From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30959 invoked by alias); 20 May 2005 03:43:02 -0000 Mailing-List: contact gdb-patches-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sources.redhat.com Received: (qmail 30709 invoked from network); 20 May 2005 03:42:55 -0000 Received: from unknown (HELO takamaka.act-europe.fr) (138.130.119.96) by sourceware.org with SMTP; 20 May 2005 03:42:55 -0000 Received: by takamaka.act-europe.fr (Postfix, from userid 507) id 1FEF247956; Fri, 20 May 2005 13:42:54 +1000 (EST) Date: Fri, 20 May 2005 07:02:00 -0000 From: Joel Brobecker To: gdb-patches@sources.redhat.com Subject: [testsuite/alpha] Add test for step over fbne instruction Message-ID: <20050520034254.GZ1462@adacore.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="tcC6YSqBgqqkz7Sb" Content-Disposition: inline User-Agent: Mutt/1.4i X-SW-Source: 2005-05/txt/msg00485.txt.bz2 --tcC6YSqBgqqkz7Sb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-length: 418 This is the testcase associated to the following patch: http://sources.redhat.com/ml/gdb-patches/2005-05/msg00479.html Without the patch above, the last two tests fail. With the patch, all tests pass. 2005-05-20 Joel Brobecker * gdb.arch/alpha-step.c: New file. * gdb.arch/alpha-step.exp: New testcase. Tested on alpha-tru64 5.1a. OK to commit? Thanks, -- Joel --tcC6YSqBgqqkz7Sb Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="alpha-step.c" Content-length: 2561 /* Copyright 2005 Free Software Foundation, Inc. This file is part of GDB. 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 2 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. */ void gt (void); int main (void) { gt (); return 0; } /* gt(). Obtained from the following code: void gt (void) { double a = 360.0; if (a > 0) a = 0.0; else a = -a; } The purpose of the test is to stop just before the check against zero, and do a stepi. GDB should step one instruction and stop, rather than letting the program continue until the it terminates. */ asm(" .rdata\n" " .align 3\n" "$SYMBOL_LC0:\n" " .long 0\n" " .long 1081507840\n" " .text\n" " .align 2\n" " .globl gt\n" " .ent gt\n" "gt:\n" " .frame $15,32,$26,0\n" " .mask 0x4008000,-32\n" "$SYMBOL_LM1:\n" " ldgp $29,0($27)\n" "$gt..ng:\n" " lda $30,-32($30)\n" " stq $26,0($30)\n" " stq $15,8($30)\n" " bis $31,$30,$15\n" " .prologue 1\n" "$SYMBOL_LM2:\n" " lda $1,$SYMBOL_LC0\n" " ldt $f10,0($1)\n" " stt $f10,16($15)\n" "$SYMBOL_LM3:\n" " ldt $f10,16($15)\n" " cmptlt $f31,$f10,$f10\n" " fbne $f10,$SYMBOL_L3\n" /* Stop at this instruction. */ " br $31,$SYMBOL_L2\n" "$SYMBOL_L3:\n" "$SYMBOL_LM4:\n" " stt $f31,16($15)\n" " br $31,$SYMBOL_L4\n" "$SYMBOL_L2:\n" "$SYMBOL_LM5:\n" " ldt $f10,16($15)\n" " cpysn $f10,$f10,$f10\n" " stt $f10,16($15)\n" "$SYMBOL_L4:\n" "$SYMBOL_LM6:\n" " bis $31,$15,$30\n" " ldq $26,0($30)\n" " ldq $15,8($30)\n" " lda $30,32($30)\n" " ret $31,($26),1\n" " .end gt\n"); --tcC6YSqBgqqkz7Sb Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="alpha-step.exp" Content-length: 2408 # Copyright 2005 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 2 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. if $tracelevel { strace $tracelevel } set prms_id 0 set bug_id 0 if ![istarget "alpha*-*-*"] then { verbose "Skipping alpha step tests." return } set testfile "alpha-step" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {}] != "" } { unsupported "Testcase compile failed." return -1 } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfile} if ![runto_main] then { fail "Can't run to main" return 0 } # Insert a breakpoint on a fbne instruction inside gt that we know is # at gt+48 (the body of gt has been written in assembly, so can not # change from compiler to compiler). This instruction will cause a jump # of a couple of instructions forward. Verify that this jump does not # confuse GDB when steping... gdb_test "break *gt+48" \ "Breakpoint 2 at .*" \ "breakpoint on fbne instruction" gdb_test "continue" \ "Breakpoint 2, 0x\[0-9a-fA-F\]+ in gt().*" \ "continue to fbne instruction" # Extra check to make sure we stopped on the fbne instruction. gdb_test "x /i \$pc" \ "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fbne\[ \t\]+.*" \ "Check breakpoint on fbne instruction" # Step test, should not cause the inferior to run until completion. gdb_test "stepi" \ "0x\[0-9a-fA-F\]+.*" \ "stepi on fbne" # Extra check to verify that we landed on the instruction we expected # (it should be an stt instruction). gdb_test "x /i \$pc" \ "0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+stt\[ \t\]+.*" \ "Check stopped on stt instruction" --tcC6YSqBgqqkz7Sb--