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tfile.exp: Test printing a non-const global that is not covered by the trace frame; test disassembling. 

Make sure we don't fallback to printing the initial value of a
non-const variable in the executable.

Also make sure we can do 'disassemble', as another test that GDB is
able to read read-only parts from the executable (the existing test of
printing constglob also covers that case).

gdb/testsuite/
2013-03-20  Pedro Alves  <palves@redhat.com>
	    Yao Qi  <yao@codesourcery.com>

	* gdb.trace/tfile.c: Add comments.
	(nonconstglob): New global.
	* gdb.trace/tfile.exp: Add comments.  Test printing a non-const
	global that is not covered by the trace frame.  Test
	disassembling.
This commit is contained in:
Pedro Alves 2013-03-20 11:28:55 +00:00
parent 35a7120b8c
commit 3f1175a995
3 changed files with 30 additions and 0 deletions
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9
gdb/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2013-03-20 Pedro Alves <palves@redhat.com>
Yao Qi <yao@codesourcery.com>
* gdb.trace/tfile.c: Add comments.
(nonconstglob): New global.
* gdb.trace/tfile.exp: Add comments. Test printing a non-const
global that is not covered by the trace frame. Test
disassembling.
2013-03-17 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/valgrind-infcall.exp

6
gdb/testsuite/gdb.trace/tfile.c
View File

@ -13,12 +13,18 @@ char trbuf[1000];
char *trptr;
char *tfsizeptr;
/* These globals are put in the trace buffer. */
int testglob = 31415;
int testglob2 = 271828;
/* But these below are not. */
const int constglob = 10000;
int nonconstglob = 14124;
int
start_trace_file (char *filename)
{

15
gdb/testsuite/gdb.trace/tfile.exp
View File

@ -64,8 +64,23 @@ gdb_test "print testglob" " = 31415" "print testglob on trace file"
gdb_test "print testglob2" " = 271828" "print testglob2 on trace file"
# This global is not covered by the trace frame, but since it's const,
# we should be able to read it from the executable.
gdb_test "print constglob" " = 10000" "print constglob on trace file"
# Similarly, disassembly should find the read-only pieces in the executable.
gdb_test "disassemble main" \
"Dump of assembler code for function main:.* $hex <\\+0\\>:.*End of assembler dump\."
# This global is also not covered by the trace frame, and since it's
# non-const, we should _not_ read it from the executable, as that
# would show the variable's initial value, not the current at time the
# trace frame was created.
gdb_test "print nonconstglob" \
" = <unavailable>" "print nonconstglob on trace file"
gdb_test "tfind" "Target failed to find requested trace frame." \
"tfind does not find a second frame in trace file"