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Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x32 support for x86-64 from Ingo Molnar:
 "This tree introduces the X32 binary format and execution mode for x86:
  32-bit data space binaries using 64-bit instructions and 64-bit kernel
  syscalls.

  This allows applications whose working set fits into a 32 bits address
  space to make use of 64-bit instructions while using a 32-bit address
  space with shorter pointers, more compressed data structures, etc."

Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c}

* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  x32: Fix alignment fail in struct compat_siginfo
  x32: Fix stupid ia32/x32 inversion in the siginfo format
  x32: Add ptrace for x32
  x32: Switch to a 64-bit clock_t
  x32: Provide separate is_ia32_task() and is_x32_task() predicates
  x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls
  x86/x32: Fix the binutils auto-detect
  x32: Warn and disable rather than error if binutils too old
  x32: Only clear TIF_X32 flag once
  x32: Make sure TS_COMPAT is cleared for x32 tasks
  fs: Remove missed ->fds_bits from cessation use of fd_set structs internally
  fs: Fix close_on_exec pointer in alloc_fdtable
  x32: Drop non-__vdso weak symbols from the x32 VDSO
  x32: Fix coding style violations in the x32 VDSO code
  x32: Add x32 VDSO support
  x32: Allow x32 to be configured
  x32: If configured, add x32 system calls to system call tables
  x32: Handle process creation
  x32: Signal-related system calls
  x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h>
  ...
This commit is contained in:
Linus Torvalds 2012-03-29 18:12:23 -07:00
commit a591afc01d
91 changed files with 1561 additions and 2180 deletions
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26
fs/compat.c
View file

@ -1170,10 +1170,9 @@ compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec,
}
asmlinkage ssize_t
compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, u32 pos_low, u32 pos_high)
compat_sys_preadv64(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, loff_t pos)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
struct file *file;
int fput_needed;
ssize_t ret;
@ -1190,6 +1189,14 @@ compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
return ret;
}
asmlinkage ssize_t
compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, u32 pos_low, u32 pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_preadv64(fd, vec, vlen, pos);
}
static size_t compat_writev(struct file *file,
const struct compat_iovec __user *vec,
unsigned long vlen, loff_t *pos)
@ -1229,10 +1236,9 @@ compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
}
asmlinkage ssize_t
compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, u32 pos_low, u32 pos_high)
compat_sys_pwritev64(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, loff_t pos)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
struct file *file;
int fput_needed;
ssize_t ret;
@ -1249,6 +1255,14 @@ compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
return ret;
}
asmlinkage ssize_t
compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
unsigned long vlen, u32 pos_low, u32 pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_pwritev64(fd, vec, vlen, pos);
}
asmlinkage long
compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32,
unsigned int nr_segs, unsigned int flags)