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- removed marked code for how to create GDB/LLDB debug info as it will probably never be implemented
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1 changed files with 0 additions and 46 deletions
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@ -314,52 +314,6 @@ extern "C"
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{
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void __register_frame(const void*);
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void __deregister_frame(const void*);
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#if 0 // Someone needs to implement this if GDB/LLDB should produce correct call stacks
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// GDB JIT interface (GG guys! Thank you SO MUCH for not hooking into the above functions. Really appreciate it!)
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// To register code with GDB, the JIT should follow this protocol:
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//
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// * Generate an object file in memory with symbols and other desired debug information.
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// The file must include the virtual addresses of the sections.
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// * Create a code entry for the file, which gives the start and size of the symbol file.
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// * Add it to the linked list in the JIT descriptor.
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// * Point the relevant_entry field of the descriptor at the entry.
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// * Set action_flag to JIT_REGISTER and call __jit_debug_register_code.
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// Pure beauty! Now a JIT also has to create a full ELF object file. And is it a MACH-O on macOS? You guys ROCK!
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typedef enum
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{
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JIT_NOACTION = 0,
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JIT_REGISTER_FN,
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JIT_UNREGISTER_FN
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} jit_actions_t;
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struct jit_code_entry
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{
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struct jit_code_entry *next_entry;
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struct jit_code_entry *prev_entry;
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const char *symfile_addr;
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uint64_t symfile_size;
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};
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struct jit_descriptor
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{
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uint32_t version;
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// This type should be jit_actions_t, but we use uint32_t to be explicit about the bitwidth.
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uint32_t action_flag;
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struct jit_code_entry *relevant_entry;
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struct jit_code_entry *first_entry;
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};
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// GDB puts a breakpoint in this function.
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void __attribute__((noinline)) __jit_debug_register_code() { };
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// Make sure to specify the version statically, because the debugger may check the version before we can set it.
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struct jit_descriptor __jit_debug_descriptor = { 1, 0, 0, 0 };
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#endif
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}
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static void WriteLength(TArray<uint8_t> &stream, unsigned int pos, unsigned int v)
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