set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
+set wp_set 1
if [get_compiler_info ${binfile}] {
return -1
}
-# if we are on HPUX and we are not compiled with gcc, then skip these tests.
-
-if [istarget hppa*-*-hpux*] {
- if {!$gcc_compiled} {
- continue
- }
-}
-
-
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
global hex
global decimal
global srcfile
+ global wp_set
if [gdb_test "break marker1" "Breakpoint 1 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker1" ] {
return 0;
}
- if [gdb_test "watch ival3" ".*\[Ww\]atchpoint 3: ival3" "set watchpoint on ival3" ] {
- return 0;
+ # ??rehrauer: To fix DTS #CHFts23014, in which setting a watchpoint
+ # before running can cause the inferior to croak on HP-UX 10.30 and
+ # 11.0 for reasons as yet unknown, we've disabled the ability to set
+ # watches without a running inferior. Verify the restriction.
+ #
+ send_gdb "watch ival3\n"
+ gdb_expect {
+ -re ".*\[Ww\]atchpoint 3: ival3.*$gdb_prompt $" {
+ pass "set watchpoint on ival3"
+ }
+ -re "warning: can't do that without a running program; try \"break main\", \"run\" first.*$gdb_prompt $" {
+ pass "set watchpoint on ival3"
+ set wp_set 0
+ return 1
+ }
+ timeout {
+ fail "(timeout) set watchpoint on ival3"
+ return 0
+ }
}
-
# "info watch" is the same as "info break"
if [gdb_test "info watch" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*\r\n3\[ \]*.*watchpoint.*ival3" "watchpoint found in watchpoint/breakpoint table" ] {
global gdb_prompt
global hex
global decimal
+ global wp_set
# Ensure that the watchpoint is disabled when we startup.
- if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] {
- return 0;
+ if { $wp_set } {
+ if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] {
+ return 0;
+ }
}
}
}
+ if { !$wp_set } {
+ # ??rehrauer: To fix DTS #CHFts23014, in which setting a watchpoint
+ # before running can cause the inferior to croak on HP-UX 10.30 and
+ # 11.0 for reasons as yet unknown, we've disabled the ability to set
+ # watches without a running inferior. The following testpoints used
+ # to be in [initialize].
+ #
+ send_gdb "watch ival3\n"
+ gdb_expect {
+ -re ".*\[Ww\]atchpoint 3: ival3\r\n$gdb_prompt $" {
+ pass "set watchpoint on ival3"
+ }
+ -re ".*$gdb_prompt $" { fail "set watchpoint on ival3" }
+ timeout { fail "set watchpoint on ival3 (timeout)" }
+ }
+
+ set wp_set 1
+
+ # "info watch" is the same as "info break"
+
+ send_gdb "info watch\n"
+ gdb_expect {
+ -re "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*\r\n3\[ \]*.*watchpoint.*ival3\r\n$gdb_prompt $" {
+ pass "watchpoint found in watchpoint/breakpoint table"
+ }
+ -re ".*$gdb_prompt $" {
+ fail "watchpoint found in watchpoint/breakpoint table"
+ }
+ timeout {
+ fail "watchpoint found in watchpoint/breakpoint table"
+ }
+ }
+
+ # After installing the watchpoint, we disable it until we are ready
+ # to use it. This allows the test program to run at full speed until
+ # we get to the first marker function.
+
+ send_gdb "disable 3\n"
+ gdb_expect {
+ -re "disable 3\[\r\n\]+$gdb_prompt $" { pass "disable watchpoint" }
+ -re ".*$gdb_prompt $" { fail "disable watchpoint" }
+ timeout { fail "disable watchpoint (timeout)" }
+ }
+ }
+
# After reaching the marker function, enable the watchpoint.
if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "enable watchpoint" ] {
global decimal
global hex
+ # "info watch" is the same as "info break"
+ gdb_test "info watch" "\[0-9\]+\[ \]*breakpoint.*marker1.*\r\n\[0-9\]+\[ \]*breakpoint.*marker2.*\r\n\[0-9]+\[ \]*.*watchpoint.*ival3\r\n\.*\[0-9\]+ times.*" "watchpoints found in watchpoint/breakpoint table"
+
# Ensure that the watchpoint is disabled when we startup.
if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_disabling_watchpoints" ] {
# Check watchpoint list, looking for the entry that confirms the
# watchpoint is disabled.
- gdb_test "info watchpoints" "3\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table"
+ gdb_test "info watchpoints" "\[0-9]+\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table"
# Continue until we hit the finishing marker function.
# Make sure we hit no more watchpoints.
gdb_test "break func2 if 0" "Breakpoint.*at.*"
gdb_test "p \$func2_breakpoint_number = \$bpnum" " = .*"
- # The HPPA has a problem here if it's not using hardware watchpoints
- if {[ istarget "hppa*-*-*" ] && ![ istarget "hppa*-*-*bsd*" ]} then {
- # Don't actually try doing the call, if we do we can't continue.
- setup_xfail "*-*-*"
- fail "calling function with watchpoint enabled"
- } else {
- # The problem is that GDB confuses stepping through the call
- # dummy with hitting the breakpoint at the end of the call dummy.
- # Will be fixed once all architectures define
- # CALL_DUMMY_BREAKPOINT_OFFSET.
- setup_xfail "*-*-*"
- # This doesn't occur if the call dummy starts with a call,
- # because we are out of the dummy by the first time the inferior
- # stops.
- clear_xfail "d10v*-*-*"
- clear_xfail "m68*-*-*"
- clear_xfail "i*86*-*-*"
- clear_xfail "vax-*-*"
- # The following architectures define CALL_DUMMY_BREAKPOINT_OFFSET.
- clear_xfail "alpha-*-*"
- clear_xfail "mips*-*-*"
- clear_xfail "sparc-*-*"
- clear_xfail "hppa*-*-*bsd*"
- # It works with the generic inferior function calling code too.
- clear_xfail "mn10200*-*-*"
- clear_xfail "mn10300*-*-*"
- gdb_test "p func1 ()" "= 73" \
- "calling function with watchpoint enabled"
- }
+ # The problem is that GDB confuses stepping through the call
+ # dummy with hitting the breakpoint at the end of the call dummy.
+ # Will be fixed once all architectures define
+ # CALL_DUMMY_BREAKPOINT_OFFSET.
+ setup_xfail "*-*-*"
+ # This doesn't occur if the call dummy starts with a call,
+ # because we are out of the dummy by the first time the inferior
+ # stops.
+ clear_xfail "d10v*-*-*"
+ clear_xfail "m68*-*-*"
+ clear_xfail "i*86*-*-*"
+ clear_xfail "vax-*-*"
+ # The following architectures define CALL_DUMMY_BREAKPOINT_OFFSET.
+ clear_xfail "alpha-*-*"
+ clear_xfail "mips*-*-*"
+ clear_xfail "sparc-*-*"
+ clear_xfail "hppa*-*-*bsd*"
+ # It works with the generic inferior function calling code too.
+ clear_xfail "mn10200*-*-*"
+ clear_xfail "mn10300*-*-*"
+ # The following architectures define CALL_DUMMY_HAS_COMPLETED.
+ clear_xfail "hppa*-*-*hpux*"
+ gdb_test "p func1 ()" "= 73" \
+ "calling function with watchpoint enabled"
#
# "finish" brings us back to main.
gdb_test "cont" "Continuing.*Breakpoint.*marker5 \\(\\).*" \
"did not trigger wrong watchpoint"
+ # Test watches of things declared locally in a function.
+ # In particular, test that a watch of stack-based things
+ # is deleted when the stack-based things go out of scope.
+ #
+ gdb_test "disable" "" "disable in test_complex_watchpoint"
+ gdb_test "break marker6" ".*Breakpoint.*"
+ gdb_test "cont" "Continuing.*Breakpoint.*marker6 \\(\\).*" \
+ "continue to marker6"
+ gdb_test "break func2" ".*Breakpoint.*"
+ gdb_test "cont" "Continuing.*func2.*"
+
+ # Test a watch of a single stack-based variable, whose scope
+ # is the function we're now in. This should auto-delete when
+ # execution exits the scope of the watchpoint.
+ #
+ gdb_test "watch local_a" ".*\[Ww\]atchpoint \[0-9\]*: local_a" "set local watch"
+ gdb_test "cont" "\[Ww\]atchpoint.*local_a.*" "trigger local watch"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" "self-delete local watch"
+
+ gdb_test "cont" "Continuing.*func2.*"
+ # We should be in "func2" again now. Test a watch of an
+ # expression which includes both a stack-based local and
+ # something whose scope is larger than this invocation
+ # of "func2". This should also auto-delete.
+ #
+ gdb_test "watch local_a + ival5" ".*\[Ww\]atchpoint \[0-9\]*: local_a . ival5" \
+ "set partially local watch"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \
+ "trigger1 partially local watch"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \
+ "trigger2 partially local watch"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \
+ "self-delete partially local watch"
+
+ # We should be in "func2" again now. Test a watch of a
+ # static (non-stack-based) local. Since this has scope
+ # across any invocations of "func2", it should not auto-
+ # delete.
+ #
+ gdb_test "cont" "Continuing.*func2.*"
+ gdb_test "watch static_b" ".*\[Ww\]atchpoint \[0-9\]*: static_b" \
+ "set static local watch"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: static_b.*" \
+ "trigger static local watch"
+ gdb_test "cont" "Continuing.*marker6 \\(\\).*" \
+ "continue after trigger static local watch"
+ gdb_test "info break" ".*watchpoint.*static_b.*" \
+ "static local watch did not self-delete"
+
+ # We should be in "recurser" now. Test a watch of a stack-
+ # based local. Symbols mentioned in a watchpoint are bound
+ # at watchpoint-creation. Thus, a watch of a stack-based
+ # local to a recursing function should be bound only to that
+ # one invocation, and should not trigger for other invocations.
+ #
+ gdb_test "tbreak recurser" ".*Breakpoint.*"
+ gdb_test "cont" "Continuing.*recurser.*"
+ gdb_test "watch local_x" ".*\[Ww\]atchpoint \[0-9\]*: local_x" \
+ "set local watch in recursive call"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_x.*New value = 2.*" \
+ "trigger local watch in recursive call"
+ gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \
+ "self-delete local watch in recursive call"
+
# Disable everything so we can finish the program at full speed
gdb_test "disable" "" "disable in test_complex_watchpoint"
if [target_info exists gdb,noresults] { return }
-
- gdb_continue_to_end "continue to exit in test_complex_watchpoint"
+ gdb_continue_to_end "continue to exit in test_complex_watchpoint"
}
}
# Start with a fresh gdb.
+gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load $binfile
[istarget "m32r-*-*"]} then {
test_complex_watchpoint
}
+
+ # Verify that a user can force GDB to use "slow" watchpoints.
+ # (This proves rather little on kernels that don't support
+ # fast watchpoints, but still...)
+ #
+ if ![runto_main] then { fail "watch tests suppressed" }
+
+ send_gdb "set can-use-hw-watchpoints 0\n"
+ gdb_expect {
+ -re "$gdb_prompt $"\
+ {pass "disable fast watches"}
+ timeout {fail "(timeout) disable fast watches"}
+ }
+ send_gdb "show can-use-hw-watchpoints\n"
+ gdb_expect {
+ -re "Debugger's willingness to use watchpoint hardware is 0.*$gdb_prompt $"\
+ {pass "show disable fast watches"}
+ -re "$gdb_prompt $"\
+ {fail "show disable fast watches"}
+ timeout {fail "(timeout) show disable fast watches"}
+ }
+ send_gdb "watch ival3 if count > 1\n"
+ gdb_expect {
+ -re "Watchpoint \[0-9\]*: ival3.*$gdb_prompt $"\
+ {pass "set slow conditional watch"}
+ -re "$gdb_prompt $"\
+ {fail "set slow conditional watch"}
+ timeout {fail "(timeout) set slow conditional watch"}
+ }
+ send_gdb "continue\n"
+ gdb_expect {
+ -re "Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*$gdb_prompt $"\
+ {pass "trigger slow conditional watch"}
+ -re "$gdb_prompt $"\
+ {fail "trigger slow conditional watch"}
+ timeout {fail "(timeout) trigger slow conditional watch"}
+ }
+
+ # We've explicitly disabled hardware watches. Verify that GDB
+ #
+ #
+ send_gdb "rwatch ival3\n"
+ gdb_expect {
+ -re "Expression cannot be implemented with read/access watchpoint..*$gdb_prompt $"\
+ {pass "rwatch disallowed when can-set-hw-watchpoints cleared"}
+ -re "$gdb_prompt $"\
+ {fail "rwatch disallowed when can-set-hw-watchpoints cleared"}
+ timeout {fail "(timeout) rwatch disallowed when can-use-hw-watchpoints cleared"}
+ }
+
+ # Read- and access watchpoints are unsupported on HP-UX. Verify
+ # that GDB gracefully responds to requests to create them.
+ #
+ if [istarget "hppa*-*-hpux*"] then {
+ send_gdb "set can-use-hw-watchpoints 1\n"
+ gdb_expect {
+ -re "$gdb_prompt $"\
+ {pass "enable fast watches"}
+ timeout {fail "(timeout) enable fast watches"}
+ }
+ send_gdb "rwatch ival3\n"
+ gdb_expect {
+ -re "Target does not have this type of hardware watchpoint support.*$gdb_prompt $"\
+ {pass "read watches disallowed"}
+ -re "$gdb_prompt $"\
+ {fail "read watches disallowed"}
+ timeout {fail "(timeout) read watches disallowed"}
+ }
+
+ send_gdb "awatch ival3\n"
+ gdb_expect {
+ -re "Target does not have this type of hardware watchpoint support.*$gdb_prompt $"\
+ {pass "access watches disallowed"}
+ -re "$gdb_prompt $"\
+ {fail "access watches disallowed"}
+ timeout {fail "(timeout) access watches disallowed"}
+ }
+ }
}
projects / deliverable / binutils-gdb.git / blobdiff