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Return -1 from db_numargs() if number of args couldn't be guessed.

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Use this later to indicate in backtrace output that args shown are
uncertain.

Sponsored by: RiNet (Cronyx Plus LLC)
This commit is contained in:
Yaroslav Tykhiy 2006-06-16 11:49:37 +00:00
parent 93ad18ec7f
commit a436dbf123
1 changed files with 8 additions and 4 deletions
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12
sys/i386/i386/db_trace.c
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@ -212,7 +212,7 @@ db_numargs(fp)
* may require better fault handling.
*/
if (argp < btext || argp >= etext) {
args = 5;
args = -1;
} else {
retry:
inst = db_get_value((int)argp, 4, FALSE);
@ -224,7 +224,7 @@ db_numargs(fp)
argp += 2;
goto retry;
} else
args = 5;
args = -1;
}
return (args);
}
@ -237,15 +237,19 @@ db_print_stack_entry(name, narg, argnp, argp, callpc)
int *argp;
db_addr_t callpc;
{
int n = narg >= 0 ? narg : 5;
db_printf("%s(", name);
while (narg) {
while (n) {
if (argnp)
db_printf("%s=", *argnp++);
db_printf("%r", db_get_value((int)argp, 4, FALSE));
argp++;
if (--narg != 0)
if (--n != 0)
db_printf(",");
}
if (narg < 0)
db_printf(",...");
db_printf(") at ");
db_printsym(callpc, DB_STGY_PROC);
db_printf("\n");