317 lines
10 KiB
Text
317 lines
10 KiB
Text
# Copyright 2008-2014 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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standard_testfile .c inline-markers.c
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if {[prepare_for_testing $testfile.exp $testfile \
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[list $srcfile $srcfile2] {debug optimize=-O2}]} {
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return -1
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}
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gdb_test_no_output "set listsize 1"
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runto_main
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get_compiler_info
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get_debug_format
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if { [skip_inline_frame_tests] } {
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untested inline-cmds.exp
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return
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}
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# First, check that the things we expected to be inlined really were,
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# and those that shouldn't be weren't.
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set line1 [gdb_get_line_number "set breakpoint 1 here" ${srcfile2}]
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gdb_breakpoint $srcfile2:$line1
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set line2 [gdb_get_line_number "set breakpoint 2 here" ${srcfile2}]
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gdb_breakpoint $srcfile2:$line2
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gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (1)"
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gdb_test "backtrace" "#0 bar.*#1 .*func1.*#2 .*main.*" \
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"backtrace from bar (1)"
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gdb_test "up" "#1 .*func1.*" "up from bar (1)"
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gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (1)"
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gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (2)"
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gdb_test "backtrace" "#0 bar.*#1 .*func1.*#2 .*func2.*#3 .*main.*" \
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"backtrace from bar (2)"
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gdb_test "up" "#1 .*func1.*" "up from bar (2)"
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gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (2)"
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gdb_test "up" "#2 .*func2.*" "up from func1 (2)"
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gdb_test "info frame" ".*inlined into frame.*" "func2 inlined (2)"
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gdb_test "continue" ".*set breakpoint 2 here.*" "continue to marker"
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gdb_test "backtrace" "#0 marker.*#1 .*main.*" "backtrace from marker"
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gdb_test "info frame" ".*called by frame.*" "marker not inlined"
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# Next, check that we can next over inlined functions. We should not end up
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# inside any of them.
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delete_breakpoints
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runto_main
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# The lines before the first inlined call.
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set first "x = 7|y = 8"
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# Some extra lines that end up in our stepping due to code motion.
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set opt "start of main|result = 0"
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# We start this test with a "list" instead of a "next", in case the
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# first non-prologue instruction in main comes from the inlined function.
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set msg "next over inlined functions"
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gdb_test_multiple "list" $msg {
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-re "($first|result = func1|result = func2|$opt).*$gdb_prompt $" {
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send_gdb "next\r"
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exp_continue
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}
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-re "marker \\\(\\\);\r\n$gdb_prompt $" {
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pass $msg
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}
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}
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# Check that when next shows the call of func1, it has not happened yet.
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runto_main
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# Like the return value of gdb_test: -1 something is wrong, 0 passed, 1 failed.
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set bt_test -1
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set x_test -1
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set func1_step -1
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set last_was_func1_call 0
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set msg "next past inlined func1"
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gdb_test_multiple "list" $msg {
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-re "($first|$opt).*$gdb_prompt $" {
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set last_was_func1_call 0
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send_gdb "next\r"
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exp_continue
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}
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-re "result = func1 \\\(\\\);\r\n$gdb_prompt $" {
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# Check whether x has been set. If 0, we may be doing something
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# else associated with this line besides the inlined call - e.g.
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# loading the address of result. If 7, we may be at the call site.
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# If 15, though, we might be past the call and back at the store to
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# result - that's OK, as long as we weren't just here (see
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# func1_step above).
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set x_val -1
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gdb_test_multiple "print x" "" {
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-re "\\\$$decimal = (\[0-9\]*)\r\n$gdb_prompt $" {
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set x_val $expect_out(1,string)
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}
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-re "$gdb_prompt $" { }
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}
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if { $x_val == 0 || $x_val == 7 } {
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if { $x_test != 1 } {
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set x_test 0
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}
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} elseif { $x_val == 15 } {
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if { $func1_step == -1 } {
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# We passed func1 without stopping at the call site.
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set x_test 1
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}
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} else {
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set x_test 1
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}
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# func1 should not show up on backtraces if we are at its call
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# site.
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if { $bt_test != 1 } {
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set bt_test [gdb_test "backtrace" "#0 \[^#]*main.*" ""]
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}
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# When we next over func1, we should not return to the same
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# line. But we might go past the line, according to source
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# code order, and then come back. A valid but odd layout is
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# body of func1, load result's address into a register using
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# the source location of "result = 0" several lines down, and
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# then return to this line for the store. GCC 4.3 does that
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# on ARM.
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if { $last_was_func1_call } {
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set func1_step 1
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} elseif { $func1_step == -1 } {
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set func1_step 0
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}
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set last_was_func1_call 1
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send_gdb "next\r"
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exp_continue
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}
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-re "result = func2 \\\(\\\);\r\n$gdb_prompt $" {
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pass $msg
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}
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}
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if { $x_test == 0 } {
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pass "print x before func1"
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} else {
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fail "print x before func1"
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}
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if { $bt_test == 0 } {
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pass "backtrace does not include func1"
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} else {
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fail "backtrace does not include func1"
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}
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if { $bt_test == 0 } {
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pass "stepped over call to func1"
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} else {
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fail "stepped over call to func1"
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}
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# Next, check that we can single step into inlined functions. We should always
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# "stop" at the call sites before entering them.
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runto_main
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set msg "step into func1"
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set saw_call_site 0
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gdb_test_multiple "list" $msg {
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-re "($first|$opt).*$gdb_prompt $" {
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send_gdb "step\r"
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exp_continue
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}
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-re "result = func1.*$gdb_prompt $" {
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set saw_call_site 1
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send_gdb "step\r"
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exp_continue
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}
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-re "func1 \\\(\\\) at .*\r\n$decimal.*bar \\\(\\\);\r\n$gdb_prompt $" {
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if { $saw_call_site } {
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pass $msg
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} else {
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fail $msg
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}
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}
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}
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# Check finish out of an inlined function.
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set msg "finish from func1"
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gdb_test_multiple "finish" $msg {
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-re "result = func1 \\\(\\\);\r\n$gdb_prompt $" {
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pass $msg
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}
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-re "($first|$opt).*$gdb_prompt $" {
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# Whoops. We finished, but ended up back at an earlier line. Keep
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# trying.
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send_gdb "step\r"
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exp_continue
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}
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-re "func1 \\\(\\\) at .*\r\n$decimal.*bar \\\(\\\);\r\n$gdb_prompt $" {
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send_gdb "finish\r"
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exp_continue
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}
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}
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# Test some corner cases involving consecutive inlined functions.
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set line3 [gdb_get_line_number "set breakpoint 3 here"]
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gdb_breakpoint $line3
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gdb_continue_to_breakpoint "consecutive func1"
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gdb_test "next" ".*func1 .*first call.*" "next to first func1"
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set msg "next to second func1"
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gdb_test_multiple "next" $msg {
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-re ".*func1 .*second call.*$gdb_prompt $" {
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pass $msg
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}
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-re ".*marker .*$gdb_prompt $" {
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# This assembles to two consecutive call instructions.
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# Both appear to be at the same line, because they're
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# in the body of the same inlined function. This is
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# reasonable for the line table. GDB should take the
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# containing block and/or function into account when
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# deciding how far to step. The single line table entry
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# is actually two consecutive instances of the same line.
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kfail gdb/NNNN $msg
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}
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}
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# It is easier when the two inlined functions are not on the same line.
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set line4 [gdb_get_line_number "set breakpoint 4 here"]
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gdb_breakpoint $line4
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gdb_continue_to_breakpoint "func1 then func3"
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gdb_test "next" ".*func1 \\\(\\\);" "next to func1 before func3"
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gdb_test "next" ".*func3 \\\(\\\);" "next to func3"
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# Test finishing out of one thing and into another.
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set line5 [gdb_get_line_number "set breakpoint 5 here"]
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gdb_breakpoint $line5
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gdb_continue_to_breakpoint "finish into func1"
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gdb_test "next" ".*marker \\\(\\\);" "next to finish marker"
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gdb_test "step" ".*set breakpoint 2 here.*" "step into finish marker"
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# Some architectures will have one or more instructions after
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# the call instruction which still are part of the call sequence,
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# so it should be expected to return to the caller line after issue
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# a 'finish' command.
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gdb_test_multiple "finish" "finish from marker" {
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-re "func1 \\\(\\\);.*\r\n$gdb_prompt $" {
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pass "finish from marker to func1"
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}
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-re "marker \\\(\\\);.*\r\n$gdb_prompt $" {
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pass "finish from marker"
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gdb_test "step" "func1 \\\(\\\);.*" "step after marker to reach func1"
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}
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}
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gdb_test "step" "bar \\\(\\\);" "step into func1 for finish"
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gdb_test "finish" "func3 \\\(\\\);" "finish from func1 to func3"
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# Test a deeper call stack.
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set line6 [gdb_get_line_number "set breakpoint 6 here"]
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gdb_breakpoint $line6
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gdb_continue_to_breakpoint "before the outer_inline call"
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gdb_test "step" "marker \\\(\\\) at .*" "reach 1 the outer_inline call"
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gdb_test_multiple "finish" "finish from marker" {
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-re "main \\\(\\\) at .*outer_inline2 \\\(\\\);.*\r\n$gdb_prompt $" {
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pass "reach outer_inline2"
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}
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-re "main \\\(\\\) at .*marker \\\(\\\);.*\r\n$gdb_prompt $" {
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pass "finish from marker"
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gdb_test "step" "outer_inline2 \\\(\\\);.*" "step after marker to reach outer_inline2"
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}
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}
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gdb_test "bt" "#0 main.*" "backtrace at main of outer_inline"
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gdb_test "step" "outer_inline2 \\\(\\\) at .*" "enter outer_inline2"
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gdb_test "bt" "#0 outer_inline2.*#1 main.*" "backtrace at outer_inline2"
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gdb_test "step" "outer_inline1 \\\(\\\) at .*" "enter outer_inline1 from outer_inline2"
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set msg "backtrace at outer_inline1"
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gdb_test_multiple "bt" $msg {
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-re "#0 outer_inline1.*#1 outer_inline2.*#2 main.*$gdb_prompt $" {
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pass $msg
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}
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-re "#0 $hex in outer_inline1.*#1 outer_inline2.*#2 main.*$gdb_prompt $" {
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# Binutils PR gas/6717. Gas moves .loc past .p2align and the
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# leading nop of the inlined call appears to be on the same line
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# as main's call to marker.
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xfail $msg
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gdb_test "step" "noinline \\\(\\\);" "step to call of noinline"
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}
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}
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gdb_test "step" "noinline \\\(\\\) at .*" "enter noinline from outer_inline1"
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gdb_test "bt" "#0 noinline.*#1 .*outer_inline1.*#2 .*outer_inline2.*#3 main.*" "backtrace at noinline from outer_inline1"
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gdb_test "step" "inlined_fn \\\(\\\) at .*" "enter inlined_fn from noinline"
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gdb_test "bt" "#0 inlined_fn.*#1 noinline.*#2 .*outer_inline1.*#3 .*outer_inline2.*#4 main.*" "backtrace at inlined_fn from noinline"
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gdb_test "info frame" ".*inlined into frame.*" "inlined_fn from noinline inlined"
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gdb_test "up" "#1 noinline.*" "up to noinline"
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gdb_test "info frame" ".*\n called by frame.*" "noinline from outer_inline1 not inlined"
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gdb_test "up" "#2 .*outer_inline1.*" "up to outer_inline1"
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gdb_test "info frame" ".*inlined into frame.*" "outer_inline1 inlined"
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gdb_test "up" "#3 .*outer_inline2.*" "up to outer_inline2"
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gdb_test "info frame" ".*inlined into frame.*" "outer_inline2 inlined"
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gdb_test "up" "#4 main.*" "up from outer_inline2"
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gdb_test "info frame" ".*\n caller of frame.*" "main not inlined"
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