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SH crti/crtn (Was: Arch maintainers: new approach for crti.o andcrtn.o)
- From: Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>
- To: libc-alpha at sourceware dot org
- Date: Thu, 09 Feb 2012 12:25:25 +0900 (JST)
- Subject: SH crti/crtn (Was: Arch maintainers: new approach for crti.o andcrtn.o)
- References: <Pine.LNX.4.64.1202080145470.4538@digraph.polyomino.org.uk>
Hi,
"Joseph S. Myers" <joseph@codesourcery.com> wrote:
> The deadline for the conversion, after which the transitional support for
> the old mechanism is expected to be removed, is 1 April (it may be removed
> before then if all libc architectures are converted sooner).
Here is the SH version of crt?.S support.
Regards,
kaz
--
2012-02-09 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/crti.S, sysdeps/sh/crtn.S: New files, based on
compiler output for sysdeps/generic/initfini.c.
* sysdeps/sh/elf/initfini.c: Remove file.
nptl/
2012-02-09 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/pt-initfini.c: Remove file.
diff --git a/sysdeps/sh/crti.S b/sysdeps/sh/crti.S
new file mode 100644
index 0000000..62b6c1c
--- /dev/null
+++ b/sysdeps/sh/crti.S
@@ -0,0 +1,121 @@
+/* Special .init and .fini section support for SH.
+ Copyright (C) 2000-2012 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser 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 GNU Lesser 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.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* 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. The symbols _init and _fini are
+ magic and cause the linker to emit DT_INIT and DT_FINI. */
+
+#include <libc-symbols.h>
+#include <sysdep.h>
+
+#ifndef PREINIT_FUNCTION
+# define PREINIT_FUNCTION __gmon_start__
+#endif
+
+#ifndef PREINIT_FUNCTION_WEAK
+# define PREINIT_FUNCTION_WEAK 1
+#endif
+
+#if PREINIT_FUNCTION_WEAK
+ weak_extern (PREINIT_FUNCTION)
+#else
+ .hidden PREINIT_FUNCTION
+#endif
+
+ .section .init,"ax",@progbits
+ .align 5
+ .global _init
+ .type _init, @function
+_init:
+ mov.l r12,@-r15
+ mova .L12,r0
+ mov.l .L12,r12
+ mov.l r14,@-r15
+ add r0,r12
+ sts.l pr,@-r15
+#if PREINIT_FUNCTION_WEAK
+ mov.l .L13,r0
+ mov.l @(r0,r12),r1
+ tst r1,r1
+ bt/s .L8
+ mov r15,r14
+ mov.l .L14,r1
+ bsrf r1
+.LPCS0:
+ nop
+.L8:
+#else
+ mova .L13,r0
+ mov.l .L13,r1
+ add r0,r1
+ jsr @r1
+ mov r15,r14
+#endif
+ bra 1f
+ nop
+ .align 2
+.L12:
+ .long _GLOBAL_OFFSET_TABLE_
+#if PREINIT_FUNCTION_WEAK
+.L13:
+ .long PREINIT_FUNCTION@GOT
+.L14:
+ .long PREINIT_FUNCTION@PLT-(.LPCS0+2-(.))
+#else
+.L13:
+ .long PREINIT_FUNCTION@PLT
+#endif
+1:
+
+ .section .fini,"ax",@progbits
+ .align 5
+ .global _fini
+ .type _fini, @function
+_fini:
+ mov.l r12,@-r15
+ mova .L19,r0
+ mov.l r14,@-r15
+ sts.l pr,@-r15
+ mov.l .L19,r12
+ mov r15,r14
+ add r0,r12
+ bra 0f
+ nop
+ .align 2
+.L19:
+ .long _GLOBAL_OFFSET_TABLE_
+0:
diff --git a/sysdeps/sh/crtn.S b/sysdeps/sh/crtn.S
new file mode 100644
index 0000000..d33c378
--- /dev/null
+++ b/sysdeps/sh/crtn.S
@@ -0,0 +1,54 @@
+/* Special .init and .fini section support for SH.
+ Copyright (C) 2000-2012 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser 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 GNU Lesser 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.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* crtn.S puts function epilogues in the .init and .fini sections
+ corresponding to the prologues in crti.S. */
+
+ .section .init,"ax",@progbits
+ mov r14,r15
+ lds.l @r15+,pr
+ mov.l @r15+,r14
+ mov.l @r15+,r12
+ rts
+ nop
+
+ .section .fini,"ax",@progbits
+ mov r14,r15
+ lds.l @r15+,pr
+ mov.l @r15+,r14
+ mov.l @r15+,r12
+ rts
+ nop
diff --git a/sysdeps/sh/elf/initfini.c b/sysdeps/sh/elf/initfini.c
deleted file mode 100644
index 2ae328c..0000000
--- a/sysdeps/sh/elf/initfini.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* Special .init and .fini section support for SH.
- Copyright (C) 2000, 2002, 2009 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- In addition to the permissions in the GNU Lesser 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 GNU Lesser 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.)
-
- Note that people who make modified versions of this file are not
- obligated to grant this special exception for their modified
- versions; it is their choice whether to do so. The GNU Lesser
- General Public License gives permission to release a modified
- version without this exception; this exception also makes it
- possible to release a modified version which carries forward this
- exception.
-
- 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 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__ ("\
-\n\
-#include \"defs.h\"\n\
-\n\
-/*@HEADER_ENDS*/\n\
-\n\
-/*@TESTS_BEGIN*/\n\
- .align 5\n\
-/*@TESTS_END*/\n\
-\n\
-/*@_init_PROLOG_BEGINS*/\n\
- .section .init,\"ax\",@progbits\n\
- .align 5\n\
- .global _init\n\
- .type _init, @function\n\
-_init:\n\
- mov.l r12,@-r15\n\
- mova .L12,r0\n\
- mov.l .L12,r12\n\
- mov.l r14,@-r15\n\
- add r0,r12\n\
- mov.l .L13,r0\n\
- sts.l pr,@-r15\n\
- mov.l @(r0,r12),r1\n\
- tst r1,r1\n\
- bt/s .L8\n\
- mov r15,r14\n\
- mov.l .L14,r1\n\
- bsrf r1\n\
-.LPCS0:\n\
- nop\n\
-.L8:\n\
- bra 1f\n\
- nop\n\
- .align 2\n\
-.L12:\n\
- .long _GLOBAL_OFFSET_TABLE_\n\
-.L13:\n\
- .long __gmon_start__@GOT\n\
-.L14:\n\
- .long __gmon_start__@PLT-(.LPCS0+2-(.))\n\
-1:\n\
- ALIGN\n\
- END_INIT\n\
-\n\
-/*@_init_PROLOG_ENDS*/\n\
-\n\
-/*@_init_EPILOG_BEGINS*/\n\
- .section .init\n\
- mov r14,r15\n\
- lds.l @r15+,pr\n\
- mov.l @r15+,r14\n\
- mov.l @r15+,r12\n\
- rts \n\
- nop\n\
- END_INIT\n\
-\n\
-/*@_init_EPILOG_ENDS*/\n\
-\n\
-/*@_fini_PROLOG_BEGINS*/\n\
- .section .fini,\"ax\",@progbits\n\
- .align 5\n\
- .global _fini\n\
- .type _fini, @function\n\
-_fini:\n\
- mov.l r12,@-r15\n\
- mova .L19,r0\n\
- mov.l r14,@-r15\n\
- sts.l pr,@-r15\n\
- mov.l .L19,r12\n\
- mov r15,r14\n\
- add r0,r12\n\
- bra 0f\n\
- nop\n\
- .align 2\n\
-.L19:\n\
- .long _GLOBAL_OFFSET_TABLE_\n\
-0:\n\
- ALIGN\n\
- END_FINI\n\
-\n\
-/*@_fini_PROLOG_ENDS*/\n\
- mov.l .L20,r1\n\
- bsrf r1\n\
-.LPCS1:\n\
- nop\n\
- bra 1f\n\
- nop\n\
- .align 2\n\
-.L20:\n\
- .long i_am_not_a_leaf@PLT-(.LPCS1+2-(.))\n\
-1:\n\
-/*@_fini_EPILOG_BEGINS*/\n\
- .section .fini\n\
- mov r14,r15\n\
- lds.l @r15+,pr\n\
- mov.l @r15+,r14\n\
- mov.l @r15+,r12\n\
- rts \n\
- nop\n\
- END_FINI\n\
-\n\
-/*@_fini_EPILOG_ENDS*/\n\
-\n\
-/*@TRAILER_BEGINS*/\n\
- .weak __gmon_start__\n\
-");
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pt-initfini.c b/nptl/sysdeps/unix/sysv/linux/sh/pt-initfini.c
deleted file mode 100644
index 82c97c3..0000000
--- a/nptl/sysdeps/unix/sysv/linux/sh/pt-initfini.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Special .init and .fini section support for SH. NPTL version.
- Copyright (C) 2003, 2009 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__ ("\n\
-\n\
-#include \"defs.h\"\n\
-\n\
-/*@HEADER_ENDS*/\n\
-\n\
-/*@TESTS_BEGIN*/\n\
-\n\
-/*@TESTS_END*/\n\
-\n\
-/*@_init_PROLOG_BEGINS*/\n\
- .section .init\n\
- .align 5\n\
- .global _init\n\
- .type _init,@function\n\
-_init:\n\
- mov.l r12,@-r15\n\
- mov.l r14,@-r15\n\
- sts.l pr,@-r15\n\
- mova .L22,r0\n\
- mov.l .L22,r12\n\
- add r0,r12\n\
- mova .L24,r0\n\
- mov.l .L24,r1\n\
- add r0,r1\n\
- jsr @r1\n\
- mov r15,r14\n\
- bra 1f\n\
- nop\n\
- .align 2\n\
-.L22:\n\
- .long _GLOBAL_OFFSET_TABLE_\n\
-.L24:\n\
- .long __pthread_initialize_minimal_internal@PLT\n\
-1:\n\
- ALIGN\n\
- END_INIT\n\
-\n\
-/*@_init_PROLOG_ENDS*/\n\
-\n\
-/*@_init_EPILOG_BEGINS*/\n\
- .section .init\n\
- mov r14,r15\n\
- lds.l @r15+,pr\n\
- mov.l @r15+,r14\n\
- rts \n\
- mov.l @r15+,r12\n\
- END_INIT\n\
- \n\
-/*@_init_EPILOG_ENDS*/\n\
-\n\
-/*@_fini_PROLOG_BEGINS*/\n\
- .section .fini\n\
- .align 5\n\
- .global _fini\n\
- .type _fini,@function\n\
-_fini:\n\
- mov.l r12,@-r15\n\
- mov.l r14,@-r15\n\
- sts.l pr,@-r15\n\
- mova .L27,r0\n\
- mov.l .L27,r12\n\
- add r0,r12\n\
- mov r15,r14\n\
- ALIGN\n\
- END_FINI\n\
- bra 1f\n\
- nop\n\
- .align 2\n\
-.L27:\n\
- .long _GLOBAL_OFFSET_TABLE_\n\
-1:\n\
-/*@_fini_PROLOG_ENDS*/\n\
-\n\
-/*@_fini_EPILOG_BEGINS*/\n\
- .section .fini\n\
- mov r14,r15\n\
- lds.l @r15+,pr\n\
- mov.l @r15+,r14\n\
- rts \n\
- mov.l @r15+,r12\n\
-\n\
- END_FINI\n\
- \n\
-/*@_fini_EPILOG_ENDS*/\n\
-\n\
-/*@TRAILER_BEGINS*/\n\
-");