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authorAndrew Turner <andrew@FreeBSD.org>2014-10-19 20:23:31 +0000
committerAndrew Turner <andrew@FreeBSD.org>2014-10-19 20:23:31 +0000
commit58c47a70a3e064c971bd6b0a063f2abd2aca771f (patch)
tree0dc53de4acffc3c0e10494e9f09f0436479b1731 /lib/libkvm
parenta2d27ff80e44689177eec9d9bbe8faf8c25bb5c2 (diff)
Notes
Diffstat (limited to 'lib/libkvm')
-rw-r--r--lib/libkvm/kvm_arm.c36
1 files changed, 26 insertions, 10 deletions
diff --git a/lib/libkvm/kvm_arm.c b/lib/libkvm/kvm_arm.c
index ceff383f3bda..cc808e34db41 100644
--- a/lib/libkvm/kvm_arm.c
+++ b/lib/libkvm/kvm_arm.c
@@ -132,8 +132,10 @@ _kvm_initvtop(kvm_t *kd)
u_long kernbase, physaddr, pa;
pd_entry_t *l1pt;
Elf32_Ehdr *ehdr;
+ Elf32_Phdr *phdr;
size_t hdrsz;
char minihdr[8];
+ int found, i;
if (!kd->rawdump) {
if (pread(kd->pmfd, &minihdr, 8, 0) == 8) {
@@ -158,19 +160,33 @@ _kvm_initvtop(kvm_t *kd)
hdrsz = ehdr->e_phoff + ehdr->e_phentsize * ehdr->e_phnum;
if (_kvm_maphdrs(kd, hdrsz) == -1)
return (-1);
- nl[0].n_name = "kernbase";
+
+ phdr = (Elf32_Phdr *)((uint8_t *)ehdr + ehdr->e_phoff);
+ found = 0;
+ for (i = 0; i < ehdr->e_phnum; i++) {
+ if (phdr[i].p_type == PT_DUMP_DELTA) {
+ kernbase = phdr[i].p_vaddr;
+ physaddr = phdr[i].p_paddr;
+ found = 1;
+ break;
+ }
+ }
+
nl[1].n_name = NULL;
- if (kvm_nlist(kd, nl) != 0)
- kernbase = KERNBASE;
- else
- kernbase = nl[0].n_value;
+ if (!found) {
+ nl[0].n_name = "kernbase";
+ if (kvm_nlist(kd, nl) != 0)
+ kernbase = KERNBASE;
+ else
+ kernbase = nl[0].n_value;
- nl[0].n_name = "physaddr";
- if (kvm_nlist(kd, nl) != 0) {
- _kvm_err(kd, kd->program, "couldn't get phys addr");
- return (-1);
+ nl[0].n_name = "physaddr";
+ if (kvm_nlist(kd, nl) != 0) {
+ _kvm_err(kd, kd->program, "couldn't get phys addr");
+ return (-1);
+ }
+ physaddr = nl[0].n_value;
}
- physaddr = nl[0].n_value;
nl[0].n_name = "kernel_l1pa";
if (kvm_nlist(kd, nl) != 0) {
_kvm_err(kd, kd->program, "bad namelist");