diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index dc938a2e73..2d0a173695 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2020-01-29 Luis Machado + + * gdb.arch/aarch64-brk-patterns.c: New source file. + * gdb.arch/aarch64-brk-patterns.exp: New test. + 2020-01-29 Tankut Baris Aktemur * gdb.cp/pass-by-ref-2.exp: Mark some tests as XFAIL based on the diff --git a/gdb/testsuite/gdb.arch/aarch64-brk-patterns.c b/gdb/testsuite/gdb.arch/aarch64-brk-patterns.c new file mode 100644 index 0000000000..920ba8e2cb --- /dev/null +++ b/gdb/testsuite/gdb.arch/aarch64-brk-patterns.c @@ -0,0 +1,31 @@ +/* This file is part of GDB, the GNU debugger. + + Copyright 2020 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 . */ + +int +main (void) +{ + /* Dummy instruction just so GDB doesn't stop at the first breakpoint + instruction. */ + __asm __volatile ("nop\n\t"); + + /* Multiple BRK instruction patterns. */ + __asm __volatile ("brk %0\n\t" ::"n"(0x0)); + __asm __volatile ("brk %0\n\t" ::"n"(0x900 + 0xf)); + __asm __volatile ("brk %0\n\t" ::"n"(0xf000)); + + return 0; +} diff --git a/gdb/testsuite/gdb.arch/aarch64-brk-patterns.exp b/gdb/testsuite/gdb.arch/aarch64-brk-patterns.exp new file mode 100644 index 0000000000..5cb55da219 --- /dev/null +++ b/gdb/testsuite/gdb.arch/aarch64-brk-patterns.exp @@ -0,0 +1,69 @@ +# Copyright 2020 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 . +# +# This file is part of the gdb testsuite. + +# Test if GDB stops at various BRK instruction patterns inserted into +# the code. + +if {![is_aarch64_target]} { + verbose "Skipping ${gdb_test_file_name}." + return +} + +standard_testfile +if {[prepare_for_testing "failed to prepare" ${testfile} ${srcfile}]} { + return -1 +} + +if {![runto_main]} { + untested "could not run to main" + return -1 +} + +# Number of expected SIGTRAP's to get. This needs to be kept in sync +# with the source file. +set expected_traps 3 +set keep_going 1 +set count 0 + +# Make sure we have a lower timeout in case GDB doesn't support a particular +# instruction. Such instruction will cause GDB to loop infinitely. +while {$keep_going} { + # Continue to next program breakpoint instruction. + gdb_test_multiple "continue" "brk instruction $count causes SIGTRAP" { + -re "Program received signal SIGTRAP, Trace/breakpoint trap.*$gdb_prompt $" { + pass $gdb_test_name + + # Insert a breakpoint at the program breakpoint instruction so + # GDB can step over it. + gdb_test "break" \ + "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \ + "insert breakpoint at brk instruction $count" + incr count + } + # We've reached the end of the test. + -re "exited normally.*$gdb_prompt $" { + set keep_going 0 + } + timeout { + fail $gdb_test_name + set keep_going 0 + } + } +} + +# Verify we stopped at the expected number of SIGTRAP's. +gdb_assert {$count == $expected_traps} "all brk instructions triggered"