2004-11-04 Vangelis Rokas <vrokas AT otenet.gr>

2004-11-04 Vangelis Rokas <vrokas AT otenet.gr>

* src/pic16/main.c (options): added command line --gstack, to trace
stack over/under flows,
* added pragma 'wparam' to allow passing first byte of function
parameters via WREG, syntax is #pragma wparam my_function[, func2...]
* src/pic16/gen.c (pic16_testStackOverflow): function which emits a
call to __gstack_test function and sets up the symbol as extern,
* (pic16_pushpCodeOp, pic16_poppCodeOp, pushw, pushaop, popaopidx,
* popaop): added call to pic16_testStackOverflow,
* (wParamCmp, inWparamList): NEW, test existence of a symbol in
wparamList list,
* (genCall, genPcall): now all parameters are passed via stack
except in functions that are pass to wparam pragma in which WREG is
used too,
* (genPcall): REENTRANT flag is checked to see if variable prototype
contains reentrant keyword, don't call a non-reentrant function, via
a reentrant function pointer or vice versa, functions are never
passed via WREG,
* (genJumpTab): applied patch from bug #1057478 by R.Neider and
D.Winkler,
* src/pic16/glue.c (pic16emitRegularMap): fixed bug which caused a
SIGSEGV when accessing a NULL register stucture,
* (pic16_printGPointerType): modified to handle UPPER modifier for
function initializers, changed prototype of function to simpler one,
* (pic16_printIvalFuncPtr): check to see if function is already
added in externs list,
* src/pic16/pcoderegs.c (pCodeOptime2pCodes): fixed bug which
optimized a move from W to SFR with a move to the same register
later after a CALL,
* device/lib/pic16/debug: NEW directory, contains debug features
which are enabled when linking with libdebug.lib, currently command
line option --gstack enables stack pointer tracing for over/under
flow, corresponding sources are in debug/gstack

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3564 4a8a32a2-be11-0410-ad9d-d568d2c75423