Jeenu Viswambharan a806dad58c Define and use no_ret macro where no return is expected ... There are many instances in ARM Trusted Firmware where control is transferred to functions from which return isn't expected. Such jumps are made using 'bl' instruction to provide the callee with the location from which it was jumped to. Additionally, debuggers infer the caller by examining where 'lr' register points to. If a 'bl' of the nature described above falls at the end of an assembly function, 'lr' will be left pointing to a location outside of the function range. This misleads the debugger back trace. This patch defines a 'no_ret' macro to be used when jumping to functions from which return isn't expected. The macro ensures to use 'bl' instruction for the jump, and also, for debug builds, places a 'nop' instruction immediately thereafter (unless instructed otherwise) so as to leave 'lr' pointing within the function range. Change-Id: Ib34c69fc09197cfd57bc06e147cc8252910e01b0 Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>		2016-12-05 14:55:35 +00:00
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bl1	FWU: Add Generic Firmware Update framework support in BL1	2015-12-09 17:41:18 +00:00
bl31	Introduce PSCI Library Interface	2016-07-19 10:19:01 +01:00
bl32	AArch32: Support in SP_MIN to receive arguments from BL2	2016-09-21 16:28:46 +01:00
common	Define and use no_ret macro where no return is expected	2016-12-05 14:55:35 +00:00
drivers	partition: check GPT partition table	2016-09-20 13:19:32 +08:00
lib	Reset debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR	2016-11-09 15:45:06 +00:00
plat	Introduce ARM SiP service	2016-10-12 15:36:45 +01:00
services	PSCI: Do psci_setup() as part of std_svc_setup()	2016-09-22 17:07:20 +01:00