src-test2/lib/libkvm/kvm.c, branch release/6.2.0

src-test2/lib/libkvm/kvm.c, branch release/6.2.0_cvs FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F6.2.0_cvs 2007-01-11T22:54:46Z This commit was manufactured by cvs2svn to create tag 2007-01-11T22:54:46Z cvs2svn cvs2svn@FreeBSD.org 2007-01-11T22:54:46Z urn:sha1:201f78d6b90635d961fa373ecd706e3786333b7e 'RELENG_6_2_0_RELEASE'. This commit was manufactured to restore the state of the 6.2-RELEASE image. MFC revision 1.28 2006-01-24T04:05:47Z Christian S.J. Peron csjp@FreeBSD.org 2006-01-24T04:05:47Z urn:sha1:8638017918061ba37b6cdbe173b427b29c06f516 date: 2006/01/15 20:30:13; author: csjp; state: Exp; lines: +5 -0 Validate that the supplied file is not empty before trying mmap(2) it and access the pages associated with it. Support crash dumps > 4GB in size on 32 bit platforms. _kvm_kvatop() 2005-06-29T22:39:41Z Peter Wemm peter@FreeBSD.org 2005-06-29T22:39:41Z urn:sha1:e55a0cd805e090e95a80e45f1822cb9a81981d3c returned an lseek offset in a "u_long *" value, which can't express >4GB offsets on 32 bit machines (eg: PAE). Change to "off_t *" for all. Support ELF crashdumps on i386 and amd64. Support PAE crashdumps on i386. This is done by auto-detecting the presence of the IdlePDPT which means that PAE is active. I used Marcel's _kvm_pa2off strategy and ELF header reader for ELF support on amd64. Paul Saab ported the amd64 changes to i386 and we implemented the PAE support from there. Note that gdb6 in the src tree uses whatever libkvm supports. If you want to debug an old crash dump, you might want to keep an old libkvm.so handy and use LD_PRELOAD or the like. This does not detect the old raw dump format. Approved by: re Avoid assignments to cast expressions. 2004-06-08T13:08:19Z Stefan Farfeleder stefanf@FreeBSD.org 2004-06-08T13:08:19Z urn:sha1:1a5ff9285a12b503be006a80e7906d49a39edeab Reviewed by: md5 Approved by: das (mentor) Allow to specify a character special device as a core file. 2003-10-29T14:02:16Z Hidetoshi Shimokawa simokawa@FreeBSD.org 2003-10-29T14:02:16Z urn:sha1:7928124aa56fb6616de0f96b5e705060f791875e This enable us to use /dev/fwmem* as a core file. e.g. ps -M /dev/fwmem0.0 -N kernel.debug dmesg -M /dev/fwmem0.0 -N kernel.debug gdb -k -c /dev/fwmem0.0 kernel.debug You need to set target EUI64 in hw.firewire.fwmem.eui64_hi/lo before opening the device. On the target arch, (PCI) bus address must be equivalent to physical address. (We cannot use this for sparc64 because of IOMMU.) No objection in: -audit Remove unnecssary <vm/swap_pager.h> includes. 2003-07-31T21:44:31Z Poul-Henning Kamp phk@FreeBSD.org 2003-07-31T21:44:31Z urn:sha1:8d2fd95bc823c4026585b1b152cba45d8190a188 These were probably not cleaned up back in whatever murky past these files were split into separate files. In kvm_openfiles/kvm_open, mark the file descriptors as close-on-exec. 2002-09-11T16:41:39Z Jacques Vidrine nectar@FreeBSD.org 2002-09-11T16:41:39Z urn:sha1:f76b74d6d79b1a08cd5da0e4fb18de74e9f1a063 Applications can not do this themselves, as the descriptors are hidden behind the opaque `kvm_t' type. Assume __STDC__, remove non-__STDC__ code. 2002-05-28T17:03:12Z Alfred Perlstein alfred@FreeBSD.org 2002-05-28T17:03:12Z urn:sha1:a82bbc730e20fe9dec4abeb1d949b2d02869032a Submitted by: keramida Remove __P() usage. 2002-03-21T23:54:04Z David E. O'Brien obrien@FreeBSD.org 2002-03-21T23:54:04Z urn:sha1:69160b1eb704d1931b536a65fcf50757ddbfc469 Remove 'register' keyword. 2002-03-21T23:39:28Z David E. O'Brien obrien@FreeBSD.org 2002-03-21T23:39:28Z urn:sha1:be04b6d19037a418b377ed2e33c02086cefa2b60