xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Browse Source 
Pull m68nommu updates from Greg Ungerer:
 "A series of cleanups for the FLAT format binary loader, binfmt_flat,
  from Christoph.

  The end goal is to support no-MMU on RISC-V, and the last patch
  enables that"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  riscv: add binfmt_flat support
  binfmt_flat: don't offset the data start
  binfmt_flat: move the MAX_SHARED_LIBS definition to binfmt_flat.c
  binfmt_flat: remove the persistent argument from flat_get_addr_from_rp
  binfmt_flat: provide an asm-generic/flat.h
  binfmt_flat: make support for old format binaries optional
  binfmt_flat: add a ARCH_HAS_BINFMT_FLAT option
  binfmt_flat: add endianess annotations
  binfmt_flat: use fixed size type for the on-disk format
  binfmt_flat: consolidate two version of flat_v2_reloc_t
  binfmt_flat: remove the unused OLD_FLAT_FLAG_RAM definition
  binfmt_flat: remove the uapi <linux/flat.h> header
  binfmt_flat: replace flat_argvp_envp_on_stack with a Kconfig variable
  binfmt_flat: remove flat_old_ram_flag
  binfmt_flat: provide a default version of flat_get_relocate_addr
  binfmt_flat: remove flat_set_persistent
  binfmt_flat: remove flat_reloc_valid
This commit is contained in:
Linus Torvalds
2019-07-10 21:42:03 -07:00
parent d2b6b4c832 ad97f9df0f
commit 398364a35d
21 changed files with 145 additions and 187 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/include/asm/Kbuild
View File

@@ -5,6 +5,7 @@ generic-y += early_ioremap.h
generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h
generic-y += flat.h
generic-y += irq_regs.h
generic-y += kdebug.h
generic-y += local.h

37
arch/arm/include/asm/flat.h
View File

@@ -1,37 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* arch/arm/include/asm/flat.h -- uClinux flat-format executables
*/
#ifndef __ARM_FLAT_H__
#define __ARM_FLAT_H__
#include <linux/uaccess.h>
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
u32 *addr, u32 *persistent)
{
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
#else
return get_user(*addr, rp);
#endif
}
static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
{
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
#else
return put_user(addr, rp);
#endif
}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
#endif /* __ARM_FLAT_H__ */