[llvm] 168ee72 - [NFC][llvm-xray] add a llvm-xray convert option `no-demangle`
via llvm-commits
llvm-commits at lists.llvm.org
Tue Aug 17 21:22:23 PDT 2021
Author: Xu Mingjie
Date: 2021-08-18T12:22:04+08:00
New Revision: 168ee727186b56c68a164de19fdcdd6d8a89fa2d
URL: https://github.com/llvm/llvm-project/commit/168ee727186b56c68a164de19fdcdd6d8a89fa2d
DIFF: https://github.com/llvm/llvm-project/commit/168ee727186b56c68a164de19fdcdd6d8a89fa2d.diff
LOG: [NFC][llvm-xray] add a llvm-xray convert option `no-demangle`
When option `--symbolize` is true, llvm-xray convert will demangle function
name on default. This patch adds a llvm-xray convert option `no-demangle` to
determine whether to demangle function name when symbolizing function ids from
the input log.
Reviewed By: MaskRay, smeenai
Differential Revision: https://reviews.llvm.org/D108019
Added:
Modified:
llvm/test/tools/llvm-xray/X86/convert-with-debug-syms.txt
llvm/tools/llvm-xray/xray-converter.cpp
Removed:
################################################################################
diff --git a/llvm/test/tools/llvm-xray/X86/convert-with-debug-syms.txt b/llvm/test/tools/llvm-xray/X86/convert-with-debug-syms.txt
index dd601486b2fb1..fd6695a795f6a 100644
--- a/llvm/test/tools/llvm-xray/X86/convert-with-debug-syms.txt
+++ b/llvm/test/tools/llvm-xray/X86/convert-with-debug-syms.txt
@@ -15,3 +15,21 @@
; CHECK-NEXT: - { type: 0, func-id: 1, function: {{.*bar.*}}, cpu: 37, thread: 84697, kind: function-exit, tsc: 3315356841454802, data: '' }
; CHECK-NEXT: - { type: 0, func-id: 3, function: main, cpu: 37, thread: 84697, kind: function-exit, tsc: 3315356841494828, data: '' }
; CHECK-NEXT: ...
+
+; RUN: llvm-xray convert -m %S/Inputs/elf64-sample-o2.bin --symbolize --no-demangle %S/Inputs/naive-log-simple.xray -f=yaml -o - 2>&1 | FileCheck --check-prefix=MANGLED %s
+
+; MANGLED: ---
+; MANGLED-NEXT: header:
+; MANGLED-NEXT: version: 1
+; MANGLED-NEXT: type: 0
+; MANGLED-NEXT: constant-tsc: true
+; MANGLED-NEXT: nonstop-tsc: true
+; MANGLED-NEXT: cycle-frequency: 2601000000
+; MANGLED-NEXT: records:
+; MANGLED-NEXT: - { type: 0, func-id: 3, function: main, cpu: 37, thread: 84697, kind: function-enter, tsc: 3315356841453914, data: '' }
+; MANGLED-NEXT: - { type: 0, func-id: 2, function: _Z3foov, cpu: 37, thread: 84697, kind: function-enter, tsc: 3315356841454542, data: '' }
+; MANGLED-NEXT: - { type: 0, func-id: 2, function: _Z3foov, cpu: 37, thread: 84697, kind: function-exit, tsc: 3315356841454670, data: '' }
+; MANGLED-NEXT: - { type: 0, func-id: 1, function: _Z3barv, cpu: 37, thread: 84697, kind: function-enter, tsc: 3315356841454762, data: '' }
+; MANGLED-NEXT: - { type: 0, func-id: 1, function: _Z3barv, cpu: 37, thread: 84697, kind: function-exit, tsc: 3315356841454802, data: '' }
+; MANGLED-NEXT: - { type: 0, func-id: 3, function: main, cpu: 37, thread: 84697, kind: function-exit, tsc: 3315356841494828, data: '' }
+; MANGLED-NEXT: ...
diff --git a/llvm/tools/llvm-xray/xray-converter.cpp b/llvm/tools/llvm-xray/xray-converter.cpp
index 47cb645a54088..2ab18b8b9ee37 100644
--- a/llvm/tools/llvm-xray/xray-converter.cpp
+++ b/llvm/tools/llvm-xray/xray-converter.cpp
@@ -57,6 +57,11 @@ static cl::opt<bool>
cl::init(false), cl::sub(Convert));
static cl::alias ConvertSymbolize2("y", cl::aliasopt(ConvertSymbolize),
cl::desc("Alias for -symbolize"));
+static cl::opt<bool>
+ NoDemangle("no-demangle",
+ cl::desc("determines whether to demangle function name "
+ "when symbolizing function ids from the input log"),
+ cl::init(false), cl::sub(Convert));
static cl::opt<std::string>
ConvertInstrMap("instr_map",
@@ -373,7 +378,10 @@ static CommandRegistration Unused(&Convert, []() -> Error {
}
const auto &FunctionAddresses = Map.getFunctionAddresses();
- symbolize::LLVMSymbolizer Symbolizer;
+ symbolize::LLVMSymbolizer::Options SymbolizerOpts;
+ if (NoDemangle)
+ SymbolizerOpts.Demangle = false;
+ symbolize::LLVMSymbolizer Symbolizer(SymbolizerOpts);
llvm::xray::FuncIdConversionHelper FuncIdHelper(ConvertInstrMap, Symbolizer,
FunctionAddresses);
llvm::xray::TraceConverter TC(FuncIdHelper, ConvertSymbolize);
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