Hi,
attached to this mail is a patch from a colleague that makes
PostgreSQL-7.0.2 run on Linux for the Intel-IA64 architecture. It also
fixes a bug in the configure scripts that caused configure to fail on
the fcntl(F_SETLK) test.
This fix triggered a bug in the fcntl(F_SETLK) code of the Linux
kernel when used on unix domain sockets resulting in postmaster to
segfault immediately after startup. There is a fix available and
included in the kernel that will be on SuSE Linux 7.0, but kernels <=
2.2.16 still have this bug.
Therefore we decided to disable the calls to fcntl(F_SETLK) in
src/backend/libpq/pqcomm.c as workarround for the PostgreSQL RPMs for
SuSE Linux which I am currently working on. The patch (hack) doing
this is also included.
Regards,
Reinhard Max
--
If you put garbage in a computer nothing comes out but garbage.
But this garbage, having passed through a very expensive machine,
is somehow enobled and none dare criticize it.
--- src/Makefile.shlib
+++ src/Makefile.shlib 2000/06/20 11:14:17
@@ -145,9 +145,9 @@
ifeq ($(PORTNAME), linux)
install-shlib-dep := install-shlib
shlib :=
lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
- LDFLAGS_SL := -Bdynamic -shared -soname $(shlib)
- LDFLAGS_ODBC := -Bsymbolic -lc -lm
- SHLIB_LINK += -lc
+ LD := $(CC)
+ LDFLAGS_SL := -shared -Wl,-soname,$(shlib)
+ LDFLAGS_ODBC := -nostartfiles -Wl,-Bsymbolic -lm
CFLAGS += $(CFLAGS_SL)
endif
--- src/configure
+++ src/configure 2000/06/20 09:18:25
@@ -4928,6 +4928,7 @@
cat > conftest.$ac_ext <<EOF
#line 4930 "configure"
#include "confdefs.h"
+#include <stdio.h>
#include <fcntl.h>
int main() {
struct flock lck;
--- src/configure.in
+++ src/configure.in 2000/06/20 09:17:54
@@ -786,7 +786,8 @@
AC_MSG_RESULT(no))
AC_MSG_CHECKING(for fcntl(F_SETLK))
-AC_TRY_LINK([#include <fcntl.h>],
+AC_TRY_LINK([#include <stdio.h>
+#include <fcntl.h>],
[struct flock lck;
lck.l_whence = SEEK_SET; lck.l_start = lck.l_len = 0;
lck.l_type = F_WRLCK;
--- src/include/port/linux.h
+++ src/include/port/linux.h 2000/06/20 09:35:00
@@ -33,7 +33,12 @@
#define HAS_TEST_AND_SET
#elif defined(__arm__)
-typedef unsigned char slock_t
+typedef unsigned char slock_t;
+
+#define HAS_TEST_AND_SET
+
+#elif defined(__ia64__)
+typedef unsigned int slock_t;
#define HAS_TEST_AND_SET
--- src/include/storage/s_lock.h
+++ src/include/storage/s_lock.h 2000/06/20 09:40:50
@@ -95,6 +95,24 @@
#endif /* __i386__ */
+#ifdef __ia64__
+#define TAS(lock) tas(lock)
+
+static __inline__ int
+tas (volatile slock_t *lock)
+{
+ long int ret;
+
+ __asm__ __volatile__(
+ "xchg4 %0=%1,%2"
+ : "=r"(ret), "=m"(*lock)
+ : "r"(1), "1"(*lock)
+ : "memory");
+
+ return (int) ret;
+}
+#endif /* __ia64__ */
+
#if defined(__arm__) || defined(__arm__)
#define TAS(lock) tas(lock)
--- src/backend/libpq/pqcomm.c
+++ src/backend/libpq/pqcomm.c 2000/07/03 08:47:43
@@ -75,6 +75,12 @@
#include "postgres.h"
#include "libpq/libpq.h"
+
+/* Hack for broken fcntl(F_SETLK) in Linux Kernels < 2.2.16 */
+#ifdef HAVE_FCNTL_SETLK
+#undef HAVE_FCNTL_SETLK
+#endif
+
#include "utils/trace.h" /* needed for HAVE_FCNTL_SETLK */
#include "miscadmin.h"
