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[kernel] Branch to __darling_bsd_syscall instead of using svc syscall

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This commit is contained in:
Thomas A 2021-12-11 21:03:34 -08:00
parent b50131844d
commit 1f899c79a1
3 changed files with 34 additions and 0 deletions
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13
src/kernel/libsyscall/bsdsyscalls/SYS.h
View File

@ -472,6 +472,18 @@ pseudo: ;\
* TBD
*/
#ifdef DARLING
#define DO_SYSCALL(num, cerror) \
mov x16, #(num) %%\
bl __darling_bsd_syscall %%\
b.cc 2f %%\
PUSH_FRAME %%\
bl _##cerror %%\
POP_FRAME %%\
ret %%\
2:
#else
#define DO_SYSCALL(num, cerror) \
mov x16, #(num) %%\
svc #SWI_SYSCALL %%\
@ -481,6 +493,7 @@ pseudo: ;\
POP_FRAME %%\
ret %%\
2:
#endif
#define MI_GET_ADDRESS(reg,var) \
adrp reg, var@page %%\

13
src/kernel/libsyscall/custom/SYS.h
View File

@ -472,6 +472,18 @@ pseudo: ;\
* TBD
*/
#if DARLING
#define DO_SYSCALL(num, cerror) \
mov x16, #(num) %%\
bl __darling_bsd_syscall %%\
b.cc 2f %%\
PUSH_FRAME %%\
bl _##cerror %%\
POP_FRAME %%\
ret %%\
2:
#else
#define DO_SYSCALL(num, cerror) \
mov x16, #(num) %%\
svc #SWI_SYSCALL %%\
@ -481,6 +493,7 @@ pseudo: ;\
POP_FRAME %%\
ret %%\
2:
#endif
#define MI_GET_ADDRESS(reg,var) \
adrp reg, var@page %%\

8
src/kernel/libsyscall/wrappers/mach_absolute_time.S
View File

@ -262,7 +262,11 @@ L_mach_absolute_time_user:
.globl _mach_absolute_time_kernel
_mach_absolute_time_kernel:
mov w16, #-3 // Load the magic MAT number
#ifdef DARLING
bl __darling_bsd_syscall
#else
svc #SWI_SYSCALL
#endif
ret
.text
@ -270,7 +274,11 @@ _mach_absolute_time_kernel:
.globl _mach_continuous_time_kernel
_mach_continuous_time_kernel:
mov w16, #-4 // Load the magic MCT number
#ifdef DARLING
bl __darling_bsd_syscall
#else
svc #SWI_SYSCALL
#endif
ret
#else