diff options
| author | Simon Marchi <simon.marchi@efficios.com> | 2021-04-16 11:01:26 -0400 |
|---|---|---|
| committer | Simon Marchi <simon.marchi@polymtl.ca> | 2021-04-16 11:02:32 -0400 |
| commit | 321d0cd7e78d6133cb0c607526c1f1fb380424ae (patch) | |
| tree | 5ee1d34a99527d8ef8c32243cc76477cee349285 /gdb | |
| parent | 100e914da3da936fa057edf85f16f407cf3d682b (diff) | |
| download | gdb-321d0cd7e78d6133cb0c607526c1f1fb380424ae.zip gdb-321d0cd7e78d6133cb0c607526c1f1fb380424ae.tar.gz gdb-321d0cd7e78d6133cb0c607526c1f1fb380424ae.tar.bz2 | |
gdb/testsuite: use -gdwarf-4 in simavr board
By default, when using the -g switch, avr-gcc generates stabs debug
information. I think it would make more sense to test GDB against DWARF
information, because stabs is obsolete by now, and nobody work on it.
So change the simavr board to pass -gdwarf-4 as the debug flag.
The downside is that users are probably more likely to use just -g, so
we don't test GDB the same way as users are likely to use it. But in
this case, if somebody comes and asks for help with GDB for AVR, I
suggest we encourage them to use -gdwarf-4.
I can't give stats about how that changes test results, because the
testsuite is too broken. There is an internal error that happens quite
frequently that needs to be investigated:
/home/simark/src/wt/avr/gdb/trad-frame.h:143: internal-error: LONGEST trad_frame_saved_reg::addr() const: Assertion `m_kind == trad_frame_saved_reg_kind::ADDR' failed.
I sent a question on the gcc mailing list, asking why stabs is the
default:
https://gcc.gnu.org/pipermail/gcc/2021-April/235309.html
gdb/testsuite/ChangeLog:
* boards/simavr.exp: Set debug_flags.
Change-Id: I70e471fad3a79ab1d79d13dda8436bb9eb666e0a
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/testsuite/boards/simavr.exp | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 9e490aa..212f2ae 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2021-04-16 Simon Marchi <simon.marchi@efficios.com> + + * boards/simavr.exp: Set debug_flags. + 2021-04-16 Luis Machado <luis.machado@linaro.org> * gdb.dwarf2/dw2-bfloat16.exp: New file. diff --git a/gdb/testsuite/boards/simavr.exp b/gdb/testsuite/boards/simavr.exp index c4f278c..0617733 100644 --- a/gdb/testsuite/boards/simavr.exp +++ b/gdb/testsuite/boards/simavr.exp @@ -44,6 +44,10 @@ set_board_info c++compiler avr-g++ set_board_info cflags "-mmcu=${simavr_mcu}" set_board_info ldflags "-mmcu=${simavr_mcu}" +# As of version 10, GCC produces stabs by default for AVR. Force it to use +# DWARF. +set_board_info debug_flags "-gdwarf-4" + set_board_info use_gdb_stub 1 set_board_info gdb_protocol "remote" set_board_info gdb,do_reload_on_run 1 |