tPowerPC Linux support from ericvh. Mainly adding va_copy/va_end. Also fix bug in sprint wrapping around top of memory. - plan9port - [fork] Plan 9 from user space
(HTM) git clone git://src.adamsgaard.dk/plan9port
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---
(DIR) commit 984e353160593b20d1e2944e1f2e9ce2117c8490
(DIR) parent c8c0df440f1a22effd43023368c801e1351e31ed
(HTM) Author: rsc <devnull@localhost>
Date: Sun, 22 Aug 2004 15:39:56 +0000
PowerPC Linux support from ericvh.
Mainly adding va_copy/va_end.
Also fix bug in sprint wrapping
around top of memory.
Diffstat:
M src/Makefile | 2 +-
M src/lib9/fmt/fmtprint.c | 5 +++--
M src/lib9/fmt/fmtvprint.c | 8 +++++---
M src/lib9/fmt/nan64.c | 2 +-
M src/lib9/fmt/runevseprint.c | 3 ++-
M src/lib9/fmt/runevsmprint.c | 3 ++-
M src/lib9/fmt/runevsnprint.c | 3 ++-
M src/lib9/fmt/sprint.c | 11 ++++++++++-
M src/lib9/fmt/vfprint.c | 3 ++-
M src/lib9/fmt/vseprint.c | 3 ++-
M src/lib9/fmt/vsmprint.c | 3 ++-
M src/lib9/fmt/vsnprint.c | 4 +++-
M src/libbio/bprint.c | 3 ++-
M src/libthread/label.h | 15 +++++++++++++++
M src/libthread/mkfile | 1 +
M src/mkhdr | 2 +-
16 files changed, 54 insertions(+), 17 deletions(-)
---
(DIR) diff --git a/src/Makefile b/src/Makefile
t@@ -1,6 +1,6 @@
../bin/mk: mkmk.sh
SYSNAME=`uname` export SYSNAME; \
- OBJTYPE=`uname -m | sed 's;i.86;386;; s;/.*;;; s; ;;g'` export OBJTYPE; \
+ OBJTYPE=`uname -m | sed 's;i.86;386;; s;/.*;;; s; ;;g' | sed 's/ppc64/power/g' | sed 's/ppc/power/g'` export OBJTYPE; \
PATH=`pwd`/../bin:$$PATH export PATH; \
PLAN9=`pwd`/.. export PLAN9; \
sh -x mkmk.sh
(DIR) diff --git a/src/lib9/fmt/fmtprint.c b/src/lib9/fmt/fmtprint.c
t@@ -32,14 +32,15 @@ fmtprint(Fmt *f, char *fmt, ...)
f->flags = 0;
f->width = 0;
f->prec = 0;
- va = f->args;
+ va_copy(va, f->args);
va_start(f->args, fmt);
n = dofmt(f, fmt);
va_end(f->args);
f->flags = 0;
f->width = 0;
f->prec = 0;
- f->args = va;
+ va_copy(f->args,va);
+ va_end(va);
if(n >= 0)
return 0;
return n;
(DIR) diff --git a/src/lib9/fmt/fmtvprint.c b/src/lib9/fmt/fmtvprint.c
t@@ -32,13 +32,15 @@ fmtvprint(Fmt *f, char *fmt, va_list args)
f->flags = 0;
f->width = 0;
f->prec = 0;
- va = f->args;
- f->args = args;
+ va_copy(va,f->args);
+ va_copy(f->args,args);
n = dofmt(f, fmt);
f->flags = 0;
f->width = 0;
f->prec = 0;
- f->args = va;
+ va_end(f->args);
+ va_copy(f->args,va);
+ va_end(va);
if(n >= 0)
return 0;
return n;
(DIR) diff --git a/src/lib9/fmt/nan64.c b/src/lib9/fmt/nan64.c
t@@ -7,7 +7,7 @@
#include "nan.h"
-#ifdef __APPLE__
+#if defined (__APPLE__) || (__powerpc__)
#define _NEEDLL
#endif
(DIR) diff --git a/src/lib9/fmt/runevseprint.c b/src/lib9/fmt/runevseprint.c
t@@ -31,8 +31,9 @@ runevseprint(Rune *buf, Rune *e, char *fmt, va_list args)
f.flush = nil;
f.farg = nil;
f.nfmt = 0;
- f.args = args;
+ va_copy(f.args,args);
dofmt(&f, fmt);
+ va_end(f.args);
*(Rune*)f.to = '\0';
return (Rune*)f.to;
}
(DIR) diff --git a/src/lib9/fmt/runevsmprint.c b/src/lib9/fmt/runevsmprint.c
t@@ -28,8 +28,9 @@ runevsmprint(char *fmt, va_list args)
if(runefmtstrinit(&f) < 0)
return nil;
- f.args = args;
+ va_copy(f.args,args);
n = dofmt(&f, fmt);
+ va_end(f.args);
if(n < 0)
return nil;
*(Rune*)f.to = '\0';
(DIR) diff --git a/src/lib9/fmt/runevsnprint.c b/src/lib9/fmt/runevsnprint.c
t@@ -31,8 +31,9 @@ runevsnprint(Rune *buf, int len, char *fmt, va_list args)
f.flush = nil;
f.farg = nil;
f.nfmt = 0;
- f.args = args;
+ va_copy(f.args,args);
dofmt(&f, fmt);
+ va_end(f.args);
*(Rune*)f.to = '\0';
return (Rune*)f.to - buf;
}
(DIR) diff --git a/src/lib9/fmt/sprint.c b/src/lib9/fmt/sprint.c
t@@ -18,10 +18,19 @@ int
sprint(char *buf, char *fmt, ...)
{
int n;
+ uint len;
va_list args;
+ len = 1<<30; /* big number, but sprint is deprecated anyway */
+ /*
+ * on PowerPC, the stack is near the top of memory, so
+ * we must be sure not to overflow a 32-bit pointer.
+ */
+ if(buf+len < buf)
+ len = -(uint)buf-1;
+
va_start(args, fmt);
- n = vsnprint(buf, 65536, fmt, args); /* big number, but sprint is deprecated anyway */
+ n = vsnprint(buf, len, fmt, args);
va_end(args);
return n;
}
(DIR) diff --git a/src/lib9/fmt/vfprint.c b/src/lib9/fmt/vfprint.c
t@@ -23,8 +23,9 @@ vfprint(int fd, char *fmt, va_list args)
int n;
fmtfdinit(&f, fd, buf, sizeof(buf));
- f.args = args;
+ va_copy(f.args,args);
n = dofmt(&f, fmt);
+ va_end(f.args);
if(n > 0 && __fmtFdFlush(&f) == 0)
return -1;
return n;
(DIR) diff --git a/src/lib9/fmt/vseprint.c b/src/lib9/fmt/vseprint.c
t@@ -29,8 +29,9 @@ vseprint(char *buf, char *e, char *fmt, va_list args)
f.flush = 0;
f.farg = nil;
f.nfmt = 0;
- f.args = args;
+ va_copy(f.args,args);
dofmt(&f, fmt);
+ va_end(f.args);
*(char*)f.to = '\0';
return (char*)f.to;
}
(DIR) diff --git a/src/lib9/fmt/vsmprint.c b/src/lib9/fmt/vsmprint.c
t@@ -27,8 +27,9 @@ vsmprint(char *fmt, va_list args)
if(fmtstrinit(&f) < 0)
return nil;
- f.args = args;
+ va_copy(f.args,args);
n = dofmt(&f, fmt);
+ va_end(f.args);
if(n < 0)
return nil;
return fmtstrflush(&f);
(DIR) diff --git a/src/lib9/fmt/vsnprint.c b/src/lib9/fmt/vsnprint.c
t@@ -20,6 +20,7 @@ int
vsnprint(char *buf, int len, char *fmt, va_list args)
{
Fmt f;
+ int x = 0;
if(len <= 0)
return -1;
t@@ -30,8 +31,9 @@ vsnprint(char *buf, int len, char *fmt, va_list args)
f.flush = 0;
f.farg = nil;
f.nfmt = 0;
- f.args = args;
+ va_copy(f.args,args);
dofmt(&f, fmt);
+ va_end(f.args);
*(char*)f.to = '\0';
return (char*)f.to - buf;
}
(DIR) diff --git a/src/libbio/bprint.c b/src/libbio/bprint.c
t@@ -11,9 +11,10 @@ Bprint(Biobuf *bp, char *fmt, ...)
if(Bfmtinit(&f, bp) < 0)
return -1;
va_start(args, fmt);
- f.args = args;
+ va_copy(f.args, args);
n = dofmt(&f, fmt);
va_end(args);
+ va_end(f.args);
if(n > 0 && Bfmtflush(&f) < 0)
return -1;
return n;
(DIR) diff --git a/src/libthread/label.h b/src/libthread/label.h
t@@ -40,6 +40,21 @@ struct Label
ulong sp; /* %o6 */
ulong link; /* %o7 */
};
+#elif defined(__powerpc__)
+struct Label
+{
+ ulong pc; /* lr */
+ ulong cr; /* mfcr */
+ ulong ctr; /* mfcr */
+ ulong xer; /* mfcr */
+ ulong sp; /* callee saved: r1 */
+ ulong toc; /* callee saved: r2 */
+ ulong gpr[19]; /* callee saved: r13-r31 */
+// XXX: currently do not save vector registers or floating-point state
+// ulong pad;
+// uvlong fpr[18]; /* callee saved: f14-f31 */
+// ulong vr[4*12]; /* callee saved: v20-v31, 256-bits each */
+};
#else
#error "Unknown or unsupported architecture"
#endif
(DIR) diff --git a/src/libthread/mkfile b/src/libthread/mkfile
t@@ -53,6 +53,7 @@ trend: trend.$O $PLAN9/lib/$LIB
CLEANFILES=$CLEANFILES tprimes texec
+asm-Linux-ppc.$O: asm-Linux-386.s
asm-Linux-386.$O: asm-FreeBSD-386.s
asm-NetBSD-386.$O: asm-FreeBSD-386.s
asm-OpenBSD-386.$O: asm-FreeBSD-386.s
(DIR) diff --git a/src/mkhdr b/src/mkhdr
t@@ -1,5 +1,5 @@
SYSNAME=`uname`
-OBJTYPE=`uname -m | sed 's;i.86;386;; s;/.*;;; s; ;;g'`
+OBJTYPE=`uname -m | sed 's;i.86;386;; s;/.*;;; s; ;;g' | sed 's/ppc64/power/g' | sed 's/ppc/power/g'`
BIN=$PLAN9/bin
LIBDIR=$PLAN9/lib