diff options
Diffstat (limited to 'libc/sysdeps/linux/xtensa/sysdep.h')
| -rw-r--r-- | libc/sysdeps/linux/xtensa/sysdep.h | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/libc/sysdeps/linux/xtensa/sysdep.h b/libc/sysdeps/linux/xtensa/sysdep.h index 4873a413d..ce2b0a0d6 100644 --- a/libc/sysdeps/linux/xtensa/sysdep.h +++ b/libc/sysdeps/linux/xtensa/sysdep.h @@ -28,13 +28,24 @@ #define ASM_TYPE_DIRECTIVE(name, typearg) .type name, typearg #define ASM_SIZE_DIRECTIVE(name) .size name, . - name +#if defined(__XTENSA_WINDOWED_ABI__) +#define abi_entry(reg, frame_size) entry reg, frame_size +#define abi_ret retw +#elif defined(__XTENSA_CALL0_ABI__) +#define abi_entry(reg, frame_size) +#define abi_ret ret +#else +#error Unsupported Xtensa ABI +#endif + + #define ENTRY(name) \ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name), @function); \ .align ALIGNARG(2); \ LITERAL_POSITION; \ C_LABEL(name) \ - entry sp, FRAMESIZE; \ + abi_entry(sp, FRAMESIZE); \ CALL_MCOUNT #define HIDDEN_ENTRY(name) \ @@ -44,7 +55,7 @@ .align ALIGNARG(2); \ LITERAL_POSITION; \ C_LABEL(name) \ - entry sp, FRAMESIZE; \ + abi_entry(sp, FRAMESIZE); \ CALL_MCOUNT #undef END @@ -73,7 +84,13 @@ #endif #ifndef FRAMESIZE +#if defined(__XTENSA_WINDOWED_ABI__) #define FRAMESIZE 16 +#elif defined(__XTENSA_CALL0_ABI__) +#define FRAMESIZE 0 +#else +#error Unsupported Xtensa ABI +#endif #endif #define CALL_MCOUNT /* Do nothing. */ @@ -118,7 +135,7 @@ END (name) #undef ret_NOERRNO -#define ret_NOERRNO retw +#define ret_NOERRNO abi_ret /* The function has to return the error code. */ #undef PSEUDO_ERRVAL @@ -133,7 +150,7 @@ END (name) #undef ret_ERRVAL -#define ret_ERRVAL retw +#define ret_ERRVAL abi_ret #if defined _LIBC_REENTRANT # if defined USE___THREAD @@ -151,6 +168,8 @@ movi a2, -1; \ j .Lpseudo_end; # else /* !USE___THREAD */ + +#if defined(__XTENSA_WINDOWED_ABI__) # define SYSCALL_ERROR_HANDLER \ 0: neg a2, a2; \ mov a6, a2; \ @@ -159,6 +178,24 @@ s32i a2, a6, 0; \ movi a2, -1; \ j .Lpseudo_end; +#elif defined(__XTENSA_CALL0_ABI__) +# define SYSCALL_ERROR_HANDLER \ +0: neg a2, a2; \ + addi a1, a1, -16; \ + s32i a0, a1, 0; \ + s32i a2, a1, 4; \ + movi a0, __errno_location@PLT; \ + callx0 a0; \ + l32i a0, a1, 0; \ + l32i a3, a1, 4; \ + addi a1, a1, 16; \ + s32i a3, a2, 0; \ + movi a2, -1; \ + j .Lpseudo_end; +#else +#error Unsupported Xtensa ABI +#endif + # endif /* !USE___THREAD */ #else /* !_LIBC_REENTRANT */ #define SYSCALL_ERROR_HANDLER \ |