tyler.durden/kernel
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add convenience switch to redirect debug output to COM port when building, update some debug prints to use our debug interface so print to COM port when enabled.

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This commit is contained in:
Kenneth J Davis 2025-03-28 10:22:13 -04:00
parent 192cccc68f
commit 634257b913
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GPG Key ID: 59D5F216C38F11FD
7 changed files with 35 additions and 53 deletions
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10
build.bat
View File

@ -6,8 +6,10 @@ if NOT "%1" == "/?" goto start
echo ":-----------------------------------------------------------------------" echo ":-----------------------------------------------------------------------"
echo ":- Syntax: BUILD [-r] [fat32|fat16] [msc|wc|tc|tcpp|bc] [86|186|386] " echo ":- Syntax: BUILD [-r] [fat32|fat16] [msc|wc|tc|tcpp|bc] [86|186|386] "
echo ":- [debug] [lfnapi] [/L #] [/D value] [list] [upx] [win] " echo ":- [debug] [lfnapi] [/L #] [/D value] [list] [upx] [win] "
echo ":- [com] [com# #] "
echo ":- option case is significant !! " echo ":- option case is significant !! "
echo ":- Note: Open Watcom (wc) is the preferred compiler " echo ":- Note: Open Watcom (wc) is the preferred compiler "
echo ":- com does debug output on COM2, whereas com# 0 for COM1 ... "
echo ":-----------------------------------------------------------------------" echo ":-----------------------------------------------------------------------"
goto end goto end
@ -56,6 +58,14 @@ if "%1" == "lfnapi" set ALLCFLAGS=%ALLCFLAGS% -DWITHLFNAPI
if "%1" == "win" set ALLCFLAGS=%ALLCFLAGS% -DWIN31SUPPORT if "%1" == "win" set ALLCFLAGS=%ALLCFLAGS% -DWIN31SUPPORT
if "%1" == "win" set NASMFLAGS=%NASMFLAGS% -DWIN31SUPPORT if "%1" == "win" set NASMFLAGS=%NASMFLAGS% -DWIN31SUPPORT
if "%1" == "com" set ALLCFLAGS=%ALLCFLAGS% -DDEBUG_PRINT_COMPORT
if "%1" == "com" set NASMFLAGS=%ALLCFLAGS% -DDEBUG_PRINT_COMPORT
REM specify comport, default is COM2, 0=COM1, 1=COM2, 2=COM3
if "%1" == "com#" set ALLCFLAGS=%ALLCFLAGS% -DDEBUG_PRINT_COMPORT %2
if "%1" == "com#" set NASMFLAGS=%ALLCFLAGS% -DDEBUG_PRINT_COMPORT %2
if "%1" == "com#" shift
if "%1" == "com#" goto nextOption
if "%1" == "list" set NASMFLAGS=%NASMFLAGS% -l$*.lst if "%1" == "list" set NASMFLAGS=%NASMFLAGS% -l$*.lst
if "%1" == "/L" goto setLoadSeg if "%1" == "/L" goto setLoadSeg

47
kernel/config.c
View File

@ -31,10 +31,6 @@
#include "init-mod.h" #include "init-mod.h"
#include "dyndata.h" #include "dyndata.h"
#ifdef VERSION_STRINGS
static BYTE *RcsId =
"$Id: config.c 1705 2012-02-07 08:10:33Z perditionc $";
#endif
#ifdef DEBUG #ifdef DEBUG
#define DebugPrintf(x) printf x #define DebugPrintf(x) printf x
@ -342,15 +338,9 @@ void PreConfig(void)
{ {
/* Initialize the base memory pointers */ /* Initialize the base memory pointers */
#ifdef DEBUG DebugPrintf(("SDA located at 0x%p\n", internal_data));
{
printf("SDA located at 0x%p\n", internal_data);
}
#endif
/* Begin by initializing our system buffers */ /* Begin by initializing our system buffers */
#ifdef DEBUG /* DebugPrintf(("Preliminary %d buffers allocated at 0x%p\n", Config.cfgBuffers, buffers));*/
/* printf("Preliminary %d buffers allocated at 0x%p\n", Config.cfgBuffers, buffers);*/
#endif
LoL->sfthead = MK_FP(FP_SEG(LoL), 0xcc); /* &(LoL->firstsftt) */ LoL->sfthead = MK_FP(FP_SEG(LoL), 0xcc); /* &(LoL->firstsftt) */
/* LoL->FCBp = (sfttbl FAR *)&FcbSft; */ /* LoL->FCBp = (sfttbl FAR *)&FcbSft; */
@ -362,18 +352,14 @@ void PreConfig(void)
LoL->CDSp = KernelAlloc(sizeof(struct cds) * LoL->lastdrive, 'L', 0); LoL->CDSp = KernelAlloc(sizeof(struct cds) * LoL->lastdrive, 'L', 0);
#ifdef DEBUG /* DebugPrintf((" FCB table 0x%p\n",LoL->FCBp));*/
/* printf(" FCB table 0x%p\n",LoL->FCBp);*/ DebugPrintf((" sft table 0x%p\n", LoL->sfthead));
printf(" sft table 0x%p\n", LoL->sfthead); DebugPrintf((" CDS table 0x%p\n", LoL->CDSp));
printf(" CDS table 0x%p\n", LoL->CDSp); DebugPrintf((" DPB table 0x%p\n", LoL->DPBp));
printf(" DPB table 0x%p\n", LoL->DPBp);
#endif
/* Done. Now initialize the MCB structure */ /* Done. Now initialize the MCB structure */
/* This next line is 8086 and 80x86 real mode specific */ /* This next line is 8086 and 80x86 real mode specific */
#ifdef DEBUG DebugPrintf(("Preliminary allocation completed: top at %p\n", lpTop));
printf("Preliminary allocation completed: top at %p\n", lpTop);
#endif
} }
/* Do second pass initialization: near allocation and MCBs */ /* Do second pass initialization: near allocation and MCBs */
@ -443,9 +429,7 @@ void PostConfig(void)
/* Begin by initializing our system buffers */ /* Begin by initializing our system buffers */
/* dma_scratch = (BYTE FAR *) KernelAllocDma(BUFFERSIZE); */ /* dma_scratch = (BYTE FAR *) KernelAllocDma(BUFFERSIZE); */
#ifdef DEBUG /* DebugPrintf(("DMA scratchpad allocated at 0x%p\n", dma_scratch)); */
/* printf("DMA scratchpad allocated at 0x%p\n", dma_scratch); */
#endif
config_init_buffers(Config.cfgBuffers); config_init_buffers(Config.cfgBuffers);
@ -462,12 +446,11 @@ void PostConfig(void)
LoL->CDSp = KernelAlloc(sizeof(struct cds) * LoL->lastdrive, 'L', Config.cfgLastdriveHigh); LoL->CDSp = KernelAlloc(sizeof(struct cds) * LoL->lastdrive, 'L', Config.cfgLastdriveHigh);
#ifdef DEBUG /* DebugPrintf((" FCB table 0x%p\n",LoL->FCBp));*/
/* printf(" FCB table 0x%p\n",LoL->FCBp);*/ DebugPrintf((" sft table 0x%p\n", LoL->sfthead->sftt_next));
printf(" sft table 0x%p\n", LoL->sfthead->sftt_next); DebugPrintf((" CDS table 0x%p\n", LoL->CDSp));
printf(" CDS table 0x%p\n", LoL->CDSp); DebugPrintf((" DPB table 0x%p\n", LoL->DPBp));
printf(" DPB table 0x%p\n", LoL->DPBp);
#endif
if (Config.cfgStacks) if (Config.cfgStacks)
{ {
VOID FAR *stackBase = VOID FAR *stackBase =
@ -1845,9 +1828,7 @@ STATIC BOOL LoadDevice(BYTE * pLine, char FAR *top, COUNT mode)
/* The device driver is paragraph aligned. */ /* The device driver is paragraph aligned. */
eb.load.reloc = eb.load.load_seg = base; eb.load.reloc = eb.load.load_seg = base;
#ifdef DEBUG DebugPrintf(("Loading device driver %s at segment %04x\n", szBuf, base));
printf("Loading device driver %s at segment %04x\n", szBuf, base);
#endif
if ((result = init_DosExec(3, &eb, szBuf)) != SUCCESS) if ((result = init_DosExec(3, &eb, szBuf)) != SUCCESS)
{ {

1
kernel/dosfns.c
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@ -34,6 +34,7 @@ static BYTE *dosfnsRcsId =
#endif #endif
#include "globals.h" #include "globals.h"
#include "debug.h"
/* /// Added for SHARE. - Ron Cemer */ /* /// Added for SHARE. - Ron Cemer */

20
kernel/error.c
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@ -27,24 +27,20 @@
/****************************************************************/ /****************************************************************/
#include "portab.h" #include "portab.h"
#ifdef VERSION_STRINGS
static BYTE *errorRcsId =
"$Id: error.c 709 2003-09-24 19:34:11Z bartoldeman $";
#endif
#include "globals.h" #include "globals.h"
#include "debug.h"
#ifdef DEBUG #ifdef DEBUG
/* error registers */ /* error registers */
VOID dump(void) VOID dump(void)
{ {
printf("Register Dump [AH = %02x CS:IP = %04x:%04x FLAGS = %04x]\n", DebugPrintf(("Register Dump [AH = %02x CS:IP = %04x:%04x FLAGS = %04x]\n",
error_regs.AH, error_regs.CS, error_regs.IP, error_regs.FLAGS); error_regs.AH, error_regs.CS, error_regs.IP, error_regs.FLAGS));
printf("AX:%04x BX:%04x CX:%04x DX:%04x\n", DebugPrintf(("AX:%04x BX:%04x CX:%04x DX:%04x\n",
error_regs.AX, error_regs.BX, error_regs.CX, error_regs.DX); error_regs.AX, error_regs.BX, error_regs.CX, error_regs.DX));
printf("SI:%04x DI:%04x DS:%04x ES:%04x\n", DebugPrintf(("SI:%04x DI:%04x DS:%04x ES:%04x\n",
error_regs.SI, error_regs.DI, error_regs.DS, error_regs.ES); error_regs.SI, error_regs.DI, error_regs.DS, error_regs.ES));
} }
#endif #endif

4
kernel/fatfs.c
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@ -29,10 +29,8 @@
#include "portab.h" #include "portab.h"
#include "globals.h" #include "globals.h"
#include "debug.h"
#ifdef VERSION_STRINGS
BYTE *RcsId = "$Id: fatfs.c 1632 2011-06-13 16:29:14Z bartoldeman $";
#endif
/* */ /* */
/* function prototypes */ /* function prototypes */

2
kernel/inthndlr.c
View File

@ -442,7 +442,7 @@ dispatch:
if (bDumpRegs) if (bDumpRegs)
{ {
fmemcpy(&error_regs, user_r, sizeof(iregs)); fmemcpy(&error_regs, user_r, sizeof(iregs));
printf("System call (21h): %02x\n", user_r->AX); DebugPrintf(("System call (21h): %02x\n", user_r->AX));
dump_regs = TRUE; dump_regs = TRUE;
dump(); dump();
} }

4
kernel/main.c
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@ -32,10 +32,6 @@
#include "dyndata.h" #include "dyndata.h"
#include "debug.h" #include "debug.h"
#ifdef VERSION_STRINGS
static BYTE *mainRcsId =
"$Id: main.c 1699 2012-01-16 20:45:44Z perditionc $";
#endif
static char copyright[] = static char copyright[] =
"(C) Copyright 1995-2023 Pasquale J. Villani and The FreeDOS Project.\n" "(C) Copyright 1995-2023 Pasquale J. Villani and The FreeDOS Project.\n"