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kpatch/kpatch-build/Makefile

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Makefile
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proper makefile support - setup the makefiles to support "make" and "make install", which builds the kpatch-build tools and installs everything in /usr/local. - update kpatch-build to support new paths - add "kpatch build" wrapper around kpatch-build
2014-02-13 16:04:35 +00:00
include ../Makefile.inc
first pass at a decent user interface This makes it somewhat easy to use. From the root git dir, just: sudo scripts/kpatch-build ~/foo.patch and it'll take care of everything, eventually spitting out the base module (kpatch.ko) and the hotpatch module kpatch-foo.ko. This is still all very crude, but a better user interface is coming soon.
2014-02-13 03:53:05 +00:00
kmod/core: update API and use hash table My apologies for the size of this commit. I combined these two features (updating API and using a hash table) into a single commit because their implementations are tightly coupled and I didn't want to have to add support for the old kpatch_funcs array with the new API just for the sake of splitting up the commit :-) - Update the core module API to get a more clear separation between core module and patch module. This is cleaner and will help our case for getting the core module merged upstream into the kernel. - Convert the old kpatch_funcs array into a hash table. This is so much nicer performance-wise and everything-else-wise than that ugly old array. - Do the incremental patching in stop machine. This ensures that the funcs hash is up to date and we don't miss anything. - Disable preemption in the ftrace handler when accessing the func hash. That way we don't get conflicts with the stop_machine handler updating the hash.
2014-03-14 21:41:00 +00:00
CFLAGS += -I../kmod/patch -Wall -g
proper makefile support - setup the makefiles to support "make" and "make install", which builds the kpatch-build tools and installs everything in /usr/local. - update kpatch-build to support new paths - add "kpatch build" wrapper around kpatch-build
2014-02-13 16:04:35 +00:00
LDFLAGS = -lelf
major rewrite to per-section function/data model Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-02-11 16:25:48 +00:00
dynrelas support, obsoleting link-vmlinux-syms This adds dynamic linking support for the patch modules. It is the first step toward supporting patching module code and relocatable kernels. Rela entries that reference non-included local and non-exported global symbols are converted to "dynrelas". These dynrelas are relocations that are done by the core module, not the kernel module linker. This allows the core module to apply offsets to the base addresses found in the base vmlinux or module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Conflicts: kpatch-build/kpatch-build
2014-05-14 20:59:05 +00:00
TARGETS = create-diff-object
major rewrite to per-section function/data model Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-02-11 16:25:48 +00:00
proper makefile support - setup the makefiles to support "make" and "make install", which builds the kpatch-build tools and installs everything in /usr/local. - update kpatch-build to support new paths - add "kpatch build" wrapper around kpatch-build
2014-02-13 16:04:35 +00:00
all: $(TARGETS)
merge add-patches-section functionality into create-obj-diff In preparation for dynamic symbol linking, the symbol lookup logic is going to move into create-diff-obj anyway. We might as well minimize the code duplication and pull this into create-diff-obj. This avoids having to re-parse the ELF file modify it in-place. Signed-off-by: Seth Jennings <sjenning@redhat.com> Conflicts: kpatch-build/kpatch-build
2014-05-14 20:43:58 +00:00
create-diff-object: create-diff-object.c list.h lookup.c lookup.h
$(CC) $(CFLAGS) create-diff-object.c lookup.c -o $@ $(LDFLAGS)
convert from arrays to linked-lists Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-05-06 22:15:38 +00:00
proper makefile support - setup the makefiles to support "make" and "make install", which builds the kpatch-build tools and installs everything in /usr/local. - update kpatch-build to support new paths - add "kpatch build" wrapper around kpatch-build
2014-02-13 16:04:35 +00:00
install: all
$(INSTALL) -d $(LIBEXECDIR)
make kpatch-build a first class script kpatch-build is outgrowing the kpatch script and probably is a better fit as its own utility instead of being wrapped by kpatch. Install kpatch-build into /usr/local/bin, remove the kpatch wrapper around it, and update the README accordingly.
2014-03-10 14:24:40 +00:00
$(INSTALL) $(TARGETS) $(LIBEXECDIR)
$(INSTALL) -d $(BINDIR)
$(INSTALL) kpatch-build $(BINDIR)
major rewrite to per-section function/data model Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-02-11 16:25:48 +00:00
add uninstall target Make it easy to clean up an install Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-03-20 14:29:06 +00:00
uninstall:
$(RM) -R $(LIBEXECDIR)
$(RM) $(BINDIR)/kpatch-build
major rewrite to per-section function/data model Signed-off-by: Seth Jennings <sjenning@redhat.com>
2014-02-11 16:25:48 +00:00
clean:
proper makefile support - setup the makefiles to support "make" and "make install", which builds the kpatch-build tools and installs everything in /usr/local. - update kpatch-build to support new paths - add "kpatch build" wrapper around kpatch-build
2014-02-13 16:04:35 +00:00
$(RM) $(TARGETS)