2a63c962fc
Remove old build system at the same time Change-Id: Ifdffe1fcd4cfece05f036d8de6e7cb74aca65f62
44 lines
1.3 KiB
CMake
44 lines
1.3 KiB
CMake
# Lookup symbol addresses from Ksymbol file
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set(SYSTEM_MAP "${KERNEL_DIR}/System.map" CACHE STRING "System map to look for symbols")
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set(VMLINUX "${KERNEL_DIR}/vmlinux" CACHE STRING "kernel object file")
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function(ksym SYMBOL)
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cmake_parse_arguments(KSYM "" "PREFIX;SOURCE_FILE;SUFFIX" "" ${ARGN})
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execute_process(COMMAND awk "/ ${SYMBOL}$/ { print $1 }" ${SYSTEM_MAP}
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OUTPUT_VARIABLE ADDRESS_CANDIDATES OUTPUT_STRIP_TRAILING_WHITESPACE)
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if (NOT ADDRESS_CANDIDATES)
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return()
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endif()
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# listify and get first element
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string(REPLACE "\n" ";" ADDRESS_CANDIDATES "${ADDRESS_CANDIDATES}")
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list(GET ADDRESS_CANDIDATES 0 ADDRESS)
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if (SOURCE_FILE)
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foreach(ADDRESS IN LISTS ADDRESS_CANDIDATES)
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execute_process(COMMAND addr2line -e ${VMLINUX} ${ADDRESS}
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OUTPUT_VARIABLE LINE OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(LINE MATCHES ".*${SOURCE_FILE}:.*")
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set(FOUND ADDRESS)
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break()
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endif()
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endforeach(ADDRESS)
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if(NOT FOUND)
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return()
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endif()
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# ?! why only if source_file?...
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execute_process(COMMAND "awk '/ __ksymtab_${SYMBOL}$/ { print $1 }'"
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OUTPUT_VARIABLE SYMBOL_EXPORTED OUTPUT_STRIP_TRAILING_WHITESPACE)
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if (SYMBOL_EXPORTED)
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set(ADDRESS 0)
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endif(SYMBOL_EXPORTED)
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endif(SOURCE_FILE)
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set(${KSYM_PREFIX}KSYM_${SYMBOL}${KSYM_SUFFIX} "0x${ADDRESS}" CACHE INTERNAL "symbol")
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endfunction(ksym)
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