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pass Ureg* argument to note handler in R0 register on arm

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userspace note handlers, like any function, expect ther
first argument in R0 register on arm.
This commit is contained in:
cinap_lenrek 2015-04-30 16:29:40 +02:00
parent 12bb7bcfff
commit 35c9648ee1
4 changed files with 9 additions and 0 deletions
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3
sys/src/9/kw/syscall.c
View file

@ -78,6 +78,7 @@ noted(Ureg* cur, uintptr arg0)
nf->arg0 = &nf->ureg;
nf->ip = 0;
cur->sp = PTR2UINT(nf);
cur->r0 = PTR2UINT(nf->arg0);
break;
default:
up->lastnote.flag = NDebug;
@ -163,6 +164,8 @@ notify(Ureg* ureg)
ureg->sp = sp;
ureg->pc = PTR2UINT(up->notify);
ureg->r0 = PTR2UINT(nf->arg0);
up->notified = 1;
up->nnote--;
memmove(&up->lastnote, &up->note[0], sizeof(Note));

3
sys/src/9/omap/syscall.c
View file

@ -78,6 +78,7 @@ noted(Ureg* cur, uintptr arg0)
nf->arg0 = &nf->ureg;
nf->ip = 0;
cur->sp = PTR2UINT(nf);
cur->r0 = PTR2UINT(nf->arg0);
break;
default:
up->lastnote.flag = NDebug;
@ -163,6 +164,8 @@ notify(Ureg* ureg)
ureg->sp = sp;
ureg->pc = PTR2UINT(up->notify);
ureg->r0 = PTR2UINT(nf->arg0);
up->notified = 1;
up->nnote--;
memmove(&up->lastnote, &up->note[0], sizeof(Note));

2
sys/src/9/teg2/syscall.c
View file

@ -84,6 +84,7 @@ noted(Ureg* cur, uintptr arg0)
nf->arg0 = &nf->ureg;
nf->ip = 0;
cur->sp = PTR2UINT(nf);
cur->r0 = PTR2UINT(nf->arg0);
break;
default:
up->lastnote.flag = NDebug;
@ -169,6 +170,7 @@ notify(Ureg* ureg)
ureg->sp = sp;
ureg->pc = PTR2UINT(up->notify);
ureg->r0 = PTR2UINT(nf->arg0);
up->notified = 1;
up->nnote--;

1
sys/src/9/zynq/trap.c
View file

@ -423,6 +423,7 @@ noted(Ureg *ureg, ulong arg0)
sp = oureg - 4 * BY2WD - ERRMAX;
splhi();
ureg->sp = sp;
ureg->r0 = (uintptr) oureg;
((ulong *) sp)[1] = oureg;
((ulong *) sp)[0] = 0;
break;