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lib/libkvm/kvm_minidump_arm.c
| Show First 20 Lines • Show All 80 Lines • ▼ Show 20 Lines | _arm_minidump_freevtop(kvm_t *kd) | ||||
| free(vm); | free(vm); | ||||
| kd->vmst = NULL; | kd->vmst = NULL; | ||||
| } | } | ||||
| static int | static int | ||||
| _arm_minidump_initvtop(kvm_t *kd) | _arm_minidump_initvtop(kvm_t *kd) | ||||
| { | { | ||||
| struct vmstate *vmst; | struct vmstate *vmst; | ||||
| off_t off, sparse_off; | off_t off, dump_avail_off, sparse_off; | ||||
| vmst = _kvm_malloc(kd, sizeof(*vmst)); | vmst = _kvm_malloc(kd, sizeof(*vmst)); | ||||
| if (vmst == NULL) { | if (vmst == NULL) { | ||||
| _kvm_err(kd, kd->program, "cannot allocate vm"); | _kvm_err(kd, kd->program, "cannot allocate vm"); | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| kd->vmst = vmst; | kd->vmst = vmst; | ||||
| if (pread(kd->pmfd, &vmst->hdr, | if (pread(kd->pmfd, &vmst->hdr, | ||||
| sizeof(vmst->hdr), 0) != sizeof(vmst->hdr)) { | sizeof(vmst->hdr), 0) != sizeof(vmst->hdr)) { | ||||
| _kvm_err(kd, kd->program, "cannot read dump header"); | _kvm_err(kd, kd->program, "cannot read dump header"); | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| if (strncmp(MINIDUMP_MAGIC, vmst->hdr.magic, | if (strncmp(MINIDUMP_MAGIC, vmst->hdr.magic, | ||||
| sizeof(vmst->hdr.magic)) != 0) { | sizeof(vmst->hdr.magic)) != 0) { | ||||
| _kvm_err(kd, kd->program, "not a minidump for this platform"); | _kvm_err(kd, kd->program, "not a minidump for this platform"); | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| vmst->hdr.version = _kvm32toh(kd, vmst->hdr.version); | vmst->hdr.version = _kvm32toh(kd, vmst->hdr.version); | ||||
| if (vmst->hdr.version != MINIDUMP_VERSION) { | if (vmst->hdr.version != MINIDUMP_VERSION && vmst->hdr.version != 1) { | ||||
| _kvm_err(kd, kd->program, "wrong minidump version. " | _kvm_err(kd, kd->program, "wrong minidump version. " | ||||
| "Expected %d got %d", MINIDUMP_VERSION, vmst->hdr.version); | "Expected %d got %d", MINIDUMP_VERSION, vmst->hdr.version); | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| vmst->hdr.msgbufsize = _kvm32toh(kd, vmst->hdr.msgbufsize); | vmst->hdr.msgbufsize = _kvm32toh(kd, vmst->hdr.msgbufsize); | ||||
| vmst->hdr.bitmapsize = _kvm32toh(kd, vmst->hdr.bitmapsize); | vmst->hdr.bitmapsize = _kvm32toh(kd, vmst->hdr.bitmapsize); | ||||
| vmst->hdr.ptesize = _kvm32toh(kd, vmst->hdr.ptesize); | vmst->hdr.ptesize = _kvm32toh(kd, vmst->hdr.ptesize); | ||||
| vmst->hdr.kernbase = _kvm32toh(kd, vmst->hdr.kernbase); | vmst->hdr.kernbase = _kvm32toh(kd, vmst->hdr.kernbase); | ||||
| vmst->hdr.arch = _kvm32toh(kd, vmst->hdr.arch); | vmst->hdr.arch = _kvm32toh(kd, vmst->hdr.arch); | ||||
| vmst->hdr.mmuformat = _kvm32toh(kd, vmst->hdr.mmuformat); | vmst->hdr.mmuformat = _kvm32toh(kd, vmst->hdr.mmuformat); | ||||
| if (vmst->hdr.mmuformat == MINIDUMP_MMU_FORMAT_UNKNOWN) { | if (vmst->hdr.mmuformat == MINIDUMP_MMU_FORMAT_UNKNOWN) { | ||||
| /* This is a safe default as 1K pages are not used. */ | /* This is a safe default as 1K pages are not used. */ | ||||
| vmst->hdr.mmuformat = MINIDUMP_MMU_FORMAT_V6; | vmst->hdr.mmuformat = MINIDUMP_MMU_FORMAT_V6; | ||||
| } | } | ||||
| vmst->hdr.dumpavailsize = vmst->hdr.version == MINIDUMP_VERSION ? | |||||
| _kvm32toh(kd, vmst->hdr.dumpavailsize) : 0; | |||||
| /* Skip header and msgbuf */ | /* Skip header and msgbuf */ | ||||
| off = ARM_PAGE_SIZE + arm_round_page(vmst->hdr.msgbufsize); | dump_avail_off = ARM_PAGE_SIZE + arm_round_page(vmst->hdr.msgbufsize); | ||||
| /* Skip dump_avail */ | |||||
| off = dump_avail_off + arm_round_page(vmst->hdr.dumpavailsize); | |||||
| sparse_off = off + arm_round_page(vmst->hdr.bitmapsize) + | sparse_off = off + arm_round_page(vmst->hdr.bitmapsize) + | ||||
| arm_round_page(vmst->hdr.ptesize); | arm_round_page(vmst->hdr.ptesize); | ||||
| if (_kvm_pt_init(kd, vmst->hdr.bitmapsize, off, sparse_off, | if (_kvm_pt_init(kd, vmst->hdr.dumpavailsize, dump_avail_off, | ||||
| ARM_PAGE_SIZE, sizeof(uint32_t)) == -1) { | vmst->hdr.bitmapsize, off, sparse_off, ARM_PAGE_SIZE, | ||||
| sizeof(uint32_t)) == -1) { | |||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| off += arm_round_page(vmst->hdr.bitmapsize); | off += arm_round_page(vmst->hdr.bitmapsize); | ||||
| if (_kvm_pmap_init(kd, vmst->hdr.ptesize, off) == -1) { | if (_kvm_pmap_init(kd, vmst->hdr.ptesize, off) == -1) { | ||||
| return (-1); | return (-1); | ||||
| } | } | ||||
| off += arm_round_page(vmst->hdr.ptesize); | off += arm_round_page(vmst->hdr.ptesize); | ||||
| ▲ Show 20 Lines • Show All 132 Lines • Show Last 20 Lines | |||||