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Enhance setting write gs base with cmake variable (#3066)

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In linux x86-64, developer can use cmake variable to configure whether
to enable writing linear memory base address to x86 GS register or not:
- `cmake -DWAMR_DISABLE_WRITE_GS_BASE=1`: disabled it
- `cmake -DWAMR_DISABLE_WRITE_GS_BASE=0`: enabled it
- `cmake` without `-DWAMR_DISABLE_WRITE_GS_BASE=1/0`:
        auto-detected by the compiler
This commit is contained in:
Wenyong Huang 2024-01-23 12:21:20 +08:00 committed by GitHub
parent 7f035d4206
commit c8b59588a7
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GPG Key ID: B5690EEEBB952194
1 changed files with 41 additions and 24 deletions
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65
build-scripts/config_common.cmake
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@ -421,32 +421,49 @@ if (WAMR_BUILD_STATIC_PGO EQUAL 1)
add_definitions (-DWASM_ENABLE_STATIC_PGO=1)
message (" AOT static PGO enabled")
endif ()
if (WAMR_DISABLE_WRITE_GS_BASE EQUAL 1)
add_definitions (-DWASM_DISABLE_WRITE_GS_BASE=1)
message (" Write linear memory base addr to x86 GS register disabled")
elseif (WAMR_BUILD_TARGET STREQUAL "X86_64"
AND WAMR_BUILD_PLATFORM STREQUAL "linux")
set (TEST_WRGSBASE_SOURCE "${CMAKE_BINARY_DIR}/test_wrgsbase.c")
file (WRITE "${TEST_WRGSBASE_SOURCE}" "
#include <stdio.h>
#include <stdint.h>
int main() {
uint64_t value;
asm volatile (\"wrgsbase %0\" : : \"r\"(value));
printf(\"WRGSBASE instruction is available.\\n\");
return 0;
}")
# Try to compile and run the test program
try_run (TEST_WRGSBASE_RESULT
TEST_WRGSBASE_COMPILED
${CMAKE_BINARY_DIR}/test_wrgsbase
SOURCES ${TEST_WRGSBASE_SOURCE}
CMAKE_FLAGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
)
#message("${TEST_WRGSBASE_COMPILED}, ${TEST_WRGSBASE_RESULT}")
if (NOT TEST_WRGSBASE_RESULT EQUAL 0)
if (WAMR_BUILD_TARGET STREQUAL "X86_64"
AND WAMR_BUILD_PLATFORM STREQUAL "linux")
if (WAMR_DISABLE_WRITE_GS_BASE EQUAL 1)
# disabled by user
set (DISABLE_WRITE_GS_BASE 1)
elseif (WAMR_DISABLE_WRITE_GS_BASE EQUAL 0)
# enabled by user
set (DISABLE_WRITE_GS_BASE 0)
elseif (CMAKE_CROSSCOMPILING)
# disabled in cross compilation environment
set (DISABLE_WRITE_GS_BASE 1)
else ()
# auto-detected by the compiler
set (TEST_WRGSBASE_SOURCE "${CMAKE_BINARY_DIR}/test_wrgsbase.c")
file (WRITE "${TEST_WRGSBASE_SOURCE}" "
#include <stdio.h>
#include <stdint.h>
int main() {
uint64_t value;
asm volatile (\"wrgsbase %0\" : : \"r\"(value));
printf(\"WRGSBASE instruction is available.\\n\");
return 0;
}")
# Try to compile and run the test program
try_run (TEST_WRGSBASE_RESULT
TEST_WRGSBASE_COMPILED
${CMAKE_BINARY_DIR}/test_wrgsbase
SOURCES ${TEST_WRGSBASE_SOURCE}
CMAKE_FLAGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
)
#message("${TEST_WRGSBASE_COMPILED}, ${TEST_WRGSBASE_RESULT}")
if (TEST_WRGSBASE_RESULT EQUAL 0)
set (DISABLE_WRITE_GS_BASE 0)
else ()
set (DISABLE_WRITE_GS_BASE 1)
endif ()
endif ()
if (DISABLE_WRITE_GS_BASE EQUAL 1)
add_definitions (-DWASM_DISABLE_WRITE_GS_BASE=1)
message (" Write linear memory base addr to x86 GS register disabled")
else ()
add_definitions (-DWASM_DISABLE_WRITE_GS_BASE=0)
message (" Write linear memory base addr to x86 GS register enabled")
endif ()
endif ()
if (WAMR_CONFIGUABLE_BOUNDS_CHECKS EQUAL 1)