C++ (Cpp) kzalloc_panic 예제들

예제 #1

파일: crash_dump.c 프로젝트: romanbb/android_kernel_lge_d851

static void s390_elf_corehdr_create(char **elfcorebuf, size_t *elfcorebuf_sz)
{
	Elf64_Phdr *phdr_notes, *phdr_loads;
	int mem_chunk_cnt;
	void *ptr, *hdr;
	u32 alloc_size;
	u64 hdr_off;

	mem_chunk_cnt = get_mem_chunk_cnt();

	alloc_size = 0x1000 + get_cpu_cnt() * 0x300 +
		mem_chunk_cnt * sizeof(Elf64_Phdr);
	hdr = kzalloc_panic(alloc_size);
	/*                 */
	ptr = ehdr_init(hdr, mem_chunk_cnt);
	/*                      */
	phdr_notes = ptr;
	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr));
	phdr_loads = ptr;
	ptr = PTR_ADD(ptr, sizeof(Elf64_Phdr) * mem_chunk_cnt);
	/*            */
	hdr_off = PTR_DIFF(ptr, hdr);
	ptr = notes_init(phdr_notes, ptr, ((unsigned long) hdr) + hdr_off);
	/*            */
	hdr_off = PTR_DIFF(ptr, hdr);
	loads_init(phdr_loads, ((unsigned long) hdr) + hdr_off);
	*elfcorebuf_sz = hdr_off;
	*elfcorebuf = (void *) relocate((unsigned long) hdr);
	BUG_ON(*elfcorebuf_sz > alloc_size);
}

예제 #2

파일: crash_dump.c 프로젝트: romanbb/android_kernel_lge_d851

static struct mem_chunk *get_memory_layout(void)
{
	struct mem_chunk *chunk_array;

	chunk_array = kzalloc_panic(MEMORY_CHUNKS * sizeof(struct mem_chunk));
	detect_memory_layout(chunk_array);
	create_mem_hole(chunk_array, OLDMEM_BASE, OLDMEM_SIZE, CHUNK_CRASHK);
	return chunk_array;
}

예제 #3

파일: crash_dump.c 프로젝트: romanbb/android_kernel_lge_d851

static void *get_vmcoreinfo_old(unsigned long *size)
{
	char nt_name[11], *vmcoreinfo;
	Elf64_Nhdr note;
	void *addr;

	if (copy_from_oldmem(&addr, &S390_lowcore.vmcore_info, sizeof(addr)))
		return NULL;
	memset(nt_name, 0, sizeof(nt_name));
	if (copy_from_oldmem(&note, addr, sizeof(note)))
		return NULL;
	if (copy_from_oldmem(nt_name, addr + sizeof(note), sizeof(nt_name) - 1))
		return NULL;
	if (strcmp(nt_name, "VMCOREINFO") != 0)
		return NULL;
	vmcoreinfo = kzalloc_panic(note.n_descsz);
	if (copy_from_oldmem(vmcoreinfo, addr + 24, note.n_descsz))
		return NULL;
	*size = note.n_descsz;
	return vmcoreinfo;
}

예제 #4

파일: crash_dump.c 프로젝트: 08opt/linux

/*
 * Initialize vmcoreinfo note (new kernel)
 */
static void *nt_vmcoreinfo(void *ptr)
{
	char nt_name[11], *vmcoreinfo;
	Elf64_Nhdr note;
	void *addr;

	if (copy_from_oldmem(&addr, &S390_lowcore.vmcore_info, sizeof(addr)))
		return ptr;
	memset(nt_name, 0, sizeof(nt_name));
	if (copy_from_oldmem(&note, addr, sizeof(note)))
		return ptr;
	if (copy_from_oldmem(nt_name, addr + sizeof(note), sizeof(nt_name) - 1))
		return ptr;
	if (strcmp(nt_name, "VMCOREINFO") != 0)
		return ptr;
	vmcoreinfo = kzalloc_panic(note.n_descsz + 1);
	if (copy_from_oldmem(vmcoreinfo, addr + 24, note.n_descsz))
		return ptr;
	vmcoreinfo[note.n_descsz + 1] = 0;
	return nt_init(ptr, 0, vmcoreinfo, note.n_descsz, "VMCOREINFO");
}