Compile gdb.perf/skip-prologue.c with and without debug info

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:

2016-12-09  Yao Qi  <yao.qi@linaro.org>

	* gdb.perf/skip-prologue.exp: Add parameter COMPILE.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index e63f2b7..d905df3 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2016-12-09  Yao Qi  <yao.qi@linaro.org>
+
+       * gdb.perf/skip-prologue.exp: Add parameter COMPILE.
+
 2016-12-02  Luis Machado  <lgustavo@codesourcery.com>
 
        * gdb.base/maint.exp: Use gdb_test instead of gdb_test_multiple when

diff --git a/gdb/testsuite/gdb.perf/skip-prologue.exp b/gdb/testsuite/gdb.perf/skip-prologue.exp
index 2c4aad4..f31f697 100644 (file)
--- a/gdb/testsuite/gdb.perf/skip-prologue.exp
+++ b/gdb/testsuite/gdb.perf/skip-prologue.exp
@@ -37,7 +37,14 @@ 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] != "" } {
+       untested "failed to compile"
        return -1
     }