Commit 950b8354 authored Jan 22, 2014 by Avi Kivity Committed by Arnaldo Carvalho de Melo Jan 27, 2014

perf tools: Demangle kernel and kernel module symbols too



Some kernels contain C++ code, and thus their symbols need to be
demangled.  This allows 'perf kvm top' to generate readable output.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/26f71bf5bf7ee1408e3f1a803556d5df18223ef1.1390420726.git.avi@cloudius-systems.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 0d4dd797

tools/perf/util/symbol-elf.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -922,6 +922,7 @@ int dso__load_sym(struct dso dso, struct map map,
		(u64)shdr.sh_offset);
		sym.st_value -= shdr.sh_addr - shdr.sh_offset;
		}
		new_symbol:
		/*
		* We need to figure out if the object was created from C++ sources
		* DWARF DW_compile_unit has this, but we don't always have access
		@@ -933,7 +934,6 @@ int dso__load_sym(struct dso dso, struct map map,
		if (demangled != NULL)
		elf_name = demangled;
		}
		new_symbol:
		f = symbol__new(sym.st_value, sym.st_size,
		GELF_ST_BIND(sym.st_info), elf_name);
		free(demangled);