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Re: i386 floating point test case integration with gdb.reverse test-suite
- From: Hui Zhu <teawater at gmail dot com>
- To: paawan oza <paawan1982 at yahoo dot com>, Michael Snyder <msnyder at vmware dot com>
- Cc: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>
- Date: Thu, 10 Dec 2009 15:52:02 +0800
- Subject: Re: i386 floating point test case integration with gdb.reverse test-suite
- References: <774812.40206.qm@web112515.mail.gq1.yahoo.com>
Hi guys,
The attachment is a small update follow cvs.
I try this patch with x86 fp patch in ubuntu x86, everything is OK.
So..
Thanks,
Hui
On Sat, Aug 22, 2009 at 03:52, paawan oza <paawan1982@yahoo.com> wrote:
> Hi Michael,
> I have taken care most of your comments.
> please find the gdb.reverse test suite patch attached. and Changelog patch as well.
> Regards,
> Oza.
>
> --- On Mon, 8/17/09, Michael Snyder <msnyder@vmware.com> wrote:
>
>> From: Michael Snyder <msnyder@vmware.com>
>> Subject: Re: i386 floating point test case integration with gdb.reverse test-suite
>> To: "Michael Snyder" <msnyder@vmware.com>
>> Cc: "paawan oza" <paawan1982@yahoo.com>, "Hui Zhu" <teawater@gmail.com>, "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
>> Date: Monday, August 17, 2009, 3:11 AM
>> Michael Snyder wrote:
>>
>> > Thanks again for your hard work and patience.
>> > Michael
>>
>> Oh, and I forgot -- can we have a change log entry for
>> these?
>> There is a separate ChangeLog file for the test suite --
>> at
>> gdb/testsuite/ChangeLog.? All it needs is a mention of
>> adding
>> the new files.
>>
>>
>>
>>
>
>
>
---
Makefile.in | 2
i387-env-reverse.c | 60 ++++++++++++++++
i387-env-reverse.exp | 147 ++++++++++++++++++++++++++++++++++++++++
i387-stack-reverse.c | 38 ++++++++++
i387-stack-reverse.exp | 177 +++++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 423 insertions(+), 1 deletion(-)
--- a/Makefile.in
+++ b/Makefile.in
@@ -3,7 +3,7 @@ srcdir = @srcdir@
EXECUTABLES = break-reverse consecutive-reverse finish-reverse \
machinestate solib-reverse step-reverse until-reverse \
- watch-reverse i386-reverse
+ watch-reverse i386-reverse i387-stack-reverse i387-env-reverse
MISCELLANEOUS =
--- /dev/null
+++ b/i387-env-reverse.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+
+
+float no1,no2,no3,no4,no5,no6,no7;
+float result,resultd,resultld;
+float *float_memory;
+long double ldx = 88888888888888888888.88, ldy = 9999999999999999999.99;
+double x = 100.345, y = 25.7789;
+/* marks FPU stack as empty */
+void empty_fpu_stack()
+{
+ asm ("ffree %st(1) \n\t"
+ "ffree %st(2) \n\t"
+ "ffree %st(3) \n\t"
+ "ffree %st(4) \n\t"
+ "ffree %st(5) \n\t"
+ "ffree %st(6) \n\t"
+ "ffree %st(7)");
+}
+
+/* initialization of floats */
+void init_floats()
+{
+ no1 = 10.45;
+ no2 = 20.77;
+ no3 = 156.89874646;
+ no4 = 14.56;
+ no5 = 11.11;
+ no6 = 66.77;
+ no7 = 88.88;
+ float_memory = malloc(sizeof(float) * 4);
+ *float_memory = 256.256;
+ *(float_memory + 1) = 356.356;
+ *(float_memory + 2) = 456.456;
+ *(float_memory + 3) = 556.556;
+}
+
+int main()
+{
+ init_floats();
+ empty_fpu_stack(); /* BEGIN I387-FLOAT-REVERSE */
+
+ asm("nop"); /* TEST ENV */
+ asm ("fsave %0" : "=m"(*float_memory) : );
+ asm ("frstor %0" : : "m"(*float_memory));
+ asm ("fstsw %ax"); /* test eax register */
+
+ asm ("fld1");
+ asm ("fldl2t");
+ asm ("fldl2e");
+ asm ("fldpi");
+ asm ("fldlg2");
+ asm ("fldln2");
+ asm ("fldz");
+ asm ("nop");
+
+ return 1; /* END I387-FLOAT-REVERSE */
+}
--- /dev/null
+++ b/i387-env-reverse.exp
@@ -0,0 +1,147 @@
+# Copyright 2009 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/>.
+
+# This file is part of the gdb testsuite.
+
+if $tracelevel {
+ strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+if ![istarget "i?86-*linux*"] then {
+ verbose "Skipping i387 reverse float tests."
+ return
+}
+
+set testfile "i387-env-reverse"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+# some targets have leading underscores on assembly symbols.
+# TODO: detect this automatically
+set additional_flags ""
+if [istarget "i?86-*-cygwin*"] then {
+ set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
+ untested i387-float-reverse
+ return -1
+}
+
+# Get things started.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+runto main
+
+# Record to end of main
+
+set location [gdb_get_line_number "END I387-FLOAT-REVERSE"]
+gdb_test "record" "" "Turn on process record"
+gdb_test "until $location" ".*/$srcfile:$location.*" \
+ "record to end of main"
+
+# Now rewind to beginning so we can begin testing.
+
+set location [gdb_get_line_number "BEGIN I387-FLOAT-REVERSE"]
+gdb_test "set exec-dir reverse" "" "set reverse direction"
+gdb_test "until $location" ".*/$srcfile:$location.*" \
+ "rewind to beginning of main"
+gdb_test "set exec-dir forward" "" "set forward direction"
+
+# Test FPU env particularly ftag and fstatus reigters.
+
+set location [gdb_get_line_number "TEST ENV"]
+gdb_test "until $location" ".*/$srcfile:$location.*asm.*nop.*" \
+ "begin testing fpu env"
+
+gdb_test "n" "asm.*fsave.*" "save FPU env in memory"
+gdb_test "n" "asm.*frstor.*" "restore FPU env"
+gdb_test "n" "asm.*fstsw.*" "store status word in EAX"
+gdb_test "n" "asm.*fld1.*" "push st0"
+
+gdb_test "info register eax" "eax *0x8040000.*\t.*" "verify eax == 0x8040000"
+gdb_test "info register fstat" "fstat *0.*\t.*" "verify fstat == 0"
+gdb_test "info register ftag" "ftag *0xffff.*\t.*" "verify ftag == 0xffff"
+
+gdb_test "stepi" "asm.*fldl2t.*" "push st0"
+gdb_test "info register fstat" "fstat *0x3800.*\t.*" "verify fstat == 0x3800"
+gdb_test "info register ftag" "ftag *0x3fff.*\t.*" "verify ftag == 0x3fff"
+
+gdb_test "stepi" "asm.*fldl2e.*" "push st0"
+gdb_test "info register fstat" "fstat *0x3000.*\t.*" "verify fstat == 0x3000"
+gdb_test "info register ftag" "ftag *0xfff.*\t.*" "verify ftag == 0xfff"
+
+gdb_test "stepi" "asm.*fldpi.*" "push st0"
+gdb_test "info register fstat" "fstat *0x2800.*\t.*" "verify fstat == 0x2800"
+gdb_test "info register ftag" "ftag *0x3ff.*\t.*" "verify ftag == 0x3ff"
+
+gdb_test "stepi" "asm.*fldlg2.*" "push st0"
+gdb_test "info register fstat" "fstat *0x2000.*\t.*" "verify fstat == 0x2000"
+gdb_test "info register ftag" "ftag *0xff.*\t.*" "verify ftag == 0xff"
+
+gdb_test "stepi" "asm.*fldln2.*" "push st0"
+gdb_test "info register fstat" "fstat *0x1800.*\t.*" "verify fstat == 0x1800"
+gdb_test "info register ftag" "ftag *0x3f.*\t.*" "verify ftag == 0x3f"
+
+gdb_test "stepi" "asm.*fldz.*" "push st0"
+gdb_test "info register fstat" "fstat *0x1000.*\t.*" "verify fstat == 0x1000"
+gdb_test "info register ftag" "ftag *0xf.*\t.*" "verify ftag == 0xf"
+
+gdb_test "stepi" "asm.*nop.*" "push st0"
+gdb_test "info register fstat" "fstat *0x800.*\t.*" "verify fstat == 0x800"
+gdb_test "info register ftag" "ftag *0x7.*\t.*" "verify ftag == 0x7"
+
+
+# move backward and ehck we get the same registers back.
+
+gdb_test "reverse-stepi" "asm.*fldz.*" "push st0"
+gdb_test "info register fstat" "fstat *0x1000.*\t.*" "verify fstat == 0x1000"
+gdb_test "info register ftag" "ftag *0xf.*\t.*" "verify ftag == 0xf"
+
+gdb_test "reverse-stepi" "asm.*fldln2.*" "push st0"
+gdb_test "info register fstat" "fstat *0x1800.*\t.*" "verify fstat == 0x1800"
+gdb_test "info register ftag" "ftag *0x3f.*\t.*" "verify ftag == 0x3f"
+
+gdb_test "reverse-stepi" "asm.*fldlg2.*" "push st0"
+gdb_test "info register fstat" "fstat *0x2000.*\t.*" "verify fstat == 0x2000"
+gdb_test "info register ftag" "ftag *0xff.*\t.*" "verify ftag == 0xff"
+
+gdb_test "reverse-stepi" "asm.*fldpi.*" "push st0"
+gdb_test "info register fstat" "fstat *0x2800.*\t.*" "verify fstat == 0x2800"
+gdb_test "info register ftag" "ftag *0x3ff.*\t.*" "verify ftag == 0x3ff"
+
+gdb_test "reverse-stepi" "asm.*fldl2e.*" "push st0"
+gdb_test "info register fstat" "fstat *0x3000.*\t.*" "verify fstat == 0x3000"
+gdb_test "info register ftag" "ftag *0xfff.*\t.*" "verify ftag == 0xfff"
+
+gdb_test "reverse-stepi" "asm.*fldl2t.*" "push st0"
+gdb_test "info register fstat" "fstat *0x3800.*\t.*" "verify fstat == 0x3800"
+gdb_test "info register ftag" "ftag *0x3fff.*\t.*" "verify ftag == 0x3fff"
+
+gdb_test "reverse-stepi" "asm.*fld1.*" "push st0"
+gdb_test "info register fstat" "fstat *0.*\t.*" "verify fstat == 0"
+gdb_test "info register ftag" "ftag *0xffff.*\t.*" "verify ftag == 0xffff"
+
+
+
+
+
+
--- /dev/null
+++ b/i387-stack-reverse.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+
+/* marks FPU stack as empty */
+void empty_fpu_stack()
+{
+ asm ("ffree %st(1) \n\t"
+ "ffree %st(2) \n\t"
+ "ffree %st(3) \n\t"
+ "ffree %st(4) \n\t"
+ "ffree %st(5) \n\t"
+ "ffree %st(6) \n\t"
+ "ffree %st(7)");
+}
+
+/* tests floating point arithmatic */
+void test_arith_floats()
+{
+
+}
+
+int main()
+{
+ empty_fpu_stack(); /* BEGIN I387-FLOAT-REVERSE */
+
+ asm ("fld1"); /* test st0 register */
+ asm ("fldl2t"); /* test st0, st1 */
+ asm ("fldl2e"); /* test st0, st1, st2 */
+ asm ("fldpi"); /* test st0, st1, st2, st3 */
+ asm ("fldlg2"); /* test st0, st1, st2, st3, st4 */
+ asm ("fldln2"); /* test st0, st1, st2, st3, st4, st5 */
+ asm ("fldz"); /* test st0, st1, st2, st3, st4, st5, st6 */
+ asm ("fld1"); /* test st0, st1, st2, st3, st4, st5, st6, st7 */
+ asm ("nop");
+
+ return 1; /* END I387-FLOAT-REVERSE */
+}
--- /dev/null
+++ b/i387-stack-reverse.exp
@@ -0,0 +1,177 @@
+# Copyright 2009 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/>.
+
+# This file is part of the gdb testsuite.
+
+if $tracelevel {
+ strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+if ![istarget "i?86-*linux*"] then {
+ verbose "Skipping i387 reverse float tests."
+ return
+}
+
+set testfile "i387-stack-reverse"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+# some targets have leading underscores on assembly symbols.
+# TODO: detect this automatically
+set additional_flags ""
+if [istarget "i?86-*-cygwin*"] then {
+ set additional_flags "additional_flags=-DSYMBOL_PREFIX=\"_\""
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug $additional_flags]] != "" } {
+ untested i387-float-reverse
+ return -1
+}
+
+# Get things started.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+runto main
+
+# Record to end of main
+
+set location [gdb_get_line_number "END I387-FLOAT-REVERSE"]
+gdb_test "record" "" "Turn on process record"
+gdb_test "until $location" ".*/$srcfile:$location.*" \
+ "record to end of main"
+
+# Now rewind to beginning so we can begin testing.
+
+set location [gdb_get_line_number "BEGIN I387-FLOAT-REVERSE"]
+gdb_test "set exec-dir reverse" "" "set reverse direction"
+gdb_test "until $location" ".*/$srcfile:$location.*" \
+ "rewind to beginning of main"
+gdb_test "set exec-dir forward" "" "set forward direction"
+
+# Test FPU stack. FPU stack includes st0, st1, st2, st3, st4,
+# st5, st6, st7. We push 8 values to FPU stack in record mode
+# and see whether all are getting recorded.
+
+set location [gdb_get_line_number "test st0 register"]
+gdb_test "until $location" ".*/$srcfile:$location.*asm.*fld1.*" \
+ "begin test st0"
+gdb_test "stepi" "asm.*fldl2t.*" "push st0 == 1"
+gdb_test "info register st0" "st0 *1\t.*" "verify st0 == 1"
+
+
+gdb_test "stepi" "asm.*fldl2e.*" "push st0 == 3.3219280948*"
+gdb_test "info register st0" "st0 *3.32192.*\t.*" "verify st0 == 3.321928094*"
+gdb_test "info register st1" "st1 *1\t.*" "verify st1 == 1"
+
+gdb_test "stepi" "asm.*fldpi.*" "push st0 == 1.4426950406*"
+gdb_test "info register st0" "st0 *1.44269.*\t.*" "verify st0 == 1.442695040*"
+gdb_test "info register st1" "st1 *3.32192.*\t.*" "verify st1 == 3.3219280948*"
+gdb_test "info register st2" "st2 *1\t.*" "verify st2 == 1"
+
+gdb_test "stepi" "asm.*fldlg2.*" "push st0 == 3.14159265*"
+gdb_test "info register st0" "st0 *3.14159.*\t.*" "verify st0 == 3.14159265*"
+gdb_test "info register st1" "st1 *1.44269.*\t.*" "verify st1 == 1.4426950*"
+gdb_test "info register st2" "st2 *3.32192.*\t.*" "verify st2 == 3.3219280*"
+gdb_test "info register st3" "st3 *1\t.*" "verify st3 == 1"
+
+gdb_test "stepi" "asm.*fldln2.*" "push st0 == 0.301029*"
+gdb_test "info register st0" "st0 *0.30102.*\t.*" "verify st0 == 0.301029*"
+gdb_test "info register st1" "st1 *3.14159.*\t.*" "verify st1 == 3.14159265*"
+gdb_test "info register st2" "st2 *1.44269.*\t.*" "verify st2 == 1.44269506*"
+gdb_test "info register st3" "st3 *3.32192.*\t.*" "verify st3 == 3.3219280948*"
+gdb_test "info register st4" "st4 *1\t.*" "verify st4 == 1"
+
+gdb_test "stepi" "asm.*fldz.*" "push st0 == 0.69314*"
+gdb_test "info register st0" "st0 *0.69314.*\t.*" "verify st0 == 0.69314*"
+gdb_test "info register st1" "st1 *0.30102.*\t.*" "verify st1 == 0.301029*"
+gdb_test "info register st2" "st2 *3.14159.*\t.*" "verify st2 == 3.14159265*"
+gdb_test "info register st3" "st3 *1.44269.*\t.*" "verify st3 == 1.442695040*"
+gdb_test "info register st4" "st4 *3.32192.*\t.*" "verify st4 == 3.3219280948*"
+gdb_test "info register st5" "st5 *1\t.*" "verify st5 == 1"
+
+gdb_test "stepi" "asm.*fld1.*" "push st0 == 0"
+gdb_test "info register st0" "st0 *0\t.*" "verify st0 == 0"
+gdb_test "info register st1" "st1 *0.69314.*\t.*" "verify st1 == 0.69314*"
+gdb_test "info register st2" "st2 *0.30102.*\t.*" "verify st2 == 0.301029*"
+gdb_test "info register st3" "st3 *3.14159.*\t.*" "verify st3 == 3.14159265*"
+gdb_test "info register st4" "st4 *1.44269.*\t.*" "verify st4 == 1.442695040*"
+gdb_test "info register st5" "st5 *3.32192.*\t.*" "verify st5 == 3.32192809*"
+gdb_test "info register st6" "st6 *1\t.*" "verify st6 == 1"
+
+gdb_test "stepi" "asm.*nop.*" "push st0 == 0"
+gdb_test "info register st0" "st0 *1\t.*" "verify st0 == 1"
+gdb_test "info register st1" "st1 *0\t.*" "verify st1 == 0"
+gdb_test "info register st2" "st2 *0.69314.*\t.*" "verify st2 == 0.69314*"
+gdb_test "info register st3" "st3 *0.30102.*\t.*" "verify st3 == 0.301029*"
+gdb_test "info register st4" "st4 *3.14159.*\t.*" "verify st4 == 3.14159265*"
+gdb_test "info register st5" "st5 *1.44269.*\t.*" "verify st5 == 1.44269504*"
+gdb_test "info register st6" "st6 *3.32192.*\t.*" "verify st6 == 3.3219280948*"
+gdb_test "info register st7" "st7 *1.*" "verify st7 == 1"
+
+# Now step backward, and check that st0 value reverts to zero.
+
+gdb_test "reverse-stepi" "asm.*fld1.*" "undo registers, st0-st7"
+gdb_test "info register st0" "st0 *0\t.*" "verify st0 == 0"
+gdb_test "info register st1" "st1 *0.69314.*\t.*" "verify st1 == 0.69314*"
+gdb_test "info register st2" "st2 *0.30102.*\t.*" "verify st2 == 0.301029*"
+gdb_test "info register st3" "st3 *3.14159.*\t.*" "verify st3 == 3.14159265*"
+gdb_test "info register st4" "st4 *1.44269.*\t.*" "verify st4 == 1.442695040*"
+gdb_test "info register st5" "st5 *3.32192.*\t.*" "verify st5 == 3.3219280948*"
+gdb_test "info register st6" "st6 *1\t.*" "verify st6 == 1"
+
+gdb_test "reverse-stepi" "asm.*fldz.*" "push st0 == 0.69314*"
+gdb_test "info register st0" "st0 *0.69314.*\t.*" "verify st0 == 0.69314*"
+gdb_test "info register st1" "st1 *0.30102.*\t.*" "verify st1 == 0.301029*"
+gdb_test "info register st2" "st2 *3.14159.*\t.*" "verify st2 == 3.14159265*"
+gdb_test "info register st3" "st3 *1.44269.*\t.*" "verify st3 == 1.442695040*"
+gdb_test "info register st4" "st4 *3.32192.*\t.*" "verify st4 == 3.3219280948*"
+gdb_test "info register st5" "st5 *1\t.*" "verify st5 == 1"
+
+gdb_test "reverse-stepi" "asm.*fldln2.*" "push st0 == 0.301029*"
+gdb_test "info register st0" "st0 *0.30102.*\t.*" "verify st0 == 0.301029*"
+gdb_test "info register st1" "st1 *3.14159.*\t.*" "verify st1 == 3.14159265*"
+gdb_test "info register st2" "st2 *1.44269.*\t.*" "verify st2 == 1.442695040*"
+gdb_test "info register st3" "st3 *3.32192.*\t.*" "verify st3 == 3.3219280948*"
+gdb_test "info register st4" "st4 *1\t.*" "verify st4 == 1"
+
+gdb_test "reverse-stepi" "asm.*fldlg2.*" "push st0 == 3.14159265*"
+gdb_test "info register st0" "st0 *3.14159.*\t.*" "verify st0 == 3.14159265*"
+gdb_test "info register st1" "st1 *1.44269.*\t.*" "verify st1 == 1.442695040*"
+gdb_test "info register st2" "st2 *3.32192.*\t.*" "verify st2 == 3.3219280948*"
+gdb_test "info register st3" "st3 *1\t.*" "verify st3 == 1"
+
+gdb_test "reverse-stepi" "asm.*fldpi.*" "push st0 == 1.44269504088*"
+gdb_test "info register st0" "st0 *1.44269.*\t.*" "verify st0 == 1.442695040*"
+gdb_test "info register st1" "st1 *3.32192.*\t.*" "verify st1 == 3.3219280948*"
+gdb_test "info register st2" "st2 *1\t.*" "verify st2 == 1"
+
+
+gdb_test "reverse-stepi" "asm.*fldl2e.*" "push st0 == 3.3219280948*"
+gdb_test "info register st0" "st0 *3.32192.*\t.*" "verify st0 == 3.3219280948*"
+gdb_test "info register st1" "st1 *1\t.*" "verify st1 == 1"
+
+gdb_test "reverse-stepi" "asm.*fldl2t.*" "push st0 == 1"
+gdb_test "info register st0" "st0 *1\t.*" "verify st0 == 1"
+
+
+
+
+