minix/kernel/debug.h
Ben Gras 35a108b911 panic() cleanup.
this change
   - makes panic() variadic, doing full printf() formatting -
     no more NO_NUM, and no more separate printf() statements
     needed to print extra info (or something in hex) before panicing
   - unifies panic() - same panic() name and usage for everyone -
     vm, kernel and rest have different names/syntax currently
     in order to implement their own luxuries, but no longer
   - throws out the 1st argument, to make source less noisy.
     the panic() in syslib retrieves the server name from the kernel
     so it should be clear enough who is panicing; e.g.
         panic("sigaction failed: %d", errno);
     looks like:
         at_wini(73130): panic: sigaction failed: 0
         syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
   - throws out report() - printf() is more convenient and powerful
   - harmonizes/fixes the use of panic() - there were a few places
     that used printf-style formatting (didn't work) and newlines
     (messes up the formatting) in panic()
   - throws out a few per-server panic() functions
   - cleans up a tie-in of tty with panic()

merging printf() and panic() statements to be done incrementally.
2010-03-05 15:05:11 +00:00

91 lines
2.3 KiB
C

#ifndef DEBUG_H
#define DEBUG_H
/* This header file defines all debugging constants and macros, and declares
* some variables. Certain debugging features redefine standard constants
* and macros. Therefore, this header file should be included after the
* other kernel headers.
*/
#include <ansi.h>
#include <minix/debug.h>
#include "config.h"
/* Enable prints such as
* . send/receive failed due to deadlock or dead source or dead destination
* . trap not allowed
* . bogus message pointer
* . kernel call number not allowed by this process
*
* Of course the call still fails, but nothing is printed if these warnings
* are disabled.
*/
#define DEBUG_ENABLE_IPC_WARNINGS 1
#define DEBUG_STACKTRACE 1
#define DEBUG_TIME_LOCKS 1
/* Runtime sanity checking. */
#define DEBUG_VMASSERT 0
#define DEBUG_SCHED_CHECK 0
#define DEBUG_STACK_CHECK 0
#define DEBUG_TRACE 0
#if DEBUG_TRACE
#define VF_SCHEDULING (1L << 1)
#define VF_PICKPROC (1L << 2)
#define TRACE(code, statement) if(verboseflags & code) { printf("%s:%d: ", __FILE__, __LINE__); statement }
#else
#define TRACE(code, statement)
#endif
#define ENTERED 0xBA5E1514
#define NOTENTERED 0x1415BEE1
#define NOREC_ENTER(varname) \
static int varname = NOTENTERED; \
vmassert(varname == ENTERED || varname == NOTENTERED); \
vmassert(magictest == MAGICTEST); \
vmassert(varname != ENTERED); \
varname = ENTERED;
#define NOREC_RETURN(varname, v) do { \
vmassert(magictest == MAGICTEST); \
vmassert(varname == ENTERED || varname == NOTENTERED); \
varname = NOTENTERED; \
return v; \
} while(0)
#if DEBUG_VMASSERT
#define vmassert(t) { \
if(!(t)) { panic("kernel:%s:%d: assert %s failed", __FILE__, __LINE__, #t); } }
#else
#define vmassert(t) { }
#endif
#define NOT_REACHABLE do { \
panic("NOT_REACHABLE at %s:%d", __FILE__, __LINE__); \
for(;;); \
} while(0)
#define NOT_IMPLEMENTED do { \
panic("NOT_IMPLEMENTED at %s:%d", __FILE__, __LINE__); \
} while(0)
#ifdef CONFIG_BOOT_VERBOSE
#define BOOT_VERBOSE(x) x
#else
#define BOOT_VERBOSE(x)
#endif
#ifdef _SYSTEM
#define DEBUG_PRINT(params, level) do { \
if (verboseboot >= (level)) printf params; } while (0)
#define DEBUGBASIC(params) DEBUG_PRINT(params, VERBOSEBOOT_BASIC)
#define DEBUGMAX(params) DEBUG_PRINT(params, VERBOSEBOOT_MAX)
#endif
#endif /* DEBUG_H */