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[PATCH][gdb/testsuite] Fix break-probes.exp with native-gdbserver


Hi,

When running break-probes.exp with native-gdbserver, we run into:
...
FAIL: gdb.base/break-probes.exp: run til our library loads (the program exited)
FAIL: gdb.base/break-probes.exp: call (int) foo(23)
...
due to the fact that we're trying to match:
...
Inferior loaded /data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base\
  /break-probes/break-probes-solib.so
...
using pattern:
...
Inferior loaded $sysroot$binfile_lib
...
which expands into:
...
Inferior loaded //data/gdb_versions/devel/build/gdb/testsuite/outputs/gdb.base\
  /break-probes/break-probes-solib.so
...

Fix this by removing trailing slashes from the sysroot variable.

Tested on x86_64-linux with native and native-gdbserver (with sysroot set to
"/", "/." and "/./").

OK for trunk?

Thanks,
- Tom

[gdb/testsuite] Fix break-probes.exp with native-gdbserver

gdb/testsuite/ChangeLog:

2019-04-18  Tom de Vries  <tdevries@suse.de>

	PR gdb/24433
	* gdb.base/break-probes.exp: Remove trailing slash from sysroot
	variable.

---
 gdb/testsuite/gdb.base/break-probes.exp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gdb/testsuite/gdb.base/break-probes.exp b/gdb/testsuite/gdb.base/break-probes.exp
index ca9a7841f1..3c826e1aad 100644
--- a/gdb/testsuite/gdb.base/break-probes.exp
+++ b/gdb/testsuite/gdb.base/break-probes.exp
@@ -70,6 +70,9 @@ if { $using_probes } {
 	}
     }
 
+    # Remove trailing slash.
+    regsub {/$} "$sysroot" "" sysroot
+
     # GDB strips "target:" from the start of filenames
     # when operating on the local filesystem
     regsub "^target:" "$sysroot" "(target:)?" sysroot


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