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LibJIT: Integrate GDB JIT Interface with ELF builders

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Provide a function to create an ELF image in a format GDB expects.
Outside of ELF platforms this image doesn't make much sense, and in
MacOS a Mach-O memory image is required: see
https://chromium.googlesource.com/v8/v8.git/+/refs/heads/main/src/diagnostics/gdb-jit.cc#1802

Since GDB requires active runtime addresses for the code, copying the
generated code into the image will not help. Instead, `build_gdb_image`
writes the runtime addresses of the code into a NOBITS `.text` section.
This commit is contained in:
Jesús "gsus" Lapastora 2023-12-02 10:11:39 +01:00 • committed by Andrew Kaster
parent 48a9d0ede8
commit 149e382735
4 changed files with 122 additions and 0 deletions
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8
Userland/Libraries/LibJIT/CMakeLists.txt
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@ -2,6 +2,14 @@ set(SOURCES
Assembler.cpp
GDB.cpp
)
if(NOT APPLE AND NOT WIN32 AND NOT EMSCRIPTEN)
list(APPEND SOURCES GDBElf.cpp)
else()
list(APPEND SOURCES GDBUnsupported.cpp)
endif()
serenity_lib(LibJIT jit)
if(NOT APPLE AND NOT WIN32 AND NOT EMSCRIPTEN)
target_link_libraries(LibJIT PRIVATE LibELF)
endif()
target_link_libraries(LibJIT PRIVATE LibCore)