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Optional IPC logging

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This commit is contained in:
Erik van der Kouwe
2010-06-24 13:31:40 +00:00
parent 3985311b2e
commit fe07e7c984
9 changed files with 210 additions and 1 deletions
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87
kernel/debug.c
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@@ -7,6 +7,7 @@
#include "proc.h"
#include "debug.h"
#include <minix/callnr.h>
#include <minix/sysutil.h>
#include <limits.h>
#include <string.h>
@@ -234,3 +235,89 @@ PUBLIC void print_proc_recursive(struct proc *pp)
print_proc_depends(pp, 0);
}
#if DEBUG_DUMPIPC
PRIVATE const char *mtypename(int mtype, int iscall)
{
/* use generated file to recognize message types */
if (iscall) {
switch(mtype) {
#define IDENT(x) case x: return #x;
#include "extracted-mtype.h"
#undef IDENT(
}
} else {
switch(mtype) {
#define IDENT(x) case x: return #x;
#include "extracted-errno.h"
#undef IDENT(
}
}
/* no match */
return NULL;
}
PRIVATE void printparam(const char *name, const void *data, size_t size)
{
printf(" %s=", name);
switch (size) {
case sizeof(char): printf("%d", *(char *) data); break;
case sizeof(short): printf("%d", *(short *) data); break;
case sizeof(int): printf("%d", *(int *) data); break;
default: printf("(%u bytes)", size); break;
}
}
PRIVATE void printproc(struct proc *rp)
{
if (rp)
printf(" %s(%d)", rp->p_name, rp - proc);
else
printf(" kernel");
}
PRIVATE void printmsg(message *msg, struct proc *src, struct proc *dst,
char operation, int iscall, int printparams)
{
const char *name;
int mtype = msg->m_type;
/* source, destination and message type */
printf("%c", operation);
printproc(src);
printproc(dst);
name = mtypename(mtype, iscall);
if (name) {
printf(" %s(%d)", name, mtype);
} else {
printf(" %d", mtype);
}
if (iscall && printparams) {
#define IDENT(x, y) if (mtype == x) printparam(#y, &msg->y, sizeof(msg->y));
#include "extracted-mfield.h"
#undef IDENT
}
printf("\n");
}
PUBLIC void printmsgkcall(message *msg, struct proc *proc)
{
printmsg(msg, proc, NULL, 'k', 1, 1);
}
PUBLIC void printmsgkresult(message *msg, struct proc *proc)
{
printmsg(msg, NULL, proc, 'k', 0, 0);
}
PUBLIC void printmsgrecv(message *msg, struct proc *src, struct proc *dst)
{
printmsg(msg, src, dst, 'r', src->p_misc_flags & MF_REPLY_PEND, 0);
}
PUBLIC void printmsgsend(message *msg, struct proc *src, struct proc *dst)
{
printmsg(msg, src, dst, 's', src->p_misc_flags & MF_REPLY_PEND, 1);
}
#endif