diff options
| author | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-22 23:48:07 +0400 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-22 23:48:07 +0400 |
| commit | bc6b90cc1046dbb18f9a7c2b7411e91593d4b175 (patch) | |
| tree | 570c8d89f63ad8f8784b735fb2c019ca15cce289 /libgloss/moxie/crt0.S | |
| parent | 96baa3e74ab8bacb3ba3caa6863dfcc01e542883 (diff) | |
2009-04-22 Anthony Green <green@moxielogic.com>
* configure.in: Add moxie support.
* configure: Regenerate.
* moxie/aclocal.m4, moxie/configure, moxie/configure.in,
moxie/crt0.S, moxie/fstat.c, moxie/getpid.c, isatty.c,
moxie/kill.c, moxie/Makefile.in, moxie/moxie-elf-common.ld,
moxie/print.c, moxie/putnum.c, moxie/qemu.ld, moxie/qemu-time.c,
moxie/qemu-write.c, moxie/sbrk.c, moxie/sim-close.S,
moxie/sim-exit.S,
moxie/sim-inbyte.c, moxie/sim.ld, moxie/sim-lseek.c,
moxie/sim-lseek.S, moxie/sim-open.S, moxie/sim-read.S, moxie/sim-time.c,
moxie/sim-unlink.S, moxie/sim-write.S, moxie/stat.c: New files.
Diffstat (limited to 'libgloss/moxie/crt0.S')
| -rw-r--r-- | libgloss/moxie/crt0.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libgloss/moxie/crt0.S b/libgloss/moxie/crt0.S new file mode 100644 index 000000000..e7c64a68b --- /dev/null +++ b/libgloss/moxie/crt0.S @@ -0,0 +1,40 @@ +/* crt0.S -- startup file for moxie + * + * Copyright (c) 2008 Anthony Green + * + * The authors hereby grant permission to use, copy, modify, distribute, + * and license this software and its documentation for any purpose, provided + * that existing copyright notices are retained in all copies and that this + * notice is included verbatim in any distributions. No written agreement, + * license, or royalty fee is required for any of the authorized uses. + * Modifications to this software may be copyrighted by their authors + * and need not follow the licensing terms described here, provided that + * the new terms are clearly indicated on the first page of each file where + * they apply. + */ + + .globl __start + .weak _start + .text + .type __start,@function +__start: +_start: + ldi.l $sp, _stack /* load up stack pointer */ + ldi.l $fp, 0x0 /* zero fp to allow unwinders to stop */ + + /* zero the bss area */ + /* TODO */ + /* call memset */ + + /* Call _init to invoke static constructors, etc. */ + jsra _init + + /* Set argc and argv. These are populated by the simulator. */ + lda.l $r0, 0x4 + ldi.l $r1, 0x8 + + jsra main + jsra exit + +.Lend: + .size __start,(.Lend-__start) |