[06/11,gdb/macros] Handle v4 dwarf in gdb.base/fission-macro.exp
Checks
Context |
Check |
Description |
linaro-tcwg-bot/tcwg_gdb_build--master-aarch64 |
success
|
Testing passed
|
linaro-tcwg-bot/tcwg_gdb_build--master-arm |
success
|
Testing passed
|
linaro-tcwg-bot/tcwg_gdb_check--master-arm |
success
|
Testing passed
|
linaro-tcwg-bot/tcwg_gdb_check--master-aarch64 |
success
|
Testing passed
|
Commit Message
When running test-case gdb.base/fission-macro.exp with dwarf v4 enabled and a
gcc trunk build containing the fix for gcc PR debug/115066, we run into:
...
(gdb) info macro FIRST^M
Defined at /data/vries/gdb/src/gdb/testsuite/gdb.base/fission-macro.c:0^M
-DFIRST=1^M
(gdb) FAIL: gdb.base/fission-macro.exp: dwarf_version=4: dwarf_bits=32: \
strict_dwarf=0: info macro FIRST
...
The problem is in dwarf_decode_macros, where we're setting str_offsets_base
effectively to 8:
...
if (cu->per_cu->version () <= 4)
str_offsets_base = cu->header.addr_size;
...
Fix this by setting it to 0.
Tested on x86_64-linux.
Tested test-case (and gdb.base/fission-macro-i.exp) using a current gcc trunk
build and gcc 7-14.
---
gdb/dwarf2/read.c | 2 +-
gdb/testsuite/gdb.base/fission-macro-i.exp | 6 +++++-
gdb/testsuite/gdb.base/fission-macro.exp | 6 +++++-
3 files changed, 11 insertions(+), 3 deletions(-)
@@ -21259,7 +21259,7 @@ dwarf_decode_macros (struct dwarf2_cu *cu, unsigned int offset,
->sections.str_offsets;
str_section = &cu->dwo_unit->dwo_file->sections.str;
if (cu->per_cu->version () <= 4)
- str_offsets_base = cu->header.addr_size;
+ str_offsets_base = 0;
else
{
bfd *abfd = str_offsets_section->get_bfd_owner ();
@@ -65,7 +65,11 @@ proc do_tests { dwarf_version dwarf_bits strict_dwarf } {
gdb_test "info macro FOURTH" "#define FOURTH 4"
}
-foreach_with_prefix dwarf_version {5} {
+foreach_with_prefix dwarf_version {4 5} {
+ if { $dwarf_version == 4 && [gcc_major_version] < 15 } {
+ # Gcc does not contain fix for PR debug/115066.
+ continue
+ }
foreach_with_prefix dwarf_bits {32 64} {
foreach_with_prefix strict_dwarf {0 1} {
do_tests $dwarf_version $dwarf_bits $strict_dwarf
@@ -66,7 +66,11 @@ proc do_tests { dwarf_version dwarf_bits strict_dwarf } {
gdb_test "info macro FOURTH" "#define FOURTH 4"
}
-foreach_with_prefix dwarf_version {5} {
+foreach_with_prefix dwarf_version {4 5} {
+ if { $dwarf_version == 4 && [gcc_major_version] < 15 } {
+ # Gcc does not contain fix for PR debug/115066.
+ continue
+ }
foreach_with_prefix dwarf_bits {32 64} {
foreach_with_prefix strict_dwarf {0 1} {
do_tests $dwarf_version $dwarf_bits $strict_dwarf