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authorYao Qi <yao.qi@linaro.org>2016-12-06 14:25:51 +0000
committerYao Qi <yao.qi@linaro.org>2016-12-06 14:25:51 +0000
commit7c2ba67e6ab10879968c938aefd4d0d0b4ce79bc (patch)
treef654ea7bb52fc5b536c17d212c6065ba2704932c /gdb/value.c
parent5e359a63b7a39e0ff0f750ca8fc97d27b14c0ef7 (diff)
downloadbinutils-gdb-7c2ba67e6ab10879968c938aefd4d0d0b4ce79bc.tar.gz
Assert on lval_register
This patch adds asserts where the value's lval must be lval_register. This triggers an error in frame_register_unwind because VALUE_REGNUM is used but value's lval is not lval_register. This also reveals a design issue in frame_register_unwind, that is arguments addrp and realnump are mutually exclusive, we either use addrp (for lval_memory), or use realnump (for lval_register). This can be done in a separate patch. gdb: 2016-12-06 Yao Qi <yao.qi@linaro.org> * frame.c (frame_register_unwind): Set *realnump if *lvalp is lval_register. * value.c (deprecated_value_next_frame_id_hack): Assert value->lval is lval_register. (deprecated_value_regnum_hack): Likewise.
Diffstat (limited to 'gdb/value.c')
-rw-r--r--gdb/value.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gdb/value.c b/gdb/value.c
index cc291cf7d95..022900ff73c 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -1576,12 +1576,14 @@ deprecated_value_internalvar_hack (struct value *value)
struct frame_id *
deprecated_value_next_frame_id_hack (struct value *value)
{
+ gdb_assert (value->lval == lval_register);
return &value->location.reg.next_frame_id;
}
int *
deprecated_value_regnum_hack (struct value *value)
{
+ gdb_assert (value->lval == lval_register);
return &value->location.reg.regnum;
}