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author | Pedro Alves <palves@redhat.com> | 2015-08-06 18:22:58 +0100 |
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committer | Pedro Alves <palves@redhat.com> | 2015-08-07 17:26:20 +0100 |
commit | bfedc46af315dc6484295699c35e05040d76d700 (patch) | |
tree | 8d40b327d379d576de014e255b096d2e5e32ae7e /gdb/target-delegates.c | |
parent | d55007b58352c0b5fd2817e003b6dcf4e3ee4c07 (diff) | |
download | gdb-bfedc46af315dc6484295699c35e05040d76d700.zip gdb-bfedc46af315dc6484295699c35e05040d76d700.tar.gz gdb-bfedc46af315dc6484295699c35e05040d76d700.tar.bz2 |
Fix interrupt-noterm.exp on targets always in non-stop
With "maint set target-non-stop on" we get:
@@ -66,13 +66,16 @@ Continuing.
interrupt
(gdb) PASS: gdb.base/interrupt-noterm.exp: interrupt
-Program received signal SIGINT, Interrupt.
-PASS: gdb.base/interrupt-noterm.exp: inferior received SIGINT
-testcase src/gdb/testsuite/gdb.base/interrupt-noterm.exp completed in 0 seconds
+[process 12119] #1 stopped.
+0x0000003615ebc6d0 in __nanosleep_nocancel () at ../sysdeps/unix/syscall-template.S:81
+81 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
+FAIL: gdb.base/interrupt-noterm.exp: inferior received SIGINT (timeout)
+testcase src/gdb/testsuite/gdb.base/interrupt-noterm.exp completed in 10 seconds
That is, we get "[$thread] #1 stopped" instead of SIGINT.
The issue is that we don't currently distinguish send
"interrupt/ctrl-c" to target terminal vs "stop/pause" thread well;
both cases go through "target_stop".
And then, the native Linux backend (linux-nat.c) implements
target_stop with SIGSTOP in non-stop mode, and SIGINT in all-stop
mode. Since "maint set target-non-stop on" forces the backend to be
always running in non-stop mode, even though the user-visible behavior
is "set non-stop" is "off", "interrupt" causes a SIGSTOP instead of
the SIGINT the test expects.
Fix this by introducing a target_interrupt method to use in the
"interrupt/ctrl-c" case, so "set non-stop off" can always work the
same irrespective of "maint set target-non-stop on/off". I'm
explictly considering changing the "set non-stop on" behavior as out
of scope here.
Most of the patch is an across-the-board rename of to_stop hook
implementations to to_interrupt. The only targets where something
more than a rename is being done are linux-nat.c and remote.c, which
are the only targets that support async, and thus are the only ones
the core side calls target_stop on.
gdb/ChangeLog:
2015-08-07 Pedro Alves <palves@redhat.com>
* darwin-nat.c (darwin_stop): Rename to ...
(darwin_interrupt): ... this.
(_initialize_darwin_inferior): Adjust.
* gnu-nat.c (gnu_stop): Delete.
(gnu_target): Don't install gnu_stop.
* inf-ptrace.c (inf_ptrace_stop): Rename to ...
(inf_ptrace_interrupt): ... this.
(inf_ptrace_target): Adjust.
* infcmd.c (interrupt_target_1): Use target_interrupt instead of
target_stop.
* linux-nat (linux_nat_stop): Rename to ...
(linux_nat_interrupt): ... this.
(linux_nat_stop): Reimplement.
(linux_nat_add_target): Install linux_nat_interrupt.
* nto-procfs.c (nto_interrupt_twice): Rename to ...
(nto_handle_sigint_twice): ... this.
(nto_interrupt): Rename to ...
(nto_handle_sigint): ... this. Call target_interrupt instead of
target_stop.
(procfs_wait): Adjust.
(procfs_stop): Rename to ...
(procfs_interrupt): ... this.
(init_procfs_targets): Adjust.
* procfs.c (procfs_stop): Rename to ...
(procfs_interrupt): ... this.
(procfs_target): Adjust.
* remote-m32r-sdi.c (m32r_stop): Rename to ...
(m32r_interrupt): ... this.
(init_m32r_ops): Adjust.
* remote-sim.c (gdbsim_stop_inferior): Rename to ...
(gdbsim_interrupt_inferior): ... this.
(gdbsim_stop): Rename to ...
(gdbsim_interrupt): ... this.
(gdbsim_cntrl_c): Adjust.
(init_gdbsim_ops): Adjust.
* remote.c (sync_remote_interrupt): Adjust comments.
(remote_stop_as): Rename to ...
(remote_interrupt_as): ... this.
(remote_stop): Adjust comment.
(remote_interrupt): New function.
(init_remote_ops): Install remote_interrupt.
* target.c (target_interrupt): New function.
* target.h (struct target_ops) <to_interrupt>: New field.
(target_interrupt): New declaration.
* windows-nat.c (windows_stop): Rename to ...
(windows_interrupt): ... this.
* target-delegates.c: Regenerate.
Diffstat (limited to 'gdb/target-delegates.c')
-rw-r--r-- | gdb/target-delegates.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c index 64b86c2..892cf9d 100644 --- a/gdb/target-delegates.c +++ b/gdb/target-delegates.c @@ -1537,6 +1537,30 @@ debug_stop (struct target_ops *self, ptid_t arg1) } static void +delegate_interrupt (struct target_ops *self, ptid_t arg1) +{ + self = self->beneath; + self->to_interrupt (self, arg1); +} + +static void +tdefault_interrupt (struct target_ops *self, ptid_t arg1) +{ +} + +static void +debug_interrupt (struct target_ops *self, ptid_t arg1) +{ + fprintf_unfiltered (gdb_stdlog, "-> %s->to_interrupt (...)\n", debug_target.to_shortname); + debug_target.to_interrupt (&debug_target, arg1); + fprintf_unfiltered (gdb_stdlog, "<- %s->to_interrupt (", debug_target.to_shortname); + target_debug_print_struct_target_ops_p (&debug_target); + fputs_unfiltered (", ", gdb_stdlog); + target_debug_print_ptid_t (arg1); + fputs_unfiltered (")\n", gdb_stdlog); +} + +static void delegate_rcmd (struct target_ops *self, const char *arg1, struct ui_file *arg2) { self = self->beneath; @@ -4016,6 +4040,8 @@ install_delegators (struct target_ops *ops) ops->to_thread_name = delegate_thread_name; if (ops->to_stop == NULL) ops->to_stop = delegate_stop; + if (ops->to_interrupt == NULL) + ops->to_interrupt = delegate_interrupt; if (ops->to_rcmd == NULL) ops->to_rcmd = delegate_rcmd; if (ops->to_pid_to_exec_file == NULL) @@ -4253,6 +4279,7 @@ install_dummy_methods (struct target_ops *ops) ops->to_extra_thread_info = tdefault_extra_thread_info; ops->to_thread_name = tdefault_thread_name; ops->to_stop = tdefault_stop; + ops->to_interrupt = tdefault_interrupt; ops->to_rcmd = default_rcmd; ops->to_pid_to_exec_file = tdefault_pid_to_exec_file; ops->to_log_command = tdefault_log_command; @@ -4402,6 +4429,7 @@ init_debug_target (struct target_ops *ops) ops->to_extra_thread_info = debug_extra_thread_info; ops->to_thread_name = debug_thread_name; ops->to_stop = debug_stop; + ops->to_interrupt = debug_interrupt; ops->to_rcmd = debug_rcmd; ops->to_pid_to_exec_file = debug_pid_to_exec_file; ops->to_log_command = debug_log_command; |