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b15e7490a1
Treat %ll* formats the same as %l* formats when processing printfs from
the guest so that using e.g. %llx instead of %lx generates the expected
output. Ideally, unexpected formats would generate compile-time warnings
or errors, but it's not at all obvious how to actually accomplish that.
Alternatively, guest_vsnprintf() could assert on an unexpected format,
but since the vast majority of printfs are for failed guest asserts,
getting *something* printed is better than nothing.
E.g. before
==== Test Assertion Failure ====
x86_64/private_mem_conversions_test.c:265: mem[i] == 0
pid=4286 tid=4290 errno=4 - Interrupted system call
1 0x0000000000401c74: __test_mem_conversions at private_mem_conversions_test.c:336
2 0x00007f3aae6076da: ?? ??:0
3 0x00007f3aae32161e: ?? ??:0
Expected 0x0 at offset 0 (gpa 0x%lx), got 0x0
and after
==== Test Assertion Failure ====
x86_64/private_mem_conversions_test.c:265: mem[i] == 0
pid=5664 tid=5668 errno=4 - Interrupted system call
1 0x0000000000401c74: __test_mem_conversions at private_mem_conversions_test.c:336
2 0x00007fbe180076da: ?? ??:0
3 0x00007fbe17d2161e: ?? ??:0
Expected 0x0 at offset 0 (gpa 0x100000000), got 0xcc
Fixes:
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.