Am 12.06.2016 um 22:59 schrieb Vegard Nossum:
> On 12 June 2016 at 22:11, Richard Weinberger
> <richard.weinber...@gmail.com> wrote:
>>> I wonder why setup_env_path() ends up calling the kernel's snprintf(),
>>> I thought that it would be using the glibc snprintf() at this point?
>>
>> That early you cannot use current() nor any other core kernel stuff
>> since the kernel has not started so far.
>> So, the current thread info struct points to garbage.
>
> Yes, I know. I think setup_env_path() should call the libc snprintf
> rather than the kernel one, can you explain how to do that properly?
Currently UML sets up nasty maps for known namespaces clashes.
i.e.
KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \
$(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
-Din6addr_loopback=kernel_in6addr_loopback \
-Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
A much better approach would be having a real linker scope.
Some time ago I posted some thoughts on that:
https://lkml.org/lkml/2015/11/19/758
Due to -ENOTIME this never materialized, though. ;-(
Thanks,
//richard
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