From:Suzuki K. Poulose <suz...@in.ibm.com>
elf_core_copy_extra_phdrs() for UML. Adapted from elf_core_write_extra_phdrs()
Signed-off-by: Suzuki K. Poulose <suz...@in.ibm.com>
---
arch/x86/um/elfcore.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/x86/um/elfcore.c b/arch/x86/um/elfcore.c
index 6bb49b6..edecfce 100644
--- a/arch/x86/um/elfcore.c
+++ b/arch/x86/um/elfcore.c
@@ -41,6 +41,38 @@ int elf_core_write_extra_phdrs(struct file *file, loff_t
offset, size_t *size,
return 1;
}
+int elf_core_copy_extra_phdrs(char *bufp, loff_t offset, size_t *size,
+ unsigned long limit)
+{
+ if (vsyscall_ehdr) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *) vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr +
ehdrp->e_phoff);
+ struct elf_phdr *phdr = (struct elf_phdr *)bufp;
+ int i;
+ Elf32_Off ofs = 0;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i) {
+ *size += sizeof(*phdr);
+ if (*size > limit)
+ return 0;
+
+ *phdr = phdrp[i];
+
+ if (phdr.p_type == PT_LOAD) {
+ ofs = phdr.p_offset = offset;
+ offset += phdr.p_filesz;
+ } else {
+ phdr.p_offset += ofs;
+ }
+ phdr.p_paddr = 0; /* match other core phdrs */
+ phdr++;
+ }
+ }
+ return 1;
+}
+
int elf_core_write_extra_data(struct file *file, size_t *size,
unsigned long limit)
{
--
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