Wno-unused-command-line-argument $CFLAGS"
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fi
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cat << EOF
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#!/bin/sh
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# Just like the Solo5 cc, we assume that we are linking, unless we find an
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# argument suggesting we are compiling but we call Solo5' cc regardless
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compiling=
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for arg in "\$@"; do
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case "\$arg" in
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-[cSE])
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compiling="\$arg"
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break
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;;
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esac
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done
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set -- \\
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$CFLAGS \\
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-include _solo5/overrides.h \\
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-D__BSD_VISIBLE=0 \\
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-D__XSI_VISIBLE=0 \\
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"\$@"
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if [ -z "\$compiling" ]; then
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# linking options
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set -- \\
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"\$@" \\
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$LDFLAGS \\
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-Wl,--start-group \\
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-lnolibc \\
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-lopenlibm \\
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$EXTRALIBS \\
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-Wl,--end-group
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fi
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[ -n "\${__V}" ] && set -x
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exec "$SOLO5_TOOLCHAIN-cc" "\$@"
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EOF
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}
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gen_tool() {
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TOOL="$1"
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case "$TOOL" in
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ar)
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TARGET_TOOL="$TARGET_AR"
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;;
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as)
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TARGET_TOOL="$TARGET_AS"
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;;
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ld)
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TARGET_TOOL="$TARGET_LD"
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;;
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nm)
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TARGET_TOOL="$TARGET_NM"
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;;
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objcopy)
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TARGET_TOOL="$TARGET_OBJCOPY"
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;;
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objdump)
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TARGET_TOOL="$TARGET_OBJDUMP"
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;;
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ranlib)
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TARGET_TOOL="$TARGET_RANLIB"
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;;
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readelf)
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TARGET_TOOL="$TARGET_READELF"
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;;
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strip)
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TARGET_TOOL="$TARGET_STRIP"
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;;
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esac
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if test "$TARGET_TOOL" ; then
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TOOL="$TARGET_TOOL"
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elif command -v -- "$SOLO5_TOOLCHAIN-$TOOL" > /dev/null; then
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TOOL="$SOLO5_TOOLCHAIN-$TOOL"
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else
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case "$TOOL" in
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as)
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TOOL="$SOLO5_TOOLCHAIN-cc -c"
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;;
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*)
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if command -v -- "$OTHERTOOLPREFIX$TOOL" > /dev/null; then
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TOOL="$OTHERTOOLPREFIX$TOOL"
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fi
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;;
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esac
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fi
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cat << EOF
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#!/bin/sh
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exec $TOOL "\$@"
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EOF
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}
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case "$1" in
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cc|gcc)
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gen_cc
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;;
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*)
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gen_tool "$1"
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;;
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esac
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