Update of bug #43828 (project avr-libc):
Status: None => In Progress
Assigned to: None => pitchumani
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Follow-up Comment #1:
Below is the patch to fix this issue.
diff --git a/avr-libc/include/avr/wdt.h b/avr-libc/include/avr/wdt.h
index fc15885..3130e67 100644
--- a/avr-libc/include/avr/wdt.h
+++ b/avr-libc/include/avr/wdt.h
@@ -148,25 +148,24 @@
*/
#define wdt_enable(timeout) \
do { \
-uint8_t temp = 0; \
+uint8_t temp; \
__asm__ __volatile__ ( \
"in __tmp_reg__, %[rampd]" "\n\t" \
"out %[rampd], __zero_reg__" "\n\t" \
"out %[ccp_reg], %[ioreg_cen_mask]" "\n\t" \
"sts %[wdt_reg], %[wdt_enable_timeout]" "\n\t" \
"1:lds %[tmp], %[wdt_status_reg]" "\n\t" \
- "sbrc %[tmp], %[wdt_syncbusy_bit]" "\n\t" \
+ "sbrc %[tmp], %[wdt_syncbusy_bit]" "\n\t" \
"rjmp 1b" "\n\t" \
"out %[rampd], __tmp_reg__" "\n\t" \
- : "=r" (temp) \
+ : [tmp] "=r" (temp) \
: [rampd] "M" (_SFR_MEM_ADDR(RAMPD)), \
[ccp_reg] "I" (_SFR_MEM_ADDR(CCP)), \
[ioreg_cen_mask] "r" ((uint8_t)CCP_IOREG_gc), \
[wdt_reg] "M" (_SFR_MEM_ADDR(WDT_CTRL)), \
[wdt_enable_timeout] "r" ((uint8_t)(WDT_CEN_bm | WDT_ENABLE_bm |
timeout)), \
[wdt_status_reg] "M" (_SFR_MEM_ADDR(WDT_STATUS)), \
- [wdt_syncbusy_bit] "I" (WDT_SYNCBUSY_bm), \
- [tmp] "r" (temp) \
+ [wdt_syncbusy_bit] "I" (WDT_SYNCBUSY_bm) \
: "r0" \
); \
} while(0)
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<http://savannah.nongnu.org/bugs/?43828>
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