fix some "exec" tests

A few tests run an inferior that execs some other program.  The name
of this exec'd program is compiled in.  These tests assume the current
test suite directory layout, but fail in parallel mode.

This patch fixes these tests by letting the .exp files pass in the
directory names at compile time.

2013-11-04  Tom Tromey  <tromey@redhat.com>

	* gdb.base/foll-exec.c (main): Use BASEDIR.
	* gdb.base/foll-exec.exp: Define BASEDIR during compilation.
	* gdb.base/foll-vfork.c (main): Use BASEDIR.
	* gdb.base/foll-vfork.exp: Define BASEDIR during compilation.
	* gdb.multi/bkpt-multi-exec.c (main): Use BASEDIR.
	* gdb.multi/bkpt-multi-exec.exp: Define BASEDIR during compilation.

4 files changed, 19 insertions, 11 deletions

diff --git a/gdb/testsuite/gdb.base/foll-exec.c b/gdb/testsuite/gdb.base/foll-exec.c
index 1b76090..78c1cda 100644
--- a/gdb/testsuite/gdb.base/foll-exec.c
+++ b/gdb/testsuite/gdb.base/foll-exec.c
@@ -17,27 +17,27 @@ main ()
 
   printf ("foll-exec is about to execlp(execd-prog)...\n");
 
-  execlp ("gdb.base/execd-prog",
-          "gdb.base/execd-prog",
+  execlp (BASEDIR "/execd-prog",
+          BASEDIR "/execd-prog",
           "execlp arg1 from foll-exec",
           (char *)0);
 
   printf ("foll-exec is about to execl(execd-prog)...\n");
 
-  execl ("gdb.base/execd-prog",
-         "gdb.base/execd-prog",
+  execl (BASEDIR "/execd-prog",
+         BASEDIR "/execd-prog",
          "execl arg1 from foll-exec",
          "execl arg2 from foll-exec",
          (char *)0);
 
   {
     static char * argv[] = {
-      (char *)"gdb.base/execd-prog",
+      (char *)BASEDIR "/execd-prog",
       (char *)"execv arg1 from foll-exec",
       (char *)0};
 
     printf ("foll-exec is about to execv(execd-prog)...\n");
 
-    execv ("gdb.base/execd-prog", argv);
+    execv (BASEDIR "/execd-prog", argv);
   }
 }
diff --git a/gdb/testsuite/gdb.base/foll-exec.exp b/gdb/testsuite/gdb.base/foll-exec.exp
index 9456f42..135cad6 100644
--- a/gdb/testsuite/gdb.base/foll-exec.exp
+++ b/gdb/testsuite/gdb.base/foll-exec.exp
@@ -29,13 +29,17 @@ set testfile2 "execd-prog"
 set srcfile2 ${testfile2}.c
 set binfile2 [standard_output_file ${testfile2}]
 
+set compile_options debug
+set dirname [relative_filename [pwd] [file dirname $binfile]]
+lappend compile_options "additional_flags=-DBASEDIR=\"$dirname\""
+
 # build the first test case
-if  { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable $compile_options] != "" } {
      untested foll-exec.exp
      return -1
 }
 
-if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_options] != "" } {
      untested foll-exec.exp
      return -1
 }
diff --git a/gdb/testsuite/gdb.base/foll-vfork.c b/gdb/testsuite/gdb.base/foll-vfork.c
index 694843f..d7d72fd 100644
--- a/gdb/testsuite/gdb.base/foll-vfork.c
+++ b/gdb/testsuite/gdb.base/foll-vfork.c
@@ -29,7 +29,7 @@ main ()
   pid = vfork ();
   if (pid == 0) {
     printf ("I'm the child!\n");
-    execlp ("gdb.base/vforked-prog", "gdb.base/vforked-prog", (char *)0);
+    execlp (BASEDIR "/vforked-prog", BASEDIR "/vforked-prog", (char *)0);
     perror ("exec failed");
     _exit (1);
   }
diff --git a/gdb/testsuite/gdb.base/foll-vfork.exp b/gdb/testsuite/gdb.base/foll-vfork.exp
index 0660060..29d6da0 100644
--- a/gdb/testsuite/gdb.base/foll-vfork.exp
+++ b/gdb/testsuite/gdb.base/foll-vfork.exp
@@ -47,7 +47,11 @@ if [istarget "hppa*-hp-hpux10.20"] then {
 
 standard_testfile
 
-if {[build_executable $testfile.exp $testfile $srcfile {debug}] == -1} {
+set compile_options debug
+set dirname [relative_filename [pwd] [file dirname $binfile]]
+lappend compile_options "additional_flags=-DBASEDIR=\"$dirname\""
+
+if {[build_executable $testfile.exp $testfile $srcfile $compile_options] == -1} {
     untested "failed to compile $testfile"
     return -1
 }
@@ -55,7 +59,7 @@ if {[build_executable $testfile.exp $testfile $srcfile {debug}] == -1} {
 set testfile2 "vforked-prog"
 set srcfile2 ${testfile2}.c
 
-if {[build_executable $testfile.exp $testfile2 $srcfile2 {debug}] == -1} {
+if {[build_executable $testfile.exp $testfile2 $srcfile2 $compile_options] == -1} {
     untested "failed to compile $testfile2"
     return -1
 }