4f51c22aca
This test case makes sure that relocating PC relative instructions does not change their behaviors. All PC relative AArch64 instructions are covered. While call and jump (32 bit relative) instructions are covered on x86. The test case creates a static array of function pointers for each supported architecture. Each function in this array tests a specific instruction using inline assembly. They all need to contain a symbol in the form of 'set_point\[0-9\]+' and finish by either calling pass or fail. The number of 'set_pointN' needs to go from 0 to (ARRAY_SIZE - 1). The test will: - look up the number of function pointers in the static array. - set fast tracepoints on each 'set_point\[0-9\]+' symbol, one in each functions from 0 to (ARRAY_SIZE - 1). - run the trace experiment and make sure the pass function is called for every function. gdb/testsuite/ChangeLog: * gdb.arch/insn-reloc.c: New file. * gdb.arch/ftrace-insn-reloc.exp: New file.
114 lines
3.2 KiB
Text
114 lines
3.2 KiB
Text
# Copyright 2015 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/>.
|
|
|
|
load_lib "trace-support.exp"
|
|
|
|
standard_testfile insn-reloc.c
|
|
set executable $testfile
|
|
set expfile $testfile.exp
|
|
|
|
# Some targets have leading underscores on assembly symbols.
|
|
set additional_flags [gdb_target_symbol_prefix_flags]
|
|
|
|
if [prepare_for_testing $expfile $executable $srcfile \
|
|
[list debug $additional_flags]] {
|
|
untested "failed to prepare for trace tests"
|
|
return -1
|
|
}
|
|
|
|
if ![runto_main] {
|
|
fail "Can't run to main to check for trace support"
|
|
return -1
|
|
}
|
|
|
|
if ![gdb_target_supports_trace] {
|
|
unsupported "target does not support trace"
|
|
return -1
|
|
}
|
|
|
|
set libipa [get_in_proc_agent]
|
|
gdb_load_shlibs $libipa
|
|
|
|
# Can't use prepare_for_testing, because that splits compiling into
|
|
# building objects and then linking, and we'd fail with "linker input
|
|
# file unused because linking not done" when building the object.
|
|
|
|
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
|
|
executable [list debug $additional_flags shlib=$libipa] ] != "" } {
|
|
untested "failed to compile ftrace tests"
|
|
return -1
|
|
}
|
|
clean_restart ${executable}
|
|
|
|
if ![runto_main] {
|
|
fail "Can't run to main for ftrace tests"
|
|
return 0
|
|
}
|
|
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
|
|
if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
|
|
untested "Could not find IPA lib loaded"
|
|
return 1
|
|
}
|
|
|
|
# Read function name from testcases[N].
|
|
|
|
proc read_testcase { n } {
|
|
global gdb_prompt
|
|
|
|
set result -1
|
|
gdb_test_multiple "print testcases\[${n}\]" "read name of test case ${n}" {
|
|
-re "\[$\].*= .*<(.*)>.*$gdb_prompt $" {
|
|
set result $expect_out(1,string)
|
|
}
|
|
-re "$gdb_prompt $" { }
|
|
}
|
|
|
|
return $result
|
|
}
|
|
|
|
set n_testcases [gdb_readexpr "n_testcases"]
|
|
|
|
if { ${n_testcases} == 0 } {
|
|
untested "No instruction relocation to test"
|
|
return 1
|
|
}
|
|
|
|
# Set a fast tracepoint on each set_point${i} symbol. There is one for
|
|
# each testcase.
|
|
for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
|
|
set testcase [read_testcase $i]
|
|
|
|
gdb_test "ftrace *set_point$i" "Fast tracepoint .*" \
|
|
"fast tracepoint on ${testcase}"
|
|
}
|
|
|
|
gdb_test "break pass" ".*" ""
|
|
gdb_test "break fail" ".*" ""
|
|
|
|
gdb_test_no_output "tstart" "start trace experiment"
|
|
|
|
# Make sure we have hit the pass breakpoint for each testcase.
|
|
for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
|
|
set testcase [read_testcase $i]
|
|
|
|
gdb_test "continue" \
|
|
".*Breakpoint \[0-9\]+, pass \(\).*" \
|
|
"relocated instruction at ${testcase}"
|
|
}
|
|
|
|
gdb_test "tstatus" ".*Collected ${n_testcases} trace frames.*" "check on trace status"
|
|
|
|
gdb_test "tstop" "" ""
|