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Since upstream gcc has recently increased the function alignment on 

S390, the dw2-dir-file-name test case fails in the first
gdb_continue_to_breakpoint.  Indeed, the breakpoint is now placed into
the alignment gap *before* the actual function.

This happens because the test case declares the respective "*_start"
symbol as a "loose" label before the function definition, and the
compiler inserts the alignment between that label and the function
itself.

The "*_start" symbols were only necessary because FUNC made the
function static.  The fix makes the functions extern instead, thus
making the "*_start" labels unnecessary.

testsuite/
2014-01-10  Andreas Arnez  <arnez@linux.vnet.ibm.com>
	    Pedro Alves <palves@redhat.com>

	* gdb.dwarf2/dw2-dir-file-name.c (FUNC): Remove "*_start" symbol.
	Make "name" extern.
	* gdb.dwarf2/dw2-dir-file-name.exp (out_cu, out_line): Replace
	references to ${name}_start by references to ${name}.
This commit is contained in:
Andreas Arnez 2014-01-10 15:37:36 +00:00 committed by Pedro Alves
parent eec2f3ed9f
commit 52d7fb1303
3 changed files with 12 additions and 5 deletions
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8
gdb/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2014-01-10 Andreas Arnez <arnez@linux.vnet.ibm.com>
Pedro Alves <palves@redhat.com>
* gdb.dwarf2/dw2-dir-file-name.c (FUNC): Remove "*_start" symbol.
Make "name" extern.
* gdb.dwarf2/dw2-dir-file-name.exp (out_cu, out_line): Replace
references to ${name}_start by references to ${name}.
2014-01-10 Joel Brobecker <brobecker@adacore.com>
* gdb.ada/pp-rec-component.exp: Remove path from "source" test.

3
gdb/testsuite/gdb.dwarf2/dw2-dir-file-name.c
View File

@ -64,8 +64,7 @@ FUNC (compdir_absolute_ldir_absolute_file_absolute_same) \
FUNC (compdir_absolute_ldir_absolute_file_absolute_different)
#define FUNC(name) \
asm (#name "_start: .globl " #name "_start\n"); \
static void \
void \
name (void) \
{ \
v++; \

6
gdb/testsuite/gdb.dwarf2/dw2-dir-file-name.exp
View File

@ -54,7 +54,7 @@ proc out_cu { name cu_dir cu_name line_dir line_name } {
.ascii \"GNU C\\0\" /* DW_AT_producer */
.byte 2 /* DW_AT_language (DW_LANG_C) */
.4byte .Lline_${name}_begin /* DW_AT_stmt_list */
.4byte ${name}_start /* DW_AT_low_pc */
.4byte ${name} /* DW_AT_low_pc */
.4byte ${name}_end /* DW_AT_high_pc */
"
if { $cu_dir != "" } {
@ -65,7 +65,7 @@ proc out_cu { name cu_dir cu_name line_dir line_name } {
.uleb128 3 /* Abbrev: DW_TAG_subprogram */
.asciz \"${name}\" /* DW_AT_name */
.4byte ${name}_start /* DW_AT_low_pc */
.4byte ${name} /* DW_AT_low_pc */
.4byte ${name}_end /* DW_AT_high_pc */
.byte 0 /* End of children of CU */
@ -122,7 +122,7 @@ proc out_line { name cu_dir cu_name line_dir line_name } {
.byte 0 /* DW_LNE_set_address */
.uleb128 5
.byte 2
.4byte ${name}_start
.4byte ${name}
.byte 1 /* DW_LNS_copy */
.byte 3 /* DW_LNS_advance_line */
.sleb128 1 /* ... to 1000 */