[PATCH] fix ia64 core dump code

From: Roland Turner <roland@redhat.com>

Fixes a BUG which occurs when an ia64 application tries to dump core.

include/asm-ia64/elf.h

@@ -218,19 +218,22 @@ do {										\
 #define ELF_CORE_EXTRA_PHDRS		(GATE_EHDR->e_phnum)
 #define ELF_CORE_WRITE_EXTRA_PHDRS						\
 do {										\
-	const struct elf_phdr *const vsyscall_phdrs =			      \
+	const struct elf_phdr *const gate_phdrs =			      \
 		(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);   \
 	int i;									\
-	Elf32_Off ofs = 0;						      \
+	Elf64_Off ofs = 0;						      \
 	for (i = 0; i < GATE_EHDR->e_phnum; ++i) {				\
-		struct elf_phdr phdr = vsyscall_phdrs[i];		      \
+		struct elf_phdr phdr = gate_phdrs[i];			      \
 		if (phdr.p_type == PT_LOAD) {					\
-			BUG_ON(ofs != 0);				      \
-			ofs = phdr.p_offset = offset;				\
 			phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);	      \
 			phdr.p_filesz = phdr.p_memsz;			      \
+			if (ofs == 0) {					      \
+				ofs = phdr.p_offset = offset;		      \
 			offset += phdr.p_filesz;				\
 		}							      \
+		else							      \
+				phdr.p_offset = ofs;			      \
+		}							      \
 		else							      \
 			phdr.p_offset += ofs;					\
 		phdr.p_paddr = 0; /* match other core phdrs */			\
@@ -239,13 +242,15 @@ do {										\
 } while (0)
 #define ELF_CORE_WRITE_EXTRA_DATA					\
 do {									\
-	const struct elf_phdr *const vsyscall_phdrs =			      \
+	const struct elf_phdr *const gate_phdrs =			      \
 		(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);   \
 	int i;								\
 	for (i = 0; i < GATE_EHDR->e_phnum; ++i) {			\
-		if (vsyscall_phdrs[i].p_type == PT_LOAD)		      \
-			DUMP_WRITE((void *) vsyscall_phdrs[i].p_vaddr,	      \
-				   PAGE_ALIGN(vsyscall_phdrs[i].p_memsz));    \
+		if (gate_phdrs[i].p_type == PT_LOAD) {			      \
+			DUMP_WRITE((void *) gate_phdrs[i].p_vaddr,	      \
+				   PAGE_ALIGN(gate_phdrs[i].p_memsz));	      \
+			break;						      \
+		}							      \
 	}								\
 } while (0)