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* [gcc r13-2958] Robustify DWARF2_UNWIND_INFO handling in vx-common.h
@ 2022-09-29 14:40 Olivier Hainque
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From: Olivier Hainque @ 2022-09-29 14:40 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:2813f529ab8df6daef739d996688caab615eb1a9
commit r13-2958-g2813f529ab8df6daef739d996688caab615eb1a9
Author: Olivier Hainque <hainque@adacore.com>
Date: Thu Mar 10 10:46:19 2022 +0000
Robustify DWARF2_UNWIND_INFO handling in vx-common.h
This adjusts vx-common.h to #define DWARF2_UNWIND_INFO to 0
when ARM_UNWIND_INFO is set, preventing defaults.h from
possibly setting DWARF2_UNWIND_INFO to 1 (as well) on its own
afterwards if the macro isn't defined.
2022-09-29 Olivier Hainque <hainque@adacore.com>
gcc/
* config/vx-common.h (DWARF2_UNWIND_INFO): #define to 0
when ARM_UNWIND_INFO is set.
Diff:
---
gcc/config/vx-common.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/gcc/config/vx-common.h b/gcc/config/vx-common.h
index bc27684375a..bf5823af6bf 100644
--- a/gcc/config/vx-common.h
+++ b/gcc/config/vx-common.h
@@ -74,7 +74,8 @@ along with GCC; see the file COPYING3. If not see
/* ---------------------- Debug and unwind info formats ------------------ */
/* Dwarf2 unwind info is supported, unless overriden by a request for a target
- specific format.
+ specific format. Always #define DWARF2_UNWIND_INFO to prevent defaults.h
+ from picking a possibly different value.
Taking care of this here allows using DWARF2_UNWIND_INFO in #if conditions
from the common config/vxworks.h files, included before the cpu
@@ -84,8 +85,10 @@ along with GCC; see the file COPYING3. If not see
#if point. Since <cpu>/vxworks.h. is typically included after
config/vxworks.h, #if expressions in the latter can't rely on possible
redefinitions in the former. */
-#if !ARM_UNWIND_INFO
#undef DWARF2_UNWIND_INFO
+#if ARM_UNWIND_INFO
+#define DWARF2_UNWIND_INFO 0
+#else
#define DWARF2_UNWIND_INFO 1
#endif
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2022-09-29 14:40 [gcc r13-2958] Robustify DWARF2_UNWIND_INFO handling in vx-common.h Olivier Hainque
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