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| author |   marc <marc@openbsd.org> | 2004-05-05 16:43:53 +0000 |
|---|---|---|
| committer | marc <marc@openbsd.org> | 2004-05-05 16:43:53 +0000 |
| commit | d963f85c7443d387e75ee92573c7c95e7ab8923a (patch) | |
| tree | 32bdd9a7ab778b6f082be262aa5923c348eb32ff | |
| parent | provide some filter examples; PR3764 (diff) | |
| download | wireguard-openbsd-d963f85c7443d387e75ee92573c7c95e7ab8923a.tar.xz wireguard-openbsd-d963f85c7443d387e75ee92573c7c95e7ab8923a.zip | |
write cpuhdr with info needed by libkvm to crash dumps.
| -rw-r--r-- | sys/arch/amd64/amd64/machdep.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/machdep.c b/sys/arch/amd64/amd64/machdep.c index f670be81df6..8fa5af7a800 100644 --- a/sys/arch/amd64/amd64/machdep.c +++ b/sys/arch/amd64/amd64/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.22 2004/03/11 21:06:01 deraadt Exp $ */ +/* $OpenBSD: machdep.c,v 1.23 2004/05/05 16:43:53 marc Exp $ */ /* $NetBSD: machdep.c,v 1.3 2003/05/07 22:58:18 fvdl Exp $ */ /*- @@ -126,6 +126,7 @@ #include <machine/biosvar.h> #include <machine/mpbiosvar.h> #include <machine/reg.h> +#include <machine/kcore.h> #include <dev/isa/isareg.h> #include <machine/isa_machdep.h> @@ -929,11 +930,17 @@ cpu_dump() int (*dump)(dev_t, daddr_t, caddr_t, size_t); char buf[dbtob(1)]; kcore_seg_t *segp; + cpu_kcore_hdr_t *cpuhdrp; + phys_ram_seg_t *memsegp; + int i; dump = bdevsw[major(dumpdev)].d_dump; memset(buf, 0, sizeof buf); segp = (kcore_seg_t *)buf; + cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; + memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + + ALIGN(sizeof(*cpuhdrp))]; /* * Generate a segment header. @@ -941,6 +948,20 @@ cpu_dump() CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); + /* + * Add the machine-dependent header info. + */ + cpuhdrp->ptdpaddr = PTDpaddr; + cpuhdrp->nmemsegs = mem_cluster_cnt; + + /* + * Fill in the memory segment descriptors. + */ + for (i = 0; i < mem_cluster_cnt; i++) { + memsegp[i].start = mem_clusters[i].start; + memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; + } + return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); } |