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[llvm-symbolizer] Add legacy aliases -demangle=true and -demangle=false. 

This is used in the wild, don't break compatibility for no good reason.
https://github.com/google/pprof/blob/master/internal/binutils/addr2liner_llvm.go
This commit is contained in:
Benjamin Kramer 2020-08-05 12:03:30 +02:00
parent 4963ca4658
commit c558c22cab
2 changed files with 9 additions and 0 deletions
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6
llvm/test/tools/llvm-symbolizer/demangle.s
View File

@ -31,5 +31,11 @@ _Z1cv:
# RUN: llvm-addr2line -fCe %t.o 0 \
# RUN: | FileCheck %s --check-prefix=DEMANGLED_FUNCTION_NAME
# pprof passes -demangle=false
# RUN: llvm-symbolizer -demangle=false --obj %t.o 0 \
# RUN: | FileCheck %s --check-prefix=MANGLED_FUNCTION_NAME
# RUN: llvm-symbolizer -demangle=true --obj %t.o 0 \
# RUN: | FileCheck %s --check-prefix=DEMANGLED_FUNCTION_NAME
# MANGLED_FUNCTION_NAME: _Z1cv
# DEMANGLED_FUNCTION_NAME: c()

3
llvm/tools/llvm-symbolizer/Opts.td
View File

@ -62,3 +62,6 @@ def : Flag<["-"], "s">, Alias<basenames>, HelpText<"Alias for --basenames">;
// Compatibility aliases for old asan_symbolize.py and sanitizer binaries (before 2020-08).
def : Flag<["--"], "inlining=true">, Alias<inlines>, HelpText<"Alias for --inlines">;
def : Flag<["--"], "inlining=false">, Alias<no_inlines>, HelpText<"Alias for --no-inlines">;
// Compatibility aliases for pprof's symbolizer.
def : Flag<["-"], "demangle=true">, Alias<demangle>, HelpText<"Alias for --demangle">;
def : Flag<["-"], "demangle=false">, Alias<no_demangle>, HelpText<"Alias for --no-demangle">;