Replace ILLD intrinsics (__swap, __ld32, __cmpAndSwap) with inline
assembly functions (tricore_atomic_swap, tricore_atomic_cmpswap) to
remove the dependency on IfxCpu_Intrinsics.h.
Also fix the expect parameter type to use volatile void * to match
the declaration in atomic.h, avoiding type conflicts.
Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
The reason for using builtin atomic is that in C++, when include <atomic> in <nuttx/atomic.h> easily conflicts with third-party function libraries. We wanted to completely separate the implementation of <nuttx/atomic.h>.
There are two points:
1. use builtin function directly.
2. Without the standard library implementation, need implement "atomic_fetch_xxx", leading conflicts with the standard library used by third-party programs, introducing redefinition issues and requiring name changes.
Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
Refine the atomic Kconfig to support multiple backends:
LIBC_ATOMIC_TOOLCHAIN (compiler builtins), LIBC_ATOMIC_ARCH (arch
instructions), and LIBC_ATOMIC_IRQ (interrupt disable). Rename
arch_atomic.c to arch_atomic_irq.c since it supports the IRQ backend.
Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
Tricore gcc does not support atomic interface but some users need to
use atomic operations, so support atomic function using tricore arch
instructions (__cmpAndSwap/__swap/__ld32).
Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
1. The original method of restoring the register context relies on
the ret instruction, which does not conform to the semantics of
longjmp not returning.
2. There are csa leak during longjmp and need recycle.
Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
Add setjmp/longjmp support for TriCore architecture using iLLD
intrinsics to save and restore the CSA (Context Save Area) chain.
This implementation saves upper/lower context registers and walks
the CSA linked list to restore the full call context on longjmp.
Signed-off-by: zhangyuan29 <zhangyuan29@xiaomi.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
