[Qemu-commits] [qemu/qemu] 734a65: linux-user/flatload.c: Fix setting of image_info::...

[Richard Henderson]

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 734a659ad264ac080457167e845ffabbaaa66d0e
      
https://github.com/qemu/qemu/commit/734a659ad264ac080457167e845ffabbaaa66d0e
  Author: Peter Maydell <peter.maydell@linaro.org>
  Date:   2022-07-28 (Thu, 28 Jul 2022)

  Changed paths:
    M linux-user/flatload.c

  Log Message:
  -----------
  linux-user/flatload.c: Fix setting of image_info::end_code

The flatload loader sets the end_code field in the image_info struct
incorrectly, due to a typo.

This is a very long-standing bug (dating all the way back to when
the bFLT loader was added in 2006), but has gone unnoticed because
(a) most people don't use bFLT binaries
(b) we don't actually do anything with the end_code field, except
    print it in debugging traces and pass it to TCG plugins

Fix the typo.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1119
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220728151406.2262862-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>


  Commit: f71fa4e3bb22f534ee668e7f4bdf64e59c193afd
      
https://github.com/qemu/qemu/commit/f71fa4e3bb22f534ee668e7f4bdf64e59c193afd
  Author: Ilya Leoshkevich <iii@linux.ibm.com>
  Date:   2022-07-29 (Fri, 29 Jul 2022)

  Changed paths:
    M linux-user/mmap.c

  Log Message:
  -----------
  linux-user: Do not treat madvise()'s advice as a bitmask

Advice is enum, not flags. Doing (advice & MADV_DONTNEED) also matches
e.g. MADV_MERGEABLE.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220725134100.128035-1-iii@linux.ibm.com>
Fixes: 892a4f6a750a ("linux-user: Add partial support for MADV_DONTNEED")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>


  Commit: 5b63de6b54add51822db3c89325c6fc05534a54c
      
https://github.com/qemu/qemu/commit/5b63de6b54add51822db3c89325c6fc05534a54c
  Author: Rainer Müller <raimue@codingfarm.de>
  Date:   2022-08-02 (Tue, 02 Aug 2022)

  Changed paths:
    M linux-user/syscall.c

  Log Message:
  -----------
  linux-user: Use memfd for open syscall emulation

For certain paths in /proc, the open syscall is intercepted and the
returned file descriptor points to a temporary file with emulated
contents.

If TMPDIR is not accessible or writable for the current user (for
example in a read-only mounted chroot or container) tools such as ps
from procps may fail unexpectedly. Trying to read one of these paths
such as /proc/self/stat would return an error such as ENOENT or EROFS.

To relax the requirement on a writable TMPDIR, use memfd_create()
instead to create an anonymous file and return its file descriptor.

Signed-off-by: Rainer Müller <raimue@codingfarm.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220729154951.76268-1-raimue@codingfarm.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>


  Commit: 2480f3bbd03814b0651a1f74959f5c6631ee5819
      
https://github.com/qemu/qemu/commit/2480f3bbd03814b0651a1f74959f5c6631ee5819
  Author: Richard Henderson <richard.henderson@linaro.org>
  Date:   2022-08-03 (Wed, 03 Aug 2022)

  Changed paths:
    M linux-user/flatload.c
    M linux-user/mmap.c
    M linux-user/syscall.c

  Log Message:
  -----------
  Merge tag 'linux-user-for-7.1-pull-request' of 
https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20220803

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* tag 'linux-user-for-7.1-pull-request' of 
https://gitlab.com/laurent_vivier/qemu:
  linux-user: Use memfd for open syscall emulation
  linux-user: Do not treat madvise()'s advice as a bitmask
  linux-user/flatload.c: Fix setting of image_info::end_code

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>


Compare: https://github.com/qemu/qemu/compare/d2656dd57775...2480f3bbd038