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path: root/src/pkg/runtime/sys_netbsd_arm.s
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Diffstat (limited to 'src/pkg/runtime/sys_netbsd_arm.s')
-rw-r--r--src/pkg/runtime/sys_netbsd_arm.s162
1 files changed, 101 insertions, 61 deletions
diff --git a/src/pkg/runtime/sys_netbsd_arm.s b/src/pkg/runtime/sys_netbsd_arm.s
index 3ff335f4d..b2eb74ee3 100644
--- a/src/pkg/runtime/sys_netbsd_arm.s
+++ b/src/pkg/runtime/sys_netbsd_arm.s
@@ -7,41 +7,42 @@
//
#include "zasm_GOOS_GOARCH.h"
+#include "../../cmd/ld/textflag.h"
// Exit the entire program (like C exit)
-TEXT runtime·exit(SB),7,$-4
+TEXT runtime·exit(SB),NOSPLIT,$-4
MOVW 0(FP), R0 // arg 1 exit status
SWI $0xa00001
- MOVW.CS $0, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $0, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·exit1(SB),7,$-4
+TEXT runtime·exit1(SB),NOSPLIT,$-4
SWI $0xa00136 // sys__lwp_exit
- MOVW $1, R9 // crash
- MOVW R9, (R9)
+ MOVW $1, R8 // crash
+ MOVW R8, (R8)
RET
-TEXT runtime·open(SB),7,$-8
+TEXT runtime·open(SB),NOSPLIT,$-8
MOVW 0(FP), R0
MOVW 4(FP), R1
MOVW 8(FP), R2
SWI $0xa00005
RET
-TEXT runtime·close(SB),7,$-8
+TEXT runtime·close(SB),NOSPLIT,$-8
MOVW 0(FP), R0
SWI $0xa00006
RET
-TEXT runtime·read(SB),7,$-8
+TEXT runtime·read(SB),NOSPLIT,$-8
MOVW 0(FP), R0
MOVW 4(FP), R1
MOVW 8(FP), R2
SWI $0xa00003
RET
-TEXT runtime·write(SB),7,$-4
+TEXT runtime·write(SB),NOSPLIT,$-4
MOVW 0(FP), R0 // arg 1 - fd
MOVW 4(FP), R1 // arg 2 - buf
MOVW 8(FP), R2 // arg 3 - nbyte
@@ -49,18 +50,18 @@ TEXT runtime·write(SB),7,$-4
RET
// int32 lwp_create(void *context, uintptr flags, void *lwpid)
-TEXT runtime·lwp_create(SB),7,$0
+TEXT runtime·lwp_create(SB),NOSPLIT,$0
MOVW context+0(FP), R0
MOVW flags+4(FP), R1
MOVW lwpid+8(FP), R2
SWI $0xa00135 // sys__lwp_create
RET
-TEXT runtime·osyield(SB),7,$0
+TEXT runtime·osyield(SB),NOSPLIT,$0
SWI $0xa0015e // sys_sched_yield
RET
-TEXT runtime·lwp_park(SB),7,$0
+TEXT runtime·lwp_park(SB),NOSPLIT,$0
MOVW 0(FP), R0 // arg 1 - abstime
MOVW 4(FP), R1 // arg 2 - unpark
MOVW 8(FP), R2 // arg 3 - hint
@@ -68,27 +69,27 @@ TEXT runtime·lwp_park(SB),7,$0
SWI $0xa001b2 // sys__lwp_park
RET
-TEXT runtime·lwp_unpark(SB),7,$0
+TEXT runtime·lwp_unpark(SB),NOSPLIT,$0
MOVW 0(FP), R0 // arg 1 - lwp
MOVW 4(FP), R1 // arg 2 - hint
SWI $0xa00141 // sys__lwp_unpark
RET
-TEXT runtime·lwp_self(SB),7,$0
+TEXT runtime·lwp_self(SB),NOSPLIT,$0
SWI $0xa00137 // sys__lwp_self
RET
-TEXT runtime·lwp_tramp(SB),7,$0
- MOVW R0, R9 // m
- MOVW R1, R10 // g
+TEXT runtime·lwp_tramp(SB),NOSPLIT,$0
+ MOVW R0, m
+ MOVW R1, g
BL runtime·emptyfunc(SB) // fault if stack check is wrong
BL (R2)
- MOVW $2, R9 // crash (not reached)
- MOVW R9, (R9)
+ MOVW $2, R8 // crash (not reached)
+ MOVW R8, (R8)
RET
-TEXT runtime·usleep(SB),7,$16
+TEXT runtime·usleep(SB),NOSPLIT,$16
MOVW usec+0(FP), R0
MOVW R0, R2
MOVW $1000000, R1
@@ -107,13 +108,13 @@ TEXT runtime·usleep(SB),7,$16
SWI $0xa001ae // sys_nanosleep
RET
-TEXT runtime·raise(SB),7,$16
+TEXT runtime·raise(SB),NOSPLIT,$16
SWI $0xa00137 // sys__lwp_self, the returned R0 is arg 1
MOVW sig+0(FP), R1 // arg 2 - signal
SWI $0xa0013e // sys__lwp_kill
RET
-TEXT runtime·setitimer(SB),7,$-4
+TEXT runtime·setitimer(SB),NOSPLIT,$-4
MOVW 0(FP), R0 // arg 1 - which
MOVW 4(FP), R1 // arg 2 - itv
MOVW 8(FP), R2 // arg 3 - oitv
@@ -121,7 +122,7 @@ TEXT runtime·setitimer(SB),7,$-4
RET
// func now() (sec int64, nsec int32)
-TEXT time·now(SB), 7, $32
+TEXT time·now(SB), NOSPLIT, $32
MOVW $0, R0 // CLOCK_REALTIME
MOVW $8(R13), R1
SWI $0xa001ab // clock_gettime
@@ -137,7 +138,7 @@ TEXT time·now(SB), 7, $32
// int64 nanotime(void) so really
// void nanotime(int64 *nsec)
-TEXT runtime·nanotime(SB), 7, $32
+TEXT runtime·nanotime(SB), NOSPLIT, $32
MOVW $0, R0 // CLOCK_REALTIME
MOVW $8(R13), R1
SWI $0xa001ab // clock_gettime
@@ -157,33 +158,33 @@ TEXT runtime·nanotime(SB), 7, $32
MOVW R1, 4(R3)
RET
-TEXT runtime·getcontext(SB),7,$-4
+TEXT runtime·getcontext(SB),NOSPLIT,$-4
MOVW 0(FP), R0 // arg 1 - context
SWI $0xa00133 // sys_getcontext
- MOVW.CS $0, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $0, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·sigprocmask(SB),7,$0
+TEXT runtime·sigprocmask(SB),NOSPLIT,$0
MOVW 0(FP), R0 // arg 1 - how
MOVW 4(FP), R1 // arg 2 - set
MOVW 8(FP), R2 // arg 3 - oset
SWI $0xa00125 // sys_sigprocmask
- MOVW.CS $0, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $0, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·sigreturn_tramp(SB),7,$-4
- // in runtime·sigtramp, we saved ucontext into m->tls[0],
- // here we just load it and call sys_setcontext
- MOVW m_tls(m), R0
+TEXT runtime·sigreturn_tramp(SB),NOSPLIT,$-4
+ // on entry, SP points to siginfo, we add sizeof(ucontext)
+ // to SP to get a pointer to ucontext.
+ ADD $0x80, R13, R0 // 0x80 == sizeof(UcontextT)
SWI $0xa00134 // sys_setcontext
// something failed, we have to exit
MOVW $0x4242, R0 // magic return number
SWI $0xa00001 // sys_exit
B -2(PC) // continue exit
-TEXT runtime·sigaction(SB),7,$4
+TEXT runtime·sigaction(SB),NOSPLIT,$4
MOVW 0(FP), R0 // arg 1 - signum
MOVW 4(FP), R1 // arg 2 - nsa
MOVW 8(FP), R2 // arg 3 - osa
@@ -193,42 +194,45 @@ TEXT runtime·sigaction(SB),7,$4
ADD $4, R13 // pass arg 5 on stack
SWI $0xa00154 // sys___sigaction_sigtramp
SUB $4, R13
- MOVW.CS $3, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $3, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·sigtramp(SB),7,$24
+TEXT runtime·sigtramp(SB),NOSPLIT,$24
// this might be called in external code context,
// where g and m are not set.
- // first save R0, because _cgo_load_gm will clobber it
- // TODO(adonovan): call runtime·badsignal if m=0, like other platforms?
+ // first save R0, because runtime·load_gm will clobber it
MOVW R0, 4(R13) // signum
- MOVW _cgo_load_gm(SB), R0
+ MOVB runtime·iscgo(SB), R0
CMP $0, R0
- BL.NE (R0)
+ BL.NE runtime·load_gm(SB)
+
+ CMP $0, m
+ BNE 4(PC)
+ // signal number is already prepared in 4(R13)
+ MOVW $runtime·badsignal(SB), R11
+ BL (R11)
+ RET
// save g
- MOVW R10, R4
- MOVW R10, 20(R13)
+ MOVW g, R4
+ MOVW g, 20(R13)
// g = m->signal
- MOVW m_gsignal(R9), R10
+ MOVW m_gsignal(m), g
// R0 is already saved
MOVW R1, 8(R13) // info
MOVW R2, 12(R13) // context
MOVW R4, 16(R13) // gp
- // we also save the ucontext into m->tls[0] for easy
- // signal return
- MOVW R2, m_tls(m)
BL runtime·sighandler(SB)
// restore g
- MOVW 20(R13), R10
+ MOVW 20(R13), g
RET
-TEXT runtime·mmap(SB),7,$12
+TEXT runtime·mmap(SB),NOSPLIT,$12
MOVW 0(FP), R0 // arg 1 - addr
MOVW 4(FP), R1 // arg 2 - len
MOVW 8(FP), R2 // arg 3 - prot
@@ -246,15 +250,15 @@ TEXT runtime·mmap(SB),7,$12
SUB $4, R13
RET
-TEXT runtime·munmap(SB),7,$0
+TEXT runtime·munmap(SB),NOSPLIT,$0
MOVW 0(FP), R0 // arg 1 - addr
MOVW 4(FP), R1 // arg 2 - len
SWI $0xa00049 // sys_munmap
- MOVW.CS $0, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $0, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·madvise(SB),7,$0
+TEXT runtime·madvise(SB),NOSPLIT,$0
MOVW 0(FP), R0 // arg 1 - addr
MOVW 4(FP), R1 // arg 2 - len
MOVW 8(FP), R2 // arg 3 - behav
@@ -262,15 +266,15 @@ TEXT runtime·madvise(SB),7,$0
// ignore failure - maybe pages are locked
RET
-TEXT runtime·sigaltstack(SB),7,$-4
+TEXT runtime·sigaltstack(SB),NOSPLIT,$-4
MOVW 0(FP), R0 // arg 1 - nss
MOVW 4(FP), R1 // arg 2 - oss
SWI $0xa00119 // sys___sigaltstack14
- MOVW.CS $0, R9 // crash on syscall failure
- MOVW.CS R9, (R9)
+ MOVW.CS $0, R8 // crash on syscall failure
+ MOVW.CS R8, (R8)
RET
-TEXT runtime·sysctl(SB),7,$8
+TEXT runtime·sysctl(SB),NOSPLIT,$8
MOVW 0(FP), R0 // arg 1 - name
MOVW 4(FP), R1 // arg 2 - namelen
MOVW 8(FP), R2 // arg 3 - oldp
@@ -284,7 +288,37 @@ TEXT runtime·sysctl(SB),7,$8
SUB $4, R13
RET
-TEXT runtime·casp(SB),7,$0
+// int32 runtime·kqueue(void)
+TEXT runtime·kqueue(SB),NOSPLIT,$0
+ SWI $0xa00158 // sys_kqueue
+ RSB.CS $0, R0
+ RET
+
+// int32 runtime·kevent(int kq, Kevent *changelist, int nchanges, Kevent *eventlist, int nevents, Timespec *timeout)
+TEXT runtime·kevent(SB),NOSPLIT,$8
+ MOVW 0(FP), R0 // kq
+ MOVW 4(FP), R1 // changelist
+ MOVW 8(FP), R2 // nchanges
+ MOVW 12(FP), R3 // eventlist
+ MOVW 16(FP), R4 // nevents
+ MOVW R4, 4(R13)
+ MOVW 20(FP), R4 // timeout
+ MOVW R4, 8(R13)
+ ADD $4, R13 // pass arg 5 and 6 on stack
+ SWI $0xa001b3 // sys___kevent50
+ RSB.CS $0, R0
+ SUB $4, R13
+ RET
+
+// void runtime·closeonexec(int32 fd)
+TEXT runtime·closeonexec(SB),NOSPLIT,$0
+ MOVW 0(FP), R0 // fd
+ MOVW $2, R1 // F_SETFD
+ MOVW $1, R2 // FD_CLOEXEC
+ SWI $0xa0005c // sys_fcntl
+ RET
+
+TEXT runtime·casp(SB),NOSPLIT,$0
B runtime·cas(SB)
// TODO(minux): this is only valid for ARMv6+
@@ -295,5 +329,11 @@ TEXT runtime·casp(SB),7,$0
// return 1;
// }else
// return 0;
-TEXT runtime·cas(SB),7,$0
+TEXT runtime·cas(SB),NOSPLIT,$0
B runtime·armcas(SB)
+
+TEXT runtime·read_tls_fallback(SB),NOSPLIT,$-4
+ MOVM.WP [R1, R2, R3, R12], (R13)
+ SWI $0x00a0013c // _lwp_getprivate
+ MOVM.IAW (R13), [R1, R2, R3, R12]
+ RET
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-08 02:21:17 +0000