It was observed that getty crashes on RISC-V 64-bit target, with the
busybox binary compiled by clang/LLVM 17 with -O2. Not only getty,
but also some other applets like syslogd/vi are broken too.
Commit 5156b245 ("Make const ptr assign as function call in clang")
introduced XZALLOC_CONST_PTR() to defeat the compiler optimization,
however it only fixed a small number of broken places when compiling
busybox with clang/LLVM. A large number of places remain broken.
This commit treats ASSIGN_CONST_PTR() the same way as XZALLOC_CONST_PTR().
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
- This can act as memory barrier in clang to avoid
read before assign of a const ptr
Signed-off-by: LoveSy <shana@zju.edu.cn>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
