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[client] cmake: make MakeObject use relative paths

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This prevents issues like obscure characters getting transformed in symbol
names, resulting in an endless game of whack-a-mole finding symbols that are
replaced, such as 58964ce317.
This commit is contained in:
Quantum 2021-08-10 03:27:26 -04:00 committed by Geoffrey McRae
parent c1a362f8d3
commit 4a06f7cfd5
1 changed files with 7 additions and 8 deletions
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15
client/cmake/MakeObject.cmake
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@ -5,14 +5,13 @@ function(make_object out_var)
file(RELATIVE_PATH out_f ${CMAKE_CURRENT_SOURCE_DIR} "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}")
set(out_h "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.h")
set(out_f "${CMAKE_CURRENT_BINARY_DIR}/${out_f}.o")
string(REGEX REPLACE "[/.-]" "_" sym_in "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}")
string(REGEX REPLACE "[/.-]" "_" sym_out "${in_f}")
string(REGEX REPLACE "[/.-]" "_" sym_in "${in_f}")
add_custom_command(OUTPUT ${out_f}
COMMAND ${CMAKE_LINKER} -r -b binary -o ${out_f} "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}"
COMMAND ${CMAKE_LINKER} -r -b binary -o ${out_f} "${in_f}"
COMMAND ${CMAKE_OBJCOPY} --rename-section .data=.rodata,CONTENTS,ALLOC,LOAD,READONLY,DATA ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_start=b_${sym_out} ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_end=b_${sym_out}_end ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_start=b_${sym_in} ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --redefine-sym _binary_${sym_in}_end=b_${sym_in}_end ${out_f} ${out_f}
COMMAND ${CMAKE_OBJCOPY} --strip-symbol _binary_${sym_in}_size ${out_f} ${out_f}
DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${in_f}"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
@ -20,9 +19,9 @@ function(make_object out_var)
VERBATIM
)
file(WRITE ${out_h} "extern const char b_${sym_out}[];\n")
file(APPEND ${out_h} "extern const char b_${sym_out}_end[];\n")
file(APPEND ${out_h} "#define b_${sym_out}_size (b_${sym_out}_end - b_${sym_out})\n")
file(WRITE ${out_h} "extern const char b_${sym_in}[];\n")
file(APPEND ${out_h} "extern const char b_${sym_in}_end[];\n")
file(APPEND ${out_h} "#define b_${sym_in}_size (b_${sym_in}_end - b_${sym_in})\n")
get_filename_component(h_dir ${out_h} DIRECTORY)
list(APPEND result_h ${h_dir})