/* * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com) * * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. */ #include <features.h> .text #ifndef __UCLIBC_CTOR_DTOR__ .weak _init .weak _fini #endif /* Stick in a dummy reference to main(), so that if an application * is linking when the main() function is in a static library (.a) * we can be sure that main() actually gets linked in */ .type main,@function .type _main,@function /* When we enter this piece of code, the program stack looks like this: argc argument counter (integer) argv[0] program name (pointer) argv[1...N] program args (pointers) argv[argc-1] end of args (integer) NULL env[0...N] environment variables (pointers) NULL */ .text .align 4 .global __start .hidden __start .type __start,@function __start: mov fp, 0 ld_s r1, [sp] ; argc mov_s r5, r0 ; rltd_fini add_s r2, sp, 4 ; argv #ifdef L_Scrt1 ld r0, [pcl, @main@gotpc] ld r3, [pcl, @_init@gotpc] ld r4, [pcl, @_fini@gotpc] #else mov_s r0, main mov_s r3, _init mov r4, _fini #endif and sp, sp, -8 mov r6, sp /* __uClibc_main (main, argc, argv, init, fini, rtld_fini, stack_end) */ bl __uClibc_main /* Should never get here.... */ flag 1 .size __start,.-__start /* Implement a .note.ABI-tag section that is mandatory for Linux executables according to LSB. See: https://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html. Also: libc/sysdeps/linux/avr32/crt1.S. */ .section ".note.ABI-tag", "a" .align 4 .long 1f - 0f /* Name length */ .long 3f - 2f /* Data length */ .long 1 /* Note type */ 0: .asciz "GNU" /* Vendor name */ 1: .align 4 2: .long 0 /* Note data: Linux executable */ .long 3,9,0 /* Earliest compatible kernel */ 3: .align 4 /* Pad out section */