/*
    * aarch64-montauk.h
    * GCC target definitions for aarch64-montauk userspace
    * (installed as gcc/config/aarch64/montauk.h)
    * Copyright (c) 2026 Daniel Hammer
    *
    * Programs are static, non-PIE ET_EXEC images loaded by the kernel
    * ELF loader (kernel/src/Sched/ElfLoader.cpp) at their linked
    * address. The loader maps 4 KiB pages, so segments must not use
    * the 64 KiB AArch64 default alignment.
*/

#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS()            \
    do {                                    \
        builtin_define("__montauk__");      \
        builtin_define("__MONTAUK__");      \
        builtin_assert("system=montauk");   \
    } while (0)

/* Inline LL/SC atomics: outline atomics pick LSE at run time from HWCAP,
   which Montauk does not provide, and their helpers live in libgcc, which
   -nostdlib programs never link.
   Signed plain char, as on x86_64-montauk: the userspace is shared between
   the architectures and its CP1252 text handling assumes it.
   -moutline-atomics / -funsigned-char still override. */
#undef CC1_SPEC
#define CC1_SPEC "%{!moutline-atomics:-mno-outline-atomics} %{!funsigned-char:-fsigned-char}"

#undef LINK_SPEC
#define LINK_SPEC \
    "-maarch64elf -X -z max-page-size=0x1000 %{shared:-shared} %{!shared:-static}"

/* As on x86_64-montauk: crt1/crti/crtn from the Montauk libc,
   crtbegin/crtend from libgcc. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "crt1.o%s crti.o%s crtbegin.o%s"

#undef ENDFILE_SPEC
#define ENDFILE_SPEC "crtend.o%s crtn.o%s"

#undef LIB_SPEC
#define LIB_SPEC "-lc"