libucontext

Author	SHA1	Message	Date
Volker Christian	9e5de65076	libucontext: Add patch fixing return values of get/set/swapcontext The arm ABI defines that the value in register r0 is used as the return value of a function. To indicate success for get/set/swapcontext (return value of 0) the register r0 must contain zero at the end of the function call. Thus set r0 to zero and store it in the context. This context is restored later and indicate successful execution, because r0 is 0. The order registers are stored has changed so that only one additional instruction (mov r0, #0) needs to be added to fix the return value bug for get/set/swapcontext. Signed-off-by: Volker Christian <me@vchrist.at>	2024-08-07 17:44:43 -07:00
Richard Campbell	7bc3e90984	Added arm conditional vfp save/restore	2022-03-04 10:35:25 -08:00
Ariadne Conill	39a2958561	add previous ABI symbols	2021-01-08 02:30:50 -07:00
Ariadne Conill	e65e485630	everywhere: rename __swapcontext to libucontext_swapcontext	2020-12-06 03:04:22 -06:00
Ariadne Conill	f708c95659	arm: modernize	2020-03-30 05:04:18 +00:00
Ariadne Conill	d31eaabbaf	update copyright statements, add mailmap	2020-03-27 09:23:49 +00:00
William Pitcock	247f30400c	arch: arm: add armv6+ port	2018-01-31 04:11:46 +00:00