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- /*
- * 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
- /* Use the universal 32-bit add instruction as 16-bit add_s was excluded from
- ARCv3 ISA */
- add 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 */
- #if (__GNUC__ > 4)
- .long 4,8,0 /* Earliest compatible kernel for ABI v4 */
- #else
- .long 3,9,0 /* Earliest compatible kernel for ABI v3 */
- #endif
- 3: .align 4 /* Pad out section */
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