Fixed the issue of modifying parallel compilation

This commit is contained in:
zhanchengbin 2021-10-09 15:14:34 +08:00
parent 6a8c3aad06
commit 5c12e46926
3 changed files with 114 additions and 1 deletions

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@ -0,0 +1,70 @@
From 519fd9a5d08d85f3d9cb4192d624fe8351e40232 Mon Sep 17 00:00:00 2001
From: "Robin H. Johnson" <robbat2@gentoo.org>
Date: Tue, 23 Jan 2018 17:57:55 -0500
Subject: [PATCH] fix parallel build failures
When building in parallel, the btreplay/btrecord and btreplay/btreplay
targets cause make to kick off two jobs for `make -C btreplay` and they
sometimes end up clobbering each other. We could fix this by making one
a dependency of the other, but it's a bit cleaner to refactor things to
be based on subdirs. This way changes in subdirs also get noticed:
$ touch btreplay/*.[ch]
$ make
<btreplay is now correctly updated>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
Makefile | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/Makefile b/Makefile
index 68de591..5917814 100644
--- a/Makefile
+++ b/Makefile
@@ -4,23 +4,19 @@ ALL_CFLAGS = $(CFLAGS) -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
PROGS = blkparse blktrace verify_blkparse blkrawverify blkiomon
LIBS = -lpthread
SCRIPTS = btrace
+SUBDIRS = btreplay btt iowatcher
-ALL = $(PROGS) $(SCRIPTS) btt/btt btreplay/btrecord btreplay/btreplay \
+ALL = $(PROGS) $(SCRIPTS)
+INSTALL_ALL = $(ALL) btt/btt btreplay/btrecord btreplay/btreplay \
btt/bno_plot.py iowatcher/iowatcher
-all: $(ALL)
+all: $(ALL) $(SUBDIRS)
-btt/btt:
- $(MAKE) -C btt
-
-iowatcher/iowatcher:
- $(MAKE) -C iowatcher
-
-btreplay/btrecord:
- $(MAKE) -C btreplay
-
-btreplay/btreplay:
- $(MAKE) -C btreplay
+# We always descend into subdirs because they contain their own dependency
+# information which we don't track in this top level Makefile.
+$(SUBDIRS):
+ $(MAKE) -C $@
+.PHONY: $(SUBDIRS)
%.o: %.c
$(CC) -o $*.o -c $(ALL_CFLAGS) $<
@@ -85,7 +81,7 @@ install: all
$(INSTALL) -m 755 -d $(DESTDIR)$(bindir)
$(INSTALL) -m 755 -d $(DESTDIR)$(mandir)/man1
$(INSTALL) -m 755 -d $(DESTDIR)$(mandir)/man8
- $(INSTALL) -m 755 $(ALL) $(DESTDIR)$(bindir)
+ $(INSTALL) -m 755 $(INSTALL_ALL) $(DESTDIR)$(bindir)
$(INSTALL) -m 644 doc/*.1 $(DESTDIR)$(mandir)/man1
$(INSTALL) -m 644 doc/*.8 $(DESTDIR)$(mandir)/man8
--
1.8.3.1

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@ -0,0 +1,38 @@
From f4f8ef7cdea138cfaa2f3ca0ee31fa23d3bcf1cc Mon Sep 17 00:00:00 2001
From: Gwendal Grignou <gwendal@chromium.org>
Date: Thu, 16 Jan 2020 12:33:26 -0800
Subject: [PATCH] fix parallel build of btt and blkiomon
rbtree.c is used by both binaries. It is possible that when make -C btt
is invoked rbtree.o does not exist yet, but is already schedule by the
compilation of blkiomon. That could result in recompiling rbtree.o again
for btt/btt.
In that case, at install time, make will recompile blkiomon which can
fail in gentoo, because CC variable is not overriden by ebuild script at
install time. (see https://bugs.gentoo.org/705594)
Add a dependency on SUBDIRS to wait for all binary in . to be compiled.
It will guarante rbtree.o exists.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 5917814..eb3c6a1 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ all: $(ALL) $(SUBDIRS)
# We always descend into subdirs because they contain their own dependency
# information which we don't track in this top level Makefile.
-$(SUBDIRS):
+$(SUBDIRS): $(PROGS)
$(MAKE) -C $@
.PHONY: $(SUBDIRS)
--
1.8.3.1

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@ -1,6 +1,6 @@
Name: blktrace
Version: 1.2.0
Release: 25
Release: 26
Summary: Block IO tracer in the Linux kernel
License: GPLv2+
Source: http://brick.kernel.dk/snaps/blktrace-%{version}.tar.bz2
@ -26,6 +26,8 @@ Patch14: 0014-blkparse-Allow-request-tracking-on-non-md-dm-devices.patch
Patch15: 0015-blkparse-Initialize-and-test-for-undefined-request-t.patch
Patch16: 0016-blktrace-fix-exit-directly-when-nthreads-running.patch
Patch17: 0017-blktrace-Makefile-add-fstack-protector-strong-flag.patch
Patch18: 0018-fix-parallel-build-failures.patch
Patch19: 0019-fix-parallel-build-of-btt-and-blkiomon.patch
%description
blktrace is a block layer IO tracing mechanism which provides detailed
@ -90,6 +92,9 @@ comparing the differences between different benchmark runs.
%{_mandir}/man1/iowatcher.*
%changelog
* Sat Oct 09 2021 zhanchengbin <zhanchengbin1@huawei.com> - 1.2.0-26
- Fixed the issue of modifying parallel compilation
* Wed Sep 29 2021 Wenchao Hao <haowenchao@huawei.com> - 1.2.0-25
- NOP:nothing but to make it able to sync between differnt branches