coreboot/payloads/libpayload/libc
Julius Werner b506020076 commonlib: Change GCD function to always use 64 bits
It seems that we have some applications where we need to calculate a GCD
in 64 bits. Now, we could instantiate the algorithm multiple times for
different bit width combinations to be able to use the most efficient
one for each problem... but considering that the function usually only
gets called once per callsite per stage, and that software emulation of
64-bit division on 32-bit systems doesn't take *that* long either, we
would probably usually be paying more time loading the second instance
of the function than we save with faster divisions. So let's just make
things easy and always do it in 64-bit and then nobody has to spend time
thinking on which version to call.

Change-Id: I028361444c4048a0d76ba4f80c7334a9d9983c87
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80319
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
2024-02-08 13:13:58 +00:00
..
args.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
console.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
coreboot.c libpayload: Add parsing of SMBIOS address 2023-08-17 15:48:56 +00:00
ctype.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
die.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
exec.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
fmap.c commonlib/bsd: Remove cb_err_t 2022-03-09 02:18:21 +00:00
fpmath.c libpayload: Add simple 32.32 fixed-point math API 2020-07-09 00:32:11 +00:00
getopt_long.c commonlib: Change GCD function to always use 64 bits 2024-02-08 13:13:58 +00:00
hexdump.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
lib.c libpayload: Add vboot and reboot utility functions 2023-09-18 15:42:31 +00:00
libgcc.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
lp_vboot.c libpayload: Add vboot and reboot utility functions 2023-09-18 15:42:31 +00:00
Makefile.mk libpayload: Switch to commonlib ipchksum() algorithm 2024-02-02 22:48:48 +00:00
malloc.c libpayload: Add dma_allocator_range() 2023-11-21 13:50:53 +00:00
memory.c payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00
printf.c libpayload: Fix clang fallthrough warning 2023-08-28 02:12:25 +00:00
qsort.c libpayload: Fix whitespace errors 2013-06-27 14:46:43 +02:00
rand.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
readline.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
string.c libpayload/string: add strndup() function 2023-02-16 17:54:51 +00:00
strlcpy.c libpayload: Implement strlcpy 2011-07-07 22:29:35 +02:00
sysinfo.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
time.c commonlib: Change GCD function to always use 64 bits 2024-02-08 13:13:58 +00:00