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Define MAP_KERNEL_START by resolving MODULES_END at cmake time

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Change-Id: Ib88fc045b64c4ad2dad6a4b13cb0372a735a26ab
This commit is contained in:
Balazs Gerofi
2020-04-02 14:53:43 +09:00
committed by Masamichi Takagi
parent 33eef71133
commit 04d17dd3e9
15 changed files with 85 additions and 45 deletions
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43
CMakeLists.txt
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@@ -14,6 +14,19 @@ set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
if(DEFINED SYSCONF_INSTALL_DIR)
set(CMAKE_INSTALL_SYSCONFDIR "${SYSCONF_INSTALL_DIR}")
endif()
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
set(BUILD_TARGET "smp-x86" CACHE STRING "Build target: smp-x86 | smp-arm64")
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
set(BUILD_TARGET "smp-arm64" CACHE STRING "Build target: smp-x86 | smp-arm64")
endif()
if (BUILD_TARGET STREQUAL "smp-x86")
set(ARCH "x86_64")
elseif (BUILD_TARGET STREQUAL "smp-arm64")
set(ARCH "arm64")
endif()
include(GNUInstallDirs)
include(CMakeParseArguments)
include(Kbuild)
@@ -39,15 +52,7 @@ if (ENABLE_LINUX_WORK_IRQ_FOR_IKC)
add_definitions(-DIHK_IKC_USE_LINUX_WORK_IRQ)
endif()
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
set(BUILD_TARGET "smp-x86" CACHE STRING "Build target: smp-x86 | smp-arm64")
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
set(BUILD_TARGET "smp-arm64" CACHE STRING "Build target: smp-x86 | smp-arm64")
endif()
if (BUILD_TARGET STREQUAL "smp-x86")
set(ARCH "x86_64")
elseif (BUILD_TARGET STREQUAL "smp-arm64")
set(ARCH "arm64")
if (BUILD_TARGET STREQUAL "smp-arm64")
foreach(i RANGE 1 120)
add_definitions(-DPOSTK_DEBUG_ARCH_DEP_${i} -DPOSTK_DEBUG_TEMP_FIX_${i})
set(KBUILD_C_FLAGS "${KBUILD_C_FLAGS} -DPOSTK_DEBUG_ARCH_DEP_${i} -DPOSTK_DEBUG_TEMP_FIX_${i}")
@@ -81,6 +86,24 @@ elseif (BUILD_TARGET STREQUAL "smp-arm64")
endif()
set_property(CACHE BUILD_TARGET PROPERTY STRINGS smp-x86 smp-arm64)
# define MAP_KERNEL_START
set(tmpdir ${CMAKE_CURRENT_BINARY_DIR}/tmp.resolve_MODULES_END)
file(REMOVE_RECURSE ${tmpdir})
file(MAKE_DIRECTORY ${tmpdir})
file(WRITE ${tmpdir}/driver.c "#include <linux/module.h>\n")
file(APPEND ${tmpdir}/driver.c "unsigned long MAP_KERNEL_START = MODULES_END - (1UL << 23);\n")
file(WRITE ${tmpdir}/Makefile "obj-m := driver.o\n")
file(APPEND ${tmpdir}/Makefile "all:\n")
file(APPEND ${tmpdir}/Makefile "\tmake ${KBUILD_MAKE_FLAGS_STR} -C ${KERNEL_DIR} M=${tmpdir} modules\n")
execute_process(COMMAND make -C ${tmpdir})
execute_process(COMMAND bash -c "offset=`readelf -S ${tmpdir}/driver.ko | grep .data | sed 's/.* //g'`; echo $((0x$offset))"
OUTPUT_VARIABLE MAP_KERNEL_START_OFFSET OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND bash -c "dd if=${tmpdir}/driver.ko bs=1 skip=${MAP_KERNEL_START_OFFSET} count=8 2>/dev/null | od -tx8 -Ax | head -1 | sed 's|.* |0x|g'"
OUTPUT_VARIABLE MAP_KERNEL_START OUTPUT_STRIP_TRAILING_WHITESPACE)
set(ENABLE_MEMDUMP ON)
option(ENABLE_PERF "Enable perf support" ON)
option(ENABLE_RUSAGE "Enable rusage support" ON)
@@ -155,6 +178,7 @@ add_subdirectory(executer/kernel/mcctrl)
add_subdirectory(executer/user)
add_subdirectory(kernel)
add_subdirectory(tools/mcstat)
add_subdirectory(tools/crash)
configure_file(scripts/mcreboot-smp.sh.in mcreboot.sh @ONLY)
configure_file(scripts/mcstop+release-smp.sh.in mcstop+release.sh @ONLY)
@@ -190,6 +214,7 @@ message("KERNEL_DIR: ${KERNEL_DIR}")
message("SYSTEM_MAP: ${SYSTEM_MAP}")
message("VMLINUX: ${VMLINUX}")
message("KBUILD_C_FLAGS: ${KBUILD_C_FLAGS}")
message("MAP_KERNEL_START: ${MAP_KERNEL_START}")
message("ENABLE_MEMDUMP: ${ENABLE_MEMDUMP}")
message("ENABLE_PERF: ${ENABLE_PERF}")
message("ENABLE_RUSAGE: ${ENABLE_RUSAGE}")