From: Jan Beulich <jbeulich@suse.com>
To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Julien Grall <julien@xen.org>, Wei Liu <wl@xen.org>,
Konrad Wilk <konrad.wilk@oracle.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@citrix.com>
Subject: [Xen-devel] [PATCH] build: fix dependency file generation with ENFORCE_UNIQUE_SYMBOLS=y
Date: Fri, 17 Jan 2020 16:44:28 +0100 [thread overview]
Message-ID: <73dd65c0-188c-7ba0-46b8-339943642c72@suse.com> (raw)
The recorded file, unless overridden by -MQ (or -MT) is that specified
by -o, which doesn't produce correct dependencies and hence will cause
failure to re-build when included files change.
Fixes: 81ecb38b83b0 ("build: provide option to disambiguate symbol names")
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/Rules.mk
+++ b/xen/Rules.mk
@@ -195,7 +195,7 @@ SRCPATH := $(patsubst $(BASEDIR)/%,%,$(C
%.o: %.c Makefile
ifeq ($(CONFIG_ENFORCE_UNIQUE_SYMBOLS),y)
- $(CC) $(CFLAGS) -c $< -o $(@D)/.$(@F).tmp
+ $(CC) $(CFLAGS) -c $< -o $(@D)/.$(@F).tmp -MQ $@
ifeq ($(clang),y)
$(OBJCOPY) --redefine-sym $<=$(SRCPATH)/$< $(@D)/.$(@F).tmp $@
else
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
next reply other threads:[~2020-01-17 15:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-17 15:44 Jan Beulich [this message]
2020-01-17 16:32 ` [Xen-devel] [PATCH] build: fix dependency file generation with ENFORCE_UNIQUE_SYMBOLS=y Andrew Cooper
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=73dd65c0-188c-7ba0-46b8-339943642c72@suse.com \
--to=jbeulich@suse.com \
--cc=George.Dunlap@eu.citrix.com \
--cc=andrew.cooper3@citrix.com \
--cc=ian.jackson@citrix.com \
--cc=julien@xen.org \
--cc=konrad.wilk@oracle.com \
--cc=sstabellini@kernel.org \
--cc=wl@xen.org \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).