Hi!
To highlight this issue again, http://gcc.gnu.org/PR55056, now that
Debian testing has switched to GCC 4.8:
On Sun, 3 Feb 2013 18:27:21 +0100, Jan Kratochvil jan.kratoch...@redhat.com
wrote:
gdb/testsuite/
2013-02-02 Jan Kratochvil jan.kratoch...@redhat.com
Workaround GCC PR debug/55056 and GDB PR server/15081.
* gdb.base/restore.c (caller3): Protect l1 by GCC_PR_55056 #ifdef.
(caller4): Protect l1 and l2 by GCC_PR_55056 #ifdef.
(caller5): Protect l1, l2 and l3 by GCC_PR_55056 #ifdef.
* gdb.base/restore.exp: New variable opts. Test caller3, caller4 and
caller5 for l1, l2 and l3. New prepare_for_testing.
* gdb.base/store.c (wack_longest, wack_float, wack_double)
(wack_doublest): Protect l and r by GCC_PR_55056 #ifdef.
* gdb.base/store.exp: New variable opts. Test longest, float, double
and doublest functions for l and r. New prepare_for_testing.
* gdb.trace/collection.c (reglocal_test_func): Protect locf and locd by
GCC_PR_55056 #ifdef. Protect locar by GDB_PR_15081 #ifdef.
* gdb.trace/unavailable.c: Likewise.
* gdb.trace/collection.exp: New variable opts. Test reglocal_test_func
for locf, locd and locar. New prepare_for_testing.
(gdb_collect_locals_test): Increase list size to 43.
* gdb.trace/unavailable.exp: Likewise.
As far as I can tell, no consensus has yet been reached about the
approach to fix this issue discussed in this thread. (I have not looked
at the proposed patch in detail.)
I had already been configuring my native GDB builds with CC=gcc-4.8
CXX=g++-4.8, and naively assumed the same compiler as specified on the
configure command-line would be used for the GDB testsuite -- which is
not true, as it now turns out. Is this to be considered a bug in the GDB
build/test harness?
Anyway, upon Debian testing/unstable just switching the default system
compiler from 4.7 to 4.8, the following new FAILs appear in my native x86
GNU/Linux and GNU/Hurd testing:
--- [...]/gdb.base2/gdb.sum
+++ [...]/gdb.base2/gdb.sum
@@ -1395,31 +1395,31 @@ PASS: gdb.base/restore.exp: run to caller3
PASS: gdb.base/restore.exp: caller3 calls callee1; tbreak callee
PASS: gdb.base/restore.exp: caller3 calls callee1; continue to callee
PASS: gdb.base/restore.exp: caller3 calls callee1; return callee now
-PASS: gdb.base/restore.exp: caller3 calls callee1; return restored l1 to
32492
+FAIL: gdb.base/restore.exp: caller3 calls callee1; return restored l1 to
32492
PASS: gdb.base/restore.exp: caller3 calls callee1; return restored l2 to
32493
PASS: gdb.base/restore.exp: caller3 calls callee1; return restored l3 to
32494
PASS: gdb.base/restore.exp: caller3 calls callee2; tbreak callee
PASS: gdb.base/restore.exp: caller3 calls callee2; continue to callee
PASS: gdb.base/restore.exp: caller3 calls callee2; return callee now
-PASS: gdb.base/restore.exp: caller3 calls callee2; return restored l1 to
32492
+FAIL: gdb.base/restore.exp: caller3 calls callee2; return restored l1 to
32492
PASS: gdb.base/restore.exp: caller3 calls callee2; return restored l2 to
32493
PASS: gdb.base/restore.exp: caller3 calls callee2; return restored l3 to
32494
PASS: gdb.base/restore.exp: caller3 calls callee3; tbreak callee
PASS: gdb.base/restore.exp: caller3 calls callee3; continue to callee
PASS: gdb.base/restore.exp: caller3 calls callee3; return callee now
-PASS: gdb.base/restore.exp: caller3 calls callee3; return restored l1 to
32492
+FAIL: gdb.base/restore.exp: caller3 calls callee3; return restored l1 to
32492
PASS: gdb.base/restore.exp: caller3 calls callee3; return restored l2 to
32493
PASS: gdb.base/restore.exp: caller3 calls callee3; return restored l3 to
32494
PASS: gdb.base/restore.exp: caller3 calls callee4; tbreak callee
PASS: gdb.base/restore.exp: caller3 calls callee4; continue to callee
PASS: gdb.base/restore.exp: caller3 calls callee4; return callee now
-PASS: gdb.base/restore.exp: caller3 calls callee4; return restored l1 to
32492
+FAIL: gdb.base/restore.exp: caller3 calls callee4; return restored l1 to
32492
PASS: gdb.base/restore.exp: caller3 calls callee4; return restored l2 to
32493
PASS: gdb.base/restore.exp: caller3 calls callee4; return restored l3 to
32494
PASS: gdb.base/restore.exp: caller3 calls callee5; tbreak callee
PASS: gdb.base/restore.exp: caller3 calls callee5; continue to callee
PASS: gdb.base/restore.exp: caller3 calls callee5; return callee now
-PASS: gdb.base/restore.exp: caller3 calls callee5; return restored l1 to
32492
+FAIL: gdb.base/restore.exp: caller3 calls callee5; return restored l1 to
32492
PASS: gdb.base/restore.exp: caller3 calls callee5; return restored l2 to
32493
PASS: gdb.base/restore.exp: caller3 calls callee5; return restored l3 to
32494
PASS: gdb.base/restore.exp:
