JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Replace valid memory checks with new myfault class "exception handling", almost

Browse Source 
everywhere.  Leave some thread.cc stuff alone for now.
* cygtls.h: Kludge some definitions to avoid including a problematic windows
header.
(_cygtls::_myfault): New entry.
(_cygtls::_myfault_errno): Ditto.
(_cygtls::fault_guarded): New function.
(_cygtls::setup_fault): Ditto.
(_cygtls::return_from_fault): Ditto.
(_cygtls::clear_fault): Ditto.
(myfault): New class.
* exceptions.cc (handle_exceptions): Handle case of guarded fault in system
routine.
* gendef: Add another entry point for setjmp that the compiler doesn't know
about and won't complain about.
* gentls_offsets: Just include windows.h rather than kludging a HANDLE def.
* miscfuncs.cc (check_null_str): Delete.
(check_null_empty_str): Ditto.
(check_null_empty_str_errno): Ditto.
(check_null_str_errno): Ditto.
(__check_null_invalid_struct): Ditto.
(__check_null_invalid_struct_errno): Ditto.
(__check_invalid_read_ptr): Ditto.
(__check_invalid_read_ptr_errno): Ditto.
(dummytest): New function.
(check_iovec_for_read): Delete.
(chec_iovec): Rename from check_iovec_for_write.  Take a read/write parameter.
* tlsoffsets.h: Regenerate.
* winsup.h: Remove check_* declarations.
(check_iovec_for_read): Delete declaration.  Turn into a define instead.
(check_iovec_for_write): Ditto.
(check_iovec): New declaration.
* thread.h: Use ifdef guard name consistent with other header files.
This commit is contained in:
Christopher Faylor
2005-07-03 02:40:30 +00:00
parent 766bda7133
commit 893ac8e03c
32 changed files with 514 additions and 446 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
winsup/cygwin/timer.cc
View File

@ -216,10 +216,10 @@ timer_tracker::settime (int in_flags, const itimerspec *value, itimerspec *ovalu
return -1;
}
if (__check_invalid_read_ptr_errno (value, sizeof (*value))
myfault efault;
if (efault.faulted (EFAULT)
|| it_bad (value->it_value)
|| it_bad (value->it_interval)
|| (ovalue && check_null_invalid_struct_errno (ovalue)))
|| it_bad (value->it_interval))
return -1;
long long now = in_flags & TIMER_ABSTIME ? 0 : gtod.usecs (false);
@ -271,11 +271,12 @@ timer_tracker::gettime (itimerspec *ovalue)
extern "C" int
timer_gettime (timer_t timerid, struct itimerspec *ovalue)
{
if (check_null_invalid_struct_errno (ovalue))
myfault efault;
if (efault.faulted (EFAULT))
return -1;
timer_tracker *tt = (timer_tracker *) timerid;
if (check_null_invalid_struct (tt) || tt->magic != TT_MAGIC)
if (tt->magic != TT_MAGIC)
{
set_errno (EINVAL);
return -1;
@ -288,8 +289,8 @@ timer_gettime (timer_t timerid, struct itimerspec *ovalue)
extern "C" int
timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
{
if (evp && check_null_invalid_struct_errno (evp)
|| check_null_invalid_struct_errno (timerid))
myfault efault;
if (efault.faulted (EFAULT))
return -1;
if (clock_id != CLOCK_REALTIME)
{
@ -306,7 +307,10 @@ timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
struct itimerspec *ovalue)
{
timer_tracker *tt = (timer_tracker *) timerid;
if (check_null_invalid_struct (tt) || tt->magic != TT_MAGIC)
myfault efault;
if (efault.faulted (EFAULT))
return -1;
if (tt->magic != TT_MAGIC)
{
set_errno (EINVAL);
return -1;
@ -319,7 +323,10 @@ extern "C" int
timer_delete (timer_t timerid)
{
timer_tracker *in_tt = (timer_tracker *) timerid;
if (check_null_invalid_struct (in_tt) || in_tt->magic != TT_MAGIC)
myfault efault;
if (efault.faulted (EFAULT))
return -1;
if (in_tt->magic != TT_MAGIC)
{
set_errno (EINVAL);
return -1;
@ -386,7 +393,8 @@ getitimer (int which, struct itimerval *ovalue)
set_errno (EINVAL);
return -1;
}
if (check_null_invalid_struct_errno (ovalue))
myfault efault;
if (efault.faulted (EFAULT))
return -1;
struct itimerspec spec_ovalue;
int ret = timer_gettime ((timer_t) &ttstart, &spec_ovalue);