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msgctl{08, 09, 10, 11}: cleanup

PATCH In review Stanislav Kholmanskikh 2 participants 7 messages Oct 18, 2013 – Nov 7, 2013 5 messages not in the archive

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Stanislav Kholmanskikh

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#1 lore raw

PATCH 1/1 msgctl{08, 09, 10, 11}: cleanup

In reply to a message not in the archive

* Moved common functions, definitions to libmsgctl.h, libmsgctl.c.
* Changed tst_* in children with printf + exit (or return).
* Some cleanup.

Signed-off-by Stanislav Kholmanskikh <[email protected]>
---
 testcases/kernel/syscalls/ipc/msgctl/Makefile    |    9 +
 testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c |  148 +++++++++++++
 testcases/kernel/syscalls/ipc/msgctl/libmsgctl.h |   39 ++++
 testcases/kernel/syscalls/ipc/msgctl/msgctl08.c  |  201 ++++--------------
 testcases/kernel/syscalls/ipc/msgctl/msgctl09.c  |  252 ++++-----------------
 testcases/kernel/syscalls/ipc/msgctl/msgctl10.c  |  196 ++++--------------
 testcases/kernel/syscalls/ipc/msgctl/msgctl11.c  |  245 ++++-----------------
 7 files changed, 369 insertions(+), 721 deletions(-)
 create mode 100644 testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c
 create mode 100644 testcases/kernel/syscalls/ipc/msgctl/libmsgctl.h
testcases/kernel/syscalls/ipc/msgctl/Makefile +9 -0
index f467389..ae61b51 100644
@@ -18,6 +18,15 @@
 
 top_srcdir              ?= ../../../../..
 
+FILTER_OUT_MAKE_TARGETS	:= libmsgctl
+
 include $(top_srcdir)/include/mk/testcases.mk
 include $(abs_srcdir)/../Makefile.inc
 include $(top_srcdir)/include/mk/generic_leaf_target.mk
+
+SRCS			?= $(wildcard $(abs_srcdir)/*.c)
+OBJS			:= $(notdir $(patsubst %.c,%.o,$(SRCS)))
+.INTERMEDIATE: $(OBJS)
+
+$(MAKE_TARGETS): %: %.o libmsgctl.o
+libmsgctl.o: libmsgctl.h
testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c new file +148 -0

148 lines not on this page · raw message

testcases/kernel/syscalls/ipc/msgctl/libmsgctl.h new file +39 -0
new file mode 100644
index 0000000..e1afeab
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) International Business Machines  Corp., 2002
+ * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
+ *
+ * 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 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would 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, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __LIBMSGCTL_H__
+#define __LIBMSGCTL_H__
+
+#define FAIL	1
+#define PASS	0
+
+struct mbuffer {
+	long type;
+	struct {
+		char len;
+		char pbytes[99];
+	} data;
+};
+
+int doreader(long key, int tid, long type, int child, int nreps);
+int dowriter(long key, int tid, long type, int child, int nreps);
+int fill_buffer(char *buf, char val, int size);
+int verify(char *buf, char val, int size, int child);
+
+#endif /*__LIBMSGCTL_H__ */
testcases/kernel/syscalls/ipc/msgctl/msgctl08.c +41 -160

302 lines not on this page · raw message

testcases/kernel/syscalls/ipc/msgctl/msgctl09.c +48 -204

395 lines not on this page · raw message

testcases/kernel/syscalls/ipc/msgctl/msgctl10.c +38 -158

294 lines not on this page · raw message

testcases/kernel/syscalls/ipc/msgctl/msgctl11.c +46 -199

378 lines not on this page · raw message

Signature · 13 lines
1.7.1


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#2 lore raw

Hi!

testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c

Quoted 23 lines
testcases/kernel/syscalls/ipc/msgctl/Makefile +9 -0
index f467389..ae61b51 100644
@@ -18,6 +18,15 @@
 
 top_srcdir              ?= ../../../../..
 
+FILTER_OUT_MAKE_TARGETS	:= libmsgctl
+
 include $(top_srcdir)/include/mk/testcases.mk
 include $(abs_srcdir)/../Makefile.inc
 include $(top_srcdir)/include/mk/generic_leaf_target.mk
+
+SRCS			?= $(wildcard $(abs_srcdir)/*.c)
+OBJS			:= $(notdir $(patsubst %.c,%.o,$(SRCS)))
+.INTERMEDIATE: $(OBJS)
+
+$(MAKE_TARGETS): %: %.o libmsgctl.o
+libmsgctl.o: libmsgctl.h
testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c new file +0 -0
new file mode 100644
index 0000000..fa77b56

This is too hacky what about building .a library instead as it's done in testcases/kernel/mem/lib ?

I've looked into the lib.mk and it looks like you don't even have to put the lib in the separate directory if you set LIBSRC in the corresponding Makefile.

I should really make some time to write more documentation for the most common build system usages....

testcases/kernel/syscalls/ipc/msgctl/msgctl08.c line 57

Quoted 12 lines
testcases/kernel/syscalls/ipc/msgctl/msgctl08.c +1 -0
index f733946..8d7e431 100644
@@ -51,6 +51,7 @@
 #include "test.h"
 #include "usctest.h"
 #include "ipcmsg.h"
+#include "libmsgctl.h"
 
 void setup();
 void cleanup();

Can you add void to all functions that take no parameters? (Otherwise the compiler thinks that they take unspecified number of integer parameters...)

testcases/kernel/syscalls/ipc/msgctl/msgctl08.c void cleanup(); · line 63

Quoted 3 lines
testcases/kernel/syscalls/ipc/msgctl/msgctl08.c +0 -0
@@ -61,38 +62,22 @@ void cleanup();
 char *TCID = "msgctl08";	/* Test program identifier.    */
 int TST_TOTAL = 1;		/* Total number of test cases. */

Can you please also remove useless comments as:

/* Test program identifier. */

/* Total number of test cases. */

/*
* * * * These globals must be defined in the test.
* * * */

/*--------------------------------------------------------------------*/

And similar?

Signature · 13 lines
Cyril Hrubis
[email protected]

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#4 lore raw
In reply to a message not in the archive

Hi!

Quoted 66 lines
Quoted 26 lines

testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c

Quoted 23 lines
testcases/kernel/syscalls/ipc/msgctl/Makefile +9 -0
index f467389..ae61b51 100644
@@ -18,6 +18,15 @@
 
  top_srcdir              ?= ../../../../..
 
+FILTER_OUT_MAKE_TARGETS	:= libmsgctl
+
  include $(top_srcdir)/include/mk/testcases.mk
  include $(abs_srcdir)/../Makefile.inc
  include $(top_srcdir)/include/mk/generic_leaf_target.mk
+
+SRCS			?= $(wildcard $(abs_srcdir)/*.c)
+OBJS			:= $(notdir $(patsubst %.c,%.o,$(SRCS)))
+.INTERMEDIATE: $(OBJS)
+
+$(MAKE_TARGETS): %: %.o libmsgctl.o
+libmsgctl.o: libmsgctl.h
testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c new file +0 -0
new file mode 100644
index 0000000..fa77b56

This is too hacky what about building .a library instead as it's done in testcases/kernel/mem/lib ?

Quoted 3 lines

I've looked into the lib.mk and it looks like you don't even have to put the lib in the separate directory if you set LIBSRC in the corresponding Makefile.

Cyril, could you show an example of doing this (placing test case sources and static libraries sources in the same directory), please?

I tried to do what you said but couldn't manage it :(

I used this Makefile:

top_srcdir ?= ../../../../..

LIBSRCS := $(abs_srcdir)/libmsgctl.c
INTERNAL_LIB := libmsgctl.a

include $(top_srcdir)/include/mk/testcases.mk include $(abs_srcdir)/../Makefile.inc
include $(top_srcdir)/include/mk/generic_leaf_target.mk include $(top_srcdir)/include/mk/lib.mk

And got error:
../../../../../include/mk/lib.mk:66: warning: overriding commands for target `../lib/libipc.a' /home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../Makefile.inc:34:
warning: ignoring old commands for target `../lib/libipc.a'
make: Circular ../lib/libipc.a <- ../lib/libipc.a dependency dropped.

if [ -z "../lib" ] ; then \
         echo "Cowardly refusing to create empty archive"; \
         exit 1; \
     fi

ar -rc "../lib/libipc.a" ../lib
ar: ../lib/libipc.a: Error reading ../lib: Is a directory
make: *** [../lib/libipc.a] Error 1

And I think that I found an another issue we should overcome - lib.mk defines MAKE_TARGETS:

MAKE_TARGETS := $(LIB)

Quoted 8 lines

generic_leaf_target.mk also does it.

So It should not be trivial to include both files (lib.mk and generic_leaf_target.mk) into one Makefile.
I suppose that in that case we have to implicitly define MAKE_TARGETS in our Makefile.

Not good :(

I will have a look, stay tuned.

Signature · 13 lines
Cyril Hrubis
[email protected]

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#5 lore raw
In reply to a message not in the archive

Hi!

Quoted 53 lines
Quoted 26 lines

testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c

Quoted 23 lines
testcases/kernel/syscalls/ipc/msgctl/Makefile +9 -0
index f467389..ae61b51 100644
@@ -18,6 +18,15 @@
 
  top_srcdir              ?= ../../../../..
 
+FILTER_OUT_MAKE_TARGETS	:= libmsgctl
+
  include $(top_srcdir)/include/mk/testcases.mk
  include $(abs_srcdir)/../Makefile.inc
  include $(top_srcdir)/include/mk/generic_leaf_target.mk
+
+SRCS			?= $(wildcard $(abs_srcdir)/*.c)
+OBJS			:= $(notdir $(patsubst %.c,%.o,$(SRCS)))
+.INTERMEDIATE: $(OBJS)
+
+$(MAKE_TARGETS): %: %.o libmsgctl.o
+libmsgctl.o: libmsgctl.h
testcases/kernel/syscalls/ipc/msgctl/libmsgctl.c new file +0 -0
new file mode 100644
index 0000000..fa77b56

This is too hacky what about building .a library instead as it's done in testcases/kernel/mem/lib ?

Quoted 3 lines

I've looked into the lib.mk and it looks like you don't even have to put the lib in the separate directory if you set LIBSRC in the corresponding Makefile.

Cyril, could you show an example of doing this (placing test case sources and static libraries sources in the same directory), please?

I tried to do what you said but couldn't manage it :(

I used this Makefile:

top_srcdir ?= ../../../../..

LIBSRCS := $(abs_srcdir)/libmsgctl.c
INTERNAL_LIB := libmsgctl.a

include $(top_srcdir)/include/mk/testcases.mk include $(abs_srcdir)/../Makefile.inc
include $(top_srcdir)/include/mk/generic_leaf_target.mk include $(top_srcdir)/include/mk/lib.mk

And got error:
../../../../../include/mk/lib.mk:66: warning: overriding commands for target `../lib/libipc.a' /home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../Makefile.inc:34:
warning: ignoring old commands for target `../lib/libipc.a'
make: Circular ../lib/libipc.a <- ../lib/libipc.a dependency dropped.

Quoted 7 lines
if [ -z "../lib" ] ; then \
         echo "Cowardly refusing to create empty archive"; \
         exit 1; \
     fi

ar -rc "../lib/libipc.a" ../lib
ar: ../lib/libipc.a: Error reading ../lib: Is a directory
make: *** [../lib/libipc.a] Error 1

Ah, there is the include $(abs_srcdir)/../Makefile.inc that sets LIB to ../lib/libipc.a which breaks the lib.mk as there now there are two rules for making the library. One that runs make in ../lib/ from the Makefile.inc and second in lib.mk. Renaming the LIB to LIBIPC in Makefile.inc fixes this one.

Quoted 11 lines

And I think that I found an another issue we should overcome - lib.mk defines MAKE_TARGETS:

MAKE_TARGETS := $(LIB)

generic_leaf_target.mk also does it.

So It should not be trivial to include both files (lib.mk and generic_leaf_target.mk) into one Makefile.
I suppose that in that case we have to implicitly define MAKE_TARGETS in our Makefile.

Now this one is more complicated, but solvable.

First of all we need to change the part in lib.mk to

MAKE_TARGETS += $(LIB)

Then define MAKE_TARGETS explicitly in the Makefile (we need that anyway for lib: tests dependency) and add LDFLAGS and LDLIBS. The full Makefile looks like:

top_srcdir ?= ../../../../..
include $(top_srcdir)/include/mk/testcases.mk

LIBSRCS := libmsgctl.c
INTERNAL_LIB := libmsgctl.a
MAKE_TARGETS := $(patsubst %.c,%,$(wildcard msgctl??.c))

$(MAKE_TARGETS): $(INTERNAL_LIB)

LDFLAGS += -L$(abs_builddir)
LDLIBS += -lmsgctl

include $(abs_srcdir)/../Makefile.inc
include $(top_srcdir)/include/mk/lib.mk include $(top_srcdir)/include/mk/generic_leaf_target.mk

See also attached patch with all the changes and check if that works for you. If so I will commit change to the lib.mk as separate patch and ask you to include changes in Makefile.inc in your patchset.

Signature · 2 lines
Cyril Hrubis
[email protected]
include/mk/lib.mk +1 -1
index 96c08eb..456db24 100644
@@ -46,7 +46,7 @@ ifneq ($(MAKECMDGOALS),install)
 LIB ?= $(INTERNAL_LIB)
 endif
 
-MAKE_TARGETS	:= $(LIB)
+MAKE_TARGETS	+= $(LIB)
 
 LIBSRCS		?= $(wildcard $(abs_srcdir)/*.c)
testcases/kernel/syscalls/ipc/Makefile.inc +3 -3
index a468e93..c7890a9 100644
@@ -25,15 +25,15 @@
 LDLIBS			+= -lipc
 LIBDIR			:= ../lib
 
-LIB			:= $(LIBDIR)/libipc.a
+LIBIPC			:= $(LIBDIR)/libipc.a
 
 $(LIBDIR):
 	mkdir -p "$@"
 
-$(LIB): $(LIBDIR)
+$(LIBIPC): $(LIBDIR)
 	$(MAKE) -C $^ -f "$(abs_srcdir)/$^/Makefile" all
 
-MAKE_DEPS		:= $(LIB)
+MAKE_DEPS		:= $(LIBIPC)
 
 CPPFLAGS		+= -I$(abs_srcdir)/$(LIBDIR)
testcases/kernel/syscalls/ipc/msgctl/Makefile +11 -1
index f467389..7f1688b 100644
@@ -17,7 +17,17 @@
 #
 
 top_srcdir              ?= ../../../../..
-
 include $(top_srcdir)/include/mk/testcases.mk
+
+LIBSRCS := libmsgctl.c
+INTERNAL_LIB := libmsgctl.a
+MAKE_TARGETS := $(patsubst %.c,%,$(wildcard msgctl??.c))
+
+$(MAKE_TARGETS): $(INTERNAL_LIB)
+
+LDFLAGS += -L$(abs_builddir)
+LDLIBS += -lmsgctl
+
 include $(abs_srcdir)/../Makefile.inc
+include $(top_srcdir)/include/mk/lib.mk
 include $(top_srcdir)/include/mk/generic_leaf_target.mk

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#7 lore raw
In reply to a message not in the archive

Hi!

Quoted 56 lines
Quoted 33 lines
Quoted 11 lines

And I think that I found an another issue we should overcome - lib.mk defines MAKE_TARGETS:

MAKE_TARGETS := $(LIB)

generic_leaf_target.mk also does it.

So It should not be trivial to include both files (lib.mk and generic_leaf_target.mk) into one Makefile.
I suppose that in that case we have to implicitly define MAKE_TARGETS in our Makefile.

Now this one is more complicated, but solvable.

First of all we need to change the part in lib.mk to

MAKE_TARGETS += $(LIB)

Then define MAKE_TARGETS explicitly in the Makefile (we need that anyway for lib: tests dependency) and add LDFLAGS and LDLIBS. The full Makefile looks like:

top_srcdir ?= ../../../../..
include $(top_srcdir)/include/mk/testcases.mk

LIBSRCS := libmsgctl.c
INTERNAL_LIB := libmsgctl.a
MAKE_TARGETS := $(patsubst %.c,%,$(wildcard msgctl??.c))

$(MAKE_TARGETS): $(INTERNAL_LIB)

LDFLAGS += -L$(abs_builddir)
LDLIBS += -lmsgctl

Quoted 7 lines

include $(abs_srcdir)/../Makefile.inc
include $(top_srcdir)/include/mk/lib.mk include $(top_srcdir)/include/mk/generic_leaf_target.mk

See also attached patch with all the changes and check if that works for you. If so I will commit change to the lib.mk as separate patch and ask you to include changes in Makefile.inc in your patchset.

Yes, It works.

But the compilation is performed as follows:

gcc -g -O2 -g -O2 -fno-strict-aliasing -pipe -Wall

(quoted diff) +0 -8
-I/home/stas/ltp/testcases/kernel/include 
-I/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../lib 
-I../../../../../include -I../../../../../include 
-I../../../../../include -I../../../../../include 
-L/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl 
-L/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../lib 
-L../../../../../lib -L../../../../../lib  msgctl01.c libmsgctl.a -lltp 
-lmsgctl -lipc -o msgctl01
Quoted 2 lines

So gcc 'links' msgctl01.c and libmsgctl.a at once (and additionally is passed -lmsgctl option).

Ah, this one. Let's fix this, the handling of static libraries is too fragile and this may posibly break on some distribution (from my memory Ubuntu was the most problematic one).

Quoted 25 lines

How do you think, maybe introduce my favourite .INTERMEDIATE target into Makefile? :)

Like this:

MAKE_TARGET_OBJS := $(addsuffix .o,$(MAKE_TARGETS)) .INTERMEDIATE: $(MAKE_TARGET_OBJS)

$(MAKE_TARGET_OBJS): $(INTERNAL_LIB)

#$(MAKE_TARGETS): $(INTERNAL_LIB)

With this option the compilation is as follows:

gcc -g -O2 -g -O2 -fno-strict-aliasing -pipe -Wall

(quoted diff) +0 -4
-I/home/stas/ltp/testcases/kernel/include 
-I/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../lib 
-I../../../../../include -I../../../../../include 
-I../../../../../include -I../../../../../include  -c -o msgctl01.o

msgctl01.c
gcc -L/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl

(quoted diff) +0 -3
-L/home/stas/ltp/testcases/kernel/syscalls/ipc/msgctl/../lib 
-L../../../../../lib -L../../../../../lib  msgctl01.o   -lltp -lmsgctl 
-lipc -o msgctl01
Quoted 2 lines

I can't find any reasonable arguments for this approach. Just feels that it's more 'correct'.

That looks a bit like a workaround, but let's go with this one for now.

I will take a closer look later and change it if I find a better way. (I have a better build system documentation on my TODO)

Signature · 13 lines
Cyril Hrubis
[email protected]

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Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from 
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#9 lore raw
In reply to a message not in the archive

Hi!
Hi!

Quoted 3 lines

Could you commit the 'infrastructure' patches (lib.mk and etc) to master? After that I will send the updated patches to msgctl{08, 09, 10, 11} (with additional cleanup and this new Makefile).

Sure, looking at the previous emails and patches there is this change in include/mk/lib.mk that I will commit ASAP, the rest can go with your fixes.

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Cyril Hrubis
[email protected]

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#11 lore raw
In reply to a message not in the archive

Hi!

Quoted 9 lines
Quoted 6 lines
Quoted 3 lines

Could you commit the 'infrastructure' patches (lib.mk and etc) to master? After that I will send the updated patches to msgctl{08, 09, 10, 11} (with additional cleanup and this new Makefile).

Sure, looking at the previous emails and patches there is this change in include/mk/lib.mk that I will commit ASAP, the rest can go with your fixes.

Hi!

Maybe finish this?

The change in include/mk/lib.mk is in git since Oct 31 see abaa46 and I've said that the change in Makefile.inc should go with your patches.

Is there anything that is still missing?

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