From b768c7bc6398e297945b08dd5315cae472279a3a Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 24 Jan 2012 00:22:27 -0500 Subject: [PATCH 1/1] make gcc wrapper support -shared correctly it was previously attempting to link start files as part of shared objects. this is definitely wrong and depending on the platform and linker could range from just adding extraneous junk to introducing textrels to making linking fail entirely. --- tools/gen-musl-gcc.sh | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/gen-musl-gcc.sh b/tools/gen-musl-gcc.sh index 1ef0550f..edc40846 100644 --- a/tools/gen-musl-gcc.sh +++ b/tools/gen-musl-gcc.sh @@ -29,6 +29,7 @@ for i ; do case "$skip$i" in -I|-L) skip=--- ; continue ;; -[cSE]|-M*) nolink=1 ;; +-shared) nocrt=1 ;; -*) ;; *) havefile=1 ;; esac @@ -37,13 +38,17 @@ done [ "$havefile" ] || nolink=1 +[ "$nolink" ] && nocrt=1 + +[ "$nocrt" ] || set -- "$libc_start" "$libc_crt" "$@" "$libc_end" \ + [ "$nolink" ] || { tmp_specs=$HOME/.specs.tmp.$$ printf '*link_libgcc:\n\n\n' > "$tmp_specs" || exit 1 exec 3<"$tmp_specs" rm -f "$tmp_specs" -set -- -specs=/proc/self/fd/3 "$libc_start" "$libc_crt" "$@" "$libc_end" \ - -Wl,--start-group -lc -lgcc -lgcc_eh -Wl,--end-group \ +set -- -specs=/proc/self/fd/3 "$@" \ + -Wl,--as-needed -Wl,--start-group -lc -lgcc -lgcc_eh -Wl,--end-group \ -Wl,-dynamic-linker,"$ldso_pathname" -Wl,-nostdlib } -- 2.20.1