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author | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2008-11-18 21:39:47 +0000 |
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committer | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2008-11-18 21:39:47 +0000 |
commit | f80a18c208e78c0d84a81c6fef403c4503693c72 (patch) | |
tree | 82a61d02940046510b1f0162a12ba8dbf7b00da1 /gdb/testsuite/gdb.arch | |
parent | 1ecdcd8f58324b6b2a27e533f5507541f05acbd2 (diff) | |
download | gdb-f80a18c208e78c0d84a81c6fef403c4503693c72.tar.gz |
gdb/
* ppc-linux-nat.c (ppc_register_u_addr): Add special case to return
offset for full 64-bit slot of FPSCR when in 32-bits.
(ppc_linux_read_description): Return target description with 64-bit
FPSCR when inferior is running on an ISA 2.05 or later processor.
* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Call
initialize_tdec_powerpc_isa205_32l,
initialize_tdec_powerpc_isa205_altivec32l,
initialize_tdec_powerpc_isa205_vsx32l,
initialize_tdec_powerpc_isa205_64l,
initialize_tdec_powerpc_isa205_altivec64l and
initialize_tdec_powerpc_isa205_vsx64l.
* ppc-linux-tdep.h: Add external declaration for
tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l,
tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_isa205_64l,
tdesc_powerpc_isa205_altivec64l and tdesc_powerpc_isa205_vsx64l.
* features/rs600/powerpc-fpu-isa205.xml: New file.
* features/rs600/powerpc-isa205-32l.xml: New file.
* features/rs600/powerpc-isa205-64l.xml: New file.
* features/rs600/powerpc-isa205-altivec32l.xml: New file.
* features/rs600/powerpc-isa205-altivec64l.xml: New file.
* features/rs600/powerpc-isa205-vsx32l.xml: New file.
* features/rs600/powerpc-isa205-vsx64l.xml: New file.
* features/rs600/powerpc-isa205-32l.c: Generate.
* features/rs600/powerpc-isa205-64l.c: Generate.
* features/rs600/powerpc-isa205-altivec32l.c: Generate.
* features/rs600/powerpc-isa205-altivec64l.c: Generate.
* features/rs600/powerpc-isa205-vsx32l.c: Generate.
* features/rs600/powerpc-isa205-vsx64l.c: Generate.
gdb/testsuite/
* gdb.arch/ppc-dfp.exp: New file.
* gdb.arch/ppc-dfp.c: New file.
Diffstat (limited to 'gdb/testsuite/gdb.arch')
-rw-r--r-- | gdb/testsuite/gdb.arch/ppc-dfp.c | 46 | ||||
-rw-r--r-- | gdb/testsuite/gdb.arch/ppc-dfp.exp | 79 |
2 files changed, 125 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.arch/ppc-dfp.c b/gdb/testsuite/gdb.arch/ppc-dfp.c new file mode 100644 index 00000000000..da0e44e8389 --- /dev/null +++ b/gdb/testsuite/gdb.arch/ppc-dfp.c @@ -0,0 +1,46 @@ +/* Copyright 2008 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 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 <elf.h> + +#ifdef __powerpc64__ +typedef Elf64_auxv_t auxv_t; +#else +typedef Elf32_auxv_t auxv_t; +#endif + +#ifndef PPC_FEATURE_HAS_DFP +#define PPC_FEATURE_HAS_DFP 0x00000400 +#endif + +int +main (int argc, char *argv[], char *envp[], auxv_t auxv[]) +{ + int i; + + for (i = 0; auxv[i].a_type != AT_NULL; i++) + if (auxv[i].a_type == AT_HWCAP) { + if (!(auxv[i].a_un.a_val & PPC_FEATURE_HAS_DFP)) + return 1; + + break; + } + + asm ("mtfsfi 7, 5, 1\n"); /* Set DFP rounding mode. */ + + return 0; +} diff --git a/gdb/testsuite/gdb.arch/ppc-dfp.exp b/gdb/testsuite/gdb.arch/ppc-dfp.exp new file mode 100644 index 00000000000..3d87998e936 --- /dev/null +++ b/gdb/testsuite/gdb.arch/ppc-dfp.exp @@ -0,0 +1,79 @@ +# Copyright (C) 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/>. +# + +# Tests for Powerpc Decimal Floating Point registers setting and fetching + +if $tracelevel then { + strace $tracelevel +} + +if ![istarget "powerpc*"] then { + verbose "Skipping powerpc decimal floating point register tests." + return +} + +set testfile "ppc-dfp" +set binfile ${objdir}/${subdir}/${testfile} +set srcfile ${testfile}.c + +if [get_compiler_info $binfile] { + warning "get_compiler failed" + return -1 +} + +if ![test_compiler_info gcc*] { + # We use GCC's extended asm syntax + warning "unknown compiler" + return -1 +} + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { + unsupported "This machine doesn't support Decimal Floating Point." + return -1 +} + +# Start with a fresh gdb. + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + +gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."] + +gdb_run_cmd + +# When the prompt comes back we'll be at the Set DFP rounding mode breakpoint. +# Unless the program bails out after checking AT_HWCAP. +gdb_expect { + -re "Program exited with code 01.\[\r\n\]+$gdb_prompt $" { + unsupported "This machine doesn't support Decimal Floating Point." + return -1 + } + + -re ".*$gdb_prompt $" {} +} + +# First, verify if FPSCR is all zeroes. +gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes" + +# Step over "set rounding mode" instruction. +gdb_test "next" "" "" + +# Verify that the following bits are set (See Power ISA for details): +# +# 29:31 - DFP Rounding Control +gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode" |