[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 closed https://github.com/llvm/llvm-project/pull/101962 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

omern1 wrote: > Conventionally, .debug_* sections are reserved for DWARF, even without > official standards. GNU strip's default behavior --strip-all, emulated by llvm-objcopy's --strip-all-gnu option, is roughly to remove non-SHF_ALLOC sections that are not debug. > The .llvm prefix holds no

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 01/10] [MC] Emit a jump table size section This patch will make LLVM

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 created https://github.com/llvm/llvm-project/pull/101962 This patch will make LLVM emit a jump table size section containing tuples of (jump table address, entry count) in object files. This section is useful for tools that need to statically reconstruct the control f

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/2] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/3] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

omern1 wrote: > The `.debug_` prefix is for DEARF content, is this being proposed to the > DWARF standard? No, this isn't being proposed for the DWARF standard. Though, searching through the DWARF standard I couldn't find anywhere saying that the `.debug_` section name prefix is reserved for

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/4] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/5] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/7] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/8] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

https://github.com/omern1 updated https://github.com/llvm/llvm-project/pull/101962 >From 14f3cb82f0d7e69261bd7e1317bd66392e9a2c2b Mon Sep 17 00:00:00 2001 From: Nabeel Omer Date: Mon, 5 Aug 2024 11:50:18 +0100 Subject: [PATCH 1/9] [MC] Emit a jump table size section This patch will make LLVM e

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

@@ -2764,6 +2770,27 @@ void AsmPrinter::emitJumpTableInfo() { for (const MachineBasicBlock *MBB : JTBBs) emitJumpTableEntry(MJTI, MBB, JTI); } + + if (EmitJumpTableSizesSection && TM.getTargetTriple().isOSBinFormatELF() && omern1 wrote: I've added

[clang] [llvm] [MC] Emit a jump table size section (PR #101962)

omern1 wrote: Hi @ruotongyu, > and am trying to apply it to more architectures, such as x86. I'm not sure what you mean here, this patch is really architecture independent and already works on X86. I maybe be misunderstanding you here though. > Do you have any suggestions on how to correctly