[PATCH 4/4] FRV: Fix linux/elf-fdpic.h [ver #2]

From: David Howells
Date: Mon Oct 15 2012 - 08:21:58 EST


It seems I accidentally switched the guard on linux/elf-fdpic.h from #ifdef
__KERNEL__ to #ifndef __KERNEL__ when attempting to expand the guarded region
to cover the elf_fdpic_params struct when doing the UAPI split - with the
result that the struct became unavailable to kernel code.

Move incorrectly guarded bits back to the kernelspace header.

Whilst we're at it, the __KERNEL__ guards can be deleted as they're no longer
necessary.

Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Reported-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Fengguang Wu <fengguang.wu@xxxxxxxxx>
cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
cc: uclinux-dev@xxxxxxxxxxx
---

include/linux/elf-fdpic.h | 51 ++++++++++++++++++++++++++++++++++++++++
include/uapi/linux/elf-fdpic.h | 42 ++-------------------------------
2 files changed, 54 insertions(+), 39 deletions(-)
create mode 100644 include/linux/elf-fdpic.h


diff --git a/include/linux/elf-fdpic.h b/include/linux/elf-fdpic.h
new file mode 100644
index 0000000..3864403
--- /dev/null
+++ b/include/linux/elf-fdpic.h
@@ -0,0 +1,51 @@
+/* FDPIC ELF load map
+ *
+ * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@xxxxxxxxxx)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_ELF_FDPIC_H
+#define _LINUX_ELF_FDPIC_H
+
+#include <uapi/linux/elf-fdpic.h>
+
+/*
+ * binfmt binary parameters structure
+ */
+struct elf_fdpic_params {
+ struct elfhdr hdr; /* ref copy of ELF header */
+ struct elf_phdr *phdrs; /* ref copy of PT_PHDR table */
+ struct elf32_fdpic_loadmap *loadmap; /* loadmap to be passed to userspace */
+ unsigned long elfhdr_addr; /* mapped ELF header user address */
+ unsigned long ph_addr; /* mapped PT_PHDR user address */
+ unsigned long map_addr; /* mapped loadmap user address */
+ unsigned long entry_addr; /* mapped entry user address */
+ unsigned long stack_size; /* stack size requested (PT_GNU_STACK) */
+ unsigned long dynamic_addr; /* mapped PT_DYNAMIC user address */
+ unsigned long load_addr; /* user address at which to map binary */
+ unsigned long flags;
+#define ELF_FDPIC_FLAG_ARRANGEMENT 0x0000000f /* PT_LOAD arrangement flags */
+#define ELF_FDPIC_FLAG_INDEPENDENT 0x00000000 /* PT_LOADs can be put anywhere */
+#define ELF_FDPIC_FLAG_HONOURVADDR 0x00000001 /* PT_LOAD.vaddr must be honoured */
+#define ELF_FDPIC_FLAG_CONSTDISP 0x00000002 /* PT_LOADs require constant
+ * displacement */
+#define ELF_FDPIC_FLAG_CONTIGUOUS 0x00000003 /* PT_LOADs should be contiguous */
+#define ELF_FDPIC_FLAG_EXEC_STACK 0x00000010 /* T if stack to be executable */
+#define ELF_FDPIC_FLAG_NOEXEC_STACK 0x00000020 /* T if stack not to be executable */
+#define ELF_FDPIC_FLAG_EXECUTABLE 0x00000040 /* T if this object is the executable */
+#define ELF_FDPIC_FLAG_PRESENT 0x80000000 /* T if this object is present */
+};
+
+#ifdef CONFIG_MMU
+extern void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params,
+ struct elf_fdpic_params *interp_params,
+ unsigned long *start_stack,
+ unsigned long *start_brk);
+#endif
+
+#endif /* _LINUX_ELF_FDPIC_H */
diff --git a/include/uapi/linux/elf-fdpic.h b/include/uapi/linux/elf-fdpic.h
index 1065078..3921e33 100644
--- a/include/uapi/linux/elf-fdpic.h
+++ b/include/uapi/linux/elf-fdpic.h
@@ -9,8 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/

-#ifndef _LINUX_ELF_FDPIC_H
-#define _LINUX_ELF_FDPIC_H
+#ifndef _UAPI_LINUX_ELF_FDPIC_H
+#define _UAPI_LINUX_ELF_FDPIC_H

#include <linux/elf.h>

@@ -31,40 +31,4 @@ struct elf32_fdpic_loadmap {

#define ELF32_FDPIC_LOADMAP_VERSION 0x0000

-#ifndef __KERNEL__
-/*
- * binfmt binary parameters structure
- */
-struct elf_fdpic_params {
- struct elfhdr hdr; /* ref copy of ELF header */
- struct elf_phdr *phdrs; /* ref copy of PT_PHDR table */
- struct elf32_fdpic_loadmap *loadmap; /* loadmap to be passed to userspace */
- unsigned long elfhdr_addr; /* mapped ELF header user address */
- unsigned long ph_addr; /* mapped PT_PHDR user address */
- unsigned long map_addr; /* mapped loadmap user address */
- unsigned long entry_addr; /* mapped entry user address */
- unsigned long stack_size; /* stack size requested (PT_GNU_STACK) */
- unsigned long dynamic_addr; /* mapped PT_DYNAMIC user address */
- unsigned long load_addr; /* user address at which to map binary */
- unsigned long flags;
-#define ELF_FDPIC_FLAG_ARRANGEMENT 0x0000000f /* PT_LOAD arrangement flags */
-#define ELF_FDPIC_FLAG_INDEPENDENT 0x00000000 /* PT_LOADs can be put anywhere */
-#define ELF_FDPIC_FLAG_HONOURVADDR 0x00000001 /* PT_LOAD.vaddr must be honoured */
-#define ELF_FDPIC_FLAG_CONSTDISP 0x00000002 /* PT_LOADs require constant
- * displacement */
-#define ELF_FDPIC_FLAG_CONTIGUOUS 0x00000003 /* PT_LOADs should be contiguous */
-#define ELF_FDPIC_FLAG_EXEC_STACK 0x00000010 /* T if stack to be executable */
-#define ELF_FDPIC_FLAG_NOEXEC_STACK 0x00000020 /* T if stack not to be executable */
-#define ELF_FDPIC_FLAG_EXECUTABLE 0x00000040 /* T if this object is the executable */
-#define ELF_FDPIC_FLAG_PRESENT 0x80000000 /* T if this object is present */
-};
-
-#ifdef CONFIG_MMU
-extern void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params,
- struct elf_fdpic_params *interp_params,
- unsigned long *start_stack,
- unsigned long *start_brk);
-#endif
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_ELF_FDPIC_H */
+#endif /* _UAPI_LINUX_ELF_FDPIC_H */

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