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John Baldwin 7f911abe54 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
2015-11-27 18:58:26 +00:00
..
atf META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
clang Remove redundant DPSRCS which were already in SRCS. 2015-11-25 20:38:07 +00:00
csu Annotate arm userspace assembler sources stating their tolerance to 2015-09-29 16:09:58 +00:00
libalias META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libarchive Remove redundant DPSRCS which were already in SRCS. 2015-11-25 20:38:07 +00:00
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libbsdstat libbsdstat: fix warnings, set WARNS 2014-03-11 01:10:44 +00:00
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libc Follow-up r291330: h_testbits.h is only needed by xdr_test. 2015-11-25 22:33:25 +00:00
libc_nonshared Add META_MODE support. 2015-06-13 19:20:56 +00:00
libc++ META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
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libcasper Let the nv.h and dnv.h includes be only in sys directory. 2015-07-02 21:58:10 +00:00
libclang_rt Amend 287626 by adding lib/libclang_rt/safestack. 2015-09-10 20:37:00 +00:00
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libcompat Add META_MODE support. 2015-06-13 19:20:56 +00:00
libcompiler_rt Merge ^/head r288197 through r288456. 2015-10-01 19:02:45 +00:00
libcrypt META MODE: Avoid dirdep dependency on lib/libmd. 2015-11-25 19:45:04 +00:00
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libdevctl Add a new device control utility for new-bus devices called devctl. This 2015-02-06 16:09:01 +00:00
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libdwarf META MODE: Fix 'make bootstrap-tools'. 2015-11-25 19:44:51 +00:00
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libefi use .Mt to mark up email addresses consistently (part3) 2014-06-23 08:23:05 +00:00
libelf META MODE: Fix 'make bootstrap-tools'. 2015-11-25 19:44:51 +00:00
libelftc Pay attention to MK_ELFTOOLCHAIN_TOOLS so we build the desired tools. 2015-06-15 20:11:15 +00:00
libevent META_MODE: Remove DEP_RELDIR from Makefile.depend files. 2015-09-25 19:26:08 +00:00
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libkiconv META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libkvm Add support to libkvm for reading vmcores from other architectures. 2015-11-27 18:58:26 +00:00
libldns META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
liblzma META MODE: Fix 'make bootstrap-tools'. 2015-11-25 19:44:51 +00:00
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libmd META MODE: Remove unneeded libmd.host dependency for xinstall.host. 2015-11-25 19:44:55 +00:00
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libnandfs Import work done under project/nand (@235533) into head. 2012-05-17 10:11:18 +00:00
libnetbsd Fix spelling error. 2015-11-05 01:54:38 +00:00
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libopenbsd Fix bootstrapping of libopenbsd on build hosts where KERN_PROC_NFDS 2015-11-14 23:43:59 +00:00
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libpcap META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libpjdlog Revert r284417 it is not necessary anymore 2015-06-15 19:28:07 +00:00
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libproc META MODE: Rework circular dependency guard for librtld_db/libproc. 2015-11-25 19:13:35 +00:00
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librtld_db META MODE: Rework circular dependency guard for librtld_db/libproc. 2015-11-25 19:13:35 +00:00
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libstand If we can't open the file, skip devclose() for the exclusive_file_system 2015-10-08 17:59:05 +00:00
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libtacplus Add META_MODE support. 2015-06-13 19:20:56 +00:00
libtelnet Add META_MODE support. 2015-06-13 19:20:56 +00:00
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libwrap Use LIBEXECDIR for /usr/libexec. 2015-11-26 01:14:40 +00:00
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liby Add META_MODE support. 2015-06-13 19:20:56 +00:00
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tests Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and 2015-10-12 08:16:03 +00:00
Makefile Always build libevent, which fixes the build for usr.sbin/ypldap after r291230. 2015-11-26 01:54:09 +00:00
Makefile.inc