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[gdb/testsuite] Add gcc/94469 xfails to gdb.ada/call_pn.exp 

When running test-case gdb.ada/call_pn.exp with target board
unix/-flto/-O0/-flto-partition=none/-ffat-lto-objects, we run into:
...
(gdb) print last_node_id^M
Multiple matches for last_node_id^M
[0] cancel^M
[1] pck.last_node_id at gdb/testsuite/gdb.ada/call_pn/pck.adb:17^M
[2] pck.last_node_id at gdb/testsuite/gdb.ada/call_pn/foo.adb:17^M
> FAIL: gdb.ada/call_pn.exp: print last_node_id after calling pn (timeout)
...

This failure is due to a gcc bug that declares two instead of one symbols,
filed as PR gcc/94469.

Add an xfail at this test.  Also add a similar xfail at an earlier test, that
only triggers with -readnow.  Stabilize test results by making sure the
earlier xfail is always triggered, using "maint expand-symtabs".

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-04-08  Tom de Vries  <tdevries@suse.de>

	PR testsuite/25760
	* gdb.ada/call_pn.exp: Call "maint expand-symtabs".  Add xfails.
This commit is contained in:
Tom de Vries 2020-04-08 06:57:56 +02:00
parent cc9411f8dc
commit e21d048f8a
2 changed files with 52 additions and 3 deletions
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5
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2020-04-08 Tom de Vries <tdevries@suse.de>
PR testsuite/25760
* gdb.ada/call_pn.exp: Call "maint expand-symtabs". Add xfails.
2020-04-07 Tom de Vries <tdevries@suse.de>
PR symtab/25796

50
gdb/testsuite/gdb.ada/call_pn.exp
View File

@ -29,8 +29,41 @@ if ![runto "foo.adb:$bp_location" ] then {
return
}
# The xfail mentioned below triggers for the "after" print, but may not
# trigger for the "before" print, though it will for -readnow. This is
# related to PR25764 - "LOC_UNRESOLVED symbol missing from partial symtab".
# Stabilize test results by ensuring that the xfail triggers for the "before"
# print.
gdb_test_no_output "maint expand-symtabs"
# The xfail is for PR gcc/94469, which occurs with target board
# unix/-flto/-O0/-flto-partition=none/-ffat-lto-objects and gcc-8 and later.
# Note: We don't check for the filename in xfail_re because it might be
# wrong, filed as gdb PR25771.
set xfail_re \
[multi_line \
"Multiple matches for last_node_id" \
"\\\[0\\\] cancel" \
"\\\[1\\\] pck\.last_node_id at .*.adb:17" \
"\\\[2\\\] pck\.last_node_id at .*.adb:17" \
"> $"]
# Make sure that last_node_id is set to zero...
gdb_test "print last_node_id" "= 0" "print last_node_id before calling pn"
gdb_test_multiple "print last_node_id" "print last_node_id before calling pn" {
-re $xfail_re {
xfail $gdb_test_name
# One of the choices will print the correct value, the other one
# <optimized out>. Since we don't known which one to choose to get
# the correct value, cancel.
gdb_test_multiple "0" "cancel after xfail 1" {
-re -wrap "cancelled" {
}
}
}
-re -wrap "= 0" {
pass $gdb_test_name
}
}
# Now, call procedure Pn, which should set Last_Node_Id to the value
# of the parameter used in the function call. Verify that we can print
@ -38,5 +71,16 @@ gdb_test "print last_node_id" "= 0" "print last_node_id before calling pn"
gdb_test "print pn (4321)" "= 4321"
# Make sure that last_node_id now has the correct value...
gdb_test "print last_node_id" "= 4321" "print last_node_id after calling pn"
gdb_test_multiple "print last_node_id" "print last_node_id after calling pn" {
-re $xfail_re {
xfail $gdb_test_name
# Cancel
gdb_test_multiple "0" "cancel after xfail 2" {
-re -wrap "cancelled" {
}
}
}
-re -wrap "= 4321" {
pass $gdb_test_name
}
}