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-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h64
1 files changed, 59 insertions, 5 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h
index f82957d15..02fe27869 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h
@@ -25,6 +25,7 @@
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+#if defined(__XTENSA_WINDOWED_ABI__)
/* CENABLE/CDISABLE in PSEUDO below use call8, stack frame size must be
* at least 32.
*/
@@ -58,6 +59,64 @@
j SYSCALL_ERROR_LABEL; \
.Lpseudo_end:
+# define CENABLE movi a8, CENABLE_FUNC; \
+ callx8 a8
+# define CDISABLE movi a8, CDISABLE_FUNC; \
+ callx8 a8
+#elif defined(__XTENSA_CALL0_ABI__)
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .text; \
+ ENTRY (name) \
+ SINGLE_THREAD_P(a10); \
+ bnez a10, .Lpseudo_cancel; \
+ DO_CALL (syscall_name, args); \
+ bgez a2, .Lpseudo_done; \
+ movi a4, -4095; \
+ blt a2, a4, .Lpseudo_done; \
+ j SYSCALL_ERROR_LABEL; \
+ .Lpseudo_done: \
+ ret; \
+ .Lpseudo_cancel: \
+ addi a1, a1, -32; \
+ /* The syscall args are in a2...a7; save them */ \
+ s32i a0, a1, 0; \
+ s32i a2, a1, 4; \
+ s32i a3, a1, 8; \
+ s32i a4, a1, 12; \
+ s32i a5, a1, 16; \
+ s32i a6, a1, 20; \
+ s32i a7, a1, 24; \
+ CENABLE; \
+ /* Move return value to a10 preserved across the syscall */ \
+ mov a10, a2; \
+ l32i a2, a1, 4; \
+ l32i a3, a1, 8; \
+ l32i a4, a1, 12; \
+ l32i a5, a1, 16; \
+ l32i a6, a1, 20; \
+ l32i a7, a1, 24; \
+ DO_CALL (syscall_name, args); \
+ s32i a2, a1, 4; \
+ mov a2, a10; \
+ CDISABLE; \
+ l32i a2, a1, 4; \
+ l32i a0, a1, 0; \
+ addi a1, a1, 32; \
+ bgez a2, .Lpseudo_end; \
+ movi a4, -4095; \
+ blt a2, a4, .Lpseudo_end; \
+ j SYSCALL_ERROR_LABEL; \
+ .Lpseudo_end:
+
+# define CENABLE movi a0, CENABLE_FUNC; \
+ callx0 a0
+# define CDISABLE movi a0, CDISABLE_FUNC; \
+ callx0 a0
+#else
+#error Unsupported Xtensa ABI
+#endif
# ifdef IS_IN_libpthread
# define CENABLE_FUNC __pthread_enable_asynccancel
@@ -74,11 +133,6 @@
# error Unsupported library
# endif
-# define CENABLE movi a8, CENABLE_FUNC; \
- callx8 a8
-# define CDISABLE movi a8, CDISABLE_FUNC; \
- callx8 a8
-
# if defined IS_IN_libpthread || !defined NOT_IN_libc
# ifndef __ASSEMBLER__
extern int __local_multiple_threads attribute_hidden;