+2000-07-31 Jes Sorensen <jes@linuxcare.com>
+
+ * sysdeps/ia64/elf/initfini.c: Kill dummy section since align and
+ endp statements have already been added.
+
+2000-04-18 David Mosberger <davidm@hpl.hp.com>
+
+ * sysdeps/unix/sysv/linux/ia64/sysdep.h: Include
+ <sysdeps/ia64/sysdep.h>.
+
+ * sysdeps/ia64/_mcount.S: New file.
+
+ * sysdeps/ia64/elf/initfini.c (_init): Preserve gp around call to
+ __gmon_start__. Fix up extraneous whitespace.
+
+2000-01-12 H.J. Lu <hjl@gnu.org>
+
+ * sysdeps/ia64/elf/initfini.c: New file.
+
+2000-07-31 Jes Sorensen <jes@linuxcare.com>
+
+ * sysdeps/unix/sysv/linux/ia64/clone.S: Add stop bit to avoid WAW
+ dependency between branch and ar.pfs write.
+
2000-07-31 H.J. Lu <hjl@gnu.org>
* sysdeps/generic/printf_fphex.c (__printf_fphex): Correctly
--- /dev/null
+/* Machine-specific calling sequence for `mcount' profiling function. ia64
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ Contributed by David Mosberger <davidm@hpl.hp.com>
+ This file is part of the GNU C Library.
+
+ 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. */
+
+/* Assembly stub to invoke _mcount(). Compiler generated code calls
+ this stub before executing a function's prologue and without saving
+ any registers. It is therefore necessary to preserve the input
+ registers as they may contain function arguments. To work
+ correctly with frame-less functions, it is also necessary to
+ preserve the return pointer (b0 aka rp).
+
+ State upon entering _mcount:
+
+ r8 address of return value structure (used only when called
+ function returns a large structure)
+ r15 static link (used only for nested functions)
+ in0 ar.pfs to restore before returning to the function that
+ called _mcount
+ in1 gp value to restore before returning to the function that
+ called _mcount
+ in2 return address in the function that invoked the caller
+ of _mcount (frompc)
+ in3 address of the global-offset table entry that holds the
+ profile count dword allocated by the compiler; to get
+ the address of this dword, use "ld8 in2=[in2]; this
+ dword can be used in any way by _mcount (including
+ not at all, as is the case with the current implementation)
+ b0 address to return to after _mcount is done
+*/
+
+#include <sysdep.h>
+
+#undef ret
+
+ .psr abi64
+ .psr lsb
+ .lsb
+
+LEAF(_mcount)
+ alloc loc0 = ar.pfs, 4, 4, 3, 0
+ mov loc1 = rp
+ mov loc2 = r8 // gcc uses r8 to pass pointer to return structure
+ ;;
+ mov loc3 = r15 // gcc uses r15 to pass the static link to nested functions
+ mov out0 = in2
+ mov out1 = rp
+ br.call.sptk.few rp = __mcount_internal
+ ;;
+.here:
+{
+ .mii
+ mov gp = in1
+ mov r2 = ip
+ mov ar.pfs = loc0
+}
+ ;;
+ adds r2 = 1f - .here, r2
+ mov b7 = loc1
+ mov rp = in2
+ ;;
+ mov r8 = loc2
+ mov r15 = loc3
+ mov b6 = r2
+ br.ret.sptk.few b6
+
+1: alloc r2 = ar.pfs, 0, 0, 9, 0
+ mov ar.pfs = r40
+ br b7
+END(_mcount)
+
+weak_alias (_mcount, mcount)
--- /dev/null
+/* Special .init and .fini section support for ia64.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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.
+
+ In addition to the permissions in the GNU Library General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The Library General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ 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, 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* This file is compiled into assembly code which is then munged by a sed
+ script into two files: crti.s and crtn.s.
+
+ * crti.s puts a function prologue at the beginning of the
+ .init and .fini sections and defines global symbols for
+ those addresses, so they can be called as functions.
+
+ * crtn.s puts the corresponding function epilogues
+ in the .init and .fini sections. */
+
+__asm__ ("
+
+#include \"defs.h\"
+
+/*@HEADER_ENDS*/
+
+/*@_init_PROLOG_BEGINS*/
+ .section .init
+ .align 16
+ .global _init#
+ .proc _init#
+_init:
+ alloc r34 = ar.pfs, 0, 3, 0, 0
+ mov r32 = r12
+ mov r33 = b0
+ adds r12 = -16, r12
+ addl r14 = @ltoff(@fptr(__gmon_start__#)), gp
+ ;;
+ ld8 r15 = [r14]
+ ;;
+ cmp.eq p6, p7 = 0, r15
+ (p6) br.cond.dptk .L5
+
+/* we could use r35 to save gp, but we use the stack since that's what
+ * all the other init routines will do --davidm 00/04/05 */
+ st8 [r12] = gp, -16
+ br.call.sptk.many b0 = __gmon_start__# ;;
+ adds r12 = 16, r12
+ ;;
+ ld8 gp = [r12]
+ ;;
+.L5:
+ .align 16
+ .endp _init#
+
+/*@_init_PROLOG_ENDS*/
+
+/*@_init_EPILOG_BEGINS*/
+ .section .init
+ .regstk 0,2,0,0
+ mov r12 = r32
+ mov ar.pfs = r34
+ mov b0 = r33
+ br.ret.sptk.many b0
+ .endp _init#
+/*@_init_EPILOG_ENDS*/
+
+/*@_fini_PROLOG_BEGINS*/
+ .section .fini
+ .align 16
+ .global _fini#
+ .proc _fini#
+_fini:
+ alloc r34 = ar.pfs, 0, 3, 0, 0
+ mov r32 = r12
+ mov r33 = b0
+ adds r12 = -16, r12
+ ;;
+ .align 16
+ .endp _fini#
+
+/*@_fini_PROLOG_ENDS*/
+ br.call.sptk.many b0 = i_am_not_a_leaf# ;;
+ ;;
+
+/*@_fini_EPILOG_BEGINS*/
+ .section .fini
+ mov r12 = r32
+ mov ar.pfs = r34
+ mov b0 = r33
+ br.ret.sptk.many b0
+ .endp _fini#
+
+/*@_fini_EPILOG_ENDS*/
+
+/*@TRAILER_BEGINS*/
+ .weak __gmon_start__#
+");
--- /dev/null
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+ 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/generic/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+#define LEAF(name) \
+ .text; \
+ .align 32; \
+ .proc C_SYMBOL_NAME(name); \
+ .global name; \
+ C_LABEL(name)
+
+/* Mark the end of function SYM. */
+#undef END
+#define END(sym) .endp C_SYMBOL_NAME(sym)
+
+#endif /* ASSEMBLER */
mov ar.pfs = loc0
mov gp = loc1
mov r32 = r8 // exit value
+ ;;
br.call.sptk b0 = _exit // we're out of here
PSEUDO_END(__clone)
Boston, MA 02111-1307, USA. */
#include <sysdeps/unix/sysdep.h>
+#include <sysdeps/ia64/sysdep.h>
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
git://sourceware.org / glibc.git / commitdiff