elf coredump: replace ELF_CORE_EXTRA_* macros by functions
[linux-2.6.git] / arch / ia64 / kernel / elfcore.c
1 #include <linux/elf.h>
2 #include <linux/coredump.h>
3 #include <linux/fs.h>
4 #include <linux/mm.h>
5
6 #include <asm/elf.h>
7
8
9 Elf64_Half elf_core_extra_phdrs(void)
10 {
11         return GATE_EHDR->e_phnum;
12 }
13
14 int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
15                                unsigned long limit)
16 {
17         const struct elf_phdr *const gate_phdrs =
18                 (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
19         int i;
20         Elf64_Off ofs = 0;
21
22         for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
23                 struct elf_phdr phdr = gate_phdrs[i];
24
25                 if (phdr.p_type == PT_LOAD) {
26                         phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);
27                         phdr.p_filesz = phdr.p_memsz;
28                         if (ofs == 0) {
29                                 ofs = phdr.p_offset = offset;
30                                 offset += phdr.p_filesz;
31                         } else {
32                                 phdr.p_offset = ofs;
33                         }
34                 } else {
35                         phdr.p_offset += ofs;
36                 }
37                 phdr.p_paddr = 0; /* match other core phdrs */
38                 *size += sizeof(phdr);
39                 if (*size > limit || !dump_write(file, &phdr, sizeof(phdr)))
40                         return 0;
41         }
42         return 1;
43 }
44
45 int elf_core_write_extra_data(struct file *file, size_t *size,
46                               unsigned long limit)
47 {
48         const struct elf_phdr *const gate_phdrs =
49                 (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
50         int i;
51
52         for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
53                 if (gate_phdrs[i].p_type == PT_LOAD) {
54                         void *addr = (void *)gate_phdrs[i].p_vaddr;
55                         size_t memsz = PAGE_ALIGN(gate_phdrs[i].p_memsz);
56
57                         *size += memsz;
58                         if (*size > limit || !dump_write(file, addr, memsz))
59                                 return 0;
60                         break;
61                 }
62         }
63         return 1;
64 }