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GDB monitor: test the 'set var' and 'call' commands

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Fixes #930.
This commit is contained in:
Christian Prochaska 2013-10-24 15:02:59 +02:00 committed by Norman Feske
parent 27aeecf5d1
commit a1458307da
2 changed files with 47 additions and 3 deletions
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31
ports/run/gdb_monitor.run
View File

@ -129,6 +129,16 @@ append gdb_cmds {-ex "c" }
# test: stack trace when not in syscall
append gdb_cmds {-ex "bt" }
# test: modify variable
append gdb_cmds {-ex "print test_var" }
append gdb_cmds {-ex "set var test_var=2" }
append gdb_cmds {-ex "print test_var" }
# test: 'call' command
if {![have_spec nova]} {
append gdb_cmds {-ex "call test_var_func()" }
}
# test: thread info
append gdb_cmds {-ex "b Test_thread::entry()" }
append gdb_cmds {-ex "c" }
@ -150,7 +160,7 @@ append gdb_cmds {-ex "q" }
# run GDB and redirect stderr to stdio to get the relevant output into the expect buffer
eval spawn [gdb] bin/$gdb_target_binary -batch $gdb_cmds 2&>1
set timeout 60
set timeout 120
expect {
timeout { puts stderr "Error: Test execution timed out"; exit -2 }
}
@ -180,6 +190,23 @@ if {![regexp {#0 puts} $gdb_output] ||
exit -1
}
if {![regexp {\$1 = 1} $gdb_output]} {
puts stderr "Error: first 'print test_var' command didn't result in the expected output"
exit -1
}
if {![regexp {\$2 = 2} $gdb_output]} {
puts stderr "Error: second 'print test_var' command didn't result in the expected output"
exit -1
}
if {![have_spec nova]} {
if {![regexp {\$3 = 3} $gdb_output]} {
puts stderr "Error: 'call' command didn't result in the expected output"
exit -1
}
}
if {![regexp {Breakpoint 4, Test_thread::entry()} $gdb_output]} {
puts stderr "Error: Breakpoint in test thread did not trigger"
exit -1
@ -191,7 +218,7 @@ if {![regexp {\* 2 Thread 2 Test_thread::entry} $gdb_output] ||
exit -1
}
if {![regexp {42 func()} $gdb_output]} {
if {![regexp {46 func()} $gdb_output]} {
puts stderr "Error: Single stepping didn't result in the expected output"
exit -1
}

19
ports/src/test/gdb_monitor/main.cc
View File

@ -1,5 +1,5 @@
/*
* \brief GDB Monitor thread selection and backtrace test
* \brief GDB Monitor test
* \author Christian Prochaska
* \date 2011-05-24
*/
@ -19,6 +19,10 @@
/* libc includes */
#include <stdio.h>
/* a variable to be modified with GDB */
int test_var = 1;
/* a thread to test GDB thread switching support */
class Test_thread : public Genode::Thread<2*4096>
{
public:
@ -45,6 +49,15 @@ class Test_thread : public Genode::Thread<2*4096>
}
};
/*
* This function returns the current value of 'test_var' + 1 and can be called from
* GDB using the 'call' or 'print' commands
*/
int test_var_func()
{
return test_var + 1;
}
/* this function returns a value to make itself appear in the stack trace when building with -O2 */
int func2()
{
@ -52,6 +65,9 @@ int func2()
* thread which is not in a syscall */
puts("in func2()\n");
/* call 'test_var_func()', so the compiler does not throw the function away */
printf("test_var_func() returned %d\n", test_var_func());
return 0;
}
@ -77,3 +93,4 @@ int main(void)
return 0;
}