https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100316
Bug ID: 100316
Summary: Regression: __clear_cache() does not support
NULL-pointer arguments
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: christophm30 at gmail dot com
Target Milestone: ---
Commit c05ece9 changed __clear_cache () such, that it no longer accepts numeric
values as arguments.
In riscv-pk the following code is used to clear the instruction cache:
__clear_cache(0, 0);
However, this no longer compiles:
../pk/pk.c: In function 'run_loaded_program.constprop':
../pk/pk.c:177:3: error: both arguments to '__builtin___clear_cache'
must be pointers
177 | __clear_cache(0, 0);
| ^~~~~~~~~~~~~~~~~~~
Also using "NULL" or "(void*)0" does not help.
The corresponding bug ticket for PK can be found here:
https://github.com/riscv/riscv-pk/issues/239
Is there a chance to loosen the restrictions for the arguments?
