diff options
author | Tom de Vries <tdevries@suse.de> | 2022-08-05 08:09:57 +0200 |
---|---|---|
committer | Tom de Vries <tdevries@suse.de> | 2022-08-05 08:09:57 +0200 |
commit | 731d2cc1d5106c077584bd83e96dbba4f7e11118 (patch) | |
tree | f76ffb66c77d08c5ac0840ac459435fa7b69a4d9 | |
parent | 701821154b110230f52a0367e120ecc51f490e56 (diff) |
[gdb] Add debug_{exp,val}linaro-local/ci/tcwg_kernel/llvm-master-arm-next-allmodconfiglinaro-local/ci/tcwg_kernel/llvm-master-aarch64-lts-allmodconfiglinaro-local/ci/tcwg_kernel/gnu-master-arm-lts-allyesconfiglinaro-local/ci/tcwg_kernel/gnu-master-aarch64-stable-allnoconfiglinaro-local/ci/tcwg_bmk_llvm_fx/llvm-master-aarch64-spec2k6-O2
When debugging cc1 I heavily rely on simple one-parameter debug functions
that allow me to inspect a variable of a common type, like:
- debug_generic_expr
- debug_gimple_stmt
- debug_rtx
and I miss similar functions in gdb.
Add functions to dump variables of types 'value' and 'expression':
- debug_exp, and
- debug_val.
Tested on x86_64-linux, by breaking on varobj_create, and doing:
...
(gdb) call debug_exp (var->root->exp.get ())
&"Operation: OP_VAR_VALUE\n"
&" Block symbol:\n"
&" Symbol: aaa\n"
&" Block: 0x2d064f0\n"
(gdb)
...
and:
...
(gdb) call debug_val (value)
&"5"
(gdb)
...
-rw-r--r-- | gdb/expprint.c | 13 | ||||
-rw-r--r-- | gdb/valprint.c | 12 | ||||
-rw-r--r-- | gdbsupport/common-defs.h | 6 |
3 files changed, 31 insertions, 0 deletions
diff --git a/gdb/expprint.c b/gdb/expprint.c index cef6ffb356..8534d2ac44 100644 --- a/gdb/expprint.c +++ b/gdb/expprint.c @@ -65,6 +65,19 @@ dump_prefix_expression (struct expression *exp, struct ui_file *stream) exp->op->dump (stream, 0); } +/* Meant to be used in debug sessions, so don't export it in a header file. */ +extern void ATTRIBUTE_USED debug_exp (struct expression *exp); + +/* Print EXP. */ + +void +ATTRIBUTE_USED +debug_exp (struct expression *exp) +{ + exp->op->dump (gdb_stdlog, 0); + gdb_flush (gdb_stdlog); +} + namespace expr { diff --git a/gdb/valprint.c b/gdb/valprint.c index f873e12d0c..3ad4c0cd35 100644 --- a/gdb/valprint.c +++ b/gdb/valprint.c @@ -1190,6 +1190,18 @@ value_print (struct value *val, struct ui_file *stream, current_language->value_print (val, stream, options); } +/* Meant to be used in debug sessions, so don't export it in a header file. */ +extern void ATTRIBUTE_UNUSED debug_val (struct value *val); + +/* Print VAL. */ + +void ATTRIBUTE_UNUSED +debug_val (struct value *val) +{ + value_print (val, gdb_stdlog, &user_print_options); + gdb_flush (gdb_stdlog); +} + static void val_print_type_code_flags (struct type *type, struct value *original_value, int embedded_offset, struct ui_file *stream) diff --git a/gdbsupport/common-defs.h b/gdbsupport/common-defs.h index eed364a48c..e4985332e3 100644 --- a/gdbsupport/common-defs.h +++ b/gdbsupport/common-defs.h @@ -191,6 +191,12 @@ #define ATTRIBUTE_UNUSED_RESULT #endif +#if (GCC_VERSION > 4000) +#define ATTRIBUTE_USED __attribute__ ((__used__)) +#else +#define ATTRIBUTE_USED +#endif + #include "libiberty.h" #include "pathmax.h" #include "gdb/signals.h" |