diff options
| author | Itsuro ODA <oda@valinux.co.jp> | 2008-03-31 13:26:04 +0900 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2008-04-02 16:34:15 +0900 |
| commit | 1e1ee02f95e69890fb98d71cb512261ac9283623 (patch) | |
| tree | 6fffe3dc10daa44ef08ef8224d884645ec010c8b /kexec/crashdump.c | |
| parent | 9e959db12a671a71934a765d15aaf082f0a4f886 (diff) | |
extract vmcoreinfo from /proc/vmcore for Xen
This patch is for kexec-tools-testing-20080324.
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/crashdump.c')
| -rw-r--r-- | kexec/crashdump.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/kexec/crashdump.c b/kexec/crashdump.c index b014dcd..e0ba36d 100644 --- a/kexec/crashdump.c +++ b/kexec/crashdump.c @@ -110,10 +110,8 @@ int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len) return 0; } -/* Returns the physical address of start of crash notes buffer for a kernel. */ -int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len) +static int get_vmcoreinfo(char *kdump_info, uint64_t *addr, uint64_t *len) { - char kdump_info[PATH_MAX]; char line[MAX_LINE]; int count; FILE *fp; @@ -122,9 +120,8 @@ int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len) *addr = 0; *len = 0; - sprintf(kdump_info, "/sys/kernel/vmcoreinfo"); if (!(fp = fopen(kdump_info, "r"))) - return 0; + return -1; if (!fgets(line, sizeof(line), fp)) die("Cannot parse %s: %s\n", kdump_info, strerror(errno)); @@ -137,3 +134,14 @@ int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len) return 0; } + +/* Returns the physical address of start of crash notes buffer for a kernel. */ +int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len) +{ + return get_vmcoreinfo("/sys/kernel/vmcoreinfo", addr, len); +} + +int get_xen_vmcoreinfo(uint64_t *addr, uint64_t *len) +{ + return get_vmcoreinfo("/sys/hypervisor/vmcoreinfo", addr, len); +} |