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From: <sv...@va...> - 2012-03-25 17:52:06
|
bart 2012-03-25 18:51:59 +0100 (Sun, 25 Mar 2012)
New Revision: 12458
Log:
Check whether the big lock is held before invoking pre_thread_ll_create.
If the pre_thread_ll_create tracking function would be invoked without the
big lock being held, that would trigger a race condition in the tools that
implement this tracking function.
Modified files:
trunk/coregrind/m_scheduler/scheduler.c
trunk/coregrind/m_syswrap/syswrap-amd64-linux.c
trunk/coregrind/m_syswrap/syswrap-arm-linux.c
trunk/coregrind/m_syswrap/syswrap-darwin.c
trunk/coregrind/m_syswrap/syswrap-ppc32-linux.c
trunk/coregrind/m_syswrap/syswrap-ppc64-linux.c
trunk/coregrind/m_syswrap/syswrap-s390x-linux.c
trunk/coregrind/m_syswrap/syswrap-x86-linux.c
trunk/coregrind/pub_core_scheduler.h
Modified: trunk/coregrind/m_syswrap/syswrap-ppc64-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-ppc64-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-ppc64-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -363,6 +363,7 @@
know that this thread has come into existence. If the clone
fails, we'll send out a ll_exit notification for it at the out:
label below, to clean up. */
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/m_syswrap/syswrap-arm-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-arm-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-arm-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -228,6 +228,7 @@
ctst->client_stack_szB = 0;
}
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/m_syswrap/syswrap-x86-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-x86-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-x86-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -303,6 +303,7 @@
if we don't state the new thread exists prior to that point.
If the clone fails, we'll send out a ll_exit notification for it
at the out: label below, to clean up. */
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/m_syswrap/syswrap-amd64-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-amd64-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-amd64-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -289,6 +289,7 @@
know that this thread has come into existence. If the clone
fails, we'll send out a ll_exit notification for it at the out:
label below, to clean up. */
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/pub_core_scheduler.h (+3 -0)
===================================================================
--- trunk/coregrind/pub_core_scheduler.h 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/pub_core_scheduler.h 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -78,6 +78,9 @@
/* Matching function to acquire_BigLock_LL. */
extern void VG_(release_BigLock_LL) ( HChar* who );
+/* Whether the specified thread owns the big lock. */
+extern Bool VG_(owns_BigLock_LL) ( ThreadId tid );
+
/* Yield the CPU for a while. Drops/acquires the lock using the
normal (non _LL) functions. */
extern void VG_(vg_yield)(void);
Modified: trunk/coregrind/m_syswrap/syswrap-s390x-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-s390x-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-s390x-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -287,6 +287,7 @@
know that this thread has come into existence. If the clone
fails, we'll send out a ll_exit notification for it at the out:
label below, to clean up. */
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/m_scheduler/scheduler.c (+6 -0)
===================================================================
--- trunk/coregrind/m_scheduler/scheduler.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_scheduler/scheduler.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -326,7 +326,13 @@
ML_(release_sched_lock)(the_BigLock);
}
+Bool VG_(owns_BigLock_LL) ( ThreadId tid )
+{
+ return (ML_(get_sched_lock_owner)(the_BigLock)
+ == VG_(threads)[tid].os_state.lwpid);
+}
+
/* Clear out the ThreadState and release the semaphore. Leaves the
ThreadState in VgTs_Zombie state, so that it doesn't get
reallocated until the caller is really ready. */
Modified: trunk/coregrind/m_syswrap/syswrap-ppc32-linux.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-ppc32-linux.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-ppc32-linux.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -335,6 +335,7 @@
know that this thread has come into existence. If the clone
fails, we'll send out a ll_exit notification for it at the out:
label below, to clean up. */
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, ptid, ctid );
if (flags & VKI_CLONE_SETTLS) {
Modified: trunk/coregrind/m_syswrap/syswrap-darwin.c (+1 -0)
===================================================================
--- trunk/coregrind/m_syswrap/syswrap-darwin.c 2012-03-25 15:55:17 +01:00 (rev 12457)
+++ trunk/coregrind/m_syswrap/syswrap-darwin.c 2012-03-25 18:51:59 +01:00 (rev 12458)
@@ -6483,6 +6483,7 @@
// should be in pthread_hijack instead, just before the call to
// start_thread_NORETURN(), call_on_new_stack_0_1(), but we don't have the
// parent tid value there...
+ vg_assert(VG_(owns_BigLock_LL)(ptid));
VG_TRACK ( pre_thread_ll_create, tid, tst->tid );
}
|
|
From: <sv...@va...> - 2012-03-25 16:17:26
|
florian 2012-03-25 17:17:18 +0100 (Sun, 25 Mar 2012)
New Revision: 2267
Log:
Remove prototype for non-existing function.
Fix vpanic call.
Modified files:
trunk/priv/host_s390_defs.c
trunk/priv/host_s390_defs.h
Modified: trunk/priv/host_s390_defs.h (+0 -2)
===================================================================
--- trunk/priv/host_s390_defs.h 2012-03-21 19:36:37 +00:00 (rev 2266)
+++ trunk/priv/host_s390_defs.h 2012-03-25 17:17:18 +01:00 (rev 2267)
@@ -459,8 +459,6 @@
s390_insn *s390_insn_mfence(void);
s390_insn *s390_insn_gzero(UChar size, UInt offset);
s390_insn *s390_insn_gadd(UChar size, UInt offset, UChar delta, ULong value);
-UInt s390_insn_emit(UChar *buf, Int nbuf, const s390_insn *insn,
- void *dispatch);
const HChar *s390_insn_as_string(const s390_insn *);
Modified: trunk/priv/host_s390_defs.c (+1 -1)
===================================================================
--- trunk/priv/host_s390_defs.c 2012-03-21 19:36:37 +00:00 (rev 2266)
+++ trunk/priv/host_s390_defs.c 2012-03-25 17:17:18 +01:00 (rev 2267)
@@ -7284,7 +7284,7 @@
break;
default:
- vpanic("s390_insn_emit");
+ vpanic("emit_S390Instr");
}
vassert(end - buf <= nbuf);
|
|
From: <sv...@va...> - 2012-03-25 14:55:27
|
philippe 2012-03-25 15:55:17 +0100 (Sun, 25 Mar 2012)
New Revision: 12457
Log:
Remove strange e which appeared in r12456, replace by a real e.
Modified files:
trunk/Makefile.am
Modified: trunk/Makefile.am (+1 -1)
===================================================================
--- trunk/Makefile.am 2012-03-25 11:54:59 +01:00 (rev 12456)
+++ trunk/Makefile.am 2012-03-25 15:55:17 +01:00 (rev 12457)
@@ -66,7 +66,7 @@
cat $(DEFAULT_SUPP_FILES) >> default.supp
## Preprend @PERL@ because tests/vg_regtest isn't executable
-## Ensure make exits with error if PERL fails or check_mak蘯ケfile_consistency fails.
+## Ensure make exits with error if PERL fails or check_makefile_consistency fails.
regtest: check
gdbserver_tests/make_local_links $(GDB)
if @PERL@ tests/vg_regtest gdbserver_tests $(TOOLS) $(EXP_TOOLS) ; then \
|
|
From: <sv...@va...> - 2012-03-25 10:55:11
|
philippe 2012-03-25 11:54:59 +0100 (Sun, 25 Mar 2012)
New Revision: 12456
Log:
Have check_mak蘯ケfile_consistency run at the end of make regtest
This ensures that a missing file in the Makefile is detected,
without blocking the tests.
Modified files:
trunk/Makefile.am
Modified: trunk/Makefile.am (+7 -2)
===================================================================
--- trunk/Makefile.am 2012-03-21 20:32:00 +00:00 (rev 12455)
+++ trunk/Makefile.am 2012-03-25 11:54:59 +01:00 (rev 12456)
@@ -66,10 +66,15 @@
cat $(DEFAULT_SUPP_FILES) >> default.supp
## Preprend @PERL@ because tests/vg_regtest isn't executable
+## Ensure make exits with error if PERL fails or check_mak蘯ケfile_consistency fails.
regtest: check
- -tests/check_makefile_consistency gdbserver_tests $(TOOLS) $(EXP_TOOLS)
gdbserver_tests/make_local_links $(GDB)
- @PERL@ tests/vg_regtest gdbserver_tests $(TOOLS) $(EXP_TOOLS)
+ if @PERL@ tests/vg_regtest gdbserver_tests $(TOOLS) $(EXP_TOOLS) ; then \
+ tests/check_makefile_consistency gdbserver_tests $(TOOLS) $(EXP_TOOLS); \
+ else \
+ tests/check_makefile_consistency gdbserver_tests $(TOOLS) $(EXP_TOOLS); \
+ false; \
+ fi
nonexp-regtest: check
@PERL@ tests/vg_regtest $(TOOLS)
exp-regtest: check
|