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f94363d720
* mips-tdep.c (is_octeon): New function.
(is_octeon_bbit_op): New function.
(mips32_next_pc): Handle Octeon's bbit instructions.
(mips32_instruction_has_delay_slot): Likewise.
012-08-19 Andrew Pinski <apinski@cavium.com>
* gdb.arch/mips-octeon-bbit.c: New file.
* gdb.arch/mips-octeon-bbit.exp: New Test.
113 lines
2.7 KiB
Plaintext
113 lines
2.7 KiB
Plaintext
# Copyright 2007 Cavium Networks, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Test single-step on bbit.
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if ![istarget "*octeon*"] {
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return -1
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}
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proc current_insn {} {
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global gdb_prompt
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send_gdb "x/i \$pc\n"
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gdb_expect {
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-re ".*?:\\s+\(.*?\)\\s*$gdb_prompt $" {
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set insn $expect_out(1,string)
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return $insn
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}
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}
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return ""
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}
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proc single_step {} {
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global gdb_prompt
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send_gdb "si\n"
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gdb_expect {
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-re "$gdb_prompt \$" {
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return 1
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}
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}
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return 0;
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}
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proc single_step_until { match } {
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global timeout
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set insn [current_insn]
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set start [timestamp]
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while { $insn != "" && [timestamp] - $start < 3*$timeout } {
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if [regexp $match $insn] {
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return 1
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}
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if {![single_step]} {
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return 0
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}
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set insn [current_insn]
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}
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return 0;
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}
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proc test_bbit { name taken } {
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if {![single_step_until "bbit"]} {
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fail "$name single-step until bbit"
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return
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}
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pass "$name single-step until bbit"
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gdb_test "si" "" "$name single-step on bbit"
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if [regexp "li\\s+\[sv\]0,$taken" [current_insn]] {
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pass "$name check insn after bbit"
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} else {
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send_log "expected: li\\s+\[sv\]0,$taken found [current_insn]\n"
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fail "$name check insn after bbit"
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}
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}
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set testfile "mips-octeon-bbit"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
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{debug nowarnings}] != "" } {
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fail "compilation"
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return
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}
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pass "compilation"
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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# Native needs run.
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runto_main
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set tests ""
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foreach n [list "0_10" "0_36" "1_20" "1_49"] {
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lappend tests "bbit_is_taken_$n"
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}
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foreach func $tests {
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gdb_test "break $func" "Breakpoint.*at.*" "set breakpoint on $func"
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}
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foreach func $tests {
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gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func first"
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test_bbit "$func branch taken" 1
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gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func second"
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test_bbit "$func branch not taken" 0
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}
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