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authorcinap_lenrek <cinap_lenrek@gmx.de>2012-07-30 19:11:16 +0200
committercinap_lenrek <cinap_lenrek@gmx.de>2012-07-30 19:11:16 +0200
commit4f33c88a51587681b7be1ae57cfbc43b627c6bc4 (patch)
tree25560404dc80007e5dc268811242c9071f6a1017 /sys/src/cmd/5i
parentfcc5e75d07e5bc6cb3ddac6d9a437e7ec62d0d95 (diff)
import updated compilers from sources
Diffstat (limited to 'sys/src/cmd/5i')
-rw-r--r--sys/src/cmd/5i/5i.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/src/cmd/5i/5i.c b/sys/src/cmd/5i/5i.c
index 554a9f2cc..73e51219d 100644
--- a/sys/src/cmd/5i/5i.c
+++ b/sys/src/cmd/5i/5i.c
@@ -147,6 +147,15 @@ initstk(int argc, char *argv[])
initmap();
tos = STACKTOP - sizeof(Tos)*2; /* we'll assume twice the host's is big enough */
sp = tos;
+ for (i = 0; i < sizeof(Tos)*2; i++)
+ putmem_b(tos + i, 0);
+
+ /*
+ * pid is second word from end of tos and needs to be set for nsec().
+ * we know arm is a 32-bit cpu, so we'll assume knowledge of the Tos
+ * struct for now, and use our pid.
+ */
+ putmem_w(tos + 4*4 + 2*sizeof(ulong) + 3*sizeof(uvlong), getpid());
/* Build exec stack */
size = strlen(file)+1+BY2WD+BY2WD+BY2WD;
@@ -157,7 +166,7 @@ initstk(int argc, char *argv[])
sp &= ~7;
reg.r[0] = tos;
reg.r[13] = sp;
- reg.r[1] = STACKTOP-4; /* Plan 9 profiling clock */
+ reg.r[1] = STACKTOP-4; /* Plan 9 profiling clock (why & why in R1?) */
/* Push argc */
putmem_w(sp, argc+1);