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author | jhb <jhb@FreeBSD.org> | 2015-11-27 18:58:26 +0000 |
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committer | jhb <jhb@FreeBSD.org> | 2015-11-27 18:58:26 +0000 |
commit | ab35544b83d7494b58b4327d7a9e6d66da7ab579 (patch) | |
tree | 0b881610c55721cfde72c0eaeb1df3d9d654fd26 /sys/sparc64/include | |
parent | fd20cedd093bc1221cdc050bac05276a1b9a36ba (diff) | |
download | FreeBSD-src-ab35544b83d7494b58b4327d7a9e6d66da7ab579.zip FreeBSD-src-ab35544b83d7494b58b4327d7a9e6d66da7ab579.tar.gz |
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
Diffstat (limited to 'sys/sparc64/include')
-rw-r--r-- | sys/sparc64/include/kerneldump.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/sys/sparc64/include/kerneldump.h b/sys/sparc64/include/kerneldump.h index 7fad3fc..684c9e3 100644 --- a/sys/sparc64/include/kerneldump.h +++ b/sys/sparc64/include/kerneldump.h @@ -29,9 +29,9 @@ #define _MACHINE_KERNELDUMP_H_ struct sparc64_dump_reg { - vm_paddr_t dr_pa; - vm_offset_t dr_size; - vm_offset_t dr_offs; + uint64_t dr_pa; + uint64_t dr_size; + uint64_t dr_offs; }; /* @@ -40,11 +40,12 @@ struct sparc64_dump_reg { * would require some ugly hacks. */ struct sparc64_dump_hdr { - vm_offset_t dh_hdr_size; - vm_paddr_t dh_tsb_pa; - vm_size_t dh_tsb_size; - vm_size_t dh_tsb_mask; - int dh_nregions; + uint64_t dh_hdr_size; + uint64_t dh_tsb_pa; + uint64_t dh_tsb_size; + uint64_t dh_tsb_mask; + int32_t dh_nregions; + int32_t dh_pad; struct sparc64_dump_reg dh_regions[]; }; |