target-alpha: Fix load-locked/store-conditional.
Use an exception plus start_exclusive to implement the compare-and-swap.
This follows the example set by the MIPS and PPC ports.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
index c397930..817504b 100644
--- a/target-alpha/cpu.h
+++ b/target-alpha/cpu.h
@@ -355,11 +355,13 @@
uint64_t ir[31];
float64 fir[31];
uint64_t pc;
- uint64_t lock;
uint32_t pcc[2];
uint64_t ipr[IPR_LAST];
uint64_t ps;
uint64_t unique;
+ uint64_t lock_addr;
+ uint64_t lock_st_addr;
+ uint64_t lock_value;
float_status fp_status;
/* The following fields make up the FPCR, but in FP_STATUS format. */
uint8_t fpcr_exc_status;
@@ -440,6 +442,8 @@
/* Pseudo exception for console */
EXCP_CONSOLE_DISPATCH = 0x4001,
EXCP_CONSOLE_FIXUP = 0x4002,
+ EXCP_STL_C = 0x4003,
+ EXCP_STQ_C = 0x4004,
};
/* Arithmetic exception */
