FreeCalypso > hg > freecalypso-tools
view target-utils/include/halt.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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/* * In some error cases in our loadagent code we have no better course * of action available than to halt in a tight loop. We define _exit() * to do the latter. We have defined some codes for the argument value * that goes into R0; if you manage to hook up JTAG and get it to work, * you might be able to see what went wrong. */ #define HALTCODE_MAINEXITED 0x40 #define HALTCODE_INVALIDUART 0x41 #define HALTCODE_BOOTROMVER 0x42