diff options
| author | Eric Andersen <andersen@codepoet.org> | 2002-05-10 08:28:15 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2002-05-10 08:28:15 +0000 |
| commit | b5bbbc0f5f2c2c36c56249c7b2e305eb78cab7e3 (patch) | |
| tree | 70acacdc76cb4cfdb2aa4072fc3535ff99594f81 /libc/sysdeps/linux/alpha/crt0.S | |
| parent | 4a6cfe318094cc8b20e6e3003f417f8ab3563bb1 (diff) | |
First pass attempt at an alpha port
Diffstat (limited to 'libc/sysdeps/linux/alpha/crt0.S')
| -rw-r--r-- | libc/sysdeps/linux/alpha/crt0.S | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/alpha/crt0.S b/libc/sysdeps/linux/alpha/crt0.S new file mode 100644 index 000000000..a489622bf --- /dev/null +++ b/libc/sysdeps/linux/alpha/crt0.S @@ -0,0 +1,72 @@ +/* Startup code for Alpha/ELF. + Copyright (C) 1993,1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@tamu.edu> + + 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. */ + + + .text + .align 3 + .globl _start + .ent _start, 0 + .type _start,@function +_start: + .frame $15, 0, $31 + mov $31, $15 + br $29, 1f +1: ldgp $29, 0($29) + subq $30, 16, $30 + .prologue 0 + + /* Load address of the user's main function. */ + lda $16, main + + ldl $17, 16($30) /* get argc */ + lda $18, 24($30) /* get argv */ + +#if 0 + /* Load address of our own entry points to .fini and .init. */ + lda $19, _init + lda $20, _fini + + /* Store address of the shared library termination function. */ + mov $0, $21 + + /* Provide the highest stack address to the user code. */ + stq $30, 0($30) +#endif + + /* Call the user's main function, and exit with its value. + But let the libc call main. */ + jsr $26, __uClibc_main + + /* Die very horribly if exit returns. Call_pal hlt is callable from + kernel mode only; this will result in an illegal instruction trap. */ + call_pal 0 + .end _start + +/* For ECOFF backwards compatibility. */ +.weak __start; + __start = _start + +/* 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 |