d78908cff5
This patch fixes the argument passed to compiled_cond. It should be regs buffer instead of tracepoint_hit_ctx. Test case is added as well for testing compiled-cond. gdb/gdbserver/ChangeLog 2015-09-16 Wei-cheng Wang <cole945@gmail.com> * tracepoint.c (eval_result_type): Change prototype. (condition_true_at_tracepoint): Fix argument to compiled_cond. gdb/testsuite/ChangeLog 2015-09-16 Wei-cheng Wang <cole945@gmail.com> * gdb.trace/ftrace.exp: (test_ftrace_condition) New function for testing bytecode compilation.
252 lines
7.3 KiB
Text
252 lines
7.3 KiB
Text
# Copyright 2011-2015 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
|
|
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
|
|
}
|
|
|
|
proc run_trace_experiment {} {
|
|
|
|
gdb_test "continue" \
|
|
".*Breakpoint \[0-9\]+, begin .*" \
|
|
"advance to trace begin"
|
|
|
|
gdb_test_no_output "tstart" "start trace experiment"
|
|
|
|
gdb_test "continue" \
|
|
".*Breakpoint \[0-9\]+, end .*" \
|
|
"advance through tracing"
|
|
|
|
gdb_test "tstatus" ".*Trace .*" "check on trace status"
|
|
|
|
gdb_test "tstop" "" ""
|
|
}
|
|
|
|
proc test_fast_tracepoints {} {
|
|
global gdb_prompt
|
|
|
|
set fourgood 0
|
|
|
|
gdb_test "break begin" ".*" ""
|
|
|
|
gdb_test "break end" ".*" ""
|
|
|
|
gdb_test "print gdb_agent_gdb_trampoline_buffer_error" ".*" ""
|
|
|
|
if { [istarget "x86_64-*-*"] || [istarget "i\[34567\]86-*-*"] } {
|
|
|
|
gdb_test "ftrace set_point" "Fast tracepoint .*" \
|
|
"fast tracepoint at a long insn"
|
|
|
|
gdb_trace_setactions "collect at set_point: define actions" \
|
|
"" \
|
|
"collect globvar, anarg" "^$"
|
|
|
|
# Make a test of shorter fast tracepoints, 32-bit x86 only
|
|
|
|
if { [istarget "i?86-*-*"] } {
|
|
|
|
# A Linux target needs to be able to allocate trampolines in the
|
|
# 16-bit range, check mmap_min_addr so we can warn testers.
|
|
if { [istarget "i?86-*-linux*"] } {
|
|
|
|
set minaddr [exec sh -c "cat /proc/sys/vm/mmap_min_addr"]
|
|
|
|
if { [expr $minaddr > 64512] } {
|
|
warning "mmap_min_addr > 64512, fast tracepoint will fail"
|
|
warning "do \"sudo sysctl -w vm.mmap_min_addr=32768\" to adjust"
|
|
}
|
|
}
|
|
|
|
gdb_test_multiple "ftrace four_byter" "set 4-byte fast tracepoint" {
|
|
-re "May not have a fast tracepoint at .*\r\n$gdb_prompt $" {
|
|
pass "4-byte fast tracepoint could not be set"
|
|
}
|
|
-re "Fast tracepoint .*\r\n$gdb_prompt $" {
|
|
pass "4-byte fast tracepoint is set"
|
|
set fourgood 1
|
|
}
|
|
}
|
|
|
|
if { $fourgood } {
|
|
|
|
gdb_trace_setactions "collect at four_byter: define actions" \
|
|
"" \
|
|
"collect globvar, anarg" "^$"
|
|
}
|
|
}
|
|
|
|
run_trace_experiment
|
|
|
|
gdb_test "tfind pc *set_point" "Found trace frame .*" \
|
|
"tfind set_point frame, first time"
|
|
|
|
setup_kfail "gdb/13808" "x86_64-*-linux*"
|
|
gdb_test "print globvar" " = 1"
|
|
|
|
gdb_test "tfind pc *set_point" "Found trace frame .*" \
|
|
"tfind set_point frame, second time"
|
|
|
|
setup_kfail "gdb/13808" "x86_64-*-linux*"
|
|
gdb_test "print anarg" " = 200"
|
|
|
|
gdb_test "tfind start" "Found trace frame .*" \
|
|
"reset tfinding"
|
|
|
|
if { $fourgood } {
|
|
|
|
gdb_test "tfind pc *four_byter" "Found trace frame .*" \
|
|
"tfind four_byter frame, first time"
|
|
|
|
gdb_test "print anarg" " = 101" \
|
|
"look at collected local, first time"
|
|
|
|
gdb_test "tfind pc *four_byter" "Found trace frame .*" \
|
|
"tfind four_byter frame, second time"
|
|
|
|
gdb_test "print anarg" " = 201" \
|
|
"look at collected local, second time"
|
|
|
|
}
|
|
|
|
# If debugging with the remote target, try force disabling the
|
|
# fast tracepoints RSP feature, and confirm fast tracepoints
|
|
# can no longer be downloaded.
|
|
set test "fast tracepoint could not be downloaded with the feature disabled"
|
|
if [gdb_is_target_remote] {
|
|
gdb_test "set remote fast-tracepoints-packet off"
|
|
|
|
gdb_test_multiple "tstart" $test {
|
|
-re "warning: Target does not support fast tracepoints, downloading .* as regular tracepoint.*\r\n$gdb_prompt $" {
|
|
pass $test
|
|
}
|
|
}
|
|
} else {
|
|
unsupported $test
|
|
}
|
|
}
|
|
}
|
|
|
|
# Test compiled-condition
|
|
# CONDEXP is the condition expression to be compiled.
|
|
# VAR is the variable to be collected for testing.
|
|
# LIST is a list of expected values of VAR should be collected
|
|
# based on the CONDEXP.
|
|
proc test_ftrace_condition { condexp var list } \
|
|
{ with_test_prefix "ond $condexp" \
|
|
{
|
|
global executable
|
|
global hex
|
|
|
|
clean_restart ${executable}
|
|
if ![runto_main] {
|
|
fail "Can't run to main to check for trace support"
|
|
return -1
|
|
}
|
|
|
|
gdb_test "break end" ".*" ""
|
|
gdb_test "tvariable \$tsv = 0"
|
|
gdb_test "ftrace set_point if $condexp" "Fast tracepoint .*"
|
|
gdb_trace_setactions "set action for tracepoint .*" "" \
|
|
"collect $var" "^$"
|
|
|
|
gdb_test_no_output "tstart" ""
|
|
gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" ""
|
|
gdb_test_no_output "tstop" ""
|
|
|
|
set i 0
|
|
foreach expval $list {
|
|
gdb_test "tfind" "Found trace frame $i, tracepoint .*" "tfind frame $i"
|
|
gdb_test "print $var" "\\$\[0-9\]+ = $expval\[\r\n\]" "expect $expval"
|
|
set i [expr $i + 1]
|
|
}
|
|
gdb_test "tfind" "Target failed to find requested trace frame\."
|
|
}}
|
|
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
|
|
if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
|
|
untested "Could not find IPA lib loaded"
|
|
return 1
|
|
}
|
|
|
|
test_fast_tracepoints
|
|
|
|
# Test conditional goto and simple expression.
|
|
test_ftrace_condition "globvar > 7" "globvar" { 8 9 10 }
|
|
test_ftrace_condition "globvar < 4" "globvar" { 1 2 3 }
|
|
test_ftrace_condition "globvar >= 7" "globvar" { 7 8 9 10 }
|
|
test_ftrace_condition "globvar <= 4" "globvar" { 1 2 3 4 }
|
|
test_ftrace_condition "globvar == 5" "globvar" { 5 }
|
|
test_ftrace_condition "globvar != 5" "globvar" { 1 2 3 4 6 7 8 9 10 }
|
|
test_ftrace_condition "globvar > 3 && globvar < 7" "globvar" { 4 5 6 }
|
|
test_ftrace_condition "globvar < 3 || globvar > 7" "globvar" { 1 2 8 9 10 }
|
|
test_ftrace_condition "(globvar << 2) + 1 == 29" "globvar" { 7 }
|
|
test_ftrace_condition "(globvar >> 2) == 2" "globvar" { 8 9 10 }
|
|
|
|
# Test emit_call by accessing trace state variables.
|
|
test_ftrace_condition "(\$tsv = \$tsv + 2) > 10" "globvar" { 6 7 8 9 10 }
|
|
|
|
# This expression is used for testing emit_reg.
|
|
if [is_amd64_regs_target] {
|
|
set arg0exp "\$rdi"
|
|
} elseif [is_x86_like_target] {
|
|
set arg0exp "*(int *) (\$ebp + 8)"
|
|
} else {
|
|
set arg0exp ""
|
|
}
|
|
|
|
if { "$arg0exp" != "" } {
|
|
test_ftrace_condition "($arg0exp > 500)" "globvar" { 6 7 8 9 10 }
|
|
}
|