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all: fix warnings 

cpu.c:587:4: warning: ‘n’ may be used uninitialized in this function
cpu.c:659:3: warning: dereferencing type-punned pointer will break strict-aliasing rules
cpu.c:659:3: warning: dereferencing type-punned pointer will break strict-aliasing rules
kern/devaudio.c:238:25: warning: variable ‘in’ set but not used
kern/devaudio.c:240:8: warning: variable ‘a’ set but not used
kern/sysproc.c:14:11: warning: cast to pointer from integer of different size
libc/nsec.c:56:12: warning: implicit declaration of function ‘libstrtoll’
libc/runestrchr.c:16:2: warning: suggest parentheses around assignment used as truth value
libmemdraw/draw.c:2209:4: warning: dereferencing type-punned pointer will break strict-aliasing rules
libmemdraw/draw.c:2224:4: warning: dereferencing type-punned pointer will break strict-aliasing rules
libmemdraw/draw.c:2455:4: warning: dereferencing type-punned pointer will break strict-aliasing rules
libmemdraw/draw.c:2481:4: warning: dereferencing type-punned pointer will break strict-aliasing rules
This commit is contained in:
Giacomo Tesio 2016-01-07 15:17:21 +01:00 committed by David du Colombier
parent 23d9a24788
commit 19a5046403
7 changed files with 12 additions and 15 deletions
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2
Make.unix
View File

@ -6,7 +6,7 @@ AS=as
RANLIB=ranlib RANLIB=ranlib
X11=/usr/X11R6 X11=/usr/X11R6
CC=gcc CC=gcc
CFLAGS=-Wall -Wno-missing-braces -ggdb -I$(ROOT) -I$(ROOT)/include -I$(ROOT)/kern -c -I$(X11)/include -D_THREAD_SAFE $(PTHREAD) -O2 CFLAGS=-Wall -Wno-missing-braces -fno-strict-aliasing -ggdb -I$(ROOT) -I$(ROOT)/include -I$(ROOT)/kern -c -I$(X11)/include -D_THREAD_SAFE $(PTHREAD) -O2
O=o O=o
OS=posix OS=posix
GUI=x11 GUI=x11

2
cpu.c
View File

@ -583,7 +583,7 @@ p9any(int fd)
if(write(fd, buf2, strlen(buf2)+1) != strlen(buf2)+1) if(write(fd, buf2, strlen(buf2)+1) != strlen(buf2)+1)
fatal(1, "cannot write user/domain choice in p9any"); fatal(1, "cannot write user/domain choice in p9any");
if(v2){ if(v2){
if(readstr(fd, buf, sizeof buf) < 0) if((n = readstr(fd, buf, sizeof buf)) < 0)
fatal(1, "cannot read OK in p9any: got %d %s", n, buf); fatal(1, "cannot read OK in p9any: got %d %s", n, buf);
if(memcmp(buf, "OK\0", 3) != 0) if(memcmp(buf, "OK\0", 3) != 0)
fatal(1, "did not get OK in p9any"); fatal(1, "did not get OK in p9any");

3
include/lib.h
View File

@ -17,7 +17,10 @@
#define log2 liblog2 #define log2 liblog2
#define log liblog #define log liblog
#define reboot libreboot #define reboot libreboot
#ifdef strtoll
#undef strtoll
#define strtoll libstrtoll #define strtoll libstrtoll
#endif
#undef timeradd #undef timeradd
#define timeradd xtimeradd #define timeradd xtimeradd

8
kern/devaudio.c
View File

@ -235,12 +235,10 @@ static long
audiowrite(Chan *c, void *vp, long n, vlong off) audiowrite(Chan *c, void *vp, long n, vlong off)
{ {
long m; long m;
int i, v, left, right, in, out; int i, v, left, right, out;
Cmdbuf *cb; Cmdbuf *cb;
char *a;
USED(off); USED(off);
a = vp;
switch((ulong)c->qid.path) { switch((ulong)c->qid.path) {
default: default:
error(Eperm); error(Eperm);
@ -250,7 +248,6 @@ audiowrite(Chan *c, void *vp, long n, vlong off)
v = Vaudio; v = Vaudio;
left = 1; left = 1;
right = 1; right = 1;
in = 1;
out = 1; out = 1;
cb = parsecmd(vp, n); cb = parsecmd(vp, n);
if(waserror()){ if(waserror()){
@ -278,7 +275,6 @@ audiowrite(Chan *c, void *vp, long n, vlong off)
for(m=0; volumes[m].name; m++) { for(m=0; volumes[m].name; m++) {
if(strcmp(cb->f[i], volumes[m].name) == 0) { if(strcmp(cb->f[i], volumes[m].name) == 0) {
v = m; v = m;
in = 1;
out = 1; out = 1;
left = 1; left = 1;
right = 1; right = 1;
@ -291,12 +287,10 @@ audiowrite(Chan *c, void *vp, long n, vlong off)
goto cont0; goto cont0;
} }
if(strcmp(cb->f[i], "in") == 0) { if(strcmp(cb->f[i], "in") == 0) {
in = 1;
out = 0; out = 0;
goto cont0; goto cont0;
} }
if(strcmp(cb->f[i], "out") == 0) { if(strcmp(cb->f[i], "out") == 0) {
in = 0;
out = 1; out = 1;
goto cont0; goto cont0;
} }

2
kern/sysproc.c
View File

@ -5,7 +5,7 @@
#include "error.h" #include "error.h"
long long
sysexits(ulong *arg) sysexits(uintptr_t *arg)
{ {
char *status; char *status;
char *inval = "invalid exit string"; char *inval = "invalid exit string";

2
libc/runestrchr.c
View File

@ -13,7 +13,7 @@ runestrchr(Rune *s, Rune c)
return s-1; return s-1;
} }
while(c1 = *s++) while((c1 = *s++))
if(c1 == c0) if(c1 == c0)
return s-1; return s-1;
return 0; return 0;

8
libmemdraw/draw.c
View File

@ -2206,7 +2206,7 @@ DBG print("dp %p v %lux lm %ux (v ^ *dp) & lm %lux\n", dp, v, lm, (v^*dp)&lm);
case 16: case 16:
p[0] = v; /* make little endian */ p[0] = v; /* make little endian */
p[1] = v>>8; p[1] = v>>8;
v = *(ushort*)p; v = *(ushort*)(void*)p;
DBG print("dp=%p; dx=%d; for(y=0; y<%d; y++, dp+=%d)\nmemsets(dp, v, dx);\n", DBG print("dp=%p; dx=%d; for(y=0; y<%d; y++, dp+=%d)\nmemsets(dp, v, dx);\n",
dp, dx, dy, dwid); dp, dx, dy, dwid);
for(y=0; y<dy; y++, dp+=dwid) for(y=0; y<dy; y++, dp+=dwid)
@ -2221,7 +2221,7 @@ DBG print("dp=%p; dx=%d; for(y=0; y<%d; y++, dp+=%d)\nmemsets(dp, v, dx);\n",
p[1] = v>>8; p[1] = v>>8;
p[2] = v>>16; p[2] = v>>16;
p[3] = v>>24; p[3] = v>>24;
v = *(ulong*)p; v = *(ulong*)(void*)p;
for(y=0; y<dy; y++, dp+=dwid) for(y=0; y<dy; y++, dp+=dwid)
memsetl(dp, v, dx); memsetl(dp, v, dx);
return 1; return 1;
@ -2452,7 +2452,7 @@ DBG print("bits %lux sh %d...", bits, i);
break; break;
case 16: case 16:
ws = (ushort*)wp; ws = (ushort*)wp;
v = *(ushort*)sp; v = *(ushort*)(void*)sp;
for(x=bx; x>ex; x--, ws++){ for(x=bx; x>ex; x--, ws++){
i = x&7; i = x&7;
if(i == 8-1) if(i == 8-1)
@ -2478,7 +2478,7 @@ DBG print("bits %lux sh %d...", bits, i);
break; break;
case 32: case 32:
wl = (ulong*)wp; wl = (ulong*)wp;
v = *(ulong*)sp; v = *(ulong*)(void*)sp;
for(x=bx; x>ex; x--, wl++){ for(x=bx; x>ex; x--, wl++){
i = x&7; i = x&7;
if(i == 8-1) if(i == 8-1)