diff options
| -rw-r--r-- | Makefile.main | 5 | ||||
| -rw-r--r-- | libflash/ecc.c | 18 |
2 files changed, 19 insertions, 4 deletions
diff --git a/Makefile.main b/Makefile.main index 71bce5d..78bab2d 100644 --- a/Makefile.main +++ b/Makefile.main @@ -158,7 +158,6 @@ OBJS += $(LIBPORE) endif OBJS += $(LIBC) $(CCAN) $(DEVSRC_OBJ) OBJS_NO_VER = $(OBJS) -EXTRA_LIBS = -Wl,-lgcc ALL_OBJS = $(OBJS) version.o ALL_OBJS_1 = $(ALL_OBJS) asm/dummy_map.o @@ -168,12 +167,12 @@ $(TARGET).lid: $(TARGET).elf $(call Q,OBJCOPY, $(OBJCOPY) -O binary -S $^ $@, $@) $(TARGET).tmp.elf: $(ALL_OBJS_1) $(TARGET).lds $(KERNEL) - $(call Q,LD, $(CC) $(LDFLAGS) -T $(TARGET).lds $(ALL_OBJS_1) $(EXTRA_LIBS) -o $@, $@) + $(call Q,LD, $(CC) $(LDFLAGS) -T $(TARGET).lds $(ALL_OBJS_1) -o $@, $@) asm/real_map.o : $(TARGET).tmp.map $(TARGET).elf: $(ALL_OBJS_2) $(TARGET).lds $(KERNEL) - $(call Q,LD, $(CC) $(LDFLAGS) -T $(TARGET).lds $(ALL_OBJS_2) $(EXTRA_LIBS) -o $@, $@) + $(call Q,LD, $(CC) $(LDFLAGS) -T $(TARGET).lds $(ALL_OBJS_2) -o $@, $@) $(SUBDIRS): $(call Q,MKDIR,mkdir $@, $@) diff --git a/libflash/ecc.c b/libflash/ecc.c index 05c0e14..9cd6ad2 100644 --- a/libflash/ecc.c +++ b/libflash/ecc.c @@ -108,6 +108,22 @@ static enum eccbitfields syndromematrix[] = { UE, UE, UE, UE, 4, UE, UE, UE, UE, UE, UE, UE, UE, UE, UE, UE, }; +static uint8_t parity(uint64_t data) +{ +#ifdef __SKIBOOT__ + uint8_t p; + + asm volatile( + "popcntb %1,%0\n" + "prtyd %1,%1\n" + : "=r"(p) : "r"(data)); + + return p; +#else + return __builtin_parityl(data); +#endif +} + /** * Create the ECC field corresponding to a 8-byte data field * @@ -120,7 +136,7 @@ static uint8_t eccgenerate(uint64_t data) uint8_t result = 0; for (i = 0; i < 8; i++) - result |= __builtin_parityl(eccmatrix[i] & data) << i; + result |= parity(eccmatrix[i] & data) << i; return result; } |