linux.git/arch/xtensa/kernel/mcount.S, branch v6.0 Linux kernel source tree xtensa: implement call0 ABI support in assembly 2021-10-19T05:19:35+00:00 Max Filippov jcmvbkbc@gmail.com 2021-05-01T22:32:58+00:00 0b5372570b1f3fcb35255d28e707846e613c27f2 Replace hardcoded register and opcode names with ABI-agnostic macros. Add register save/restore code where necessary. Conditionalize windowed only or call0 only code. Add stack initialization matching _switch_to epilogue to copy_thread. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
Replace hardcoded register and opcode names with ABI-agnostic macros.
Add register save/restore code where necessary. Conditionalize windowed
only or call0 only code. Add stack initialization matching _switch_to
epilogue to copy_thread.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: abstract 'entry' and 'retw' in assembly code 2019-07-08T17:04:48+00:00 Max Filippov jcmvbkbc@gmail.com 2019-05-13T03:28:25+00:00 d6d5f19e21d98c0607ff029e4e2e508d4cdd1d5a Provide abi_entry, abi_entry_default, abi_ret and abi_ret_default macros that allocate aligned stack frame in windowed and call0 ABIs. Provide XTENSA_SPILL_STACK_RESERVE macro that specifies required stack frame size when register spilling is involved. Replace all uses of 'entry' and 'retw' with the above macros. This makes most of the xtensa assembly code ready for XEA3 and call0 ABI. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
Provide abi_entry, abi_entry_default, abi_ret and abi_ret_default macros
that allocate aligned stack frame in windowed and call0 ABIs.
Provide XTENSA_SPILL_STACK_RESERVE macro that specifies required stack
frame size when register spilling is involved.
Replace all uses of 'entry' and 'retw' with the above macros.
This makes most of the xtensa assembly code ready for XEA3 and call0 ABI.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: add static function tracer support 2013-07-08T08:18:57+00:00 Max Filippov jcmvbkbc@gmail.com 2013-05-24T03:02:25+00:00 478ba61afccd3a4d7ca662cadff1d35d183fe67d Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net> 
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>