diff options
Diffstat (limited to 'arch/xtensa/include/asm/asmmacro.h')
| -rw-r--r-- | arch/xtensa/include/asm/asmmacro.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/asmmacro.h b/arch/xtensa/include/asm/asmmacro.h index 8308a9c3abb2..71a7e846bc1f 100644 --- a/arch/xtensa/include/asm/asmmacro.h +++ b/arch/xtensa/include/asm/asmmacro.h @@ -191,4 +191,50 @@ #endif .endm +#define XTENSA_STACK_ALIGNMENT 16 + +#if defined(__XTENSA_WINDOWED_ABI__) +#define XTENSA_FRAME_SIZE_RESERVE 16 +#define XTENSA_SPILL_STACK_RESERVE 32 + +#define abi_entry(frame_size) \ + entry sp, (XTENSA_FRAME_SIZE_RESERVE + \ + (((frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT)) +#define abi_entry_default abi_entry(0) + +#define abi_ret(frame_size) retw +#define abi_ret_default retw + +#elif defined(__XTENSA_CALL0_ABI__) + +#define XTENSA_SPILL_STACK_RESERVE 0 + +#define abi_entry(frame_size) __abi_entry (frame_size) + + .macro __abi_entry frame_size + .ifgt \frame_size + addi sp, sp, -(((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT) + .endif + .endm + +#define abi_entry_default + +#define abi_ret(frame_size) __abi_ret (frame_size) + + .macro __abi_ret frame_size + .ifgt \frame_size + addi sp, sp, (((\frame_size) + XTENSA_STACK_ALIGNMENT - 1) & \ + -XTENSA_STACK_ALIGNMENT) + .endif + ret + .endm + +#define abi_ret_default ret + +#else +#error Unsupported Xtensa ABI +#endif + #endif /* _XTENSA_ASMMACRO_H */ |