diff options
| -rw-r--r-- | gdb/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/ppc64-atomic-inst.c | 44 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.arch/ppc64-atomic-inst.exp | 66 |
3 files changed, 115 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 204caad..e39f566 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-01-31 Luis Machado <luisgpm@br.ibm.com> + + * gdb.arch/ppc64-atomic-inst.c: New testcase source file. + * gdb.arch/ppc64-atomic-inst.exp: New testcase expect file. + 2008-01-31 Pierre Muller <muller@ics.u-strasbg.fr> * gdb.pascal/integers.pas: New test program. diff --git a/gdb/testsuite/gdb.arch/ppc64-atomic-inst.c b/gdb/testsuite/gdb.arch/ppc64-atomic-inst.c new file mode 100644 index 0000000..3628e0f --- /dev/null +++ b/gdb/testsuite/gdb.arch/ppc64-atomic-inst.c @@ -0,0 +1,44 @@ +/* This file is part of GDB, the GNU debugger. + + Copyright 2008 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <stdio.h> + +int main() +{ + unsigned int word = 0; + unsigned int *word_addr = &word; + unsigned long dword = 0; + unsigned long *dword_addr = &dword; + + __asm __volatile ("1: lwarx %0,0,%2\n" \ + " addi %0,%0,1\n" \ + " stwcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (word), "=m" (*word_addr) \ + : "b" (word_addr), "m" (*word_addr) \ + : "cr0", "memory"); \ + + __asm __volatile ("1: ldarx %0,0,%2\n" \ + " addi %0,%0,1\n" \ + " stdcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (dword), "=m" (*dword_addr) \ + : "b" (dword_addr), "m" (*dword_addr) \ + : "cr0", "memory"); \ + + return 0; +} diff --git a/gdb/testsuite/gdb.arch/ppc64-atomic-inst.exp b/gdb/testsuite/gdb.arch/ppc64-atomic-inst.exp new file mode 100644 index 0000000..71b213c --- /dev/null +++ b/gdb/testsuite/gdb.arch/ppc64-atomic-inst.exp @@ -0,0 +1,66 @@ +# Copyright 2008 Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# This file is part of the gdb testsuite. + +if $tracelevel { + strace $tracelevel +} + +# Test single stepping through atomic sequences beginning with +# a lwarx/ldarx instruction and ending with a stwcx/stdcx +# instruction. + +set prms_id 0 +set bug_id 0 + +if ![istarget "powerpc64-*"] then { + verbose "Skipping testing of powerpc64 single stepping over atomic sequences." + return +} + +set testfile "ppc64-atomic-inst" +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} +set compile_flags "debug" + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [concat debug additional_flags=-m64]] != "" } { + unsupported "Testcase compile failed." + return -1 +} + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + +if ![runto_main] then { + perror "Couldn't run to breakpoint" + continue +} + +set bp1 [gdb_get_line_number "lwarx"] +gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \ + "Set the breakpoint at the start of the sequence" + +gdb_test continue "Continuing.*Breakpoint $decimal.*" \ + "Continue until breakpoint" + +gdb_test next ".*__asm __volatile.*" \ + "Step through the lwarx/stwcx sequence" + +gdb_test next ".*return 0.*" \ + "Step through the ldarx/stdcx sequence" |