[PATCH 1/3] Compile gdb.perf/skip-prologue.c with and without debug info

[Yao Qi <qiyaoltc@gmail.com>]

gdb.perf/skip-prologue.exp is intended to measure the performance of
skipping prologue with prologue analysis by setting breakpoints.
However, if program is compiled with debug info, GDB is smart to
skip prologue by line table from debug info, so prologue analysis
is not exercised at all.

This patch adds a parameter COMPILE to specify compiling with
debug information, otherwise, it is compiled without debug
information.

gdb/testsuite:

2016-12-06  Yao Qi  <yao.qi@linaro.org>

	* gdb.perf/skip-prologue.exp: Add parameter COMPILE.
---
 gdb/testsuite/gdb.perf/skip-prologue.exp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.perf/skip-prologue.exp b/gdb/testsuite/gdb.perf/skip-prologue.exp
index 2c4aad4..a24fd73 100644
--- a/gdb/testsuite/gdb.perf/skip-prologue.exp
+++ b/gdb/testsuite/gdb.perf/skip-prologue.exp
@@ -37,7 +37,13 @@ if ![info exists SKIP_PROLOGUE_COUNT] {
 PerfTest::assemble {
     global srcdir subdir srcfile binfile
 
-    if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable {debug}] != "" } {
+    if [info exists COMPILE] {
+	set opts {debug}
+    } else {
+	set opts {nodebug}
+    }
+
+    if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable $opts] != "" } {
 	return -1
     }
 
-- 
1.9.1