gdb: add infrun_debug_printf macro

Introduce this macro to print debug statements in the infrun.c file,
same idea as what was done in 9327494e0eeb ("gdb: add
linux_nat_debug_printf macro").

Although in this case, there are places outside infrun.c that print
debug statements if debug_infrun is set.  So the macro has to be
declared in the header file, so that it can be used in these other
files.

Note one special case.  In stop_all_threads, I've used an explicit

    if (debug_infrun)
      infrun_debug_printf_1 ("stop_all_threads", "done");

for the message in the SCOPE_EXIT.  Otherwise, the message appears like
this:

  [infrun] operator(): done

Until we find a better solution for extracting a meaningful function
name for lambda functions, I think it's fine to handle these special
cases manually, they are quite rare.

Some tests need to be updated, because they rely on some infrun debug
statements.

gdb/ChangeLog:

	* infrun.h (infrun_debug_printf_1): New function declaration.
	(infrun_debug_printf): New macro.
	* infrun.c (infrun_debug_printf_1): Use infrun_debug_printf
	throughout.
	(infrun_debug_printf): New function.
	* breakpoint.c (should_be_inserted): Use infrun_debug_printf.
	(handle_jit_event): Likewise.

gdb/testsuite/ChangeLog:

	* gdb.base/gdb-sigterm.exp (do_test): Update expected regexp.
	* gdb.threads/signal-while-stepping-over-bp-other-thread.exp:
	Likewise.
	* gdb.threads/stepi-random-signal.exp: Likewise.

Change-Id: I66433c8a9caa64c8525ab57c593022b9d1956d5c

4 files changed, 11 insertions, 4 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 7976dd7..61a37ab 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2020-08-24  Simon Marchi  <simon.marchi@efficios.com>
+
+	* gdb.base/gdb-sigterm.exp (do_test): Update expected regexp.
+	* gdb.threads/signal-while-stepping-over-bp-other-thread.exp:
+	Likewise.
+	* gdb.threads/stepi-random-signal.exp: Likewise.
+
 2020-08-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
 	* gdb.base/print-file-var.exp: Fix typo "breapoint".
diff --git a/gdb/testsuite/gdb.base/gdb-sigterm.exp b/gdb/testsuite/gdb.base/gdb-sigterm.exp
index 4f1f809..d4c31df 100644
--- a/gdb/testsuite/gdb.base/gdb-sigterm.exp
+++ b/gdb/testsuite/gdb.base/gdb-sigterm.exp
@@ -53,7 +53,7 @@ proc do_test { pass } {
     set test "run a bit #$pass"
     set abort 1
     gdb_test_multiple "step" $test {
-	-re "infrun: stepping inside range" {
+	-re {\[infrun\] process_event_stop_test: stepping inside range} {
 	    # Suppress pass $test
 	    verbose -log "$pf_prefix $test: ran"
 	    set abort 0
@@ -78,7 +78,7 @@ proc do_test { pass } {
 	    verbose -log "$pf_prefix $test: got eof"
 	    set abort 0
 	}
-	-re "infrun: stepping inside range" {
+	-re "infrun: process_event_stop_test: stepping inside range" {
 	    incr stepping
 	    exp_continue
 	}
diff --git a/gdb/testsuite/gdb.threads/signal-while-stepping-over-bp-other-thread.exp b/gdb/testsuite/gdb.threads/signal-while-stepping-over-bp-other-thread.exp
index e3aa083..6a95081 100644
--- a/gdb/testsuite/gdb.threads/signal-while-stepping-over-bp-other-thread.exp
+++ b/gdb/testsuite/gdb.threads/signal-while-stepping-over-bp-other-thread.exp
@@ -104,7 +104,7 @@ gdb_test "set debug infrun 1"
 set test "step"
 gdb_test_sequence $test $test {
     "need to step-over"
-    "resume \\(step=1"
+    "resume_1: step=1,"
     "signal arrived while stepping over breakpoint"
     "stepped to a different line"
     "callme"
diff --git a/gdb/testsuite/gdb.threads/stepi-random-signal.exp b/gdb/testsuite/gdb.threads/stepi-random-signal.exp
index c2722a2..fa20f38 100644
--- a/gdb/testsuite/gdb.threads/stepi-random-signal.exp
+++ b/gdb/testsuite/gdb.threads/stepi-random-signal.exp
@@ -87,7 +87,7 @@ set seen 0
 
 set test "stepi"
 if {[gdb_test_multiple "stepi" "$test" {
-    -re "infrun: random signal" {
+    -re "infrun: handle_signal_stop: random signal" {
 	set seen 1
 	exp_continue
     }