From: Slavomir Kaslev <kaslevs@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org, slavomir.kaslev@gmail.com
Subject: [RFC PATCH v6 01/11] trace-cmd: Detect if vsockets are available
Date: Thu, 14 Feb 2019 16:13:25 +0200 [thread overview]
Message-ID: <20190214141335.28144-2-kaslevs@vmware.com> (raw)
In-Reply-To: <20190214141335.28144-1-kaslevs@vmware.com>
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Detect and define VSOCK if vsockets are available on the system.
This macro is used to disable VM remote tracing features on older kernels.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Slavomir Kaslev <kaslevs@vmware.com>
---
Makefile | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Makefile b/Makefile
index f0f7e92..ce16b83 100644
--- a/Makefile
+++ b/Makefile
@@ -204,6 +204,13 @@ CFLAGS ?= -g -Wall
CPPFLAGS ?=
LDFLAGS ?=
+VSOCK_DEFINED := $(shell if (echo "\#include <linux/vm_sockets.h>" | $(CC) -E - >/dev/null 2>&1) ; then echo 1; else echo 0 ; fi)
+
+export VSOCK_DEFINED
+ifeq ($(VSOCK_DEFINED), 1)
+CFLAGS += -DVSOCK
+endif
+
export CFLAGS
export INCLUDES
--
2.19.1
next prev parent reply other threads:[~2019-02-14 14:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 14:13 [RFC PATCH v6 00/11] Add VM kernel tracing over vsockets and FIFOs Slavomir Kaslev
2019-02-14 14:13 ` Slavomir Kaslev [this message]
2019-02-14 14:13 ` [RFC PATCH v6 02/11] trace-cmd: Add tracecmd_create_recorder_virt function Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 03/11] trace-cmd: Add TRACE_REQ and TRACE_RESP messages Slavomir Kaslev
2019-02-14 18:51 ` Steven Rostedt
2019-02-14 14:13 ` [RFC PATCH v6 04/11] trace-cmd: Add buffer instance flags for tracing in guest and agent context Slavomir Kaslev
2019-02-14 20:05 ` Steven Rostedt
2019-02-18 14:24 ` Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 05/11] trace-cmd: Add VM kernel tracing over vsockets transport Slavomir Kaslev
2019-02-14 20:03 ` Steven Rostedt
2019-02-18 14:26 ` Slavomir Kaslev
2019-02-18 14:28 ` Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 06/11] trace-cmd: Use splice(2) for vsockets if available Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 07/11] trace-cmd: Add `trace-cmd setup-guest` command Slavomir Kaslev
2019-02-14 20:41 ` Steven Rostedt
2019-02-18 14:37 ` Slavomir Kaslev
2019-02-18 17:44 ` Steven Rostedt
2019-02-18 20:07 ` Slavomir Kaslev
2019-02-18 20:54 ` Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 08/11] trace-cmd: Try to autodetect number of guest CPUs in setup-guest if not specified Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 09/11] trace-cmd: Add setup-guest flag for attaching FIFOs to the guest VM config Slavomir Kaslev
2019-02-14 14:13 ` [RFC PATCH v6 10/11] trace-cmd: Add splice() recording from FIFO without additional pipe buffer Slavomir Kaslev
2019-02-14 21:07 ` Steven Rostedt
2019-02-14 14:13 ` [RFC PATCH v6 11/11] trace-cmd: Add VM tracing over FIFOs transport Slavomir Kaslev
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