From a7f65495258933eaf361e82eb325c9d826b455d5 Mon Sep 17 00:00:00 2001 From: Mark Wielaard Date: Sat, 4 Mar 2023 21:55:56 +0100 Subject: tests: skip '(null)' symname frames in backtrace tests Some setups might have some frames for unknown (null) functions in the thread backtrace. Skip these frames instead of failing immediately. * tests/backtrace.c (callback_verify): Check and skip nulls_seen. https://sourceware.org/bugzilla/show_bug.cgi?id=29176 Signed-off-by: Mark Wielaard --- tests/backtrace.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tests/backtrace.c b/tests/backtrace.c index afc12fb9..55555301 100644 --- a/tests/backtrace.c +++ b/tests/backtrace.c @@ -90,6 +90,14 @@ callback_verify (pid_t tid, unsigned frameno, Dwarf_Addr pc, return; } Dwfl_Module *mod; + /* Skip frames for which there isn't a function name. */ + static int nulls_seen = 0; + if (symname == NULL) + { + nulls_seen++; + return; + } + frameno -= nulls_seen; /* See case 4. Special case to help out simple frame pointer unwinders. */ static bool duplicate_sigusr2 = false; if (duplicate_sigusr2) -- cgit v1.2.3