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Ross Lagerwall [Mon, 9 Nov 2015 15:23:33 +0000 (15:23 +0000)]
Mangle local symbols to match Xen's mangling
Ross Lagerwall [Fri, 6 Nov 2015 12:55:25 +0000 (12:55 +0000)]
Implement run-time linking
Implement run-time linking and link at run-time by default. Still keep
the option to link at compile time.
Ross Lagerwall [Thu, 5 Nov 2015 14:10:17 +0000 (14:10 +0000)]
Allow specifying a build-id dependency
Allow including a build-id on which the created patch module depends.
This will then be verified by the hypervisor during patch apply.
Ross Lagerwall [Tue, 3 Nov 2015 14:44:49 +0000 (14:44 +0000)]
Add 64 bytes of padding to xsplice_patch_funcs structure
This gives the hypervisor scratch space for undo buffers and possibly
other uses.
Ross Lagerwall [Mon, 2 Nov 2015 13:36:43 +0000 (13:36 +0000)]
Include a build id in xsplice modules
The build id will in future be used to uniquely identify a module and
for module dependencies.
Ross Lagerwall [Fri, 23 Oct 2015 11:31:47 +0000 (12:31 +0100)]
Add support for hooks and ignore functions and sections
Ross Lagerwall [Fri, 23 Oct 2015 09:56:11 +0000 (10:56 +0100)]
Fix logging from common.c
Ross Lagerwall [Tue, 20 Oct 2015 15:51:37 +0000 (16:51 +0100)]
Add prelink tool
To simplify matters, prelink against a xen-syms file at compile time to
avoid having to resolve symbols at runtime. Create a prelink tool to do
this. Split out the elf loading and saving code of create-diff-object.c
into a common file which is shared by create-diff-object and prelink.
Ross Lagerwall [Tue, 20 Oct 2015 11:14:10 +0000 (12:14 +0100)]
Clean up code a bit
Make functions and variables static.
Remove trailing whitespace.
Remove unused functions.
Ross Lagerwall [Tue, 20 Oct 2015 11:12:16 +0000 (12:12 +0100)]
Add space for reverting the each applied function
Add an undo buffer to each xsplice_patch_func object to making reverting
functions easy.
Ross Lagerwall [Tue, 20 Oct 2015 10:52:20 +0000 (11:52 +0100)]
Fail if the function is too small to patch
Ross Lagerwall [Tue, 20 Oct 2015 09:55:16 +0000 (10:55 +0100)]
Add support for specifying the path to xen-syms
This allows linking against a different xen-syms from the original
built. This may be useful if the compile environment or source code is
slightly different.
Ross Lagerwall [Tue, 13 Oct 2015 13:41:07 +0000 (14:41 +0100)]
Don't create "reverse" patch modules
Ross Lagerwall [Mon, 12 Oct 2015 11:25:14 +0000 (12:25 +0100)]
Add project files
xsplice-build can build live patches for most XSAs. It is, however,
still prototype code.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>