Yonghong Song 0c6ca50b9c bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections ... Commit e4507fb8c94b ("bpf: disable DwarfUsesRelocationsAcrossSections") disables MCAsmInfo DwarfUsesRelocationsAcrossSections unconditionally so that dwarf will not use cross section (between dwarf and symbol table) relocations. This new debug format enables pahole to dump structures correctly as libdwarves.so does not have BPF backend support yet. This new debug format, however, breaks bcc (https://github.com/iovisor/bcc) source debug output as llvm in-memory Dwarf support has some issues to handle it. More specifically, with DwarfUsesRelocationsAcrossSections disabled, JIT compiler does not generate .debug_abbrev and Dwarf DIE (debug info entry) processing is not happy about this. This patch introduces a new flag -mattr=dwarfris (dwarf relocation in section) to disable DwarfUsesRelocationsAcrossSections. DwarfUsesRelocationsAcrossSections is true by default. Signed-off-by: Yonghong Song <yhs@fb.com> llvm-svn: 326505		2018-03-01 23:04:59 +00:00
..
AsmParser	[Asm] Add debug tracing in table-generated assembly matcher	2017-10-11 09:17:43 +00:00
Disassembler	bpf: New decoder namespace for 32-bit subregister load/store	2018-02-23 23:49:31 +00:00
InstPrinter	bpf: add support for objdump -print-imm-hex	2017-12-20 19:39:58 +00:00
MCTargetDesc	bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections	2018-03-01 23:04:59 +00:00
TargetInfo	Add backend name to Target to enable runtime info to be fed back into TableGen	2017-11-15 23:55:44 +00:00
BPF.h	bpf: New optimization pass for eliminating unnecessary i32 promotions	2018-02-23 23:49:32 +00:00
BPF.td	bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections	2018-03-01 23:04:59 +00:00
BPFAsmPrinter.cpp	bpf: add inline-asm support	2017-09-18 23:29:36 +00:00
BPFCallingConv.td	bpf: New calling convention for 32-bit subregisters	2018-02-23 23:49:23 +00:00
BPFFrameLowering.cpp
BPFFrameLowering.h	Move TargetFrameLowering.h to CodeGen where it's implemented	2017-11-03 22:32:11 +00:00
BPFInstrFormats.td	bpf: add new insns for bswap_to_le and negation	2017-09-28 02:46:11 +00:00
BPFInstrInfo.cpp	bpf: Support 32-bit subregister in various InstrInfo hooks	2018-02-23 23:49:29 +00:00
BPFInstrInfo.h	Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering	2017-11-08 01:01:31 +00:00
BPFInstrInfo.td	bpf: New instruction patterns for 32-bit subregister load and store	2018-02-23 23:49:28 +00:00
BPFISelDAGToDAG.cpp	bpf: New instruction patterns for 32-bit subregister load and store	2018-02-23 23:49:28 +00:00
BPFISelLowering.cpp	bpf: Enable 32-bit subregister support for -mattr=+alu32	2018-02-23 23:49:30 +00:00
BPFISelLowering.h	bpf: Support i32 in getScalarShiftAmountTy method	2018-02-23 23:49:26 +00:00
BPFMCInstLower.cpp	Cleanup dump() functions.	2017-01-28 02:02:38 +00:00
BPFMCInstLower.h	[bpf] error when unknown bpf helper is called	2017-01-17 07:26:17 +00:00
BPFMIPeephole.cpp	bpf: New optimization pass for eliminating unnecessary i32 promotions	2018-02-23 23:49:32 +00:00
BPFRegisterInfo.cpp	bpf: Use markSuperRegs to mark reserved registers	2018-02-23 23:49:18 +00:00
BPFRegisterInfo.h	[BPF] Return true in enableMultipleCopyHints().	2018-02-18 10:09:54 +00:00
BPFRegisterInfo.td	bpf: add 32bit register set	2017-09-22 04:36:35 +00:00
BPFSubtarget.cpp	bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections	2018-03-01 23:04:59 +00:00
BPFSubtarget.h	bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections	2018-03-01 23:04:59 +00:00
BPFTargetMachine.cpp	bpf: introduce -mattr=dwarfris to disable DwarfUsesRelocationsAcrossSections	2018-03-01 23:04:59 +00:00
BPFTargetMachine.h	Revert "TargetMachine: Merge TargetMachine and LLVMTargetMachine"	2017-10-12 22:57:28 +00:00
CMakeLists.txt	bpf: New optimization pass for eliminating unnecessary i32 promotions	2018-02-23 23:49:32 +00:00
LLVMBuild.txt	bpf: Add BPF AsmParser support in LLVM	2017-09-12 17:55:23 +00:00