tvarious forgotten files - plan9port - [fork] Plan 9 from user space
(HTM) git clone git://src.adamsgaard.dk/plan9port
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---
(DIR) commit e5c26b01f70303f3322ac98d670ef886a62ac38a
(DIR) parent dcc9531c5a8d5d43d71060f8975d592c7598b349
(HTM) Author: rsc <devnull@localhost>
Date: Mon, 20 Sep 2004 15:08:57 +0000
various forgotten files
Diffstat:
M src/cmd/9term/9term.c | 20 ++++++++++++++------
M src/cmd/rio/menu.c | 3 +++
A src/lib9/getcallerpc-power.c | 11 +++++++++++
A src/lib9/tas-power.c | 42 +++++++++++++++++++++++++++++++
A src/libthread/asm-Linux-power.s | 80 +++++++++++++++++++++++++++++++
A src/libthread/power.c | 40 +++++++++++++++++++++++++++++++
M src/libthread/sched.c | 1 -
A src/libthread/tfork.c | 23 +++++++++++++++++++++++
A unix/make/Make.Linux-power | 6 ++++++
9 files changed, 219 insertions(+), 7 deletions(-)
---
(DIR) diff --git a/src/cmd/9term/9term.c b/src/cmd/9term/9term.c
t@@ -879,6 +879,20 @@ key(Rune r)
return;
}
+ switch(r) {
+ case 0x03: /* ^C: send interrupt */
+ case 0x7F: /* DEL: send interrupt */
+ t.qh = t.q0 = t.q1 = t.nr;
+ show(t.q0);
+{int x; x=tcgetpgrp(rcfd);
+print("postnote %d pgrp %d\n", rcpid, x);
+ postnote(PNGROUP, x, "interrupt");
+if(x >= 2) killpg(x, 2);
+}
+ // write(rcfd, "\x7F", 1);
+ return;
+ }
+
if(rawon() && t.q0==t.nr){
addraw(&r, 1);
consread();
t@@ -898,12 +912,6 @@ key(Rune r)
snarf();
switch(r) {
- case 0x03: /* ^C: send interrupt */
- case 0x7F: /* DEL: send interrupt */
- t.qh = t.q0 = t.q1 = t.nr;
- show(t.q0);
- write(rcfd, "\x7F", 1);
- break;
case 0x06: /* ^F: file name completion */
case Kins: /* Insert: file name completion */
rp = namecomplete();
(DIR) diff --git a/src/cmd/rio/menu.c b/src/cmd/rio/menu.c
t@@ -138,6 +138,9 @@ spawn(ScreenInfo *s)
close(ConnectionNumber(dpy));
if (s->display[0] != '\0')
putenv(s->display);
+ signal(SIGINT, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
if (termprog != NULL) {
execl(shell, shell, "-c", termprog, 0);
fprintf(stderr, "rio: exec %s", shell);
(DIR) diff --git a/src/lib9/getcallerpc-power.c b/src/lib9/getcallerpc-power.c
t@@ -0,0 +1,11 @@
+#include <lib9.h>
+
+ulong
+getcallerpc(void *x)
+{
+ ulong *lp;
+
+ lp = x;
+
+ return lp[-1];
+}
(DIR) diff --git a/src/lib9/tas-power.c b/src/lib9/tas-power.c
t@@ -0,0 +1,42 @@
+#include "u.h"
+#include "libc.h"
+
+/*
+ * first argument (l) is in r3 at entry.
+ * r3 contains return value upon return.
+ */
+int
+_tas(int *x)
+{
+ int v;
+ int tmp, tmp2, tmp3;
+
+ /*
+ * this __asm__ works with gcc on linux
+ */
+ __asm__("\n sync\n"
+ " li %1,0\n"
+ " mr %2,%4 /* &x->val */\n"
+ " lis %3,0xdead /* assemble constant 0xdeaddead */\n"
+ " ori %3,%3,0xdead /* \" */\n"
+ "tas1:\n"
+ " dcbf %2,%1 /* cache flush; \"fix for 603x bug\" */\n"
+ " lwarx %0,%2,%1 /* v = x->val with reservation */\n"
+ " cmp cr0,0,%0,%1 /* v == 0 */\n"
+ " bne tas0\n"
+ " stwcx. %3,%2,%1 /* if (x->val same) x->val = 0xdeaddead */\n"
+ " bne tas1\n"
+ "tas0:\n"
+ " sync\n"
+ " isync\n"
+ : "=r" (v), "=&r" (tmp), "=&r"(tmp2), "=&r"(tmp3)
+ : "r" (x)
+ : "cr0", "memory"
+ );
+ switch(v) {
+ case 0: return 0;
+ case 0xdeaddead: return 1;
+ default: fprint(2, "tas: corrupted 0x%lux\n", v);
+ }
+ return 0;
+}
(DIR) diff --git a/src/libthread/asm-Linux-power.s b/src/libthread/asm-Linux-power.s
t@@ -0,0 +1,80 @@
+/* get FPR and VR use flags with sc 0x7FF3 */
+/* get vsave with mfspr reg, 256 */
+
+.text
+.align 2
+
+.globl _setlabel
+
+_setlabel: /* xxx: instruction scheduling */
+ mflr 0
+ mfcr 5
+ mfctr 6
+ mfxer 7
+ stw 0, 0*4(3)
+ stw 5, 1*4(3)
+ stw 6, 2*4(3)
+ stw 7, 3*4(3)
+
+ stw 1, 4*4(3)
+ stw 2, 5*4(3)
+
+ stw 13, (0+6)*4(3) /* callee-save GPRs */
+ stw 14, (1+6)*4(3) /* xxx: block move */
+ stw 15, (2+6)*4(3)
+ stw 16, (3+6)*4(3)
+ stw 17, (4+6)*4(3)
+ stw 18, (5+6)*4(3)
+ stw 19, (6+6)*4(3)
+ stw 20, (7+6)*4(3)
+ stw 21, (8+6)*4(3)
+ stw 22, (9+6)*4(3)
+ stw 23, (10+6)*4(3)
+ stw 24, (11+6)*4(3)
+ stw 25, (12+6)*4(3)
+ stw 26, (13+6)*4(3)
+ stw 27, (14+6)*4(3)
+ stw 28, (15+6)*4(3)
+ stw 29, (16+6)*4(3)
+ stw 30, (17+6)*4(3)
+ stw 31, (18+6)*4(3)
+
+ li 3, 0 /* return */
+ blr
+
+.globl _gotolabel
+
+_gotolabel:
+ lwz 13, (0+6)*4(3) /* callee-save GPRs */
+ lwz 14, (1+6)*4(3) /* xxx: block move */
+ lwz 15, (2+6)*4(3)
+ lwz 16, (3+6)*4(3)
+ lwz 17, (4+6)*4(3)
+ lwz 18, (5+6)*4(3)
+ lwz 19, (6+6)*4(3)
+ lwz 20, (7+6)*4(3)
+ lwz 21, (8+6)*4(3)
+ lwz 22, (9+6)*4(3)
+ lwz 23, (10+6)*4(3)
+ lwz 24, (11+6)*4(3)
+ lwz 25, (12+6)*4(3)
+ lwz 26, (13+6)*4(3)
+ lwz 27, (14+6)*4(3)
+ lwz 28, (15+6)*4(3)
+ lwz 29, (16+6)*4(3)
+ lwz 30, (17+6)*4(3)
+ lwz 31, (18+6)*4(3)
+
+ lwz 1, 4*4(3)
+ lwz 2, 5*4(3)
+
+ lwz 0, 0*4(3)
+ mtlr 0
+ lwz 0, 1*4(3)
+ mtcr 0 /* mtcrf 0xFF, r0 */
+ lwz 0, 2*4(3)
+ mtctr 0
+ lwz 0, 3*4(3)
+ mtxer 0
+ li 3, 1
+ blr
(DIR) diff --git a/src/libthread/power.c b/src/libthread/power.c
t@@ -0,0 +1,40 @@
+#include "threadimpl.h"
+
+static void
+launcherpower(int a0, int a1, int a2, int a3, int a4, int a5, int a6, int a7,
+ void (*f)(void *arg), void *arg)
+{
+ (*f)(arg);
+ threadexits(nil);
+}
+
+void
+_threadinitstack(Thread *t, void (*f)(void*), void *arg)
+{
+ ulong *tos, *stk;
+
+ tos = (ulong*)&t->stk[t->stksize&~7];
+ stk = tos;
+ --stk;
+ --stk;
+ --stk;
+ --stk;
+ *--stk = (ulong)arg;
+ *--stk = (ulong)f;
+ t->sched.pc = (ulong)launcherpower+LABELDPC;
+ t->sched.sp = ((ulong)stk)-8;
+ *((ulong *)t->sched.sp) = 0;
+}
+
+void
+_threadinswitch(int enter)
+{
+ USED(enter);
+}
+
+void
+_threadstacklimit(void *addr, void *addr2)
+{
+ USED(addr);
+}
+
(DIR) diff --git a/src/libthread/sched.c b/src/libthread/sched.c
t@@ -26,7 +26,6 @@ _schedinit(void *arg)
Proc *p;
Thread *t;
extern void ignusr1(int), _threaddie(int);
- ignusr1(1);
signal(SIGTERM, _threaddie);
p = arg;
(DIR) diff --git a/src/libthread/tfork.c b/src/libthread/tfork.c
t@@ -0,0 +1,23 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+
+Channel *c;
+
+void
+f(void *v)
+{
+ recvp(c);
+}
+
+void
+threadmain(int argc, char **argv)
+{
+ int i;
+
+ c = chancreate(sizeof(ulong), 0);
+ for(i=0;; i++){
+ print("%d\n", i);
+ proccreate(f, nil, 8192);
+ }
+}
(DIR) diff --git a/unix/make/Make.Linux-power b/unix/make/Make.Linux-power
t@@ -0,0 +1,6 @@
+CC=gcc
+CFLAGS+=-Wall -Wno-missing-braces -Wno-parentheses -Wno-switch -O2 -g -c -I.
+O=o
+AR=ar
+ARFLAGS=rvc
+NAN=nan64.$O