| #
0592f8f8 |
| 01-Aug-2024 |
Andre Przywara <andre.przywara@arm.com> |
remove wordsize.h inclusion (for musl compatibility)
The wordsize.h header file and the __WORDSIZE definition do not seem
to be universal, the musl libc for instance has the definition in a
differen
remove wordsize.h inclusion (for musl compatibility)
The wordsize.h header file and the __WORDSIZE definition do not seem
to be universal, the musl libc for instance has the definition in a
different header file. This breaks compilation of kvmtool against musl.
The two leading underscores suggest a compiler-internal symbol anyway, so
let's just remove that particular macro usage entirely, and replace it
with the number we really want: the size of a "long" type.
Reported-by: J. Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20240801111054.818765-1-andre.przywara@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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|
| #
0febaae0 |
| 12-Apr-2022 |
Alexandru Elisei <alexandru.elisei@arm.com> |
Add cpumask functions
Add a handful of cpumask functions, some of which will be used when
dealing with different PMUs on heterogeneous systems.
The maximum number of CPUs in a system, NR_CPUS, whic
Add cpumask functions
Add a handful of cpumask functions, some of which will be used when
dealing with different PMUs on heterogeneous systems.
The maximum number of CPUs in a system, NR_CPUS, which dictates the size of
the cpumask, has been taken from the Kconfig file for each architecture,
from Linux version 5.16.
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20220412133231.35355-9-alexandru.elisei@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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|
| #
d9b64eb6 |
| 12-Apr-2022 |
Alexandru Elisei <alexandru.elisei@arm.com> |
linux/bitops.h: Include wordsize.h to provide the __WORDSIZE define
Trying to build a source file which included bitops.h, but didn't also
bring in the definition for __WORDSIZE (by including limits
linux/bitops.h: Include wordsize.h to provide the __WORDSIZE define
Trying to build a source file which included bitops.h, but didn't also
bring in the definition for __WORDSIZE (by including limits.h, for example)
would result in the following error:
include/linux/bitops.h:8:23: error: ‘__WORDSIZE’ undeclared (first use in this function)
8 | #define BITS_PER_LONG __WORDSIZE
| ^~~~~~~~~~
The symbol is defined in the bits/wordsize.h header file, include it.
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20220412133231.35355-3-alexandru.elisei@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
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| #
2caa836d |
| 05-May-2011 |
Ingo Molnar <mingo@elte.hu> |
kvm tools: Fix 32-bit build of the asm/system.h include
Provide wrappers and other environmental dependencies that the
asm/system.h header file from hell needs to build fine in user-space.
Sidenote
kvm tools: Fix 32-bit build of the asm/system.h include
Provide wrappers and other environmental dependencies that the
asm/system.h header file from hell needs to build fine in user-space.
Sidenote: right now alternative() defaults to the compatible, slightly
slower barrier instructions that work on all x86 systems.
If this ever shows up in profiles then kvm could provide an alternatives
patching machinery as well. Right now those instructions are emitted
into special sections and then discarded by the linker harmlessly.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
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