Hi all, I have a compiler driver issue when using g++. I want to check whether it is a bug. I send '-Wl,--start-group x.o -lc -Wl,--end-group' to g++, but the command collect2 received is '--start-group x.o --end-group' like the following commands: $ riscv32-unknown-elf-g++ test.o -Wl,--start-group x.o -lc -Wl,--end-group -v 2>&1 | grep collect2 /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/collect2 -plugin /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/liblto_plugin.so -plugin-opt=/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccoy0c2c.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgloss -plugin-opt=-pass-through=-lgcc -melf32lriscv /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/../../../../riscv32-unknown-elf/lib/crt0.o /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/crtbegin.o -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0 -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/../../../../riscv32-unknown-elf/lib test.o --start-group x.o --end-group -lstdc++ -lm -lc -lgcc --start-group -lc -lgloss --end-group -lgcc /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/crtend.o Also I don't have the issue when using gcc: $riscv32-unknown-elf-gcc test.o -Wl,--start-group x.o -lc -Wl,--end-group -v 2>&1 | grep collect2 /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/collect2 -plugin /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/liblto_plugin.so -plugin-opt=/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/lto-wrapper -plugin-opt=-fresolution=/tmp/cccekJC0.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgloss -plugin-opt=-pass-through=-lgcc -melf32lriscv /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/../../../../riscv32-unknown-elf/lib/crt0.o /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/crtbegin.o -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0 -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc -L/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/../../../../riscv32-unknown-elf/lib test.o --start-group x.o -lc --end-group -lgcc --start-group -lc -lgloss --end-group -lgcc /home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../lib/gcc/riscv32-unknown-elf/11.0.0/crtend.o My g++ configuration: $riscv32-unknown-elf-g++ -v Using built-in specs. COLLECT_GCC=/home/users1/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/riscv32-unknown-elf-g++ COLLECT_LTO_WRAPPER=/home/users/eddiekuo/upstream_toolchain/riscv32-unknown-elf/bin/../libexec/gcc/riscv32-unknown-elf/11.0.0/lto-wrapper Target: riscv32-unknown-elf Configured with: ../gcc/configure --target=riscv32-unknown-elf --prefix=/home/users1/eddiekuo/upstream_toolchain/riscv32-unknown-elf --enable-languages=c,c++ --disable-multilib --without-headers --disable-shared --disable-threads --disable-libatomic --disable-libmudflap --disable-libssp --with-newlib Thread model: single Supported LTO compression algorithms: zlib gcc version 11.0.0 20210223 (experimental) (GCC) Thanks, Yeting
