FreeCalypso > hg > freecalypso-tools
view target-utils/include/rtc.h @ 965:2969032bdfac
fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing
The only 100% safe way to pass a NULL pointer as a function argument
in K&R C is to cast 0 to a pointer type; failing to do so may cause
mysterious bugs (invalid stack frames or garbage in argument registers)
on 64-bit machines. This issue has already been fixed in most of
FC host tools, but I just found some missed spots: passing of NULL UDH
to PDU encoding functions in fcup-smsend[mult] in the case of single
(not concatenated) SMS.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 01 Sep 2023 07:33:51 +0000 |
| parents | e7502631a0f9 |
| children |
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/* Calypso RTC registers */ #ifndef __CALYPSO_RTC_H #define __CALYPSO_RTC_H #include "types.h" #define RTC_REGS_BASE 0xFFFE1800 struct rtctime { u8 seconds; u8 minutes; u8 hours; u8 day_of_month; u8 month; u8 year; u8 day_of_week; u8 pad; }; struct rtcregs { struct rtctime rtc_cur; struct rtctime rtc_alarm; u8 rtc_ctrl_reg; u8 rtc_status_reg; u8 rtc_int_reg; u8 rtc_comp_lsb_reg; u8 rtc_comp_msb_reg; u8 rtc_res_prog_reg; }; #define RTC_REGS (*(volatile struct rtcregs *) RTC_REGS_BASE) #endif /* include guard */