The comment section where gcc puts in ident info can be omitted with -fno-ident and syscall(2) is usually a very thin wrapper[0]. If you follow the musl syscall

The comment section where gcc puts in ident info can be omitted with -fno-ident and syscall(2) is usually a very thin wrapper[0]. If you follow the musl syscall(2) it simply maps errors to errno[1] and uses the fancy count-args-in-macro[2] to call off the respective $arch/syscall_arch.h[3] syscall$n numbered functions. [0] https://git.musl-libc.org/cgit/musl/tree/src/misc/syscall.c https://git.musl-libc.org/cgit/musl/tree/src/misc/syscall.c [1] https://git.musl-libc.org/cgit/musl/tree/src/internal/syscall_ret.c https://git.musl-libc.org/cgit/musl/tree/src/internal/syscal... [2] https://git.musl-libc.org/cgit/musl/tree/src/internal/syscall.h https://git.musl-libc.org/cgit/musl/tree/src/internal/syscal... [3] https://git.musl-libc.org/cgit/musl/tree/arch/x86_64/syscall_arch.h https://git.musl-libc.org/cgit/musl/tree/arch/x86_64/syscall...