diff --git a/ChangeLog.mips b/ChangeLog.mips index f92ae72e04..c3d305e550 100644 --- a/ChangeLog.mips +++ b/ChangeLog.mips @@ -1,3 +1,17 @@ +2012-02-10 Joseph Myers + + * sysdeps/mips/mips32/crti.S: New file, based on compiler output + for sysdeps/generic/initfini.c. + * sysdeps/mips/mips32/crtn.S: Likewise. + * sysdeps/mips/mips64/n32/crti.S: Likewise. + * sysdeps/mips/mips64/n32/crtn.S: Likewise. + * sysdeps/mips/mips64/n64/crti.S: Likewise. + * sysdeps/mips/mips64/n64/crtn.S: Likewise. + * sysdeps/mips/Makefile (CFLAGS-initfini.s): Remove variable. + (CFLAGS-pt-initfini.s): Likewise. + (CPPFLAGS-crti.S, CPPFLAGS-crtn.S, CPPFLAGS-pt-crti.S): Define + variables. + 2012-01-26 Joseph Myers * sysdeps/mips/sys/asm.h: Remove __STDC__ conditionals. diff --git a/sysdeps/mips/Makefile b/sysdeps/mips/Makefile index 7937d25dcf..a1526998e0 100644 --- a/sysdeps/mips/Makefile +++ b/sysdeps/mips/Makefile @@ -16,11 +16,13 @@ CFLAGS-backtrace.c += -funwind-tables endif ifeq ($(subdir),csu) -CFLAGS-initfini.s += -fno-unwind-tables +CPPFLAGS-crti.S += $(pic-ccflag) +CPPFLAGS-crtn.S += $(pic-ccflag) endif ifeq ($(subdir),nptl) -CFLAGS-pt-initfini.s += -fno-unwind-tables +CPPFLAGS-pt-crti.S += $(pic-ccflag) +CPPFLAGS-crtn.S += $(pic-ccflag) endif ASFLAGS-.os += $(pic-ccflag) diff --git a/sysdeps/mips/mips32/crti.S b/sysdeps/mips/mips32/crti.S new file mode 100644 index 0000000000..1c7e95d4dd --- /dev/null +++ b/sysdeps/mips/mips32/crti.S @@ -0,0 +1,92 @@ +/* Special .init and .fini section support for MIPS (o32). + Copyright (C) 1995-2012 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 + +#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 + .p2align 2 + .globl _init + .type _init, @function +_init: + .set noreorder + .cpload $25 + .set reorder + addiu $sp,$sp,-32 + .cprestore 16 + sw $31,28($sp) +#if PREINIT_FUNCTION_WEAK + lw $2,%got(PREINIT_FUNCTION)($28) + beq $2,$0,.Lno_weak_fn + lw $25,%call16(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +.Lno_weak_fn: +#else + lw $25,%got(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +#endif + + .section .fini,"ax",@progbits + .p2align 2 + .globl _fini + .type _fini, @function +_fini: + .set noreorder + .cpload $25 + .set reorder + addiu $sp,$sp,-32 + .cprestore 16 + sw $31,28($sp) diff --git a/sysdeps/mips/mips32/crtn.S b/sysdeps/mips/mips32/crtn.S new file mode 100644 index 0000000000..9fb564d46a --- /dev/null +++ b/sysdeps/mips/mips32/crtn.S @@ -0,0 +1,56 @@ +/* Special .init and .fini section support for MIPS (o32). + Copyright (C) 1995-2012 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 + lw $31,28($sp) + .set noreorder + .set nomacro + j $31 + addiu $sp,$sp,32 + .set macro + .set reorder + + .section .fini,"ax",@progbits + lw $31,28($sp) + .set noreorder + .set nomacro + j $31 + addiu $sp,$sp,32 + .set macro + .set reorder diff --git a/sysdeps/mips/mips64/n32/crti.S b/sysdeps/mips/mips64/n32/crti.S new file mode 100644 index 0000000000..92b00c20e4 --- /dev/null +++ b/sysdeps/mips/mips64/n32/crti.S @@ -0,0 +1,92 @@ +/* Special .init and .fini section support for MIPS (n32). + Copyright (C) 1995-2012 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 + +#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 + .p2align 2 + .globl _init + .type _init, @function +_init: + addiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_init))) + addu $28,$28,$25 + sd $31,8($sp) + addiu $28,$28,%lo(%neg(%gp_rel(_init))) +#if PREINIT_FUNCTION_WEAK + lw $2,%got_disp(PREINIT_FUNCTION)($28) + beq $2,$0,.Lno_weak_fn + lw $25,%call16(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +.Lno_weak_fn: +#else + lw $25,%got_disp(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +#endif + + .section .fini,"ax",@progbits + .p2align 2 + .globl _fini + .type _fini, @function +_fini: + addiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_fini))) + addu $28,$28,$25 + sd $31,8($sp) + addiu $28,$28,%lo(%neg(%gp_rel(_fini))) diff --git a/sysdeps/mips/mips64/n32/crtn.S b/sysdeps/mips/mips64/n32/crtn.S new file mode 100644 index 0000000000..376582a696 --- /dev/null +++ b/sysdeps/mips/mips64/n32/crtn.S @@ -0,0 +1,58 @@ +/* Special .init and .fini section support for MIPS (n32). + Copyright (C) 1995-2012 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 + ld $31,8($sp) + ld $28,0($sp) + .set noreorder + .set nomacro + j $31 + addiu $sp,$sp,16 + .set macro + .set reorder + + .section .fini,"ax",@progbits + ld $31,8($sp) + ld $28,0($sp) + .set noreorder + .set nomacro + j $31 + addiu $sp,$sp,16 + .set macro + .set reorder diff --git a/sysdeps/mips/mips64/n64/crti.S b/sysdeps/mips/mips64/n64/crti.S new file mode 100644 index 0000000000..42b26dc2b5 --- /dev/null +++ b/sysdeps/mips/mips64/n64/crti.S @@ -0,0 +1,92 @@ +/* Special .init and .fini section support for MIPS (n64). + Copyright (C) 1995-2012 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 + +#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 + .p2align 2 + .globl _init + .type _init, @function +_init: + daddiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_init))) + daddu $28,$28,$25 + sd $31,8($sp) + daddiu $28,$28,%lo(%neg(%gp_rel(_init))) +#if PREINIT_FUNCTION_WEAK + ld $2,%got_disp(PREINIT_FUNCTION)($28) + beq $2,$0,.Lno_weak_fn + ld $25,%call16(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +.Lno_weak_fn: +#else + ld $25,%got_disp(PREINIT_FUNCTION)($28) + .reloc 1f,R_MIPS_JALR,PREINIT_FUNCTION +1: jalr $25 +#endif + + .section .fini,"ax",@progbits + .p2align 2 + .globl _fini + .type _fini, @function +_fini: + daddiu $sp,$sp,-16 + sd $28,0($sp) + lui $28,%hi(%neg(%gp_rel(_fini))) + daddu $28,$28,$25 + sd $31,8($sp) + daddiu $28,$28,%lo(%neg(%gp_rel(_fini))) diff --git a/sysdeps/mips/mips64/n64/crtn.S b/sysdeps/mips/mips64/n64/crtn.S new file mode 100644 index 0000000000..3f901c8c99 --- /dev/null +++ b/sysdeps/mips/mips64/n64/crtn.S @@ -0,0 +1,58 @@ +/* Special .init and .fini section support for MIPS (n64). + Copyright (C) 1995-2012 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 + ld $31,8($sp) + ld $28,0($sp) + .set noreorder + .set nomacro + j $31 + daddiu $sp,$sp,16 + .set macro + .set reorder + + .section .fini,"ax",@progbits + ld $31,8($sp) + ld $28,0($sp) + .set noreorder + .set nomacro + j $31 + daddiu $sp,$sp,16 + .set macro + .set reorder