diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/nds32/__builtin.c | 2 | ||||
| -rw-r--r-- | core/nds32/build.mk | 5 | ||||
| -rw-r--r-- | core/nds32/task.c | 5 |
3 files changed, 9 insertions, 3 deletions
diff --git a/core/nds32/__builtin.c b/core/nds32/__builtin.c index 45baa59aff..7b1d5eea62 100644 --- a/core/nds32/__builtin.c +++ b/core/nds32/__builtin.c @@ -10,7 +10,7 @@ * Returns one plus the index of the least significant 1-bit of x, * or if x is zero, returns zero. */ -int __ffssi2(int x) +int __keep __ffssi2(int x) { return 32 - __builtin_clz(x & -x); } diff --git a/core/nds32/build.mk b/core/nds32/build.mk index aee656ef93..db2a52d1b1 100644 --- a/core/nds32/build.mk +++ b/core/nds32/build.mk @@ -15,5 +15,10 @@ $(call set-option,CROSS_COMPILE,$(CROSS_COMPILE_nds32),$(NDS32_DEFAULT_COMPILE)) # CPU specific compilation flags CFLAGS_CPU+=-march=v3m -Os +ifneq ($(CONFIG_LTO),) +CFLAGS_CPU+=-flto +LDFLAGS_EXTRA+=-flto +endif + core-y=cpu.o init.o panic.o task.o switch.o __muldi3.o math.o __builtin.o core-$(CONFIG_FPU)+=__libsoftfpu.o diff --git a/core/nds32/task.c b/core/nds32/task.c index 54b7b5ed77..788f0c66bf 100644 --- a/core/nds32/task.c +++ b/core/nds32/task.c @@ -256,7 +256,8 @@ int get_sw_int(void) * * Also includes emulation of software triggering interrupt vector */ -void __ram_code syscall_handler(int desched, task_id_t resched, int swirq) +void __ram_code __keep syscall_handler(int desched, task_id_t resched, + int swirq) { /* are we emulating an interrupt ? */ if (swirq) { @@ -416,7 +417,7 @@ void end_irq_handler(void) #endif } -static uint32_t __wait_evt(int timeout_us, task_id_t resched) +static uint32_t __ram_code __wait_evt(int timeout_us, task_id_t resched) { task_ *tsk = current_task; task_id_t me = tsk - tasks; |