I've created a new patches for getdents bug
https://sourceware.org/bugzilla/show_bug.cgi?id=23960 and I can't
reproduce python permissions issue anymore. My mips image built with
qemu user works perfect.
** Bug watch added: Sourceware.org Bugzilla #23960
https://sourceware.org/bugzilla/show_bug
Sure, I will try to reproduce permissions issue and create a new issue
later. I will try to provide small patches too.
I've created a question on kernel bugzilla.
https://bugzilla.kernel.org/show_bug.cgi?id=206135 They should know that
applications wants much more than "tbl" provides.
** Bug watc
After applying my patch it seems like another issue was fixed: "emerge"
inside qemu has no permissions bug. Without that patch I was able to
reproduce "emerge" program can't apply any patch (permission denied). So
it looks like old hardcoded table has some wrong values that are not
compatible with
I've just written these generators in ruby, but it can be rewritten in
python, perl, etc.
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https://bugs.launchpad.net/bugs/1858461
Title:
Please refactor linux-user/mips/cpu_loop.c
St
** Patch added: "mips_syscall_generators.patch"
https://bugs.launchpad.net/qemu/+bug/1858461/+attachment/5318622/+files/mips_syscall_generators.patch
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Hello, thank you. I want to introduce another patch with syscalls
related generator. Please review it.
I think about the following development flow:
1. Kernel updates and maintains "tbl".
2. Qemu developer wants to implement new syscall (like clone3) in
"linux-user/syscall.c".
3. Developer clone
It is possible to do the following:
cd /usr/src/linux
make clean
make CC=clang
~/workspace/CastXML/build/bin/castxml -nostdinc -isystem
/usr/lib/clang/9.0.1/include -I./arch/x86/include
-I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi
-I./arch/x86/include/generated/uapi -I.
Unfortunately we can generate only very short table of syscalls using
this method. Most of the syscalls are missing from "dwo" files. =(
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Title:
I've found a reliable way to generate syscall arguments count table.
cd /usr/src/linux
make clean
make CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_SPLIT=y CONFIG_DEBUG_INFO_DWARF4=y
llvm-dwarfdump -debug-info --name ksys_getdents64 --show-children
--recurse-depth=1 fs/readdir.dwo
0x00013738: DW_TAG_su
** Patch added: "generated_mips_syscall_table.template.patch"
https://bugs.launchpad.net/qemu/+bug/1858461/+attachment/5318010/+files/generated_mips_syscall_table.template.patch
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http
Please do not use previous workaround in prod, it is bad, just proof of
concept.
It looks like nobody is maintaining syscall list. It is not possible to
trust it.
We have "arch/mips/kernel/syscalls/syscall_o32.tbl", we need to create
generator. Generator should provide maximum possible number of
Added workaround for now
** Patch added: "mips_nr_base patch"
https://bugs.launchpad.net/qemu/+bug/1858461/+attachment/5317949/+files/mips_nr_base.patch
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Public bug reported:
Hello. I am working with qemu on test images. I've added a new syscall
(436) to qemu but received ENOSYS from mips application.
Please open "linux-user/mips/cpu_loop.c". I've added at the end of
"mips_syscall_args" the following:
```
MIPS_SYS(sys_getdents64_x32, 3)
```
But
Public bug reported:
Please, add patch https://lists.gnu.org/archive/html/qemu-
devel/2011-09/msg03841.html to upstream. 2 years have passed and this
patch is not jet applied. Why? 99% GNU/Linux distribution uses qemu with
this patch. It is 100% needed.
** Affects: qemu
Importance: Undecided
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