diff options
author | jhb <jhb@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f> | 2015-11-27 18:58:26 +0000 |
---|---|---|
committer | jhb <jhb@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f> | 2015-11-27 18:58:26 +0000 |
commit | 20d728c57e061417e87fdddb98e69555d3954326 (patch) | |
tree | 0b881610c55721cfde72c0eaeb1df3d9d654fd26 /rescue | |
parent | 5ed3a50a574a95ee90950367e986923fa346bda7 (diff) | |
download | freebsd-20d728c57e061417e87fdddb98e69555d3954326.tar.gz freebsd-20d728c57e061417e87fdddb98e69555d3954326.tar.bz2 |
Add support to libkvm for reading vmcores from other architectures.
- Add a kvaddr_type to represent kernel virtual addresses instead of
unsigned long.
- Add a struct kvm_nlist which is a stripped down version of struct nlist
that uses kvaddr_t for n_value.
- Add a kvm_native() routine that returns true if an open kvm descriptor
is for a native kernel and memory image.
- Add a kvm_open2() function similar to kvm_openfiles(). It drops the
unused 'swapfile' argument and adds a new function pointer argument for
a symbol resolving function. Native kernels still use _fdnlist() from
libc to resolve symbols if a resolver function is not supplied, but cross
kernels require a resolver.
- Add a kvm_nlist2() function similar to kvm_nlist() except that it uses
struct kvm_nlist instead of struct nlist.
- Add a kvm_read2() function similar to kvm_read() except that it uses
kvaddr_t instead of unsigned long for the kernel virtual address.
- Add a new kvm_arch switch of routines needed by a vmcore backend.
Each backend is responsible for implementing kvm_read2() for a given
vmcore format.
- Use libelf to read headers from ELF kernels and cores (except for
powerpc cores).
- Add internal helper routines for the common page offset hash table used
by the minidump backends.
- Port all of the existing kvm backends to implement a kvm_arch switch and
to be cross-friendly by using private constants instead of ones that
vary by platform (e.g. PAGE_SIZE). Static assertions are present when
a given backend is compiled natively to ensure the private constants
match the real ones.
- Enable all of the existing vmcore backends on all platforms. This means
that libkvm on any platform should be able to perform KVA translation
and read data from a vmcore of any platform.
Tested on: amd64, i386, sparc64 (marius)
Differential Revision: https://reviews.freebsd.org/D3341
git-svn-id: http://svn.freebsd.org/base/head@291406 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Diffstat (limited to 'rescue')
-rw-r--r-- | rescue/rescue/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/rescue/rescue/Makefile b/rescue/rescue/Makefile index 45a6cc21165..9b612d0a50e 100644 --- a/rescue/rescue/Makefile +++ b/rescue/rescue/Makefile @@ -53,7 +53,7 @@ CRUNCH_PROGS_bin= cat chflags chio chmod cp date dd df echo \ ed expr getfacl hostname kenv kill ln ls mkdir mv \ pkill ps pwd realpath rm rmdir setfacl sh sleep stty \ sync test -CRUNCH_LIBS+= -lcrypt -ledit -ljail -lkvm -ll -ltermcapw -lutil -lxo +CRUNCH_LIBS+= -lcrypt -ledit -ljail -lkvm -lelf -ll -ltermcapw -lutil -lxo CRUNCH_BUILDTOOLS+= bin/sh # Additional options for specific programs |