#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/user.h>
-#include <linux/a.out.h>
#include <linux/capability.h>
#include <linux/elf.h>
#include <linux/elfcore.h>
#include <asm/uaccess.h>
#include <asm/io.h>
+#define CORE_STR "CORE"
+
+#ifndef ELF_CORE_EFLAGS
+#define ELF_CORE_EFLAGS 0
+#endif
+
+static struct proc_dir_entry *proc_root_kcore;
static int open_kcore(struct inode * inode, struct file * filp)
{
static ssize_t read_kcore(struct file *, char __user *, size_t, loff_t *);
-const struct file_operations proc_kcore_operations = {
+static const struct file_operations proc_kcore_operations = {
.read = read_kcore,
.open = open_kcore,
};
}
*elf_buflen = sizeof(struct elfhdr) +
(*nphdr + 2)*sizeof(struct elf_phdr) +
- 3 * (sizeof(struct elf_note) + 4) +
- sizeof(struct elf_prstatus) +
- sizeof(struct elf_prpsinfo) +
- sizeof(struct task_struct);
+ 3 * ((sizeof(struct elf_note)) +
+ roundup(sizeof(CORE_STR), 4)) +
+ roundup(sizeof(struct elf_prstatus), 4) +
+ roundup(sizeof(struct elf_prpsinfo), 4) +
+ roundup(sizeof(struct task_struct), 4);
*elf_buflen = PAGE_ALIGN(*elf_buflen);
return size + *elf_buflen;
}
int sz;
sz = sizeof(struct elf_note);
- sz += roundup(strlen(en->name), 4);
+ sz += roundup((strlen(en->name) + 1), 4);
sz += roundup(en->datasz, 4);
return sz;
#define DUMP_WRITE(addr,nr) do { memcpy(bufp,addr,nr); bufp += nr; } while(0)
- en.n_namesz = strlen(men->name);
+ en.n_namesz = strlen(men->name) + 1;
en.n_descsz = men->datasz;
en.n_type = men->type;
elf->e_entry = 0;
elf->e_phoff = sizeof(struct elfhdr);
elf->e_shoff = 0;
-#if defined(CONFIG_H8300)
- elf->e_flags = ELF_FLAGS;
-#else
- elf->e_flags = 0;
-#endif
+ elf->e_flags = ELF_CORE_EFLAGS;
elf->e_ehsize = sizeof(struct elfhdr);
elf->e_phentsize= sizeof(struct elf_phdr);
elf->e_phnum = nphdr;
nhdr->p_offset = offset;
/* set up the process status */
- notes[0].name = "CORE";
+ notes[0].name = CORE_STR;
notes[0].type = NT_PRSTATUS;
notes[0].datasz = sizeof(struct elf_prstatus);
notes[0].data = &prstatus;
bufp = storenote(¬es[0], bufp);
/* set up the process info */
- notes[1].name = "CORE";
+ notes[1].name = CORE_STR;
notes[1].type = NT_PRPSINFO;
notes[1].datasz = sizeof(struct elf_prpsinfo);
notes[1].data = &prpsinfo;
bufp = storenote(¬es[1], bufp);
/* set up the task structure */
- notes[2].name = "CORE";
+ notes[2].name = CORE_STR;
notes[2].type = NT_TASKSTRUCT;
notes[2].datasz = sizeof(struct task_struct);
notes[2].data = current;
tsz = elf_buflen - *fpos;
if (buflen < tsz)
tsz = buflen;
- elf_buf = kmalloc(elf_buflen, GFP_ATOMIC);
+ elf_buf = kzalloc(elf_buflen, GFP_ATOMIC);
if (!elf_buf) {
read_unlock(&kclist_lock);
return -ENOMEM;
}
- memset(elf_buf, 0, elf_buflen);
elf_kcore_store_hdr(elf_buf, nphdr, elf_buflen);
read_unlock(&kclist_lock);
if (copy_to_user(buffer, elf_buf + *fpos, tsz)) {
if (m == NULL) {
if (clear_user(buffer, tsz))
return -EFAULT;
- } else if ((start >= VMALLOC_START) && (start < VMALLOC_END)) {
+ } else if (is_vmalloc_addr((void *)start)) {
char * elf_buf;
struct vm_struct *m;
unsigned long curstart = start;
unsigned long cursize = tsz;
- elf_buf = kmalloc(tsz, GFP_KERNEL);
+ elf_buf = kzalloc(tsz, GFP_KERNEL);
if (!elf_buf)
return -ENOMEM;
- memset(elf_buf, 0, tsz);
read_lock(&vmlist_lock);
for (m=vmlist; m && cursize; m=m->next) {
return acc;
}
+
+static int __init proc_kcore_init(void)
+{
+ proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
+ if (proc_root_kcore)
+ proc_root_kcore->size =
+ (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
+ return 0;
+}
+module_init(proc_kcore_init);