From: Wei Liu <wei.liu2@citrix.com>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <Ian.Jackson@eu.citrix.com>,
Wei Liu <wei.liu2@citrix.com>, Jan Beulich <JBeulich@suse.com>
Subject: [PATCH v3 1/2] fuzz/x86emul: avoid race in link farm rune
Date: Mon, 20 Feb 2017 12:05:34 +0000 [thread overview]
Message-ID: <20170220120535.25343-2-wei.liu2@citrix.com> (raw)
In-Reply-To: <20170220120535.25343-1-wei.liu2@citrix.com>
Several `ln -sf` can race with each other and cause error like:
14:43:56 00:07:06 O: ln: cannot remove 'asm': No such file or directory
Provide dedicated targets for soft-linking directories.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
v3: use pattern matching rule
---
tools/fuzz/x86_instruction_emulator/Makefile | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/tools/fuzz/x86_instruction_emulator/Makefile b/tools/fuzz/x86_instruction_emulator/Makefile
index fede7e9afd..b0ea31b2b0 100644
--- a/tools/fuzz/x86_instruction_emulator/Makefile
+++ b/tools/fuzz/x86_instruction_emulator/Makefile
@@ -8,11 +8,15 @@ else
x86-instruction-emulator-fuzzer-all:
endif
-x86_emulate/x86_emulate.c x86_emulate/x86_emulate.h:
- [ -L x86_emulate ] || ln -sf $(XEN_ROOT)/xen/arch/x86/x86_emulate .
+x86_emulate:
+ [ -L $@ ] || ln -sf $(XEN_ROOT)/xen/arch/x86/$@ .
-asm/x86-vendors.h asm/x86-defns.h asm/msr-index.h:
- [ -L asm ] || ln -sf $(XEN_ROOT)/xen/include/asm-x86 asm
+x86_emulate/x86_emulate.c x86_emulate/x86_emulate.h: x86_emulate
+
+asm:
+ [ -L $@ ] || ln -sf $(XEN_ROOT)/xen/include/asm-x86 $@
+
+asm/%: asm ;
x86_emulate.c x86_emulate.h: %:
[ -L $* ] || ln -sf $(XEN_ROOT)/tools/tests/x86_emulator/$*
--
2.11.0
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next prev parent reply other threads:[~2017-02-20 12:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-20 12:05 [PATCH v3 0/2] Fuzz/x86emul and x86emul/test fixes Wei Liu
2017-02-20 12:05 ` Wei Liu [this message]
2017-02-20 12:37 ` [PATCH v3 1/2] fuzz/x86emul: avoid race in link farm rune Jan Beulich
2017-02-20 14:05 ` Wei Liu
2017-02-20 14:28 ` Jan Beulich
2017-02-20 12:05 ` [PATCH v3 2/2] x86emul/test: " Wei Liu
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