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| author | Mark Wielaard <mjw@redhat.com> | 2014-01-07 21:00:44 +0100 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-08-22 20:38:24 +0900 |
| commit | 7f40999b3db608961a2ddf59b9c56b611a856611 (patch) | |
| tree | b9f2d6815e8ea27e1af718450250a83f53379b47 /testsuite | |
| parent | aa7a88a347fda1b709ed18745f832e15441125dd (diff) | |
| download | ltrace-7f40999b3db608961a2ddf59b9c56b611a856611.tar.gz ltrace-7f40999b3db608961a2ddf59b9c56b611a856611.tar.bz2 ltrace-7f40999b3db608961a2ddf59b9c56b611a856611.zip | |
Add support for using elfutils as unwinder.
This adds support for using elfutils as unwinder with -w. Since elfutils
0.158 elfutils contains a simple unwinder interface that matches nicely
on the ltrace backtrace support.
The code reuses the libunwind infrastructure already in ltrace where
possible (by defining HAVE_UNWINDER which is 1 if either libunwind or
elfutils is used). It also reuses the ltrace proc_add_library callback
to keep track of the ELF files mapped for the unwinder.
The current implementation matches the output as if libunwind was used.
But elfutils can also provide some more information since it can lookup
the DWARF debuginfo. So if the source info of an address can be found
through elfutils the backtrace will also include this as an additional
output line per frame.
Diffstat (limited to 'testsuite')
| -rw-r--r-- | testsuite/Makefile.am | 1 | ||||
| -rw-r--r-- | testsuite/lib/ltrace.exp | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am index f9b6c0d..d999b2e 100644 --- a/testsuite/Makefile.am +++ b/testsuite/Makefile.am @@ -38,6 +38,7 @@ BUILT_SOURCES = env.exp env.exp: Makefile rm -f env.exp echo set libelf_LD_LIBRARY_PATH '"$(libelf_LD_LIBRARY_PATH)"' >> $@ + echo set elfutils_LD_LIBRARY_PATH '"$(elfutils_LD_LIBRARY_PATH)"' >> $@ echo set libunwind_LD_LIBRARY_PATH '"$(libunwind_LD_LIBRARY_PATH)"' >> $@ CLEANFILES = *.o *.so *.log *.sum *.ltrace site.bak setval.tmp site.exp env.exp diff --git a/testsuite/lib/ltrace.exp b/testsuite/lib/ltrace.exp index abb32f6..9931794 100644 --- a/testsuite/lib/ltrace.exp +++ b/testsuite/lib/ltrace.exp @@ -742,6 +742,10 @@ proc ld_library_path { args } { if {[string length $libelf_LD_LIBRARY_PATH] > 0} { lappend ALL_LIBRARY_PATHS $libelf_LD_LIBRARY_PATH } + global elfutils_LD_LIBRARY_PATH + if {[string length $elfutils_LD_LIBRARY_PATH] > 0} { + lappend ALL_LIBRARY_PATHS $elfutils_LD_LIBRARY_PATH + } global libunwind_LD_LIBRARY_PATH if {[string length $libunwind_LD_LIBRARY_PATH] > 0} { lappend ALL_LIBRARY_PATHS $libunwind_LD_LIBRARY_PATH |