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Hi!
GCC 3.2 doesn't like asm ("" : "=" "r" (something)); (while GCC 3.3+ does).
The following patch fixes this by putting = into the constraint.
The linuxthreads Makefile is something I needed to make libpthread.so to
build on Alpha.
2003-01-06 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/alpha/sysdep.h
(inline_syscall_r0_constraint): Rename to...
(inline_syscall_r0_out_constraint): ... this. Add =.
(inline_syscall[0-6]): Use inline_syscall_r0_out_constraint
instead of "=" inline_syscall_r0_constraint.
linuxthreads/
* sysdeps/unix/sysv/linux/alpha/Makefile: New file.
--- libc/sysdeps/unix/sysv/linux/alpha/sysdep.h.jj 2003-01-05 22:08:49.000000000 +0100
+++ libc/sysdeps/unix/sysv/linux/alpha/sysdep.h 2003-01-06 01:07:33.000000000 +0100
@@ -1,4 +1,5 @@
-/* Copyright (C) 1992, 1993, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1993, 1995, 1996, 1997, 2002, 2003
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
@@ -100,10 +101,10 @@
#ifdef USE_TLS
#define inline_syscall_r0_asm
-#define inline_syscall_r0_constraint "v"
+#define inline_syscall_r0_out_constraint "=v"
#else
-#define inline_syscall_r0_asm __asm__("$0")
-#define inline_syscall_r0_constraint "r"
+#define inline_syscall_r0_asm __asm__("$0")
+#define inline_syscall_r0_out_constraint "=r"
#endif
/* It is moderately important optimization-wise to limit the lifetime
@@ -117,7 +118,7 @@
\
_sc_0 = __NR_##name; \
__asm__("callsys # %0 %1 <= %2" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19) \
: "0"(_sc_0) \
: inline_syscall_clobbers, \
@@ -134,7 +135,7 @@
_sc_0 = __NR_##name; \
_sc_16 = (long) (arg1); \
__asm__("callsys # %0 %1 <= %2 %3" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19), "=r"(_sc_16) \
: "0"(_sc_0), "2"(_sc_16) \
: inline_syscall_clobbers, \
@@ -153,7 +154,7 @@
_sc_16 = (long) (arg1); \
_sc_17 = (long) (arg2); \
__asm__("callsys # %0 %1 <= %2 %3 %4" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17) \
: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17) \
: inline_syscall_clobbers, \
@@ -174,7 +175,7 @@
_sc_17 = (long) (arg2); \
_sc_18 = (long) (arg3); \
__asm__("callsys # %0 %1 <= %2 %3 %4 %5" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \
"=r"(_sc_18) \
: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
@@ -197,7 +198,7 @@
_sc_18 = (long) (arg3); \
_sc_19 = (long) (arg4); \
__asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \
"=r"(_sc_18) \
: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
@@ -222,7 +223,7 @@
_sc_19 = (long) (arg4); \
_sc_20 = (long) (arg5); \
__asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17), \
"=r"(_sc_18), "=r"(_sc_20) \
: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
@@ -249,7 +250,7 @@
_sc_20 = (long) (arg5); \
_sc_21 = (long) (arg6); \
__asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8" \
- : "=" inline_syscall_r0_constraint (_sc_0), \
+ : inline_syscall_r0_out_constraint (_sc_0), \
"=r"(_sc_19) "=r"(_sc_16), "=r"(_sc_17), \
"=r"(_sc_18), "=r"(_sc_20), "=r"(_sc_21) \
: "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), \
--- libc/linuxthreads/sysdeps/unix/sysv/linux/alpha/Makefile.jj 2003-01-05 22:08:49.000000000 +0100
+++ libc/linuxthreads/sysdeps/unix/sysv/linux/alpha/Makefile 2003-01-06 01:07:33.000000000 +0100
@@ -0,0 +1,3 @@
+ifeq ($(subdir),linuxthreads)
+libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask ptw-osf_sigprocmask
+endif
Jakub
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