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Revert "Kernel/x86: Bake the Prekernel and the Kernel into one image"

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Some hardware/software configurations crash KVM as soon as we try to
start Serenity. The exact cause is currently unknown, so just fully
revert it for now.

This reverts commit 897c4e5145.
This commit is contained in:
Tim Schumacher 2023-04-28 17:27:24 +02:00 • committed by Jelle Raaijmakers
parent a8d08357c9
commit 9ab598af49
10 changed files with 50 additions and 81 deletions
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22
Kernel/Prekernel/CMakeLists.txt
View file

@ -8,21 +8,14 @@ set(SOURCES
)
if ("${SERENITY_ARCH}" STREQUAL "x86_64")
set(PREKERNEL_TARGET kernel_x86-64)
set(PREKERNEL_TARGET Prekernel64)
elseif("${SERENITY_ARCH}" STREQUAL "aarch64")
message(SEND_ERROR "Prekernel is not needed on aarch64 and should not be compiled!")
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static")
add_library(KernelObject OBJECT IMPORTED)
set_property(TARGET KernelObject PROPERTY
IMPORTED_OBJECTS ${CMAKE_CURRENT_BINARY_DIR}/../Kernel.o
)
add_executable(${PREKERNEL_TARGET} ${SOURCES} $<TARGET_OBJECTS:KernelObject>)
add_dependencies(${PREKERNEL_TARGET} Kernel)
add_executable(${PREKERNEL_TARGET} ${SOURCES})
target_compile_options(${PREKERNEL_TARGET} PRIVATE -no-pie -fno-pic -fno-threadsafe-statics)
target_link_options(${PREKERNEL_TARGET} PRIVATE LINKER:-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld -nostdlib LINKER:--no-pie)
@ -34,20 +27,13 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang$")
target_link_libraries(${PREKERNEL_TARGET} PRIVATE clang_rt.builtins)
endif()
if ("${SERENITY_ARCH}" STREQUAL "x86_64")
set(ELF_OBJCOPY_TARGET "elf32-i386")
elseif("${SERENITY_ARCH}" STREQUAL "aarch64")
message(SEND_ERROR "Prekernel is not needed on aarch64 and should not be compiled!")
endif()
add_custom_command(
TARGET ${PREKERNEL_TARGET} POST_BUILD
COMMAND ${CMAKE_OBJCOPY} -O ${ELF_OBJCOPY_TARGET} ${CMAKE_CURRENT_BINARY_DIR}/${PREKERNEL_TARGET} ${CMAKE_CURRENT_BINARY_DIR}/../Kernel
COMMAND ${CMAKE_OBJCOPY} -O elf32-i386 ${CMAKE_CURRENT_BINARY_DIR}/${PREKERNEL_TARGET} ${CMAKE_CURRENT_BINARY_DIR}/Prekernel
BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/Prekernel
)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/../Kernel" DESTINATION boot)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/Prekernel" DESTINATION boot)
# Remove options which the Prekernel environment doesn't support.
get_target_property(PREKERNEL_TARGET_OPTIONS ${PREKERNEL_TARGET} COMPILE_OPTIONS)