mirror of
https://git.tartarus.org/simon/putty.git
synced 2025-01-10 09:58:01 +00:00
3396c97da9
Now that the new CMake build system is encouraging us to lay out the code like a set of libraries, it seems like a good idea to make them look more _like_ libraries, by putting things into separate modules as far as possible. This fixes several previous annoyances in which you had to link against some object in order to get a function you needed, but that object also contained other functions you didn't need which included link-time symbol references you didn't want to have to deal with. The usual offender was subsidiary supporting programs including misc.c for some innocuous function and then finding they had to deal with the requirements of buildinfo(). This big reorganisation introduces three new subdirectories called 'utils', one at the top level and one in each platform subdir. In each case, the directory contains basically the same files that were previously placed in the 'utils' build-time library, except that the ones that were extremely miscellaneous (misc.c, utils.c, uxmisc.c, winmisc.c, winmiscs.c, winutils.c) have been split up into much smaller pieces.
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
/*
|
|
* Windows implementation of the OS query functions that detect Arm
|
|
* architecture extensions.
|
|
*/
|
|
|
|
#include "putty.h"
|
|
|
|
#if !(defined _M_ARM || defined _M_ARM64)
|
|
/*
|
|
* For non-Arm, stub out these functions. This module shouldn't be
|
|
* _called_ in that situation anyway, but it will still be compiled
|
|
* (because that's easier than getting CMake to identify the
|
|
* architecture in all cases).
|
|
*/
|
|
#define IsProcessorFeaturePresent(...) false
|
|
#endif
|
|
|
|
bool platform_aes_hw_available(void)
|
|
{
|
|
return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
|
|
}
|
|
|
|
bool platform_sha256_hw_available(void)
|
|
{
|
|
return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
|
|
}
|
|
|
|
bool platform_sha1_hw_available(void)
|
|
{
|
|
return IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE);
|
|
}
|
|
|
|
bool platform_sha512_hw_available(void)
|
|
{
|
|
/* As of 2020-12-24, as far as I can tell from docs.microsoft.com,
|
|
* Windows on Arm does not yet provide a PF_ARM_V8_* flag for the
|
|
* SHA-512 architecture extension. */
|
|
return false;
|
|
}
|