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authorUlrich Drepper <drepper@redhat.com>2000-05-05 16:49:44 +0000
committerUlrich Drepper <drepper@redhat.com>2000-05-05 16:49:44 +0000
commitf1d86a931b2c51a24540e7ea3cda60dc154e064a (patch)
treec37912be8d04d08531989f4fb76bce5f18052270 /sysdeps/unix/sysv/linux/ia64/sysdep.h
parenta6fe55da9a6f5dfd05247938233a55675cb842c8 (diff)
Update.
2000-05-05 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h: New file. * sysdeps/unix/sysv/linux/ia64/syscall.S: New file. * sysdeps/unix/sysv/linux/ia64/bits/types.h: New file. * sysdeps/unix/sysv/linux/ia64/bits/endian.h: New file. * sysdeps/ia64/Implies: New file. * sysdeps/ia64/Versions: New file. Declare _dl_symbol_address. * sysdeps/ia64/Makefile: New file. * sysdeps/ia64/gmp-mparam.h: New file, * sysdeps/ia64/elf/start.S: New file. * sysdeps/ia64/bits/fenv.h: New file. 2000-05-05 David Mosberger-Tang <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.S: New file. 2000-04-26 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/unix/sysv/linux/ia64/bits/elfclass.h: New file. The ia64 has 64 bit .hash entries just as the Alpha. 2000-04-25 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/memprof.h: New file. Provide GETSP() macro. 2000-04-17 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/fpu/fclrexcpt.c: New file. * sysdeps/ia64/fpu/fedisblxcpt.c: New file. * sysdeps/ia64/fpu/feenablxcpt.c: New file. * sysdeps/ia64/fpu/fegetenv.c: New file. * sysdeps/ia64/fpu/fegetexcept.c: New file. * sysdeps/ia64/fpu/fegetround.c: New file. * sysdeps/ia64/fpu/feholdexcpt.c: New file. * sysdeps/ia64/fpu/fesetenv.c: New file. * sysdeps/ia64/fpu/fesetround.c: New file. * sysdeps/ia64/fpu/feupdateenv.c: New file. * sysdeps/ia64/fpu/fgetexcptflg.c: New file. * sysdeps/ia64/fpu/fraiseexcpt.c: New file. * sysdeps/ia64/fpu/fsetexcptflg.c: New file. * sysdeps/ia64/fpu/ftestexcept.c: New file. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h (_DL_HWCAP_COUNT): New.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/sysdep.h')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sysdep.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h
new file mode 100644
index 0000000000..6901d5e38e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h
@@ -0,0 +1,99 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
+ Based on code originally written by David Mosberger-Tang
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sysdeps/unix/sysdep.h>
+
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#ifdef __STDC__
+# define SYS_ify(syscall_name) __NR_##syscall_name
+#else
+# define SYS_ify(syscall_name) __NR_/**/syscall_name
+#endif
+
+#ifdef __ASSEMBLER__
+
+/* Linux uses a negative return value to indicate syscall errors, unlike
+ most Unices, which use the condition codes' carry flag.
+
+ Since version 2.1 the return value of a system call might be negative
+ even if the call succeeded. E.g., the `lseek' system call might return
+ a large offset. Therefore we must not anymore test for < 0, but test
+ for a real error by making sure the value in %d0 is a real error
+ number. Linus said he will make sure the no syscall returns a value
+ in -1 .. -4095 as a valid result so we can savely test with -4095. */
+
+/* We don't want the label for the error handler to be visible in the symbol
+ table when we define it here. */
+#define SYSCALL_ERROR_LABEL __syscall_error
+
+#ifdef PROF
+#error "define CALL_MCOUNT"
+#else
+#define CALL_MCOUNT
+#endif
+
+
+#undef PSEUDO
+#define PSEUDO(name, syscall_name, args) \
+ ENTRY(name) \
+ DO_CALL (SYS_ify(syscall_name)); \
+ cmp.eq p6,p0=-1,r10;; \
+(p6) br.cond.spnt.few __syscall_error;
+
+#define ENTRY(name) \
+ .psr abi64; \
+ .psr lsb; \
+ .lsb; \
+ .proc C_SYMBOL_NAME(name); \
+ .text; \
+ .align 32; \
+ .proc C_SYMBOL_NAME(name); \
+ .global C_SYMBOL_NAME(name); \
+ C_LABEL(name) \
+ CALL_MCOUNT
+
+#define DO_CALL(num) \
+ mov r15=num; \
+ break __BREAK_SYSCALL;
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) .endp C_SYMBOL_NAME(name);
+
+#undef END
+#define END(name) \
+ .size C_SYMBOL_NAME(name), . - C_SYMBOL_NAME(name) ; \
+ .endp C_SYMBOL_NAME(name)
+
+#define ret br.ret.sptk.few b0
+
+#else /* not __ASSEMBLER__ */
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+#if 0
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __##name (args)
+#endif
+
+#endif /* not __ASSEMBLER__ */