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331722 |
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29-Mar-2018 |
eadler |
Revert r330897:
This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code.
Revert with prejudice.
This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes.
Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes.
Requested by: gjb (re)
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330897 |
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14-Mar-2018 |
eadler |
Partial merge of the SPDX changes
These changes are incomplete but are making it difficult to determine what other changes can/should be merged.
No objections from: pfg
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316126 |
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29-Mar-2017 |
ngie |
MFC r315697:
libkvm: fix warning issues post-r291406
- Fix -Wunused warnings with *_native detection handlers by marking `kd` __unused, except with arm/mips, where a slightly more complicated scheme is required to handle the native case vs the non-native case. - Fix -Wmissing-variable-declarations warnings by marking struct kvm_arch objects static.
Tested with: WIP test code (D10024) // kgdb7121 (i386 crash/kernel on amd64)
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302408 |
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07-Jul-2016 |
gjb |
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle. Prune svn:mergeinfo from the new branch, as nothing has been merged here.
Additional commits post-branch will follow.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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298485 |
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22-Apr-2016 |
ngie |
Fix up pointer issues with lib/libkvm
In particular, - avoid dereferencing NULL pointers - test pointers against NULL, not 0 - test for errout == NULL in the top-level functions (kvm_open, kvm_openfiles, kvm_open2, etc) - Replace a realloc and free on failure with reallocf
Found with: devel/cocchinelle
Differential Revision: https://reviews.freebsd.org/D5954 MFC after: 1 week Reviewed by: jhb Sponsored by: EMC / Isilon Storage Division
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291406 |
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27-Nov-2015 |
jhb |
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
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291372 |
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26-Nov-2015 |
jhb |
Remove trailing whitespace.
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217744 |
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23-Jan-2011 |
uqs |
libkvm code janitoring
- make WARNS=6 clean for archs w/o strict alignment requirments - add const, ANSIfy, remove unused vars, cast types for comparison - thanks to differing definitions of VM_MIN_ADDRESS across our archs, we need to trick the compiler to not complain about signedness. We could either fix VM_MIN_ADDRESS to always be a simple integer or make the check conditional on $ARCH.
Closes PRs: kern/42386, kern/83364 Reviewed by: bde
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194186 |
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14-Jun-2009 |
ed |
Fix missing includes of <string.h>, to silence some compiler warnings.
Submitted by: Pawel Worach
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183985 |
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17-Oct-2008 |
delphij |
_kvm_malloc allocates memory through calloc() which returns zeroed memory, so don't redo the initialization.
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159246 |
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05-Jun-2006 |
delphij |
Include strings.h for bzero()
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157911 |
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21-Apr-2006 |
peter |
Teach libkvm how to read minidumps. It turns out that minidumps are far more convenient for libkvm to work with because of the page table block at the beginning. As a result, the MD code is smaller.
libkvm will automatically detect old vs mini dumps on i386 and amd64.
libkvm will handle i386 PAE and non-PAE modes. There is a PAE flag in the i386 minidump header to signal the width of the entries in the page table block.
Other convenient values are also present, such as kernbase and the direct map addresses on amd64.
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