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[gdb/testsuite] Add KFAIL for PR ada/30908

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With gcc 13.2.1, I run into a cluster of fails:
...
FAIL: gdb.ada/str_binop_equal.exp: print my_str = "ABCD"
FAIL: gdb.ada/widewide.exp: print my_wws = " helo"
FAIL: gdb.ada/widewide.exp: print my_ws = "wide"
...

The problem is that the debug info contains information about function
ada.strings.maps."=", and gdb uses it to implement the comparison.
The function is supposed to compare two char sets, not strings, so gdb
shouldn't use it.  This is PR ada/30908.

I don't see the same problem with gcc 7.5.0, because the exec doesn't contain
the debug info for the function, because the corresponding object is not
linked in.  Adter adding "with Ada.Strings.Maps; use Ada.Strings.Maps;" to
gdb.ada/widewide/foo.adb I run into the same problem with gcc 7.5.0.

Add KFAILs for the PR.

Tested on x86_64-linux:
- openSUSE Leap 15.4 (using gcc 7.5.0), and
- openSUSE Tumbleweed (using gcc 13.2.1).

Approved-By: Tom Tromey <tom@tromey.com>

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30908
This commit is contained in:
Tom de Vries 2023-10-02 19:48:21 +02:00
parent 59912fb2d2
commit 89238cfdba
2 changed files with 44 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
gdb/testsuite/gdb.ada/str_binop_equal.exp
View File

@ -31,8 +31,24 @@ runto "foo_p211_061.adb:$bp_location"
gdb_test "print my_str = my_str" \
" = true"
gdb_test "print my_str = \"ABCD\"" \
" = true"
set kfail_re \
[multi_line \
[string_to_regexp {Symbol: ada.strings.maps."="}] \
".*" \
"\\$$decimal = false"]
gdb_test_no_output "set debug expr 1"
gdb_test_multiple {print my_str = "ABCD"} "" {
-re -wrap " = true" {
pass $gdb_test_name
}
-re -wrap $kfail_re {
kfail ada/30908 $gdb_test_name
}
}
gdb_test "set debug expr 0"
gdb_test "print my_str = \"EFGH\"" \
" = false"

28
gdb/testsuite/gdb.ada/widewide.exp
View File

@ -42,9 +42,33 @@ gdb_test "print my_wws(1)" "= 32 ' '"
gdb_test "print my_wws(2)" "= 104 'h'"
gdb_test "print my_wws = \" helo\"" " = true"
set kfail_re \
[multi_line \
[string_to_regexp {Symbol: ada.strings.maps."="}] \
".*" \
"\\$$decimal = false"]
gdb_test_no_output "set debug expr 1"
gdb_test_multiple {print my_wws = " helo"} "" {
-re -wrap " = true" {
pass $gdb_test_name
}
-re -wrap $kfail_re {
kfail ada/30908 $gdb_test_name
}
}
gdb_test_multiple {print my_ws = "wide"} "" {
-re -wrap " = true" {
pass $gdb_test_name
}
-re -wrap $kfail_re {
kfail ada/30908 $gdb_test_name
}
}
gdb_test "set debug expr 0"
gdb_test "print my_ws = \"wide\"" " = true"
gdb_test "print my_ws = \"nope\"" " = false"
gdb_test "print \"x\" & my_ws & \"y\"" " = \"xwidey\""