[2] in Pthreads mailing list archive
Bug Report
daemon@ATHENA.MIT.EDU (Tie Liao)
Fri Jun 9 10:57:01 1995
Date: Fri, 9 Jun 1995 15:58:22 +0200
From: Tie Liao <Tie.Liao@inria.fr>
To: pthreads@MIT.EDU
Reply-To: Tie.Liao@inria.fr
Hi,
I am trying to use your pthread package in a C++ software
environment (multimedia project - MADE). I encountered some
problems that I'd like to report to you. The following is
my working environment:
Platform: Sun Sparc
OS: SunOS 4.1.3
Compiler: GCC 2.5.8
The problems are:
o in the file include/sys/stat.h, near the end,
__BEGIN_DECLS and __END_DECLS need to be added
for the function declarations. Without them, we may have
compilation problem for C++ programs.
o trouble with "extern inline" (in cdefs.h). try
#include <stdio.h>
main() { (void)getchar(); }
save it in g.c and g.cc, and compile them with pgcc
or pg++.
The result is that it's OK for g.c. But for g.cc, the
following error message is printed:
ld: Undefined symbol
___getc__FP7__sFILE
collect2: ld returned 2 exit status
I replaced "extern inline" with "inline" in cdefs.h,
both are OK. I am not sure this is the correct way.
o most syscalls are implemented by machine-dependent
instruction set using a template. An exception should
be the syscall "int pipe(fd[])". It is implemented
not correctly.
The difference is that the returned value of pipe syscall
is to be filled in fd[]. I patched the code to make
the pipe syscall work and put it in
machdep/syscall-sparc-sunos-4.1.3.S
It looks like
/* ==========================================================================
* machdep_sys_pipe()
*/
.globl _machdep_sys_pipe
_machdep_sys_pipe:
mov %o0, %o2
mov SYS_pipe, %g1
ta 0
bcs 1b
nop
st %o0, [ %o2 ]
st %o1, [ %o2 + 4 ]
retl
mov %g0, %o0
The big inconveniency is the recomplation of related libraries.
We can't safely use the X lib (X11R5) without recompilation.
For example, when I use X bitmaps in my test program, the
program crashes due to access to a (FILE *) in XRdBitF.c
through a macro getc(FILE *fp).
Besides the above probelms, the package works correctly. I'll
continue to use it.
Tie Liao
____________________________________________________________
Tie Liao email : Tie.Liao@inria.fr
INRIA, Domaine de Voluceau phone : (33-1) 39 63 59 76
Rocquencourt - BP 105 fax : (33-1) 39 63 51 14
78153 Le Chesnay Cedex, France
