sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

arch/xtensa/src/common/xtensa_context.S: Don't save CALL0 ABI

Browse Source 
callee-saved registers.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
This commit is contained in:
Abdelatif Guettouche 2020-11-27 11:17:07 +00:00 committed by Alan Carvalho de Assis
parent 716a29ebeb
commit 5f9d9ba44c
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/xtensa/src/common/xtensa_context.S
View File

@ -126,12 +126,14 @@ _xtensa_context_save:
s32i a10, a2, (4 * REG_A10)
s32i a11, a2, (4 * REG_A11)
/* Call0 ABI callee-saved regs a12-15 */
/* Call0 ABI callee-saved regs a12-15 do not need to be saved here */
#ifndef __XTENSA_CALL0_ABI__
s32i a12, a2, (4 * REG_A12)
s32i a13, a2, (4 * REG_A13)
s32i a14, a2, (4 * REG_A14)
s32i a15, a2, (4 * REG_A15)
#endif
rsr a3, SAR
s32i a3, a2, (4 * REG_SAR)
@ -482,10 +484,12 @@ _xtensa_context_restore:
/* Call0 ABI callee-saved regs a12-15 */
#ifndef __XTENSA_CALL0_ABI__
l32i a12, a2, (4 * REG_A12)
l32i a13, a2, (4 * REG_A13)
l32i a14, a2, (4 * REG_A14)
l32i a15, a2, (4 * REG_A15)
#endif
ret