[1/2] gdb: add inferior_cloned observable

Message ID 20230913152845.1540064-1-simon.marchi@efficios.com
State New
Headers
Series [1/2] gdb: add inferior_cloned observable |

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Commit Message

Simon Marchi Sept. 13, 2023, 3:28 p.m. UTC
  The following patch makes the amdgpu port transfer a property from the
original inferior to the new inferior when using the clone-inferior
command.  Add the inferior_cloned observable to help with this.

Change-Id: Id845a799813ec49b1b7b2fcb97b07d0a1e5e2631
---
 gdb/inferior.c   | 2 ++
 gdb/observable.c | 1 +
 gdb/observable.h | 4 ++++
 3 files changed, 7 insertions(+)


base-commit: 38cc67cc00dc7385991e2658a1b4213d5ba3c4f0
  

Comments

Tom Tromey Sept. 14, 2023, 2:08 p.m. UTC | #1
>>>>> "Simon" == Simon Marchi via Gdb-patches <gdb-patches@sourceware.org> writes:

Simon> The following patch makes the amdgpu port transfer a property from the
Simon> original inferior to the new inferior when using the clone-inferior
Simon> command.  Add the inferior_cloned observable to help with this.

FWIW this patch seems totally fine to me.

Tom
  
Simon Marchi Sept. 14, 2023, 3:53 p.m. UTC | #2
On 9/14/23 10:08, Tom Tromey wrote:
>>>>>> "Simon" == Simon Marchi via Gdb-patches <gdb-patches@sourceware.org> writes:
> 
> Simon> The following patch makes the amdgpu port transfer a property from the
> Simon> original inferior to the new inferior when using the clone-inferior
> Simon> command.  Add the inferior_cloned observable to help with this.
> 
> FWIW this patch seems totally fine to me.
> 
> Tom

Thanks, I'll add you Approved-By.

Simon
  

Patch

diff --git a/gdb/inferior.c b/gdb/inferior.c
index ce4960a508aa..550bbd2827c0 100644
--- a/gdb/inferior.c
+++ b/gdb/inferior.c
@@ -1041,6 +1041,8 @@  clone_inferior_command (const char *args, int from_tty)
       for (const std::string &unset_var
 	   : orginf->environment.user_unset_env ())
 	inf->environment.unset (unset_var.c_str ());
+
+      gdb::observers::inferior_cloned.notify (orginf, inf);
     }
 }
 
diff --git a/gdb/observable.c b/gdb/observable.c
index a18b863fb471..33e51223cf41 100644
--- a/gdb/observable.c
+++ b/gdb/observable.c
@@ -58,6 +58,7 @@  DEFINE_OBSERVABLE (inferior_appeared);
 DEFINE_OBSERVABLE (inferior_pre_detach);
 DEFINE_OBSERVABLE (inferior_exit);
 DEFINE_OBSERVABLE (inferior_removed);
+DEFINE_OBSERVABLE (inferior_cloned);
 DEFINE_OBSERVABLE (memory_changed);
 DEFINE_OBSERVABLE (before_prompt);
 DEFINE_OBSERVABLE (gdb_datadir_changed);
diff --git a/gdb/observable.h b/gdb/observable.h
index c0bafc51f143..4ea203c6fc38 100644
--- a/gdb/observable.h
+++ b/gdb/observable.h
@@ -172,6 +172,10 @@  extern observable<struct inferior */* inf */> inferior_exit;
    This method is called immediately before freeing INF.  */
 extern observable<struct inferior */* inf */> inferior_removed;
 
+/* The inferior CLONE has been created by cloning INF.  */
+extern observable<struct inferior */* inf */, struct inferior */* clone */>
+    inferior_cloned;
+
 /* Bytes from DATA to DATA + LEN have been written to the inferior
    at ADDR.  */
 extern observable<struct inferior */* inferior */, CORE_ADDR /* addr */,