/*
    * montauk.h
    * GCC target definitions for x86_64-montauk userspace
    * 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 be
    * aligned to the 2 MiB x86-64 default.
*/

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

/* The userspace build convention is -mno-red-zone everywhere; keep it
   as the target default. A later -mred-zone on the command line still
   overrides this. */
#undef CC1_SPEC
#define CC1_SPEC "-mno-red-zone"

#undef LINK_SPEC
#define LINK_SPEC \
    "-m elf_x86_64 -z max-page-size=0x1000 %{shared:-shared} %{!shared:-static}"

/* crt1/crti/crtn come from the Montauk libc (sysroot usr/lib);
   crtbegin/crtend are GCC's. crti/crtn are empty today (the runtime
   does not run global constructors yet) but are kept in the link so
   that enabling them later needs no toolchain change. */
#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"