[committed,gdb/testsuite] Fix info-types.exp with gcc/g++ 4.8
Commit Message
Hi,
The gdb.base/info-types.exp test-case FAILs with gcc/g++ 4.8 because the DWARF
record for the 'unsigned int' type is missing in the executables, while it is
present for gcc/g++ 7.4.1.
For a minimal example using gcc 7.4.1:
...
$ echo "enum enum_t { AA, BB, CC }; enum enum_t var;" > enum.c
$ gcc enum.c -c -g
...
we find that the enum type has DW_AT_encoding 'unsigned':
<1><1d>: Abbrev Number: 2 (DW_TAG_enumeration_type)
<1e> DW_AT_name : (indirect string, offset: 0x1f): enum_t
<22> DW_AT_encoding : 7 (unsigned)
<23> DW_AT_byte_size : 4
<24> DW_AT_type : <0x3e>
<28> DW_AT_decl_file : 1
<29> DW_AT_decl_line : 1
<2a> DW_AT_sibling : <0x3e>
...
and a DW_AT_type reference to the type 'unsigned int':
...
<1><3e>: Abbrev Number: 4 (DW_TAG_base_type)
<3f> DW_AT_byte_size : 4
<40> DW_AT_encoding : 7 (unsigned)
<41> DW_AT_name : (indirect string, offset: 0x26): unsigned int
...
With gcc 4.8.5 however, we have no 'unsigned' encoding, and no DW_AT_type:
...
<1><1d>: Abbrev Number: 2 (DW_TAG_enumeration_type)
<1e> DW_AT_name : (indirect string, offset: 0x1f): enum_t
<22> DW_AT_byte_size : 4
<23> DW_AT_decl_file : 1
<24> DW_AT_decl_line : 1
<25> DW_AT_sibling : <0x39>
...
as well as no record for 'unsigned int'.
Make the test-case pass with gcc/g++ 4.8 by making the presence of the
'unsigned int' type optional.
Tested on x86_64-linux.
Committed to trunk.
Thanks,
- Tom
[gdb/testsuite] Fix info-types.exp with gcc/g++ 4.8
gdb/testsuite/ChangeLog:
2019-10-03 Tom de Vries <tdevries@suse.de>
PR testsuite/25059
* gdb.base/info-types.exp: Make the presence of the 'unsigned int'
type optional.
---
gdb/testsuite/gdb.base/info-types.exp | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
@@ -85,8 +85,8 @@ proc run_test { lang } {
"39:\[\t \]+typedef enum_t nested_enum_t;" \
"19:\[\t \]+typedef float nested_float_t;" \
"18:\[\t \]+typedef int nested_int_t;" \
- "62:\[\t \]+typedef union_t nested_union_t;" \
- "\[\t \]+unsigned int(" \
+ "62:\[\t \]+typedef union_t nested_union_t;(" \
+ "\[\t \]+unsigned int)?(" \
"" \
"File .*:.*)?" ]
} else {
@@ -117,8 +117,8 @@ proc run_test { lang } {
"19:\[\t \]+typedef float nested_float_t;" \
"18:\[\t \]+typedef int nested_int_t;" \
"62:\[\t \]+typedef union union_t nested_union_t;" \
- "56:\[\t \]+union union_t;" \
- "\[\t \]+unsigned int(" \
+ "56:\[\t \]+union union_t;(" \
+ "\[\t \]+unsigned int)?(" \
"" \
"File .*:.*)?" ]
}