mtlr 0 ; \
#endif
-
+
+/* gas can't parse nnnnLU; redefine */
+#if BACKEND_PAGE_BYTES == 65536
+# undef BACKEND_PAGE_BYTES
+# define BACKEND_PAGE_BYTES 65536
+#elif BACKEND_PAGE_BYTES == 4096
+# undef BACKEND_PAGE_BYTES
+# define BACKEND_PAGE_BYTES 4096
+#else
+# error BACKEND_PAGE_BYTES mismatch
+#endif
+
+#ifdef LISP_FEATURE_SB_SAFEPOINT
+/* OAOOM because we don't have the C headers here. */
+# define THREAD_CSP_PAGE_SIZE 4096
+
+/* the CSP page sits right before the thread */
+# define THREAD_SAVED_CSP_OFFSET (-THREAD_CSP_PAGE_SIZE)
+#endif
+
.text
/*
andi. reg_NL3, reg_ALLOC, flag_PseudoAtomicInterrupted
twnei reg_NL3, 0
+#ifdef LISP_FEATURE_SB_SAFEPOINT
+ /* OK to run GC without stopping this thread from this point on. */
+ stw reg_CSP,THREAD_SAVED_CSP_OFFSET(reg_THREAD)
+#endif
+
mr reg_NL3,reg_NARGS
#ifdef LISP_FEATURE_DARWIN
#endif
li reg_LIP,0
+# ifdef LISP_FEATURE_SB_SAFEPOINT
+ /* No longer OK to run GC except at safepoints. */
+ stw reg_ZERO,THREAD_SAVED_CSP_OFFSET(reg_THREAD)
+# endif
+
/* Atomic ... */
li reg_ALLOC,flag_PseudoAtomic
twllei reg_ZERO,trap_Cerror
.byte 4
.byte UNDEFINED_FUN_ERROR
- .byte 254, sc_DescriptorReg+0x40, 1 /* 140? sparc says sc_descriptorReg */
+ .byte 254, sc_DescriptorReg+0x80, 0x2 /* 280 */
/* This stuff is for the continuable error. I don't think there's
* any support for it on the lisp side */
.align 2