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libsys: remove unused stacktrace variant

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This commit is contained in:
David van Moolenbroek 2012-08-07 13:10:05 +02:00
parent be87fdda3d
commit 49aed1ad97
2 changed files with 16 additions and 53 deletions
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2
include/minix/sysutil.h
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@ -56,8 +56,6 @@ int tsc_calibrate(void);
u32_t sys_hz(void);
double getidle(void);
void util_stacktrace(void);
void util_nstrcat(char *str, unsigned long n);
void util_stacktrace_strcat(char *);
int micro_delay(u32_t micros);
u32_t tsc_64_to_micros(u64_t tsc);
u32_t tsc_to_micros(u32_t low, u32_t high);

67
lib/libsys/stacktrace.c
View file

@ -11,62 +11,27 @@ Copyright 1995 Philip Homburg
typedef unsigned int reg_t;
#define FUNC_STACKTRACE(statement) \
{ \
reg_t bp, pc, hbp; \
extern reg_t get_bp(void); \
\
bp= get_bp(); \
while(bp) \
{ \
pc= ((reg_t *)bp)[1]; \
hbp= ((reg_t *)bp)[0]; \
statement; \
if (hbp != 0 && hbp <= bp) \
{ \
pc = -1; \
statement; \
break; \
} \
bp= hbp; \
} \
}
void util_nstrcat(char *str, unsigned long number)
{
#if USE_SYSDEBUG
int n = 10, lead = 1;
char nbuf[12], *p;
p = nbuf;
*p++ = '0';
*p++ = 'x';
for(n = 0; n < 8; n++) {
int i;
i = (number >> ((7-n)*4)) & 0xF;
if(!lead || i) {
*p++ = i < 10 ? '0' + i : 'a' + i - 10;
lead = 0;
}
}
if(lead) *p++ = '0';
*p++ = ' ';
*p++ = '\0';
strcat(str, nbuf);
#endif /* USE_SYSDEBUG */
}
extern reg_t get_bp(void);
void util_stacktrace(void)
{
#if USE_SYSDEBUG
FUNC_STACKTRACE(printf("0x%lx ", (unsigned long) pc));
reg_t bp, pc, hbp;
bp= get_bp();
while(bp)
{
pc= ((reg_t *)bp)[1];
hbp= ((reg_t *)bp)[0];
printf("0x%lx ", (unsigned long) pc);
if (hbp != 0 && hbp <= bp)
{
printf("0x%lx ", (unsigned long) -1);
break;
}
bp= hbp;
}
printf("\n");
#endif /* USE_SYSDEBUG */
}
void util_stacktrace_strcat(char *str)
{
#if USE_SYSDEBUG
FUNC_STACKTRACE(util_nstrcat(str, pc));
#endif /* USE_SYSDEBUG */
}