/******************************************************************************
* Generic MIB initialisation.
*
* This is a hack, and should be replaced with SYSINITs
* at some point.
*/
void
sysctl_mib_init(void)
{
cputype = cpu_type();
cpusubtype = cpu_subtype();
cputhreadtype = cpu_threadtype();
#if defined(__i386__) || defined (__x86_64__)
cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
#else
#error Unsupported arch
#endif
/*
* Populate the optional portion of the hw.* MIB.
*
* XXX This could be broken out into parts of the code
* that actually directly relate to the functions in
* question.
*/
if (cputhreadtype != CPU_THREADTYPE_NONE) {
sysctl_register_oid(&sysctl__hw_cputhreadtype);
}
#if defined (__i386__) || defined (__x86_64__)
/* hw.cpufamily */
cpufamily = cpuid_cpufamily();
/* hw.cacheconfig */
cacheconfig[0] = ml_cpu_cache_sharing(0);
cacheconfig[1] = ml_cpu_cache_sharing(1);
cacheconfig[2] = ml_cpu_cache_sharing(2);
cacheconfig[3] = ml_cpu_cache_sharing(3);
cacheconfig[4] = 0;
/* hw.cachesize */
cachesize[0] = ml_cpu_cache_size(0);
cachesize[1] = ml_cpu_cache_size(1);
cachesize[2] = ml_cpu_cache_size(2);
cachesize[3] = ml_cpu_cache_size(3);
cachesize[4] = 0;
/* hw.packages */
packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
/ cpuid_info()->thread_count;
#else
#error unknown architecture
#endif /* !__i386__ && !__x86_64 && !__arm__ */
}
void
kdp_machine_hostinfo(
kdp_hostinfo_t *hostinfo
)
{
int i;
hostinfo->cpus_mask = 0;
for (i = 0; i < machine_info.max_cpus; i++) {
if (cpu_data_ptr[i] == NULL)
continue;
hostinfo->cpus_mask |= (1 << i);
}
hostinfo->cpu_type = cpu_type();
hostinfo->cpu_subtype = cpu_subtype();
}
int
kern_dump(void)
{
vm_map_t map;
unsigned int thread_count, segment_count;
unsigned int command_size = 0, header_size = 0, tstate_size = 0;
uint64_t hoffset = 0, foffset = 0, nfoffset = 0;
unsigned int max_header_size = 0;
vm_offset_t header, txstart;
vm_map_offset_t vmoffset;
struct mach_header_64 *mh64;
struct segment_command_64 *sc64;
mach_vm_size_t size = 0;
vm_prot_t prot = 0;
vm_prot_t maxprot = 0;
mythread_state_flavor_t flavors[MAX_TSTATE_FLAVORS];
vm_size_t nflavors;
vm_size_t i;
uint32_t nesting_depth = 0;
kern_return_t kret = 0;
struct vm_region_submap_info_64 vbr;
mach_msg_type_number_t vbrcount = 0;
tir_t tir1;
int error = 0;
int panic_error = 0;
map = kernel_map;
thread_count = 1;
segment_count = get_vmmap_entries(map);
printf("Kernel map has %d entries\n", segment_count);
nflavors = kdp_mynum_flavors;
bcopy((char *)thread_flavor_array,(char *) flavors,sizeof(thread_flavor_array));
for (i = 0; i < nflavors; i++)
tstate_size += (uint32_t)(sizeof(mythread_state_flavor_t) +
(flavors[i].count * sizeof(int)));
command_size = (uint32_t)((segment_count) *
sizeof(struct segment_command_64) +
thread_count * sizeof(struct thread_command) +
tstate_size * thread_count);
header_size = command_size + (uint32_t)sizeof(struct mach_header_64);
header = (vm_offset_t) command_buffer;
/*
* Set up Mach-O header for currently executing 32 bit kernel.
*/
printf ("Generated Mach-O header size was %d\n", header_size);
mh64 = (struct mach_header_64 *) header;
mh64->magic = MH_MAGIC_64;
mh64->cputype = cpu_type();
mh64->cpusubtype = cpu_subtype();
mh64->filetype = MH_CORE;
mh64->ncmds = segment_count + thread_count;
mh64->sizeofcmds = command_size;
mh64->flags = 0;
mh64->reserved = 0;
hoffset = sizeof(struct mach_header_64); /* offset into header */
foffset = (uint32_t)round_page(header_size); /* offset into file */
/* Padding */
if ((foffset - header_size) < (4*sizeof(struct segment_command_64))) {
foffset += (uint32_t)((4*sizeof(struct segment_command_64)) - (foffset-header_size));
}
max_header_size = (unsigned int)foffset;
vmoffset = vm_map_min(map);
/* Transmit the Mach-O MH_CORE header, and seek forward past the
* area reserved for the segment and thread commands
* to begin data transmission
*/
if ((panic_error = kdp_send_crashdump_pkt (KDP_SEEK, NULL, sizeof(nfoffset) , &nfoffset)) < 0) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
if ((panic_error = kdp_send_crashdump_data (KDP_DATA, NULL, sizeof(struct mach_header_64), (caddr_t) mh64) < 0)) {
printf ("kdp_send_crashdump_data failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
if ((panic_error = kdp_send_crashdump_pkt (KDP_SEEK, NULL, sizeof(foffset) , &foffset) < 0)) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
printf ("Transmitting kernel state, please wait: ");
while ((segment_count > 0) || (kret == KERN_SUCCESS)){
while (1) {
/*
* Get region information for next region.
*/
vbrcount = VM_REGION_SUBMAP_INFO_COUNT_64;
if((kret = mach_vm_region_recurse(map,
&vmoffset, &size, &nesting_depth,
(vm_region_recurse_info_t)&vbr,
&vbrcount)) != KERN_SUCCESS) {
break;
}
if(vbr.is_submap) {
nesting_depth++;
continue;
} else {
break;
}
}
if(kret != KERN_SUCCESS)
break;
prot = vbr.protection;
maxprot = vbr.max_protection;
/*
* Fill in segment command structure.
*/
if (hoffset > max_header_size)
break;
sc64 = (struct segment_command_64 *) (header);
sc64->cmd = LC_SEGMENT_64;
sc64->cmdsize = sizeof(struct segment_command_64);
sc64->segname[0] = 0;
sc64->vmaddr = vmoffset;
sc64->vmsize = size;
sc64->fileoff = foffset;
sc64->filesize = size;
sc64->maxprot = maxprot;
sc64->initprot = prot;
sc64->nsects = 0;
if ((panic_error = kdp_send_crashdump_pkt (KDP_SEEK, NULL, sizeof(hoffset) , &hoffset)) < 0) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
if ((panic_error = kdp_send_crashdump_data (KDP_DATA, NULL, sizeof(struct segment_command_64) , (caddr_t) sc64)) < 0) {
printf ("kdp_send_crashdump_data failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
/* Do not transmit memory tagged VM_MEMORY_IOKIT - instead,
* seek past that region on the server - this creates a
* hole in the file.
*/
if ((vbr.user_tag != VM_MEMORY_IOKIT)) {
if ((panic_error = kdp_send_crashdump_pkt (KDP_SEEK, NULL, sizeof(foffset) , &foffset)) < 0) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
txstart = vmoffset;
if ((panic_error = kdp_send_crashdump_data (KDP_DATA, NULL, (unsigned int)size, (caddr_t) txstart)) < 0) {
printf ("kdp_send_crashdump_data failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
}
hoffset += (unsigned int)sizeof(struct segment_command_64);
foffset += (unsigned int)size;
vmoffset += size;
segment_count--;
}
tir1.header = header;
tir1.hoffset = 0;
tir1.flavors = flavors;
tir1.tstate_size = tstate_size;
/* Now send out the LC_THREAD load command, with the thread information
* for the current activation.
* Note that the corefile can contain LC_SEGMENT commands with file
* offsets that point past the edge of the corefile, in the event that
* the last N VM regions were all I/O mapped or otherwise
* non-transferable memory, not followed by a normal VM region;
* i.e. there will be no hole that reaches to the end of the core file.
*/
kern_collectth_state (current_thread(), &tir1);
if ((panic_error = kdp_send_crashdump_pkt (KDP_SEEK, NULL, sizeof(hoffset) , &hoffset)) < 0) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
if ((panic_error = kdp_send_crashdump_data (KDP_DATA, NULL, tir1.hoffset , (caddr_t) header)) < 0) {
printf ("kdp_send_crashdump_data failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
/* last packet */
if ((panic_error = kdp_send_crashdump_pkt (KDP_EOF, NULL, 0, ((void *) 0))) < 0)
{
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
error = panic_error;
goto out;
}
out:
return (error);
}
/******************************************************************************
* Generic MIB initialisation.
*
* This is a hack, and should be replaced with SYSINITs
* at some point.
*/
void
sysctl_mib_init(void)
{
cputype = cpu_type();
cpusubtype = cpu_subtype();
cputhreadtype = cpu_threadtype();
#if defined(__i386__) || defined (__x86_64__)
cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
#elif defined(__arm__)
kprintf("sysctl_mib_init: NEED ARM DEFINES\n");
#else
#error Unsupported arch
#endif
/*
* Populate the optional portion of the hw.* MIB.
*
* XXX This could be broken out into parts of the code
* that actually directly relate to the functions in
* question.
*/
if (cputhreadtype != CPU_THREADTYPE_NONE) {
sysctl_register_oid(&sysctl__hw_cputhreadtype);
}
#if defined (__i386__) || defined (__x86_64__)
#define is_capability_set(k) (((_get_cpu_capabilities() & (k)) == (k)) ? 1 : 0)
mmx_flag = is_capability_set(kHasMMX);
sse_flag = is_capability_set(kHasSSE);
sse2_flag = is_capability_set(kHasSSE2);
sse3_flag = is_capability_set(kHasSSE3);
supplementalsse3_flag = is_capability_set(kHasSupplementalSSE3);
sse4_1_flag = is_capability_set(kHasSSE4_1);
sse4_2_flag = is_capability_set(kHasSSE4_2);
x86_64_flag = is_capability_set(k64Bit);
aes_flag = is_capability_set(kHasAES);
avx1_0_flag = is_capability_set(kHasAVX1_0);
rdrand_flag = is_capability_set(kHasRDRAND);
f16c_flag = is_capability_set(kHasF16C);
enfstrg_flag = is_capability_set(kHasENFSTRG);
/* hw.cpufamily */
cpufamily = cpuid_cpufamily();
/* hw.cacheconfig */
cacheconfig[0] = ml_cpu_cache_sharing(0);
cacheconfig[1] = ml_cpu_cache_sharing(1);
cacheconfig[2] = ml_cpu_cache_sharing(2);
cacheconfig[3] = ml_cpu_cache_sharing(3);
cacheconfig[4] = 0;
/* hw.cachesize */
cachesize[0] = ml_cpu_cache_size(0);
cachesize[1] = ml_cpu_cache_size(1);
cachesize[2] = ml_cpu_cache_size(2);
cachesize[3] = ml_cpu_cache_size(3);
cachesize[4] = 0;
/* hw.packages */
packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
/ cpuid_info()->thread_count;
#elif defined(__arm__)
kprintf("sysctl_mib_init: shortcircuiting to finish, reimplement\n");
#else
#error unknown architecture
#endif /* !__i386__ && !__x86_64 && !__arm__ */
}
