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| author |   Dave Barach <dave@barachs.net> | 2020-10-09 10:17:22 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2020-10-09 16:52:13 +0000 |
| commit | 695eb9353dc4895a17d960488675b7e44c8022db (patch) | |
| tree | 119db6942c2efed25ccc255b2860925a48aab717 /src/vlib/unix | |
| parent | dd9eae5c29a4379943e60ddf6b7ab96b8e154040 (diff) | |
vlib: save signal handler data to global vbls
Turns out that clang is a bit too enthusiastic about mapping static
variables to registers, which makes it hard to extract (especially)
the faulting VA from an optimized core file.
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I836e5d9695aeb4c5ee4a27f9565acf08ee4eaac0
Diffstat (limited to 'src/vlib/unix')
| -rw-r--r-- | src/vlib/unix/main.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/vlib/unix/main.c b/src/vlib/unix/main.c index 9dde666bbef..83a3a1f643b 100644 --- a/src/vlib/unix/main.c +++ b/src/vlib/unix/main.c @@ -93,8 +93,8 @@ unsetup_signal_handlers (int sig) dangerous to vec_resize it when crashing, mheap itself might have been corrupted already */ static u8 *syslog_msg = 0; -static int last_signum = 0; -static uword last_faulting_address = 0; +int vlib_last_signum = 0; +uword vlib_last_faulting_address = 0; static void unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc) @@ -102,8 +102,8 @@ unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc) uword fatal = 0; /* These come in handy when looking at core files from optimized images */ - last_signum = signum; - last_faulting_address = (uword) si->si_addr; + vlib_last_signum = signum; + vlib_last_faulting_address = (uword) si->si_addr; syslog_msg = format (syslog_msg, "received signal %U, PC %U", format_signal, signum, format_ucontext_pc, uc); |