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* contrib/elf2dmp: Build download.o with CURL_CFLAGSPeter Maydell2019-07-221-0/+3
| | | | | | | | | | | | | | | | | | contrib/elf2dmp has a source file which uses curl/curl.h; although we link the final executable with CURL_LIBS, we forgot to build this source file with CURL_CFLAGS, so if the curl header is in a place that's not already on the system include path then it will fail to build. Add a line specifying the cflags needed for download.o; while we are here, bring the specification of the libs into line with this, since using a per-object variable setting is preferred over adding them to the final executable link line. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20190719100955.17180-1-peter.maydell@linaro.org
* contrib: add elf2dmp toolViktor Prutyanov2018-10-021-0/+1
elf2dmp is a converter from ELF dump (produced by 'dump-guest-memory') to Windows MEMORY.DMP format (also know as 'Complete Memory Dump') which can be opened in WinDbg. This tool can help if VMCoreInfo device/driver is absent in Windows VM and 'dump-guest-memory -w' is not available but dump can be created in ELF format. The tool works as follows: 1. Determine the system paging root looking at GS_BASE or KERNEL_GS_BASE to locate the PRCB structure and finds the kernel CR3 nearby if QEMU CPU state CR3 is not suitable. 2. Find an address within the kernel image by dereferencing the first IDT entry and scans virtual memory upwards until the start of the kernel. 3. Download a PDB matching the kernel from the Microsoft symbol store, and figure out the layout of certain relevant structures necessary for the dump. 4. Populate the corresponding structures in the memory image and create the appropriate dump header. Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com> Message-Id: <1535546488-30208-3-git-send-email-viktor.prutyanov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>