Cannot compile from assembly

[mekb-turtle]

When compiling https://musl.libc.org, I get the following:

/usr/local/bin/lacc -std=c99 -nostdinc -Wa,--noexecstack -D_XOPEN_SOURCE=700 -I./arch/x86_64 -I./arch/generic -Iobj/src/internal -I./src/include -I./src/internal -Iobj/include -I./include  -O2 -pipe -Wno-pointer-to-int-cast -Werror=implicit-function-declaration -Werror=implicit-int -Werror=pointer-sign -Werror=pointer-arith -Werror=int-conversion -Werror=incompatible-pointer-types -Werror=discarded-qualifiers -Werror=discarded-array-qualifiers -Waddress -Warray-bounds -Wchar-subscripts -Wduplicate-decl-specifier -Winit-self -Wreturn-type -Wsequence-point -Wstrict-aliasing -Wunused-function -Wunused-label -Wunused-variable   -DCRT -c -o obj/crt/x86_64/crti.o crt/x86_64/crti.s
/usr/local/bin/lacc -std=c99 -nostdinc -Wa,--noexecstack -D_XOPEN_SOURCE=700 -I./arch/x86_64 -I./arch/generic -Iobj/src/internal -I./src/include -I./src/internal -Iobj/include -I./include  -O2 -pipe -Wno-pointer-to-int-cast -Werror=implicit-function-declaration -Werror=implicit-int -Werror=pointer-sign -Werror=pointer-arith -Werror=int-conversion -Werror=incompatible-pointer-types -Werror=discarded-qualifiers -Werror=discarded-array-qualifiers -Waddress -Warray-bounds -Wchar-subscripts -Wduplicate-decl-specifier -Winit-self -Wreturn-type -Wsequence-point -Wstrict-aliasing -Wunused-function -Wunused-label -Wunused-variable   -DCRT -c -o obj/crt/x86_64/crtn.o crt/x86_64/crtn.s
Unrecognized input file crt/x86_64/crti.s.
Unrecognized input file crt/x86_64/crtn.s.

I tried to compile a simple hello world from C to to assembly and then from assembly to a Linux binary, lacc -S main.c -o main.s, lacc main.s -o main, but it shows this on the second command:

file format not recognized; treating as linker script

I'm not sure if I should report it here or at musl

If you could implement compiling from assembly, that would be appreciated, thanks

[larmel]

Although lacc can understand some inline assembly, it is not a complete assembler, and compiling .s input files is not supported. You should rather use an actual assembler to compile those files.

[rofl0r]

usually the compiler driver automatically invokes the assembler when it detects an assembly file being passed to it. just like it calls the linker when the input is object files.

[mekb-turtle]

Does lacc have it's own linker or does it use the system one? I'm working on a distro which uses lacc and musl, lacc is the first thing that is compiled and it can link binaries somehow.

[larmel]

There is no linker, only a very crude implementation of a driver invoking the system linker (see src/backend/linker.c). I guess it is reasonable to assume that lacc would also know how to invoke the assembler, so I may implement something like that. Otherwise what I would prefer was to actually be able to assemble, so perhaps some time in the future it will work. I will keep this bug open as a reminder :=)

[mekb-turtle]

Is the system linker part of the kernel or part of something else? (side note: lacc doesn't have -dumpmachine so it can't compile itself without manually specifying the machine name e.g x86_64-linux-musl.)