From d9d2d8b6c09d51c13c6c26a7bfa6bc1bbddf574a Mon Sep 17 00:00:00 2001 From: Pedro Alves Date: Thu, 21 May 2009 16:00:14 +0000 Subject: [PATCH] * linux-nat.c (linux_nat_terminal_inferior) (linux_nat_terminal_ours): Don't check sync_execution. * remote.c (remote_terminal_inferior, remote_terminal_ours): Don't check sync_execution. Update comments. * target.c (target_terminal_inferior): New. * target.h (target_terminal_inferior): Delete macro, and declare as function. * event-top.c (async_disable_stdin): Make idempotent. Don't give the target the terminal here. * inflow.c (terminal_ours_1): Don't return early without setting `terminal_is_ours'. --- gdb/ChangeLog | 14 ++++++++++++++ gdb/event-top.c | 13 +++++-------- gdb/inflow.c | 5 ++--- gdb/linux-nat.c | 10 +--------- gdb/remote.c | 22 ++++++---------------- gdb/target.c | 12 ++++++++++++ gdb/target.h | 3 +-- 7 files changed, 41 insertions(+), 38 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index c45f8aaebbc..56223059fd3 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,17 @@ +2009-05-21 Pedro Alves + + * linux-nat.c (linux_nat_terminal_inferior) + (linux_nat_terminal_ours): Don't check sync_execution. + * remote.c (remote_terminal_inferior, remote_terminal_ours): + Don't check sync_execution. Update comments. + * target.c (target_terminal_inferior): New. + * target.h (target_terminal_inferior): Delete macro, and declare + as function. + * event-top.c (async_disable_stdin): Make idempotent. Don't give + the target the terminal here. + * inflow.c (terminal_ours_1): Don't return early without setting + `terminal_is_ours'. + 2009-05-21 Pedro Alves * target.h (TARGET_WNOHANG): New. diff --git a/gdb/event-top.c b/gdb/event-top.c index fd7c521a5ea..31ebd4ea004 100644 --- a/gdb/event-top.c +++ b/gdb/event-top.c @@ -458,14 +458,11 @@ async_enable_stdin (void) void async_disable_stdin (void) { - sync_execution = 1; - push_prompt ("", "", ""); - /* FIXME: cagney/1999-09-27: At present this call is technically - redundant since infcmd.c and infrun.c both already call - target_terminal_inferior(). As the terminal handling (in - sync/async mode) is refined, the duplicate calls can be - eliminated (Here or in infcmd.c/infrun.c). */ - target_terminal_inferior (); + if (!sync_execution) + { + sync_execution = 1; + push_prompt ("", "", ""); + } } diff --git a/gdb/inflow.c b/gdb/inflow.c index 6ca5bd8cc4a..27995cc0f87 100644 --- a/gdb/inflow.c +++ b/gdb/inflow.c @@ -361,6 +361,8 @@ terminal_ours_1 (int output_only) if (terminal_is_ours) return; + terminal_is_ours = 1; + /* Checking inferior->run_terminal is necessary so that if GDB is running in the background, it won't block trying to do the ioctl()'s below. Checking gdb_has_a_terminal @@ -371,7 +373,6 @@ terminal_ours_1 (int output_only) if (inf->terminal_info->run_terminal != NULL || gdb_has_a_terminal () == 0) return; - if (!terminal_is_ours) { #ifdef SIGTTOU /* Ignore this signal since it will happen when we try to set the @@ -380,8 +381,6 @@ terminal_ours_1 (int output_only) #endif int result; - terminal_is_ours = 1; - #ifdef SIGTTOU if (job_control) osigttou = (void (*)()) signal (SIGTTOU, SIG_IGN); diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c index 8f125879500..90574424a32 100644 --- a/gdb/linux-nat.c +++ b/gdb/linux-nat.c @@ -4360,14 +4360,9 @@ linux_nat_terminal_inferior (void) return; } - /* GDB should never give the terminal to the inferior, if the - inferior is running in the background (run&, continue&, etc.). - This check can be removed when the common code is fixed. */ - if (!sync_execution) - return; - terminal_inferior (); + /* Calls to target_terminal_*() are meant to be idempotent. */ if (!async_terminal_is_ours) return; @@ -4393,9 +4388,6 @@ linux_nat_terminal_ours (void) but claiming it sure should. */ terminal_ours (); - if (!sync_execution) - return; - if (async_terminal_is_ours) return; diff --git a/gdb/remote.c b/gdb/remote.c index 199120d553d..8a1a0d4c141 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -4078,19 +4078,12 @@ remote_terminal_inferior (void) /* Nothing to do. */ return; - /* FIXME: cagney/1999-09-27: Shouldn't need to test for - sync_execution here. This function should only be called when - GDB is resuming the inferior in the forground. A background - resume (``run&'') should leave GDB in control of the terminal and - consequently should not call this code. */ - if (!sync_execution) - return; - /* FIXME: cagney/1999-09-27: Closely related to the above. Make - calls target_terminal_*() idenpotent. The event-loop GDB talking - to an asynchronous target with a synchronous command calls this - function from both event-top.c and infrun.c/infcmd.c. Once GDB - stops trying to transfer the terminal to the target when it - shouldn't this guard can go away. */ + /* FIXME: cagney/1999-09-27: Make calls to target_terminal_*() + idempotent. The event-loop GDB talking to an asynchronous target + with a synchronous command calls this function from both + event-top.c and infrun.c/infcmd.c. Once GDB stops trying to + transfer the terminal to the target when it shouldn't this guard + can go away. */ if (!remote_async_terminal_ours_p) return; delete_file_handler (input_fd); @@ -4109,9 +4102,6 @@ remote_terminal_ours (void) return; /* See FIXME in remote_terminal_inferior. */ - if (!sync_execution) - return; - /* See FIXME in remote_terminal_inferior. */ if (remote_async_terminal_ours_p) return; cleanup_sigint_signal_handler (NULL); diff --git a/gdb/target.c b/gdb/target.c index 8cbde1b91ec..6dfa73667da 100644 --- a/gdb/target.c +++ b/gdb/target.c @@ -301,6 +301,18 @@ target_create_inferior (char *exec_file, char *args, "could not find a target to create inferior"); } +void +target_terminal_inferior (void) +{ + /* A background resume (``run&'') should leave GDB in control of the + terminal. */ + if (target_is_async_p () && !sync_execution) + return; + + /* If GDB is resuming the inferior in the foreground, install + inferior's terminal modes. */ + (*current_target.to_terminal_inferior) (); +} static int nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, diff --git a/gdb/target.h b/gdb/target.h index 5ec06a08e6f..b1fe4032aae 100644 --- a/gdb/target.h +++ b/gdb/target.h @@ -763,8 +763,7 @@ extern void print_section_info (struct target_ops *, bfd *); /* Put the inferior's terminal settings into effect. This is preparation for starting or resuming the inferior. */ -#define target_terminal_inferior() \ - (*current_target.to_terminal_inferior) () +extern void target_terminal_inferior (void); /* Put some of our terminal settings into effect, enough to get proper results from our output, -- 2.30.2