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Dengke Du 37be2ed7a9 ltp: fix mmap15 failed on qemumips64
Actually, this is not a bug, mmap15 only run on 64bit system.
On qemumips64, mmap15 return EINVAL, x86-64 and arm64 return
ENOMEM. This is because mips system check the addr that passed
to the syscall mmap15:

    https://github.com/torvalds/linux/blob/master/arch/mips/mm/mmap.c#L71

If the addr larger than (TASK_SIZE - page_size), mips think it is invalid.

(From OE-Core rev: cbc026227fb9bafe71665a673104272e191bdef9)

Signed-off-by: Dengke Du <dengke.du@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-09-13 07:42:28 +01:00
2018-09-13 07:42:28 +01:00
2018-02-24 10:31:45 +00:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
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