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108 lines
3.5 KiB
Plaintext
108 lines
3.5 KiB
Plaintext
# Copyright 2005-2018 Free Software Foundation, 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 3 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, see <http://www.gnu.org/licenses/>.
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if ![istarget "alpha*-*-*"] then {
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verbose "Skipping alpha step tests."
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return
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}
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set testfile "alpha-step"
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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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unsupported "failed to compile"
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return -1
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}
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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 ${binfile}
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proc test_stepi {function } {
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# Restart the program from scratch. If GDB got confused during one
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# of the previous tests, this makes sure that it doesn't affect
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# this series of tests.
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if ![runto_main] then {
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fail "can't run to main"
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return 0
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}
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# Insert a breakpoint on the FP branch instruction inside FUNCTION.
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# Since the function has been hand written, we know this instruction
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# is a "fb$function" located at FUNCTION+4.
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gdb_test "break *$function+4" \
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"Breakpoint .* at .*" \
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"breakpoint on fb$function instruction"
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gdb_test "continue" \
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"Breakpoint .*, 0x\[0-9a-fA-F\]+ in $function\(\).*" \
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"continue to fb$function instruction (first call)"
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# Extra check to make sure we stopped on the FP branch instruction.
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gdb_test "x /i \$pc" \
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"0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fb$function.*" \
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"Check breakpoint on fb$function instruction (first call)"
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# Step test, followed by the check that we landed on the expected
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# instruction (the testcase should be written in such a way that
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# the branch is taken on the first call to this function.
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gdb_test "stepi" \
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"0x\[0-9a-fA-F\]+.*" \
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"stepi on fb$function (first call)"
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gdb_test "x /i \$pc" \
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"0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+ret.*" \
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"Check stepi over fb$function stopped on ret"
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# Continue again. FUNCTION should be called a second time, this time
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# with an argument such that the FP branch will not be taken.
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gdb_test "continue" \
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"Breakpoint .*, 0x\[0-9a-fA-F\]+ in $function\(\).*" \
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"continue to fb$function instruction (second call)"
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# Extra check to make sure we stopped on the FP branch instruction.
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gdb_test "x /i \$pc" \
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"0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fb$function.*" \
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"Check breakpoint on fb$function instruction (second call)"
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# Step test, branch should not be taken.
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gdb_test "stepi" \
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"0x\[0-9a-fA-F\]+.*" \
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"stepi on fb$function (branch not taken)"
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# Extra check to verify that we landed on the instruction we expected.
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gdb_test "x /i \$pc" \
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"0x\[0-9a-fA-F\]+ <.*>:\[ \t\]+fneg.*" \
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"check stepi over fb$function stopped on fneg instruction"
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}
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test_stepi "gt"
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test_stepi "ge"
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test_stepi "lt"
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test_stepi "le"
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test_stepi "eq"
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test_stepi "ne"
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