Fix dw2-ifort-parameter.exp fail with clang

The patch <https://sourceware.org/ml/gdb-patches/2014-03/msg00202.html>
fixed dw2-ifort-parameter.exp on powerpc64 by adding some labels to
get the start and end address of function func.  This should also fix the
fail on thumb mode, however, this style is quite specific to gcc, and
other compiler, such as clang, may not guarantee the order of global
asms and functions.  The test fails with clang:

$ make check RUNTESTFLAGS='dw2-ifort-parameter.exp CC_FOR_TARGET=clang'
(gdb) p/x param^M
No symbol "param" in current context.^M
(gdb) FAIL: gdb.dwarf2/dw2-ifort-parameter.exp: p/x param

With this patch applied, dw2-ifort-parameter.exp still passes for gcc
on arm thumb mode and popwerpc64, and it also passes for clang on
x86_linux.

gdb/testsuite:

2014-11-14  Yao Qi  <yao@codesourcery.com>

	* gdb.dwarf2/dw2-ifort-parameter.c: Remove inline asm.
	(func): Add label func_label.
	* gdb.dwarf2/dw2-ifort-parameter.exp (Dwarf::assemble):
	Replace low_pc and high_pc with MACRO_AT_range.
	Replace name, low_pc and high_pc with MACRO_AT_func.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 378826d7ad27350a8f6e19f393715910a00d6fcb..ce9c8192c0f5342e538486ad17d07a62fae06190 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+2014-11-14  Yao Qi  <yao@codesourcery.com>
+
+       * gdb.dwarf2/dw2-ifort-parameter.c: Remove inline asm.
+       (func): Add label func_label.
+       * gdb.dwarf2/dw2-ifort-parameter.exp (Dwarf::assemble):
+       Replace low_pc and high_pc with MACRO_AT_range.
+       Replace name, low_pc and high_pc with MACRO_AT_func.
+
 2014-11-14  Yao Qi  <yao@codesourcery.com>
 
        * gdb.dwarf2/implptr-optimized-out.exp (Dwarf::assemble):

diff --git a/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.c b/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.c
index 447481476794a2fe534a840d37424e988313825c..4918d7e76c7d119000b2a6d81fa9005bd0a3e90a 100644 (file)
--- a/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.c
+++ b/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.c
@@ -18,17 +18,12 @@
 int value = 0xdeadf00d;
 int *ptr = &value;
 
-asm (".section \".text\"");
-asm (".balign 8");
-asm ("func_start: .globl func_start");
-
 static void
 func (void)
 {
+  asm ("func_label: .globl func_label");
 }
 
-asm ("func_end: .globl func_end");
-
 int
 main (void)
 {

diff --git a/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.exp b/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.exp
index 026e071e7c1709d48776701b9c5d144c0b96e570..85a6ddd4cf1562768444e0ec14ff02bc82ebfcd6 100644 (file)
--- a/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.exp
+++ b/gdb/testsuite/gdb.dwarf2/dw2-ifort-parameter.exp
@@ -30,13 +30,13 @@ Dwarf::assemble $asm_file {
     declare_labels int_label
 
     extern func_start func_end ptr
+    global srcdir subdir srcfile
 
     cu {} {
        compile_unit {
            {name file1.txt}
            {language @DW_LANG_C}
-           {low_pc func_start addr}
-           {high_pc func_end addr}
+           {MACRO_AT_range { func ${srcdir}/${subdir}/${srcfile} }}
        } {
            int_label: base_type {
                {name int}
@@ -46,9 +46,7 @@ Dwarf::assemble $asm_file {
 
            subprogram {
                {external 1 flag}
-               {name func}
-               {low_pc func_start addr}
-               {high_pc func_end addr}
+               {MACRO_AT_func { func ${srcdir}/${subdir}/${srcfile} }}
            } {
                formal_parameter {
                    {name param}