diff options
Diffstat (limited to 'gcc/config/msp430/msp430.c')
| -rw-r--r-- | gcc/config/msp430/msp430.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/gcc/config/msp430/msp430.c b/gcc/config/msp430/msp430.c index e3f6712596a..b2d8953c0da 100644 --- a/gcc/config/msp430/msp430.c +++ b/gcc/config/msp430/msp430.c @@ -188,7 +188,7 @@ msp430_mcu_name (void) mcu_name[i] = TOUPPER (mcu_name[i]); return mcu_name; } - + return msp430x ? "__MSP430XGENERIC__" : "__MSP430GENERIC__"; } @@ -966,6 +966,12 @@ msp430_is_interrupt_func (void) return is_attr_func ("interrupt"); } +static bool +is_wakeup_func (void) +{ + return msp430_is_interrupt_func () && is_attr_func ("wakeup"); +} + static inline bool is_naked_func (void) { @@ -1005,6 +1011,8 @@ msp430_start_function (FILE *outfile, HOST_WIDE_INT hwi_local ATTRIBUTE_UNUSED) fprintf (outfile, "reentrant "); if (is_critical_func ()) fprintf (outfile, "critical "); + if (is_wakeup_func ()) + fprintf (outfile, "wakeup "); fprintf (outfile, "\n"); } @@ -1131,6 +1139,7 @@ const struct attribute_spec msp430_attribute_table[] = { "naked", 0, 0, true, false, false, msp430_attr, false }, { "reentrant", 0, 0, true, false, false, msp430_attr, false }, { "critical", 0, 0, true, false, false, msp430_attr, false }, + { "wakeup", 0, 0, true, false, false, msp430_attr, false }, { NULL, 0, 0, false, false, false, NULL, false } }; @@ -1409,6 +1418,14 @@ msp430_expand_epilogue (int is_eh) emit_insn (gen_epilogue_start_marker ()); + if (is_wakeup_func ()) + /* Clear the SCG1, SCG0, OSCOFF and CPUOFF bits in the saved copy of the + status register current residing on the stack. When this function + executes its RETI instruction the SR will be updated with this saved + value, thus ensuring that the processor is woken up from any low power + state in which it may be residing. */ + emit_insn (gen_bic_SR (GEN_INT (0xf0))); + fs = cfun->machine->framesize_locals + cfun->machine->framesize_outgoing; increment_stack (fs); @@ -1828,7 +1845,7 @@ msp430_output_labelref (FILE *file, const char *name) static void msp430_print_operand_raw (FILE * file, rtx op) { - int i; + HOST_WIDE_INT i; switch (GET_CODE (op)) { @@ -1839,9 +1856,9 @@ msp430_print_operand_raw (FILE * file, rtx op) case CONST_INT: i = INTVAL (op); if (TARGET_ASM_HEX) - fprintf (file, "%#x", i); + fprintf (file, "%#" HOST_WIDE_INT_PRINT "x", i); else - fprintf (file, "%d", i); + fprintf (file, "%" HOST_WIDE_INT_PRINT "d", i); break; case CONST: |