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| author | Tom de Vries <tdevries@suse.de> | 2021-10-07 18:00:08 +0200 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2021-10-07 18:00:08 +0200 |
| commit | 22589c4996243528979e5815dfbb5a46cbd419a0 (patch) | |
| tree | f0c4231e6aabdf00405ddf4d33d4d4e4c9e0f52e /gdb | |
| parent | cd3f655cc7a55437a05aa8e7b1fcc9051b5fe404 (diff) | |
| download | gdb-22589c4996243528979e5815dfbb5a46cbd419a0.zip gdb-22589c4996243528979e5815dfbb5a46cbd419a0.tar.gz gdb-22589c4996243528979e5815dfbb5a46cbd419a0.tar.bz2 | |
[gdb/testsuite] Fix gdb.guile/scm-type.exp with gcc 4.8
With gcc 7.5.0, I get:
...
(gdb) guile (print (type-range (field-type (type-field (value-type \
(value-dereference f)) "items"))))^M
= (0 0)^M
(gdb) PASS: gdb.guile/scm-type.exp: lang_cpp: test_range: \
on flexible array member: $cmd
...
but with gcc 4.8.5, I get instead:
...
(gdb) guile (print (type-range (field-type (type-field (value-type \
(value-dereference f)) "items"))))^M
= (0 -1)^M
(gdb) FAIL: gdb.guile/scm-type.exp: lang_cpp: test_range: \
on flexible array member: $cmd
...
There's a difference in debug info. With gcc 4.8.5, we have:
...
<2><224>: Abbrev Number: 15 (DW_TAG_member)
<225> DW_AT_name : items
<22b> DW_AT_type : <0x231>
<1><231>: Abbrev Number: 4 (DW_TAG_array_type)
<232> DW_AT_type : <0x105>
<2><23a>: Abbrev Number: 16 (DW_TAG_subrange_type)
<23b> DW_AT_type : <0x11a>
<23f> DW_AT_upper_bound : 0xffffffffffffffff
...
and with gcc 7.5.0, we have instead:
...
<2><89f>: Abbrev Number: 12 (DW_TAG_member)
<8a0> DW_AT_name : items
<8a6> DW_AT_type : <0x8ac>
<1><8ac>: Abbrev Number: 17 (DW_TAG_array_type)
<8ad> DW_AT_type : <0x29d>
<2><8b5>: Abbrev Number: 41 (DW_TAG_subrange_type)
<2><8b6>: Abbrev Number: 0
...
As mentioned in commit 858c8f2c1b9 "gdb/testsuite: adjust
gdb.python/flexible-array-member.exp expected pattern":
...
Ideally, GDB would present a consistent and documented value for an
array member declared with size 0, regardless of how the debug info
looks like.
...
As in gdb.python/flexible-array-member.exp, change the test to accept the two
values.
Tested on x86_64-linux.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/testsuite/gdb.guile/scm-type.exp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gdb/testsuite/gdb.guile/scm-type.exp b/gdb/testsuite/gdb.guile/scm-type.exp index ccde98c..e5eaab3 100644 --- a/gdb/testsuite/gdb.guile/scm-type.exp +++ b/gdb/testsuite/gdb.guile/scm-type.exp @@ -267,7 +267,7 @@ proc test_range {} { gdb_scm_test_silent_cmd "guile (define f (history-ref 0))" \ "get value (f) from history" gdb_test "guile (print (type-range (field-type (type-field (value-type (value-dereference f)) \"items\"))))" \ - "= \\(0 0\\)" + "= \\(0 (0|-1)\\)" gdb_test "guile (print (value-subscript (value-field (value-dereference f) \"items\") 0))" \ "= 111" gdb_test "guile (print (value-subscript (value-field (value-dereference f) \"items\") 1))" \ |