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authorcinap_lenrek <cinap_lenrek@felloff.net>2014-01-20 00:47:55 +0100
committercinap_lenrek <cinap_lenrek@felloff.net>2014-01-20 00:47:55 +0100
commit6c2e983d328874ea41cb35bacb510bf2709a229f (patch)
treee2a5c596a3fcd1af3ed792494b78f2d503911b44 /sys/src/9/pc/trap.c
parentb99ecee6cd8c7c9fce1ff2cfa56d5a6807a0fc7c (diff)
kernel: apply uintptr for ulong when a pointer is stored
this change is in preparation for amd64. the systab calling convention was also changed to return uintptr (as segattach returns a pointer) and the arguments are now passed as va_list which handles amd64 arguments properly (all arguments are passed in 64bit quantities on the stack, tho the upper part will not be initialized when the element is smaller than 8 bytes). this is partial. xalloc needs to be converted in the future.
Diffstat (limited to 'sys/src/9/pc/trap.c')
-rw-r--r--sys/src/9/pc/trap.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/sys/src/9/pc/trap.c b/sys/src/9/pc/trap.c
index 867767198..c8a43bbb5 100644
--- a/sys/src/9/pc/trap.c
+++ b/sys/src/9/pc/trap.c
@@ -760,8 +760,7 @@ syscall(Ureg* ureg)
error(Ebadarg);
}
up->psstate = sysctab[scallnr];
-
- ret = systab[scallnr](up->s.args);
+ ret = systab[scallnr]((va_list)up->s.args);
poperror();
}else{
/* failure: save the error buffer for errstr */
@@ -975,8 +974,8 @@ if(0) print("%s %lud: noted %.8lux %.8lux\n",
}
}
-long
-execregs(ulong entry, ulong ssize, ulong nargs)
+uintptr
+execregs(uintptr entry, ulong ssize, ulong nargs)
{
ulong *sp;
Ureg *ureg;
@@ -996,7 +995,7 @@ execregs(ulong entry, ulong ssize, ulong nargs)
/*
* return the userpc the last exception happened at
*/
-ulong
+uintptr
userpc(void)
{
Ureg *ureg;