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authorLukas Larsson <lukas@erlang-solutions.com>2014-03-25 17:41:31 +0100
committerLukas Larsson <lukas@erlang-solutions.com>2014-03-28 10:53:47 +0100
commit49d8e0f92e0b496c9be4c13edecc498b31380cc9 (patch)
treeaea825f619d17f35db6f42021472f6f23ef3dd59
parent8d3959c423b79bc8b55c39e039e7ff6517d87212 (diff)
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erts: Add etp-lc-dump and etp-ppc-stacktrace macro
-rw-r--r--erts/emulator/beam/erl_lock_check.c4
-rw-r--r--erts/emulator/beam/erl_process.c7
-rw-r--r--erts/etc/unix/etp-commands.in87
3 files changed, 93 insertions, 5 deletions
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index 7e3a90779d..c13eb87012 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -270,9 +270,9 @@ union erts_lc_free_block_t_ {
static ethr_tsd_key locks_key;
-static erts_lc_locked_locks_t *erts_locked_locks;
+static erts_lc_locked_locks_t *erts_locked_locks = NULL;
-static erts_lc_free_block_t *free_blocks;
+static erts_lc_free_block_t *free_blocks = NULL;
#ifdef ERTS_LC_STATIC_ALLOC
#define ERTS_LC_FB_CHUNK_SIZE 10000
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 8bf0cc9491..baca73f7f6 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -2672,6 +2672,13 @@ aux_thread(void *unused)
ErtsThrPrgrCallbacks callbacks;
int thr_prgr_active = 1;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ {
+ char buf[] = "aux_thread";
+ erts_lc_set_thread_name(buf);
+ }
+#endif
+
ssi->event = erts_tse_fetch();
callbacks.arg = (void *) ssi;
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 9e39764195..77777196a6 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -54,13 +54,23 @@ document etp-help
% etp-mfa, etp-cp,
% etp-msgq, etpf-msgq,
% etp-stacktrace, etp-stackdump, etpf-stackdump, etp-dictdump
-% etp-offheapdump, etpf-offheapdump,
-% etp-print-procs, etp-search-heaps, etp-search-alloc,
+% etp-process-info, etp-process-memory-info
+% etp-port-info, etp-port-state, etp-port-sched-flags
+% etp-heapdump, etp-offheapdump, etpf-offheapdump,
+% etp-search-heaps, etp-search-alloc,
% etp-ets-tables, etp-ets-tabledump
%
% Complex commands that use the Erlang support module.
% etp-overlapped-heaps, etp-chart, etp-chart-start, etp-chart-end
-%
+%
+% System inspection
+% etp-system-info, etp-schedulers, etp-process, etp-ports, etp-lc-dump,
+% etp-migration-info, etp-processes-memory,
+% etp-compile-info, etp-config-h-info
+%
+% Platform specific (when gdb fails you)
+% etp-ppc-stacktrace
+%
% Erlang support module handling commands:
% etp-run
%
@@ -3133,6 +3143,77 @@ document etp-ets-tabledump
%---------------------------------------------------------------------------
end
+define etp-lc-dump
+# Non-reentrant
+ set $etp_lc_dump_thread = erts_locked_locks
+ while $etp_lc_dump_thread
+ printf "Thread %s\n", $etp_lc_dump_thread->thread_name
+ set $etp_lc_dump_thread_locked = $etp_lc_dump_thread->locked.first
+ while $etp_lc_dump_thread_locked
+ if 0 <= $etp_lc_dump_thread_locked->id && $etp_lc_dump_thread_locked->id < sizeof(erts_lock_order)/sizeof(erts_lc_lock_order_t)
+ printf " %s:", erts_lock_order[$etp_lc_dump_thread_locked->id].name
+ else
+ printf " unkown:"
+ end
+ if ($etp_lc_dump_thread_locked->extra & 0x3) == 0x3
+ etp-1 $etp_lc_dump_thread_locked->extra
+ else
+ printf "%p", $etp_lc_dump_thread_locked->extra
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 0)
+ printf "[spinlock]"
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 1)
+ printf "[rw(spin)lock]"
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 2)
+ printf "[mutex]"
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 3)
+ printf "[rwmutex]"
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 4)
+ printf "[proclock]"
+ end
+ printf "(%s:%d)", $etp_lc_dump_thread_locked->file, $etp_lc_dump_thread_locked->line
+ if ($etp_lc_dump_thread_locked->flags & (0x60)) == (1 << 5)
+ printf "(r)"
+ end
+ if ($etp_lc_dump_thread_locked->flags & (0x60)) == ((1 << 5) | (1 << 6))
+ printf "(rw)"
+ end
+ printf "\n"
+ set $etp_lc_dump_thread_locked = $etp_lc_dump_thread_locked->next
+ end
+ set $etp_lc_dump_thread = $etp_lc_dump_thread->next
+ end
+end
+
+document etp-lc-dump
+%---------------------------------------------------------------------------
+% etp-lc-dump
+%
+% Dump all info about locks in the lock checker
+%---------------------------------------------------------------------------
+end
+
+define etp-ppc-stacktrace
+# Args: R1
+# Non-reentrant
+ set $etp_ppc_st_fp = ($arg0)
+ while $etp_ppc_st_fp
+ info symbol ((void**)$etp_ppc_st_fp)[1]
+ set $etp_ppc_st_fp = ((void**)$etp_ppc_st_fp)[0]
+ end
+end
+
+document etp-ppc-stacktrace
+%---------------------------------------------------------------------------
+% etp-ppc-stacktrace R1
+%
+% Dump stacktrace from given $r1 frame pointer
+%---------------------------------------------------------------------------
+end
############################################################################
# OSE support