diff options
Diffstat (limited to 'lang/icon/patches/patch-ci')
| -rw-r--r-- | lang/icon/patches/patch-ci | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lang/icon/patches/patch-ci b/lang/icon/patches/patch-ci new file mode 100644 index 00000000000..3e9932a6f8b --- /dev/null +++ b/lang/icon/patches/patch-ci @@ -0,0 +1,44 @@ +$NetBSD: patch-ci,v 1.1 2000/06/19 15:56:36 pooka Exp $ + +--- /dev/null Thu Jan 1 00:00:00 1970 ++++ config/unix/sun_netbsd/rswitch.c Thu Jun 8 22:14:54 2000 +@@ -0,0 +1,39 @@ ++/* ++ * coswitch for Sun-4 Sparc. ++ * ++ * Compile this with 'cc -c rswitch.c'. Do not use cc -O. ++ */ ++ ++/* #include <sys/asm_linkage.h> */ ++/*#include <sys/trap.h>*/ ++ ++int coswitch(old_cs, new_cs, first) ++int *old_cs, *new_cs; ++int first; ++{ ++ asm("ta 0x03"); /* ST_FLUSH_WINDOWS in trap.h */ ++ asm("ld [%fp+0x44], %o0"); /* load old_cs into %o0 */ ++ asm("st %sp,[%o0]"); /* Save user stack pointer */ ++ asm("st %fp,[%o0+0x4]"); /* Save frame pointer */ ++ asm("st %i7,[%o0+0x8]"); /* Save return address */ ++ ++ if (first == 0) { /* this is the first activation */ ++ asm("ld [%fp+0x48], %o0"); /* load new_cs into %o0 */ ++ asm("ld [%o0], %o1"); /* load %o1 from cstate[0] */ ++ ++ /* Decrement new stack pointer value before loading it into sp. */ ++ /* The top 64 bytes of the stack are reserved for the kernel, to */ ++ /* save the 8 local and 8 in registers into, on context switches, */ ++ /* interrupts, traps, etc. */ ++ ++ asm("save %o1,-96, %sp"); /* load %sp from %o1 */ ++ new_context(0,0); ++ syserr("new_context() returned in coswitch"); ++ ++ } else { ++ asm("ld [%fp+0x48], %o0"); /* load new_cs into %o0 */ ++ asm("ld [%o0+0x4],%fp"); /* Load frame pointer */ ++ asm("ld [%o0+0x8],%i7"); /* Load return address */ ++ asm("ld [%o0],%sp"); /* Load user stack pointer */ ++ } ++} |