mirror of
https://github.com/EnderIce2/Fennix.git
synced 2025-07-03 03:19:16 +00:00
refactor(userspace): build using cmake
Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
34
Userspace/libc/runtime/fennix/amd64/CMakeLists.txt
Normal file
34
Userspace/libc/runtime/fennix/amd64/CMakeLists.txt
Normal file
@ -0,0 +1,34 @@
|
||||
cmake_minimum_required(VERSION 3.10)
|
||||
project(FennixRuntime_${TARGET_OS}_${TARGET_ARCH})
|
||||
|
||||
find_program(COMPILER_PATH NAMES $ENV{CC} gcc REQUIRED)
|
||||
|
||||
set(LIB_OUTPUT_DIR "${CMAKE_INSTALL_PREFIX}/lib")
|
||||
file(MAKE_DIRECTORY ${LIB_OUTPUT_DIR})
|
||||
|
||||
add_custom_target(copy_crt_files ALL
|
||||
COMMAND ${COMPILER_PATH} -print-file-name=libgcc.a | xargs cp -t ${LIB_OUTPUT_DIR}
|
||||
COMMAND ${COMPILER_PATH} -print-file-name=crtbegin.o | xargs cp -t ${LIB_OUTPUT_DIR}
|
||||
COMMAND ${COMPILER_PATH} -print-file-name=crtend.o | xargs cp -t ${LIB_OUTPUT_DIR}
|
||||
COMMAND ${COMPILER_PATH} -print-file-name=crti.o | xargs cp -t ${LIB_OUTPUT_DIR}
|
||||
COMMAND ${COMPILER_PATH} -print-file-name=crtn.o | xargs cp -t ${LIB_OUTPUT_DIR}
|
||||
COMMENT "Copying CRT files"
|
||||
)
|
||||
|
||||
file(GLOB CRT_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/*.c")
|
||||
set(OBJECT_FILES "")
|
||||
foreach(source ${CRT_SOURCES})
|
||||
get_filename_component(name ${source} NAME_WE)
|
||||
set(obj "${CMAKE_BINARY_DIR}/${name}.o")
|
||||
add_custom_command(
|
||||
OUTPUT ${obj}
|
||||
COMMAND ${COMPILER_PATH} -c ${source} -o ${obj}
|
||||
DEPENDS ${source}
|
||||
)
|
||||
list(APPEND OBJECT_FILES ${obj})
|
||||
endforeach()
|
||||
|
||||
if(OBJECT_FILES)
|
||||
add_custom_target(crt_objects ALL DEPENDS ${OBJECT_FILES})
|
||||
install(FILES ${OBJECT_FILES} DESTINATION lib)
|
||||
endif()
|
||||
1
Userspace/libc/runtime/fennix/amd64/Scrt1.c
Normal file
1
Userspace/libc/runtime/fennix/amd64/Scrt1.c
Normal file
@ -0,0 +1 @@
|
||||
#include "crt1.c"
|
||||
111
Userspace/libc/runtime/fennix/amd64/crt1.c
Normal file
111
Userspace/libc/runtime/fennix/amd64/crt1.c
Normal file
@ -0,0 +1,111 @@
|
||||
/*
|
||||
This file is part of Fennix Userspace.
|
||||
|
||||
Fennix Userspace is free software: you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License as
|
||||
published by the Free Software Foundation, either version 3 of
|
||||
the License, or (at your option) any later version.
|
||||
|
||||
Fennix Userspace is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Fennix Userspace. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
typedef void (*fct)(void);
|
||||
#define asm __asm__ __volatile__
|
||||
|
||||
extern void (*__preinit_array_start[])(void) __attribute__((weak));
|
||||
extern void (*__preinit_array_end[])(void) __attribute__((weak));
|
||||
extern void (*__init_array_start[])(void) __attribute__((weak));
|
||||
extern void (*__init_array_end[])(void) __attribute__((weak));
|
||||
extern void (*__fini_array_start[])(void) __attribute__((weak));
|
||||
extern void (*__fini_array_end[])(void) __attribute__((weak));
|
||||
|
||||
void __crt_init_array(void)
|
||||
{
|
||||
for (fct *func = __init_array_start; func != __init_array_end; func++)
|
||||
(*func)();
|
||||
}
|
||||
|
||||
void __crt_fini_array(void)
|
||||
{
|
||||
for (fct *func = __fini_array_start; func != __fini_array_end; func++)
|
||||
(*func)();
|
||||
}
|
||||
|
||||
__attribute__((naked, used, no_stack_protector, section(".text"))) void _start()
|
||||
{
|
||||
#if defined(__amd64__)
|
||||
asm("xor %rbp, %rbp\n"
|
||||
"andq $-16, %rsp\n"
|
||||
"movq %rsp, %rbp\n"
|
||||
|
||||
"movq %rdx, %rax\n"
|
||||
"pushq %rcx\n"
|
||||
"pushq %rdx\n"
|
||||
"pushq %rsi\n"
|
||||
"pushq %rdi\n"
|
||||
"movq %rax, %rdi\n"
|
||||
|
||||
"call __libc_init\n"
|
||||
"call __crt_init_array\n"
|
||||
|
||||
"popq %rdi\n"
|
||||
"popq %rsi\n"
|
||||
"popq %rdx\n"
|
||||
"popq %rcx\n"
|
||||
|
||||
"call main\n"
|
||||
|
||||
"pushq %rax\n"
|
||||
"call __crt_fini_array\n"
|
||||
"popq %rax\n"
|
||||
|
||||
"movl %eax, %edi\n"
|
||||
"call _exit\n");
|
||||
#elif defined(__i386__)
|
||||
#warning "i386 _start not implemented"
|
||||
#elif defined(__arm__)
|
||||
#warning "arm _start not implemented"
|
||||
#elif defined(__aarch64__)
|
||||
#warning "aarch64 _start not implemented"
|
||||
#else
|
||||
#error "Unsupported architecture"
|
||||
#endif
|
||||
}
|
||||
|
||||
/* These are declared in GNU ld */
|
||||
enum
|
||||
{
|
||||
NT_FNX_ABI_TAG = 1,
|
||||
NT_FNX_VERSION = 2,
|
||||
NT_FNX_BUILD_ID = 3,
|
||||
NT_FNX_ARCH = 4
|
||||
};
|
||||
|
||||
typedef struct Elf_Nhdr
|
||||
{
|
||||
__UINT32_TYPE__ n_namesz;
|
||||
__UINT32_TYPE__ n_descsz;
|
||||
__UINT32_TYPE__ n_type;
|
||||
char n_name[];
|
||||
} __attribute__((packed)) Elf_Nhdr;
|
||||
|
||||
const struct
|
||||
{
|
||||
Elf_Nhdr header;
|
||||
char name[4];
|
||||
__UINT32_TYPE__ desc[4];
|
||||
} __abi_tag __attribute__((aligned(4), section(".note.ABI-tag"))) = {
|
||||
.header = {
|
||||
.n_namesz = 4, /* "FNX" + '\0' */
|
||||
.n_descsz = sizeof(__UINT32_TYPE__) * 4, /* Description Size */
|
||||
.n_type = NT_FNX_ABI_TAG, /* Type */
|
||||
},
|
||||
.name = "FNX",
|
||||
.desc = {0, 0, 0, 0},
|
||||
};
|
||||
Reference in New Issue
Block a user