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Merge pull request #2584 from martin-frbg/issue2583 

[WIP] Have CMAKE parse conditional lines in KERNEL files
This commit is contained in:
Martin Kroeker 2020-04-28 10:35:12 +02:00 committed by GitHub
parent b6795db731 3bd56846bb
commit 141998dce2
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1 changed files with 47 additions and 0 deletions
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47
cmake/utils.cmake
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@ -15,10 +15,33 @@ endfunction ()
# Reads a Makefile into CMake vars. # Reads a Makefile into CMake vars.
macro(ParseMakefileVars MAKEFILE_IN) macro(ParseMakefileVars MAKEFILE_IN)
message(STATUS "Reading vars from ${MAKEFILE_IN}...") message(STATUS "Reading vars from ${MAKEFILE_IN}...")
set (IfElse 0)
set (ElseSeen 0)
file(STRINGS ${MAKEFILE_IN} makefile_contents) file(STRINGS ${MAKEFILE_IN} makefile_contents)
foreach (makefile_line ${makefile_contents}) foreach (makefile_line ${makefile_contents})
#message(STATUS "parsing ${makefile_line}")
if (${IfElse} GREATER 0)
string(REGEX MATCH "endif[ \t]*" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "")
# message(STATUS "ENDIF ${makefile_line}")
set (IfElse 0)
set (ElseSeen 0)
continue ()
endif ()
string(REGEX MATCH "else[ \t]*" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "")
# message(STATUS "ELSE ${makefile_line}")
set (ElseSeen 1)
continue ()
endif()
if ( (${IfElse} EQUAL 2 AND ${ElseSeen} EQUAL 0) OR ( ${IfElse} EQUAL 1 AND ${ElseSeen} EQUAL 1))
# message(STATUS "skipping ${makefile_line}")
continue ()
endif ()
endif ()
string(REGEX MATCH "([0-9_a-zA-Z]+)[ \t]*=[ \t]*(.+)$" line_match "${makefile_line}") string(REGEX MATCH "([0-9_a-zA-Z]+)[ \t]*=[ \t]*(.+)$" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "") if (NOT "${line_match}" STREQUAL "")
#message(STATUS "match on ${line_match}")
set(var_name ${CMAKE_MATCH_1}) set(var_name ${CMAKE_MATCH_1})
set(var_value ${CMAKE_MATCH_2}) set(var_value ${CMAKE_MATCH_2})
# check for Makefile variables in the string, e.g. $(TSUFFIX) # check for Makefile variables in the string, e.g. $(TSUFFIX)
@ -33,7 +56,31 @@ macro(ParseMakefileVars MAKEFILE_IN)
else () else ()
string(REGEX MATCH "include \\$\\(KERNELDIR\\)/(.+)$" line_match "${makefile_line}") string(REGEX MATCH "include \\$\\(KERNELDIR\\)/(.+)$" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "") if (NOT "${line_match}" STREQUAL "")
#message(STATUS "match on include ${line_match}")
ParseMakefileVars(${KERNELDIR}/${CMAKE_MATCH_1}) ParseMakefileVars(${KERNELDIR}/${CMAKE_MATCH_1})
else ()
# message(STATUS "unmatched line ${line_match}")
string(REGEX MATCH "ifeq \\(\\$\\(([_A-Z]+)\\),[ \t]*([0-9_A-Z]+)\\)" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "")
# message(STATUS "IFEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_2}")
if (${${CMAKE_MATCH_1}} STREQUAL ${CMAKE_MATCH_2})
# message (STATUS "condition is true")
set (IfElse 1)
else ()
set (IfElse 2)
endif ()
else ()
string(REGEX MATCH "ifneq \\(\\$\\(([_A-Z]+)\\),[ \t]*([0-9_A-Z]+)\\)" line_match "${makefile_line}")
if (NOT "${line_match}" STREQUAL "")
# message(STATUS "IFNEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_2}")
if (NOT ( ${${CMAKE_MATCH_1}} STREQUAL ${CMAKE_MATCH_2}))
# message (STATUS "condition is true")
set (IfElse 1)
else ()
set (IfElse 2)
endif ()
endif ()
endif ()
endif () endif ()
endif () endif ()
endforeach () endforeach ()