Fix the cmake parser to identify more patterns
This commit is contained in:
Rafael Cardoso Fernandes Sousa
parent
ec4daf420f
commit
fb891f33da
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@ -15,35 +15,83 @@ endfunction ()
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# Reads a Makefile into CMake vars.
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macro(ParseMakefileVars MAKEFILE_IN)
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message(STATUS "Reading vars from ${MAKEFILE_IN}...")
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set (IfElse 0)
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set (ElseSeen 0)
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set (C_COMPILER ${CMAKE_C_COMPILER_ID})
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set (IfElse 0)
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set (ElseSeen 0)
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set (SkipIfs 0)
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set (SkipElse 0)
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file(STRINGS ${MAKEFILE_IN} makefile_contents)
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foreach (makefile_line ${makefile_contents})
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#message(STATUS "parsing ${makefile_line}")
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if (${IfElse} GREATER 0)
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#message(STATUS "parsing ${makefile_line}")
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# Skip the entire scope of the else statement given that the if statement that precedes it has the valid condition.
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# The variable SkipIfs is used to identify which endif statement closes the scope of the else statement.
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if (${SkipElse} EQUAL 1)
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#message(STATUS "skipping ${makefile_line}")
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string(REGEX MATCH "(ifeq|ifneq|ifdef|ifndef) .*$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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MATH(EXPR SkipIfs "${SkipIfs}+1")
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endif ()
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string(REGEX MATCH "endif[ \t]*" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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# message(STATUS "ENDIF ${makefile_line}")
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set (IfElse 0)
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set (ElseSeen 0)
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if (${SkipIfs} EQUAL 0)
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set (SkipElse 0)
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else ()
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MATH(EXPR SkipIfs "${SkipIfs}-1")
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endif ()
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endif ()
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continue ()
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endif ()
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# The variable IfElse is greater than 0 if and only if the previously parsed line is an if statement.
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if (${IfElse} GREATER 0)
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# If the current scope is the one that has to be skipped, the if/endif/else statements
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# along with it till the endif that closes the current scope have to be ignored as well.
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string(REGEX MATCH "(ifeq|ifneq|ifdef|ifndef) .*$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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if ((${IfElse} EQUAL 2 AND ${ElseSeen} EQUAL 0) OR (${IfElse} EQUAL 1 AND ${ElseSeen} EQUAL 1))
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#message(STATUS "skipping ${makefile_line}")
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MATH(EXPR SkipIfs "${SkipIfs}+1")
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continue ()
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endif ()
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endif ()
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string(REGEX MATCH "endif[ \t]*" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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if (${SkipIfs} EQUAL 0)
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#message(STATUS "ENDIF ${makefile_line}")
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set (IfElse 0)
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set (ElseSeen 0)
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else ()
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#message(STATUS "skipping ${makefile_line}")
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MATH(EXPR SkipIfs "${SkipIfs}-1")
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endif ()
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continue ()
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endif ()
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string(REGEX MATCH "else[ \t]*" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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# message(STATUS "ELSE ${makefile_line}")
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set (ElseSeen 1)
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continue ()
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endif()
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if ( (${IfElse} EQUAL 2 AND ${ElseSeen} EQUAL 0) OR ( ${IfElse} EQUAL 1 AND ${ElseSeen} EQUAL 1))
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# message(STATUS "skipping ${makefile_line}")
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continue ()
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if (NOT "${line_match}" STREQUAL "")
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if (${SkipIfs} EQUAL 0)
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#message(STATUS "ELSE ${makefile_line}")
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set (ElseSeen 1)
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else ()
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#message(STATUS "skipping ${makefile_line}")
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endif ()
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continue ()
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endif()
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# Skip the lines that are not part of the path that has to be taken.
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if ((${IfElse} EQUAL 2 AND ${ElseSeen} EQUAL 0) OR (${IfElse} EQUAL 1 AND ${ElseSeen} EQUAL 1) OR (${SkipIfs} GREATER 0))
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#message(STATUS "skipping ${makefile_line}")
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continue ()
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endif ()
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endif ()
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# Skip commented lines (the ones that start with '#')
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string(REGEX MATCH "[ \t]*\\#.*$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "skipping ${makefile_line}")
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continue ()
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endif ()
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string(REGEX MATCH "([0-9_a-zA-Z]+)[ \t]*=[ \t]*(.+)$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "match on ${line_match}")
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#message(STATUS "match on ${line_match}")
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set(var_name ${CMAKE_MATCH_1})
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# set(var_value ${CMAKE_MATCH_2})
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#set(var_value ${CMAKE_MATCH_2})
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string(STRIP ${CMAKE_MATCH_2} var_value)
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# check for Makefile variables in the string, e.g. $(TSUFFIX)
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string(REGEX MATCHALL "\\$\\(([0-9_a-zA-Z]+)\\)" make_var_matches ${var_value})
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@ -54,39 +102,93 @@ macro(ParseMakefileVars MAKEFILE_IN)
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string(REPLACE "$(${make_var})" "${${make_var}}" var_value ${var_value})
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endforeach ()
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set(${var_name} ${var_value})
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else ()
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string(REGEX MATCH "include \\$\\(KERNELDIR\\)/(.+)$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "match on include ${line_match}")
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ParseMakefileVars(${KERNELDIR}/${CMAKE_MATCH_1})
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else ()
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# message(STATUS "unmatched line ${line_match}")
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string(REGEX MATCH "ifeq \\(\\$\\(([_A-Z]+)\\),[ \t]*([0-9_A-Z]+)\\)" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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# message(STATUS "IFEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_2}")
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if (DEFINED ${${CMAKE_MATCH_1}} AND ${${CMAKE_MATCH_1}} STREQUAL ${CMAKE_MATCH_2})
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# message (STATUS "condition is true")
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set (IfElse 1)
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else ()
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set (IfElse 2)
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endif ()
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continue ()
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endif ()
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# Include a new file to be parsed
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string(REGEX MATCH "include \\$\\(KERNELDIR\\)/(.+)$" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "match on include ${line_match}")
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ParseMakefileVars(${KERNELDIR}/${CMAKE_MATCH_1})
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continue ()
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endif ()
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# The if statement that precedes this else has the path taken
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# Thus, this else statement has to be skipped.
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string(REGEX MATCH "else[ \t]*" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "skipping ${makefile_line}")
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set (SkipElse 1)
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continue()
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endif()
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# Example 1: ifdef HAVE_MSA
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# Example 2: ifndef ZNRM2KERNEL
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string(REGEX MATCH "(ifdef|ifndef) ([0-9_A-Z]+)" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "${CMAKE_MATCH_1} first: ${CMAKE_MATCH_2}")
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set (ElseSeen 0)
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if (DEFINED ${CMAKE_MATCH_2})
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if (${CMAKE_MATCH_1} STREQUAL "ifdef")
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#message (STATUS "condition is true")
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set (IfElse 1)
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else ()
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string(REGEX MATCH "ifneq \\(\\$\\(([_A-Z]+)\\),[ \t]*([0-9_A-Z]+)\\)" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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# message(STATUS "IFNEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_2}")
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if ( ${CMAKE_MATCH_1} STREQUAL C_COMPILER)
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set (CMAKE_MATCH_1 CMAKE_C_COMPILER)
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endif ()
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if (NOT ( ${${CMAKE_MATCH_1}} STREQUAL ${CMAKE_MATCH_2}))
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# message (STATUS "condition is true")
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set (IfElse 1)
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else ()
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set (IfElse 2)
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endif ()
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endif ()
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set (IfElse 2)
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endif ()
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else ()
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if (${CMAKE_MATCH_1} STREQUAL "ifdef")
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set (IfElse 2)
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else ()
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#message (STATUS "condition is true")
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set (IfElse 1)
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endif ()
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endif ()
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continue ()
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endif ()
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# Example 1: ifeq ($(SGEMM_UNROLL_M), 16)
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# Example 2: ifeq ($(SGEMM_UNROLL_M)x$(SGEMM_UNROLL_N), 8x8)
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# Example 3: ifeq ($(__BYTE_ORDER__)$(ELF_VERSION),__ORDER_BIG_ENDIAN__2)
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# Ignore the second group since (?:...) does not work on cmake
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string(REGEX MATCH "ifeq \\(\\$\\(([0-9_A-Z]+)\\)(([0-9_A-Za-z]*)\\$\\(([0-9_A-Z]+)\\))?,[ \t]*([0-9_A-Za-z]+)\\)" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "IFEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_3} third: ${CMAKE_MATCH_4} fourth: ${CMAKE_MATCH_5}")
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if (DEFINED ${CMAKE_MATCH_1})
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if (DEFINED ${CMAKE_MATCH_4})
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set (STR ${${CMAKE_MATCH_1}}${CMAKE_MATCH_3}${${CMAKE_MATCH_4}})
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else ()
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set (STR ${${CMAKE_MATCH_1}})
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endif ()
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if (${STR} STREQUAL ${CMAKE_MATCH_5})
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#message (STATUS "condition is true")
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set (IfElse 1)
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continue ()
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endif ()
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endif ()
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set (IfElse 2)
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continue ()
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endif ()
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# Example 1 (Group 3): ifneq ($(SGEMM_UNROLL_M), $(SGEMM_UNROLL_N))
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# Example 2 (Group 4): ifneq ($(C_COMPILER), PGI)
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string(REGEX MATCH "ifneq \\(\\$\\(([0-9_A-Z]+)\\),[ \t]*(\\$\\(([0-9_A-Z]+)\\)|([0-9_A-Z]+))\\)" line_match "${makefile_line}")
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if (NOT "${line_match}" STREQUAL "")
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#message(STATUS "IFNEQ: ${line_match} first: ${CMAKE_MATCH_1} second: ${CMAKE_MATCH_3} third: ${CMAKE_MATCH_4}")
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set (ElseSeen 0)
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set (HasValidGroup 0)
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if (DEFINED ${CMAKE_MATCH_3})
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set (HasValidGroup 1)
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set (STR ${${CMAKE_MATCH_3}})
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elseif (NOT ${CMAKE_MATCH_4} STREQUAL "")
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set (HasValidGroup 1)
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set (STR ${CMAKE_MATCH_4})
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endif ()
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if (DEFINED ${CMAKE_MATCH_1} AND ${HasValidGroup} EQUAL 1)
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if (NOT (${${CMAKE_MATCH_1}} STREQUAL ${STR}))
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#message (STATUS "condition is true")
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set (IfElse 1)
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continue ()
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endif ()
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endif ()
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set (IfElse 2)
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continue ()
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endif ()
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#message(STATUS "unmatched line ${line_match}")
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endforeach ()
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endmacro ()
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