From 65cc4390f1aea99f342f461aa6cbd7236d09552b Mon Sep 17 00:00:00 2001 From: Vladimir Prus Date: Sun, 8 Apr 2007 15:20:07 +0000 Subject: Pass stderr of program run with "target remote |" via gdb_stderr. * serial.c (serial_open): Set error_fd to -1. * serial.h (struct serial): New field error_fd. (struct serial_opts): New field avail. * ser-pipe.c (pipe_open): Create another pair of sockets. Pass stderr to gdb. * ser-mingw.c (pipe_windows_open): Pass PEX_STDERR_TO_PIPE to pex_run. Initialize sd->error_fd. (pipe_avail): New. (_initialize_ser_windows): Hook pipe_avail. * ser-base.c (generic_readchar): Check if there's anything in stderr channel and route that to gdb_stderr. --- gdb/serial.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'gdb/serial.h') diff --git a/gdb/serial.h b/gdb/serial.h index 1f0accd..49ad4d1 100644 --- a/gdb/serial.h +++ b/gdb/serial.h @@ -191,6 +191,11 @@ extern int serial_debug_p (struct serial *scb); struct serial { int fd; /* File descriptor */ + /* File descriptor for a separate error stream that should be + immediately forwarded to gdb_stderr. This may be -1. + If != -1, this descriptor should be non-blocking or + ops->avail should be non-NULL. */ + int error_fd; struct serial_ops *ops; /* Function vector */ void *state; /* Local context info for open FD */ serial_ttystate ttystate; /* Not used (yet) */ @@ -246,6 +251,11 @@ struct serial_ops /* Perform a low-level write operation, writing (at most) COUNT bytes from BUF. */ int (*write_prim)(struct serial *scb, const void *buf, size_t count); + /* Return that number of bytes that can be read from FD + without blocking. Return value of -1 means that the + the read will not block even if less that requested bytes + are available. */ + int (*avail)(struct serial *scb, int fd); #ifdef USE_WIN32API /* Return a handle to wait on, indicating available data from SCB -- cgit v1.1