added actual code to run
This commit is contained in:
parent
2ccf881b04
commit
2c92af7cb0
14 changed files with 501 additions and 4 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -4,3 +4,4 @@ binutils/
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gawk/
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builddir/
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config.cmake
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config.h
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@ -1,3 +1,4 @@
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CMAKE_MINIMUM_REQUIRED(VERSION 2.8.0)
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INCLUDE(./config.cmake)
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FIND_PACKAGE(PythonInterp 3 REQUIRED)
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ADD_SUBDIRECTORY(kernel)
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12
config.py
12
config.py
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@ -41,3 +41,15 @@ with open("config.cmake", "w") as f:
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f.write('SET('+key+' 1)\n')
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elif val != False:
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f.write('SET('+key+' '+str(val)+')\n')
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with open("config.h", "w") as f:
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for key, val in config.items():
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if val == True:
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f.write("#define "+key+" 1\n")
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elif val == False:
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f.write("#undef "+key+"\n")
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elif isinstance(val, int):
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f.write("#define "+key+" ("+str(val)+")\n")
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else:
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f.write("#define "+key+' "'+val+'"\n')
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@ -1,2 +1,36 @@
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ENABLE_LANGUAGE(C CXX ASM-ATT)
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INCLUDE(arch/$ARCH/$SYSTEM/config.cmake)
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FUNCTION(LOAD_PROFILE ISA PLATFORM)
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# Obtain sources for the ISA
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FILE(GLOB ISA_SRCS arch/${ISA}/*.c arch/${ISA}/*.s arch/${ISA}/*.cpp)
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FILE(GLOB PLATFORM_SRCS arch/${ISA}/${PLATFORM}/*.c arch/${ISA}/${PLATFORM}/*.s arch/${ISA}/${PLATFORM}/*.cpp)
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# Load flags associated with ISA and Profile
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INCLUDE("arch/${ISA}/flags.cmake")
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INCLUDE("arch/${ISA}/${PLATFORM}/flags.cmake")
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# Now export our output variables
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SET(ISA_SRCS ${ISA_SRCS} PARENT_SCOPE)
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SET(PLATFORM_SRCS ${PLATFORM_SRCS} PARENT_SCOPE)
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SET(PLATFORM_LAYOUT "arch/${ISA}/${PLATFORM}/layout.ld" PARENT_SCOPE)
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# And specific flags
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SET(ISA_C_FLAGS ${ISA_C_FLAGS} PARENT_SCOPE)
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SET(ISA_CXX_FLAGS ${ISA_CXX_FLAGS} PARENT_SCOPE)
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SET(ISA_ASM_FLAGS ${ISA_ASM_FLAGS} PARENT_SCOPE)
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SET(PLATFORM_C_FLAGS ${PLATFORM_C_FLAGS} PARENT_SCOPE)
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SET(PLATFORM_CXX_FLAGS ${PLATFORM_CXX_FLAGS} PARENT_SCOPE)
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SET(PLATFORM_ASM_FLAGS ${PLATFORM_ASM_FLAGS} PARENT_SCOPE)
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SET(ISA_LINKER_FLAGS ${ISA_LINKER_FLAGS} PARENT_SCOPE)
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SET(PLATFORM_LINKER_FLAGS ${ISA_LINKER_FLAGS} PARENT_SCOPE)
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ENDFUNCTION(LOAD_PROFILE)
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FILE(GLOB_RECURSE GENERIC_SRCS src/*.c src/*.cpp)
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LOAD_PROFILE(${ARCH} ${SYSTEM})
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ADD_EXECUTABLE(kernel ${PLATFORM_SRCS} ${ISA_SRCS} ${GENERIC_SRCS})
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SET(CMAKE_ASM-ATT_COMPILE_OBJECT
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"<CMAKE_C_COMPILER> -m32 -x assembler-with-cpp -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_ASM_FLAGS} ${PLATFORM_ASM_FLAGS} -c -o <OBJECT> <SOURCE>")
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SET(CMAKE_C_FLAGS "-m32 -w -Werror -Wno-unused -Wno-unused-variable -std=c11 -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_C_FLAGS} ${PLATFORM_C_FLAGS}")
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SET(CMAKE_CXX_FLAGS "-m32 -w -Werror -Wno-unused -Wno-unused-variable -fno-rtti -fno-exceptions -std=gnu++17 -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_CXX_FLAGS} ${PLATFORM_CXX_FLAGS}")
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SET_TARGET_PROPERTIES(kernel PROPERTIES LINK_FLAGS
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"-T ../../kernel/${PLATFORM_LAYOUT} -N ${ISA_LINKER_FLAGS} ${PLATFORM_LINKER_FLAGS} -nostdlib -nodefaultlibs -lgcc -Wl,--gc-sections")
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2
kernel/arch/x86/flags.cmake
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2
kernel/arch/x86/flags.cmake
Normal file
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@ -0,0 +1,2 @@
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SET(ISA_C_FLAGS "-m32 -I../../kernel/arch/x86/include/")
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SET(ISA_CXX_FLAGS "${ISA_C_FLAGS}")
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3
kernel/arch/x86/pc/flags.cmake
Normal file
3
kernel/arch/x86/pc/flags.cmake
Normal file
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@ -0,0 +1,3 @@
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SET(PLATFORM_C_FLAGS "-I../../kernel/arch/x86/pc/include")
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SET(PLATFORM_CXX_FLAGS "${PLATFORM_C_FLAGS}")
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SET(PLATFORM_ASM_FLAGS "${PLATFORM_C_FLAGS}")
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274
kernel/arch/x86/pc/include/multiboot.h
Normal file
274
kernel/arch/x86/pc/include/multiboot.h
Normal file
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@ -0,0 +1,274 @@
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/* multiboot.h - Multiboot header file. */
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/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY
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* DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef MULTIBOOT_HEADER
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#define MULTIBOOT_HEADER 1
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/* How many bytes from the start of the file we search for the header. */
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#define MULTIBOOT_SEARCH 8192
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#define MULTIBOOT_HEADER_ALIGN 4
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/* The magic field should contain this. */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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/* This should be in %eax. */
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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/* Alignment of multiboot modules. */
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#define MULTIBOOT_MOD_ALIGN 0x00001000
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/* Alignment of the multiboot info structure. */
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#define MULTIBOOT_INFO_ALIGN 0x00000004
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/* Flags set in the 'flags' member of the multiboot header. */
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/* Align all boot modules on i386 page (4KB) boundaries. */
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#define MULTIBOOT_PAGE_ALIGN 0x00000001
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/* Must pass memory information to OS. */
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#define MULTIBOOT_MEMORY_INFO 0x00000002
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/* Must pass video information to OS. */
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#define MULTIBOOT_VIDEO_MODE 0x00000004
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/* This flag indicates the use of the address fields in the header. */
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#define MULTIBOOT_AOUT_KLUDGE 0x00010000
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/* Flags to be set in the 'flags' member of the multiboot info structure. */
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/* is there basic lower/upper memory information? */
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#define MULTIBOOT_INFO_MEMORY 0x00000001
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/* is there a boot device set? */
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#define MULTIBOOT_INFO_BOOTDEV 0x00000002
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/* is the command-line defined? */
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#define MULTIBOOT_INFO_CMDLINE 0x00000004
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/* are there modules to do something with? */
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#define MULTIBOOT_INFO_MODS 0x00000008
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/* These next two are mutually exclusive */
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/* is there a symbol table loaded? */
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#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
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/* is there an ELF section header table? */
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#define MULTIBOOT_INFO_ELF_SHDR 0X00000020
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/* is there a full memory map? */
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#define MULTIBOOT_INFO_MEM_MAP 0x00000040
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/* Is there drive info? */
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#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
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/* Is there a config table? */
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#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
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/* Is there a boot loader name? */
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#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
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/* Is there a APM table? */
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#define MULTIBOOT_INFO_APM_TABLE 0x00000400
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/* Is there video information? */
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#define MULTIBOOT_INFO_VBE_INFO 0x00000800
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#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000
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#ifndef ASM_FILE
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typedef unsigned char multiboot_uint8_t;
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typedef unsigned short multiboot_uint16_t;
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typedef unsigned int multiboot_uint32_t;
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typedef unsigned long long multiboot_uint64_t;
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struct multiboot_header
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{
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/* Must be MULTIBOOT_MAGIC - see above. */
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multiboot_uint32_t magic;
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/* Feature flags. */
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multiboot_uint32_t flags;
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/* The above fields plus this one must equal 0 mod 2^32. */
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multiboot_uint32_t checksum;
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/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
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multiboot_uint32_t header_addr;
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multiboot_uint32_t load_addr;
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multiboot_uint32_t load_end_addr;
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multiboot_uint32_t bss_end_addr;
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multiboot_uint32_t entry_addr;
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/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
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multiboot_uint32_t mode_type;
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multiboot_uint32_t width;
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multiboot_uint32_t height;
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multiboot_uint32_t depth;
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};
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/* The symbol table for a.out. */
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struct multiboot_aout_symbol_table
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{
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multiboot_uint32_t tabsize;
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multiboot_uint32_t strsize;
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multiboot_uint32_t addr;
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multiboot_uint32_t reserved;
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};
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typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
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/* The section header table for ELF. */
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struct multiboot_elf_section_header_table
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{
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multiboot_uint32_t num;
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multiboot_uint32_t size;
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multiboot_uint32_t addr;
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multiboot_uint32_t shndx;
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};
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typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
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struct multiboot_info
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{
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/* Multiboot info version number */
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multiboot_uint32_t flags;
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/* Available memory from BIOS */
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multiboot_uint32_t mem_lower;
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multiboot_uint32_t mem_upper;
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/* "root" partition */
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multiboot_uint32_t boot_device;
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/* Kernel command line */
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multiboot_uint32_t cmdline;
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/* Boot-Module list */
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multiboot_uint32_t mods_count;
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multiboot_uint32_t mods_addr;
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union
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{
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multiboot_aout_symbol_table_t aout_sym;
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multiboot_elf_section_header_table_t elf_sec;
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} u;
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/* Memory Mapping buffer */
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multiboot_uint32_t mmap_length;
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multiboot_uint32_t mmap_addr;
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/* Drive Info buffer */
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multiboot_uint32_t drives_length;
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multiboot_uint32_t drives_addr;
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/* ROM configuration table */
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multiboot_uint32_t config_table;
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/* Boot Loader Name */
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multiboot_uint32_t boot_loader_name;
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/* APM table */
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multiboot_uint32_t apm_table;
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/* Video */
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multiboot_uint32_t vbe_control_info;
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multiboot_uint32_t vbe_mode_info;
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multiboot_uint16_t vbe_mode;
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multiboot_uint16_t vbe_interface_seg;
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multiboot_uint16_t vbe_interface_off;
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multiboot_uint16_t vbe_interface_len;
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multiboot_uint64_t framebuffer_addr;
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multiboot_uint32_t framebuffer_pitch;
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multiboot_uint32_t framebuffer_width;
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multiboot_uint32_t framebuffer_height;
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multiboot_uint8_t framebuffer_bpp;
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#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
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#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
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#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
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multiboot_uint8_t framebuffer_type;
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union
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{
|
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struct
|
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{
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multiboot_uint32_t framebuffer_palette_addr;
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multiboot_uint16_t framebuffer_palette_num_colors;
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};
|
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struct
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{
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multiboot_uint8_t framebuffer_red_field_position;
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multiboot_uint8_t framebuffer_red_mask_size;
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multiboot_uint8_t framebuffer_green_field_position;
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multiboot_uint8_t framebuffer_green_mask_size;
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multiboot_uint8_t framebuffer_blue_field_position;
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multiboot_uint8_t framebuffer_blue_mask_size;
|
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};
|
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};
|
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};
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typedef struct multiboot_info multiboot_info_t;
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struct multiboot_color
|
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{
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multiboot_uint8_t red;
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multiboot_uint8_t green;
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multiboot_uint8_t blue;
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};
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struct multiboot_mmap_entry
|
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{
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multiboot_uint32_t size;
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multiboot_uint64_t addr;
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multiboot_uint64_t len;
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#define MULTIBOOT_MEMORY_AVAILABLE 1
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#define MULTIBOOT_MEMORY_RESERVED 2
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#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
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#define MULTIBOOT_MEMORY_NVS 4
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#define MULTIBOOT_MEMORY_BADRAM 5
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multiboot_uint32_t type;
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} GRUB_PACKED;
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typedef struct multiboot_mmap_entry multiboot_memory_map_t;
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struct multiboot_mod_list
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{
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/* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
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multiboot_uint32_t mod_start;
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multiboot_uint32_t mod_end;
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||||
/* Module command line */
|
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multiboot_uint32_t cmdline;
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|
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/* padding to take it to 16 bytes (must be zero) */
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multiboot_uint32_t pad;
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};
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typedef struct multiboot_mod_list multiboot_module_t;
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/* APM BIOS info. */
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struct multiboot_apm_info
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{
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grub_uint16_t version;
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grub_uint16_t cseg;
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grub_uint32_t offset;
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grub_uint16_t cseg_16;
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grub_uint16_t dseg;
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grub_uint16_t flags;
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grub_uint16_t cseg_len;
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grub_uint16_t cseg_16_len;
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||||
grub_uint16_t dseg_len;
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};
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#endif /* ! ASM_FILE */
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#endif /* ! MULTIBOOT_HEADER */
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36
kernel/arch/x86/pc/layout.ld
Normal file
36
kernel/arch/x86/pc/layout.ld
Normal file
|
@ -0,0 +1,36 @@
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ENTRY(_start)
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SECTIONS {
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. = 0x100000;
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kernel_start = .;
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.text : {
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KEEP(*(.text.boot));
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*(.text)
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}
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.data : {
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start_ctors = .;
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KEEP(*(.init_array));
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KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*)));
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KEEP(*(.ctors));
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end_ctors = .;
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start_dtors = .;
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KEEP(*(.fini_array));
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KEEP(*(.fini_array.*));
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KEEP(*(.dtors));
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end_dtors = .;
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start_eh_frame = .;
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KEEP(*(.eh_frame));
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KEEP(*(.eh_frame.*));
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QUAD(0);
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KEEP(*(.gcc_except_table));
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KEEP(*(.gcc_except_table.*));
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*(.data)
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}
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.rodata : {
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*(.rodata)
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}
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.bss : {
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*(.bss)
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*(COMMON)
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}
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kernel_end = .;
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}
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9
kernel/arch/x86/pc/start.c
Normal file
9
kernel/arch/x86/pc/start.c
Normal file
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@ -0,0 +1,9 @@
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void start() {
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const char hw[] = "Hello World!";
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int i;
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char* video = (char*) 0xb8000;
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for (i = 0; hw[i] != '\0'; i++) {
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video[i * 2] = hw[i];
|
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video[i * 2 + 1] = 0x07;
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||||
}
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||||
}
|
116
kernel/arch/x86/pc/start.s
Normal file
116
kernel/arch/x86/pc/start.s
Normal file
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@ -0,0 +1,116 @@
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#define ASM_FILE 1
|
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#include <config.h>
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#include <multiboot.h>
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.section .text.boot
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.global _start
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_start:
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jmp _start2
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.align MULTIBOOT_HEADER_ALIGN
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.int MULTIBOOT_HEADER_MAGIC
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.int 0x0
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.int -(MULTIBOOT_HEADER_MAGIC)
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.align MULTIBOOT_HEADER_ALIGN
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.extern start
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_start2:
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lgdt gdtr
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mov $0x10, %cx
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mov %cx, %ds
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mov %cx, %es
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mov %cx, %fs
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mov %cx, %gs
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mov %cx, %ss
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ljmp $0x08, $_start3
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_start3:
|
||||
mov $kernel_stack, %esp //Initialize Stack
|
||||
push %ebx
|
||||
push %eax //Push arguments to start()
|
||||
#ifdef ENABLE_FPU
|
||||
finit //Enable FPU
|
||||
#endif
|
||||
#ifdef ENABLE_SSE
|
||||
//Check for SSE
|
||||
mov $1, %eax
|
||||
cpuid
|
||||
test $1<<25, %edx
|
||||
jz _noSSE
|
||||
mov %cr0, %eax
|
||||
and $0xFFFB, %ax
|
||||
or $0x2, %ax
|
||||
mov %eax, %cr0
|
||||
mov %cr4, %eax
|
||||
or $3<<9, %ax
|
||||
mov %eax, %cr4
|
||||
_noSSE:
|
||||
#endif
|
||||
call start
|
||||
_stop:
|
||||
cli
|
||||
hlt
|
||||
jmp _stop
|
||||
|
||||
|
||||
.section .data
|
||||
gdtr:
|
||||
.word 9 * 8
|
||||
.int gdt
|
||||
gdt:
|
||||
.quad 0 //NULL
|
||||
//32-bit kernel code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0x9A
|
||||
.byte 0xCF
|
||||
.byte 0x00
|
||||
//32-bit kernel code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0x92
|
||||
.byte 0xCF
|
||||
.byte 00
|
||||
//32-bit user code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0xFA
|
||||
.byte 0xCF
|
||||
.byte 0x00
|
||||
//32-bit user data
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0xF2
|
||||
.byte 0xCF
|
||||
.byte 00
|
||||
//64-bit kernel code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0x9B
|
||||
.byte 0xAF
|
||||
.byte 0x00
|
||||
//64-bit kernel code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0x93
|
||||
.byte 0xCF
|
||||
.byte 00
|
||||
//64-bit user code
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0xFB
|
||||
.byte 0xAF
|
||||
.byte 0x00
|
||||
//64-bit user data
|
||||
.word 0xFFFF
|
||||
.word 0x0000
|
||||
.byte 0x00
|
||||
.byte 0xF3
|
||||
.byte 0xCF
|
||||
.byte 00
|
||||
.section .bss
|
||||
.space 16384
|
||||
kernel_stack:
|
9
readme
Normal file
9
readme
Normal file
|
@ -0,0 +1,9 @@
|
|||
to build mtgos you need the cross compilers, whose makefile is included in cross/
|
||||
|
||||
Quick walkthrough of the steps needed for building:
|
||||
|
||||
1) ./config.py - this will ask you a couple questions needed for building and create a appropriate config.cmake and config.h
|
||||
2) mkdir -pv build; cd build - this will enter a build directory, as an in-dir build is not supported
|
||||
3) cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/<toolchain name here>.cmake ..
|
||||
4) make
|
||||
5) Kernel is in kernel/kernel
|
|
@ -5,7 +5,7 @@ SET(CMAKE_SYSTEM_VERSION 0)
|
|||
SET(CMAKE_C_COMPILER $ENV{HOME}/opt/bin/arm-none-eabi-gcc)
|
||||
#CMAKE_FORCE_CXX_COMPILER($ENV{HOME}/opt/bin/i686-elf-g++ GNU)
|
||||
SET(CMAKE_CXX_COMPILER $ENV{HOME}/opt/bin/arm-none-eabi-g++)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/arm-none-eabi-as)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/arm-none-eabi-gcc)
|
||||
SET(CMAKE_FIND_ROOT_PATH $ENV{HOME}/opt)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
|
||||
|
|
|
@ -5,7 +5,7 @@ SET(CMAKE_SYSTEM_VERSION 0)
|
|||
SET(CMAKE_C_COMPILER $ENV{HOME}/opt/bin/i686-elf-gcc)
|
||||
#CMAKE_FORCE_CXX_COMPILER($ENV{HOME}/opt/bin/i686-elf-g++ GNU)
|
||||
SET(CMAKE_CXX_COMPILER $ENV{HOME}/opt/bin/i686-elf-g++)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/i686-elf-as)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/i686-elf-gcc)
|
||||
SET(CMAKE_FIND_ROOT_PATH $ENV{HOME}/opt)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
|
||||
|
|
|
@ -5,7 +5,7 @@ SET(CMAKE_SYSTEM_VERSION 0)
|
|||
SET(CMAKE_C_COMPILER $ENV{HOME}/opt/bin/x86_64-elf-gcc)
|
||||
#CMAKE_FORCE_CXX_COMPILER($ENV{HOME}/opt/bin/i686-elf-g++ GNU)
|
||||
SET(CMAKE_CXX_COMPILER $ENV{HOME}/opt/bin/x86_64-elf-g++)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/x86_64-elf-as)
|
||||
SET(CMAKE_ASM_COMPILER $ENV{HOME}/opt/bin/x86_64-elf-gcc)
|
||||
SET(CMAKE_FIND_ROOT_PATH $ENV{HOME}/opt)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
|
||||
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
|
||||
|
|
Loading…
Reference in a new issue