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There are many places in libdtrace where errno can be set. When an

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error is returned all the way back to the dtrace app, it's hard to
figure out where that error came from.

Add a couple of functions to get and set the error location which can
be optionally compiled into the library.
This commit is contained in:
John Birrell 2008-04-26 04:43:19 +00:00
parent 79673c5671
commit 768c574fc0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=178561
1 changed files with 18 additions and 0 deletions
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18
cddl/contrib/opensolaris/lib/libdtrace/common/dt_error.c
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@ -25,6 +25,7 @@
#pragma ident "%Z%%M% %I% %E% SMI"
#include <string.h>
#include <strings.h>
#include <dt_impl.h>
@ -138,12 +139,29 @@ dtrace_errno(dtrace_hdl_t *dtp)
return (dtp->dt_errno);
}
#if defined(sun)
int
dt_set_errno(dtrace_hdl_t *dtp, int err)
{
dtp->dt_errno = err;
return (-1);
}
#else
int
_dt_set_errno(dtrace_hdl_t *dtp, int err, const char *errfile, int errline)
{
dtp->dt_errno = err;
dtp->dt_errfile = errfile;
dtp->dt_errline = errline;
return (-1);
}
void dt_get_errloc(dtrace_hdl_t *dtp, const char **p_errfile, int *p_errline)
{
*p_errfile = dtp->dt_errfile;
*p_errline = dtp->dt_errline;
}
#endif
void
dt_set_errmsg(dtrace_hdl_t *dtp, const char *errtag, const char *region,