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* dcrt0.cc (jit_debug): New global.

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(initial_env): Set jit_debug when we are automatically starting a gdb process.
* dtable.cc (dtable::get_debugger_info): Don't tty tricks when we are being
debugged by our own captive gdb, as determined by jit_debug == true.
(dtable::init_std_file_from_handle): Detect errors when initializing a tty
early rather than at random points later.
* fhandler.h (fhandler_*::init): Return int to indicate success/failure.
* fhandler.cc (fhandler_base::init): Reflect change in return value.
* pipe.cc (fhandler_pipe::init): Ditto.
(fhandler_pipe::create_selectable): Don't say we're retrying when we aren't.
* fhandler_console.cc (fhandler_console::init): Ditto.  Return success/failure.
* fhandler_serial.cc (fhandler_serial::init): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::init): Ditto.
(fhandler_tty_slave::open): Make debugging output more detailed.
* tty.cc (tty_list::terminate): Don't close I/O handles before all slaves have
checked in.
(tty::slave_alive): Make a non-inlined function.  Check if tty pipe handles can
be created as an additional exists check.
* tty.h (tty::slave_alive): Just define here.
This commit is contained in:
Christopher Faylor
2009-07-03 18:05:51 +00:00
parent 3e62013829
commit 3c4f2024a1
11 changed files with 85 additions and 38 deletions
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11
winsup/cygwin/dtable.cc
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@@ -109,7 +109,8 @@ dtable::extend (int howmuch)
void
dtable::get_debugger_info ()
{
if (being_debugged ())
extern bool jit_debug;
if (!jit_debug && being_debugged ())
{
char std[3][sizeof ("/dev/ttyNNNN")];
std[0][0] = std[1][0] = std [2][0] = '\0';
@@ -383,9 +384,11 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle)
This needs further investigation but the workaround not to close
the handles will have a marginal hit of three extra handles per
process at most. */
fh->init (dev == FH_CONSOLE && wincap.has_console_handle_problem ()
? INVALID_HANDLE_VALUE : handle, access, bin);
set_std_handle (fd);
if (fh->init (dev == FH_CONSOLE && wincap.has_console_handle_problem ()
? INVALID_HANDLE_VALUE : handle, access, bin))
set_std_handle (fd);
else
api_fatal ("couldn't initialize fd %d for %s", fd, fh->get_name ());
paranoid_printf ("fd %d, handle %p", fd, handle);
}
}