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Diffstat (limited to 'sysdeps/cris/elf/start.S')
| -rw-r--r-- | sysdeps/cris/elf/start.S | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/sysdeps/cris/elf/start.S b/sysdeps/cris/elf/start.S deleted file mode 100644 index a3f85bcd01..0000000000 --- a/sysdeps/cris/elf/start.S +++ /dev/null @@ -1,141 +0,0 @@ -/* Startup code compliant to the ELF CRIS ABI (to-be-written). - Copyright (C) 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. - - 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. */ - -#include <sysdep.h> - -/* This is the canonical entry point, usually the first thing in the text - segment. When the entry point runs, most registers' values are - unspecified, except for: - - R10 Contains a function pointer to be registered with `atexit'. - This is how the dynamic linker arranges to have DT_FINI - functions called for shared libraries that have been loaded - before this code runs. - - SP The stack contains the arguments and environment: - [SP] argc - [SP+4] argv[0] - ... - [SP+4*argc] NULL - [SP+4*(argc+1)] envp[0] - ... - NULL -*/ - - .syntax no_register_prefix - - .text - .globl _start - .type _start,@function -_start: - /* Clear the frame pointer, to mark the outermost frame. */ - moveq 0,r8 - - /* Move the shared library termination function to the right place - for __libc_main. */ - move.d r10,r9 - - /* Extract the arguments as encoded on the stack and set up the - arguments for `main': argc, argv. envp will be determined - later in __libc_start_main. */ - - /* Get the argument count. */ - move.d [sp],r11 - - /* Store the stack pointer as end of stack. We overwrite - the incoming argc. */ - move.d sp,[sp] - - /* The argument vector starts just after the argument count. */ - move.d sp,r12 - addq 4,r12 - - /* There are seven arguments to __libc_start_main: - r10: main - Address of it. - r11: argc - r12: argv - r13: init - Function to call. - - [sp]: fini - Function to register with atexit. - [sp+4]: rtld_fini - Another function to register with atexit. - [sp+8]: stack_end - Top of stack (actually same as argv). - - The last two are passed on stack. */ - - /* Store the fini function coming from the dynamic loader. */ - push r9 - - /* Get the addresses of our own entry points to `.fini' and - `.init'. */ - -#ifdef __PIC__ - /* If for some reason this program is compiled as PIC, set up R0. */ - move.d pc,r0 - sub.d .:GOTOFF,r0 - - move.d __libc_csu_init:PLTG,r13 - add.d r0,r13 - move.d __libc_csu_fini:PLTG,r9 - add.d r0,r9 - move.d main:PLTG,r10 - add.d r0,r10 -#else - move.d __libc_csu_init,r13 - move.d __libc_csu_fini,r9 - move.d main,r10 -#endif - push r9 - - /* Call the user's main function, and exit with its value. But - let the libc call main. */ - PLTCALL (__libc_start_main) - - /* Crash if somehow `exit' does return. We have at least 8192 - invalid addresses to choose from. */ - test.d [6502] - - /* Stop the unstoppable. */ -0: - ba 0b - nop - -/* Define a symbol for the first piece of initialized data. */ - .data - .globl __data_start -__data_start: - .long 0 - .weak data_start - data_start = __data_start |