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

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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
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9
winsup/cygwin/pthread.cc
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@ -15,6 +15,7 @@
#include "cygerrno.h"
#include <stdarg.h>
#include <sys/fcntl.h>
#include "cygtls.h"
extern "C"
{
@ -165,8 +166,14 @@ sem_destroy (sem_t * sem)
static bool
mangle_sem_name (char *mangled, const char *name)
{
if (check_null_empty_str_errno (name))
myfault efault;
if (efault.faulted (EFAULT))
return false;
if (!*name)
{
set_errno (ENOENT);
return false;
}
int len = strlen (name);
if (len >= CYG_MAX_PATH
|| (wincap.has_terminal_services () && len >= CYG_MAX_PATH - 7))