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4 Commits

Author SHA1 Message Date
Eric Biggers
2eeaa9282e lib/arm/cpu_features: recognize the crc32 feature 
If support for CRC32 instructions is detected, set
ARM_CPU_FEATURE_CRC32.  Also define
COMPILER_SUPPORTS_CRC32_TARGET_INTRINSICS when appropriate, and update
run_tests.sh to toggle the crc32 feature for testing.
 2020-10-10 23:03:50 -07:00
Eric Biggers
27d5a74f03 lib: add freestanding support 
Allow building libdeflate without linking to any libc functions by using
'make FREESTANDING=1'.  When using such a library build, the user will
need to call libdeflate_set_memory_allocator() before anything else,
since malloc() and free() will be unavailable.

[Folded in fix from Ingvar Stepanyan to use -nostdlib, and made
 freestanding_tests() check that no libs are linked to.]

Update https://github.com/ebiggers/libdeflate/issues/62
 2020-04-17 22:32:49 -07:00
Eric Biggers
a735fa830f lib, programs: remove all unnecessary 'extern' keywords 
'extern' on function declarations is redundant.
 2020-04-17 21:27:56 -07:00
Eric Biggers
2575ede5ff lib/arm: add ARM CPU feature detection (Linux only for now) 2018-02-18 23:03:26 -08:00