diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/elf')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/elf/bzero.S | 21 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/elf/start.S | 66 |
2 files changed, 87 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/elf/bzero.S b/sysdeps/powerpc/powerpc64/elf/bzero.S new file mode 100644 index 0000000000..f899bd234e --- /dev/null +++ b/sysdeps/powerpc/powerpc64/elf/bzero.S @@ -0,0 +1,21 @@ +/* Optimized bzero `implementation' for PowerPC64. + Copyright (C) 1997, 1999, 2000, 2002 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. + + 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 code was moved into memset.S to solve a double stub call problem. + @local would have worked but it is not supported in PowerPC64 asm. */ diff --git a/sysdeps/powerpc/powerpc64/elf/start.S b/sysdeps/powerpc/powerpc64/elf/start.S new file mode 100644 index 0000000000..129f126e9d --- /dev/null +++ b/sysdeps/powerpc/powerpc64/elf/start.S @@ -0,0 +1,66 @@ +/* Startup code for programs linked with GNU libc. PowerPC64 version. + Copyright (C) 1998, 1999, 2000, 2001, 2002 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. + + 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. */ + +#include <sysdep.h> +#include "bp-sym.h" + + /* These are the various addresses we require. */ + .section ".rodata" + .align 3 + weak_extern(_init) + weak_extern(_fini) + weak_extern(._init) + weak_extern(._fini) +L(start_addresses): + .quad 0 /* was _SDA_BASE_ but not in 64-bit ABI*/ +/* function descriptors so don't need JUMPTARGET */ + .quad BP_SYM(main) + .quad _init + .quad _fini + + ASM_SIZE_DIRECTIVE(L(start_addresses)) + + .section ".toc","aw" +.L01: + .tc L(start_addresses)[TC],L(start_addresses) + .section ".text" +ENTRY(_start) + /* Save the stack pointer, in case we're statically linked under Linux. */ + mr r9,r1 + /* Set up an initial stack frame, and clear the LR. */ + clrrdi r1,r1,4 + li r0,0 + stdu r1,-128(r1) + mtlr r0 + std r0,0(r1) + + /* put the address of start_addresses in r8... ** +** PPC64 ABI uses R13 for thread local, so we leave it alone */ + ld r8,.L01(r2) + + /* and continue in libc-start, in glibc. */ + b JUMPTARGET(BP_SYM(__libc_start_main)) + +END(_start) + +/* Define a symbol for the first piece of initialized data. */ + .section ".data" + .globl __data_start +__data_start: +weak_alias (__data_start, data_start) |