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d6ad07fdef
This adds more explanation as to why the test case must be compiled with the -msoft-float option. It also documents the my_tbegin and my_tend functions. gdb/testsuite/ChangeLog: * gdb.arch/s390-tdbregs.c (my_tbegin): Add comment documenting the function. (my_tend): Likewise. * gdb.arch/s390-tdbregs.exp: Enhance comment; explain the rationale of avoiding FP- and vector instructions.
68 lines
2.2 KiB
Plaintext
68 lines
2.2 KiB
Plaintext
# Copyright 2004-2018 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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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@gnu.org
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# This file is part of the gdb testsuite.
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if { ![istarget s390-*-*] && ![istarget s390x-*-* ] } {
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verbose "Skipping s390 TDB register tests."
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return
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}
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standard_testfile .c
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# The test case assumes that no FP- or vector instructions occur within
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# the transaction. Thus tell the compiler to use soft float, so it
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# doesn't emit them. Some GCC versions may otherwise do so, and an
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# endless loop would result.
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile \
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[list "debug" "additional_flags=-msoft-float"]] } {
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return -1
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}
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if { ![runto_main] } then {
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gdb_suppress_tests
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}
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gdb_test_multiple "next" "check for TE support" {
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-re "Program received signal SIGILL,.*\r\n$gdb_prompt $" {
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unsupported "no TE support."
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return
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}
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-re "\[0-9\]+.*\r\n$gdb_prompt $" {
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pass "TE support available"
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}
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-re "$gdb_prompt $" {
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unsupported "no TE support (unknown error)."
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return
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}
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}
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set crashline [gdb_get_line_number "FAULT"]
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gdb_test "print \$tdb0" "\\\$\[0-9\]+ = <unavailable>" "tdb0 unavailable"
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gdb_test "print \$tr0" "\\\$\[0-9\]+ = <unavailable>" "tr0 unavailable"
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gdb_test "next" \
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"Program received signal SIGSEGV, .*" \
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"crash in transaction"
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gdb_test "print/x \$tdb0" "\\\$\[0-9\]+ = 0x1.*" "tdb0 available"
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gdb_test "set print symbol-filename" "" "set print symbol-filename"
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gdb_test "print/a \$atia" \
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"<crash_in_transaction.*:$crashline>" \
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"ATIA points to crash"
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