98563a4afa
- if debugging on serial console is enabled typing Q kills the system. It is handy if the system gets locked up and the timer interrupts still work. Good for remote debugging. - NOT_REACHABLE reintroduced and fixed. It should be used for marking code which is not reachable because the previous code _should_ not return. Such places are not always obvious
90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
#ifndef DEBUG_H
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#define DEBUG_H
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/* This header file defines all debugging constants and macros, and declares
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* some variables. Certain debugging features redefine standard constants
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* and macros. Therefore, this header file should be included after the
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* other kernel headers.
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*/
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#include <ansi.h>
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#include <minix/debug.h>
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#include "config.h"
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/* Enable prints such as
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* . send/receive failed due to deadlock or dead source or dead destination
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* . trap not allowed
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* . bogus message pointer
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* . kernel call number not allowed by this process
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*
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* Of course the call still fails, but nothing is printed if these warnings
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* are disabled.
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*/
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#define DEBUG_ENABLE_IPC_WARNINGS 1
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#define DEBUG_STACKTRACE 1
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#define DEBUG_TIME_LOCKS 1
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/* Runtime sanity checking. */
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#define DEBUG_VMASSERT 0
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#define DEBUG_SCHED_CHECK 0
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#define DEBUG_STACK_CHECK 0
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#define DEBUG_TRACE 0
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#if DEBUG_TRACE
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#define VF_SCHEDULING (1L << 1)
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#define VF_PICKPROC (1L << 2)
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#define TRACE(code, statement) if(verboseflags & code) { printf("%s:%d: ", __FILE__, __LINE__); statement }
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#else
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#define TRACE(code, statement)
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#endif
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#define ENTERED 0xBA5E1514
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#define NOTENTERED 0x1415BEE1
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#define NOREC_ENTER(varname) \
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static int varname = NOTENTERED; \
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int mustunlock = 0; \
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if(!intr_disabled()) { lock; mustunlock = 1; } \
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vmassert(varname == ENTERED || varname == NOTENTERED); \
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vmassert(magictest == MAGICTEST); \
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vmassert(varname != ENTERED); \
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varname = ENTERED;
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#define NOREC_RETURN(varname, v) do { \
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vmassert(intr_disabled()); \
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vmassert(magictest == MAGICTEST); \
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vmassert(varname == ENTERED || varname == NOTENTERED); \
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varname = NOTENTERED; \
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if(mustunlock) { unlock; } \
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return v; \
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} while(0)
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#if DEBUG_VMASSERT
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#define vmassert(t) { \
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if(!(t)) { minix_panic("vm: assert " #t " failed in " __FILE__, __LINE__); } }
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#else
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#define vmassert(t) { }
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#endif
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#define NOT_REACHABLE do { \
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kprintf("NOT_REACHABLE at %s:%d\n", __FILE__, __LINE__); \
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minix_panic("execution at an unexpected location\n", NO_NUM); \
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for(;;); \
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} while(0)
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#define NOT_IMPLEMENTED do { \
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kprintf("NOT_IMPLEMENTED at %s:%d\n", __FILE__, __LINE__); \
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minix_panic("NOT_IMPLEMENTED", NO_NUM); \
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} while(0)
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#ifdef CONFIG_BOOT_VERBOSE
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#define BOOT_VERBOSE(x) x
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#else
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#define BOOT_VERBOSE(x)
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#endif
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#endif /* DEBUG_H */
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