[Qemu-devel] [Bug 1701974] [NEW] pwrite does not work right under qemu-sh4

[Qemu-devel] [Bug 1701974] [NEW] pwrite does not work right under qemu-sh4

[Bruno Haible]

Public bug reported:

The pwrite system call has no effect when writing to a non-zero file
position, in a program running under qemu-sh4 (version 2.9.0).

How to reproduce:
- Compile the program:
  sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
- Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
- ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

Expected output:
buf = 01W3456789

Actual output:
buf = 0123456789
test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
qemu: uncaught target signal 6 (Aborted) - core dumped

** Affects: qemu
     Importance: Undecided
         Status: New

** Attachment added: "source code of test program"
   https://bugs.launchpad.net/bugs/1701974/+attachment/4908131/+files/test-pwrite.c

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https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  New

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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[Qemu-devel] [Bug 1701974] Re: pwrite does not work right under qemu-sh4

[Bruno Haible]

** Attachment added: "Statically linked compiled test program"
   https://bugs.launchpad.net/qemu/+bug/1701974/+attachment/4908132/+files/test-pwrite

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https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  New

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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[Qemu-devel] [Bug 1701974] Re: pwrite does not work right under qemu-sh4

[Bruno Haible]

In case it matters: My host platform is Linux/x86_64.

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https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  New

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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[Qemu-devel] [Bug 1701974] Re: pwrite does not work right under qemu-sh4

[Bruno Haible]

The behaviour in qemu-2.10 is the same as in qemu-2.9.

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https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  New

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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[Qemu-devel] [Bug 1701974] Re: pwrite does not work right under qemu-sh4

[John Paul Adrian Glaubitz]

This might be related to this fix:

>
https://git.qemu.org/?p=qemu.git;a=commit;h=8bf8e9df4a7d82c7a47cc961c9cdee1615595de0

FWIW, if you're interested in sh4, please join #debian-ports on OFTC and
subscribe to the debian-superh mailing list. We're doing lots of sh4
development and testing QEMU in Debian.

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You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  New

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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[Qemu-devel] [Bug 1701974] Re: pwrite does not work right under qemu-sh4

[Bruno Haible]

Works fine in qemu-2.11:
$ ~/inst-qemu/2.11.0/bin/qemu-sh4 test-pwrite
buf = 01W3456789


** Changed in: qemu
       Status: New => Fix Released

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devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1701974

Title:
  pwrite does not work right under qemu-sh4

Status in QEMU:
  Fix Released

Bug description:
  The pwrite system call has no effect when writing to a non-zero file
  position, in a program running under qemu-sh4 (version 2.9.0).

  How to reproduce:
  - Compile the program:
    sh4-linux-gnu-gcc-5 -O -Wall -static -o test-pwrite test-pwrite.c
  - Set environment variable for using qemu-sh4 (actually not needed, since the program is statically linked here).
  - ~/inst-qemu/2.9.0/bin/qemu-sh4 test-pwrite

  Expected output:
  buf = 01W3456789

  Actual output:
  buf = 0123456789
  test-pwrite.c:56: assertion 'strcmp ("01W3456789",buf) == 0' failed
  qemu: uncaught target signal 6 (Aborted) - core dumped

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