Commit Graph
19 Commits
Author SHA1 Message Date
Ian Campbell 2bb41caf16 blktap2/libvhd: Build shared objects using -fPIC.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2012-02-13 17:29:50 +00:00
Roger Pau Monne a69dda2bce blktap2/vhd: add -liconv when linking if using libiconv
If libiconv is detected on the system add -liconv when linking the
libvhd library.

If -liconv is not added when compiling libvhd with libiconv the
following error occours when linking vhd-util and vhd-update:

gcc     -o vhd-util vhd-util.o -Llib -lvhd
lib/libvhd.so: undefined reference to `libiconv_open'
lib/libvhd.so: undefined reference to `libiconv_close'
lib/libvhd.so: undefined reference to `libiconv'

Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-12-20 08:31:40 +01:00
Ian Campbell 61d0fe74c6 tools: Remove $(CFLAGS) from links lines.
The relevant variable in these circumstances is called $(LDFLAGS).

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-03-31 19:32:18 +01:00
Ian Campbell 5ba627e3ab tools: drop further uses of -Wp,-MD,.$(@F).d to generate dependencies.
19025:bd78714b8594 switched to "-MMD -MF" in preference, adding the
correct runes to tools/Rules.mk but appears to have missed some other
uses of -Wp,...

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-03-23 15:56:46 +00:00
Ian Campbell 0394b57cda tools: support building with --as-needed
Tested by forcing --as-needed via tools/Rules.mk but this is included
since the intention is simply to support diustros which default to
--as-needed, not to enable it everywhere.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-03-17 19:15:42 +00:00
Ian Campbell f45b59ff53 tools/blktap2/libvhd: move uuid wrapper functions out of line.
This isolates users of libvhd from the need to know about the
different OS schemes for UUIDs.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Daniel Stodden <daniel.stodden@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-03-17 19:14:57 +00:00
Ian Campbell 05dbcc741d tools/blktap2: push uuid wrapper functions down into libvhd.
Nothing else uses them.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-03-17 19:13:53 +00:00
Keir Fraser 547cb1849c build: Make XEN_ROOT an absolute path.
Otherwise make can search the path relative to certain standard paths
such as /usr/include (e.g., the line '-include $(XEN_ROOT)/.config' in
Config.mk suffers from this).

Signed-off-by: Keir Fraser <keir@xen.org>
2011-03-17 10:36:25 +00:00
Michael Young d3e77ae6b6 tools/Makefiles: install libvhd and libblktap with INSTALL_PROG
Shared libraries should be executable.

(rpm (4.9.0) doesn't automatically supply a "provides" entry for a
library unless it is executable.  Non-executable libraries can cause
other trouble too.)

Signed-off-by: Michael Young <m.a.young@durham.ac.uk>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
2011-02-01 19:19:58 +00:00
Stefano Stabellini ba26a1e197 split LDLIBS from LDFLAGS to fix link errors in recent toolchains
Linker command lines are order-sensitive.
Move linker options -Lfoo -lfoo from LDFLAGS to LDLIBS and place this new
variable after the objects to link. This resolves build errors in xenpagin
and blktap with recent toolchains.

rename SHLIB_CFLAGS to SHLIB_LDFLAGS
rename LDFLAGS_* to LDLIBS_*
move LDFLAGS usage after CFLAGS in CC calls
remove stale comments in xenpaging Makefile

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-08-11 18:02:32 +01:00
Keir Fraser bc43f6118d blktap/fs-back: Build fixes for Fedora 13
1. Some files use stat, mkfifo, mkdir etc. without including
sys/stat.h

2. Some programs link against libpthread without a -lpthread compile
option. The compile used to work if this library happened to be used
by one of the other libraries that was being linked against, but
Fedora 13 has stopped allowing this.

From: M A Young <m.a.young@durham.ac.uk>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2010-03-15 17:08:29 +00:00
Keir Fraser f3bbcc7995 tools: Do not append trailing slash to XEN_ROOT in Makefiles
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2010-02-04 09:03:42 +00:00
Keir Fraser ab7dec0345 blktap2: Fix compile warning with gcc4.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2009-07-08 11:00:23 +01:00
Keir Fraser cfafda4169 tools: Always check for __linux__ not __Linux__
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2009-07-02 21:45:30 +01:00
Keir Fraser 1d998d8224 blktap2: A final few NetBSD fixes
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
2009-06-24 15:24:53 +01:00
Keir Fraser a61c4df7f6 blktap2: Further netbsd build fixes.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2009-06-24 14:03:20 +01:00
Keir Fraser 2b8ba91b50 blktap2: portability fixes for NetBSD
- Use standard off_t and lseek() instead of non-portable off64_t and
  lseek64()
- Use uuid API as documented in DCE 1.1 RPC specification
- Add NetBSD implementation for blk_getimagesize() and
  blk_getsectorsize()
- Use blk_getimagesize() and blk_getsectorsize()
- Fix uuid header check

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
2009-06-23 17:24:14 +01:00
Keir Fraser 3026986b0f blktap2: fix makefile of blktap2
- clean up to use SUBDIRS-y
- With parallel make, libvhd might not be created before
  link. guarantee it.
- use LDFLAGS for link which is set by upper level makefiles.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-05-28 10:02:57 +01:00
Keir Fraser bd5573a630 blktap2: a completely rewritten blktap implementation
Benefits to blktap2 over the old version of blktap:

* Isolation from xenstore - Blktap devices are now created directly on
   the linux dom0 command line, rather than being spawned in response
   to XenStore events.  This is handy for debugging, makes blktap
   generally easier to work with, and is a step toward a generic
   user-level block device implementation that is not Xen-specific.

* Improved tapdisk infrastructure: simpler request forwarding, new
   request scheduler, request merging, more efficient use of AIO.

* Improved tapdisk error handling and memory management.  No
   allocations on the block data path, IO retry logic to protect
   guests
   transient block device failures.  This has been tested and is known
   to work on weird environments such as NFS soft mounts.

* Pause and snapshot of live virtual disks (see xmsnap script).

* VHD support.  The VHD code in this release has been rigorously
   tested, and represents a very mature implementation of the VHD
   image
   format.

* No more duplication of mechanism with blkback.  The blktap kernel
   module has changed dramatically from the original blktap.  Blkback
   is now always used to talk to Xen guests, blktap just presents a
   Linux gendisk that blkback can export.  This is done while
   preserving the zero-copy data path from domU to physical device.

These patches deprecate the old blktap code, which can hopefully be
removed from the tree completely at some point in the future.

Signed-off-by: Jake Wires <jake.wires@citrix.com>
Signed-off-by: Dutch Meyer <dmeyer@cs.ubc.ca>
2009-05-26 11:52:31 +01:00