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Allow using mmap for shared memory if hw bound check is disabled (#3029)

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For shared memory, the max memory size must be defined in advanced. Re-allocation
for growing memory can't be used as it might change the base address, therefore when
OS_ENABLE_HW_BOUND_CHECK is enabled the memory is mmaped, and if the flag is
disabled, the memory is allocated. This change introduces a flag that allows users to use
mmap for reserving memory address space even if the OS_ENABLE_HW_BOUND_CHECK
is disabled.
This commit is contained in:
Marcin Kolny
2024-01-16 14:15:55 +00:00
committed by GitHub
parent b3aaf2abc0
commit ffa131b5ac
12 changed files with 183 additions and 112 deletions
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6
build-scripts/config_common.cmake
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@ -248,6 +248,12 @@ if (WAMR_BUILD_SHARED_MEMORY EQUAL 1)
else ()
add_definitions (-DWASM_ENABLE_SHARED_MEMORY=0)
endif ()
if (WAMR_ENABLE_SHARED_MEMORY_MMAP EQUAL 1)
add_definitions (-DWASM_ENABLE_SHARED_MEMORY_MMAP=1)
message (" Shared memory allocated using mmap enabled")
else ()
add_definitions (-DWASM_ENABLE_SHARED_MEMORY_MMAP=0)
endif ()
if (WAMR_BUILD_THREAD_MGR EQUAL 1)
message (" Thread manager enabled")
endif ()