projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| aa6ab546 | 1 | /* Startup code for Alpha/ELF. |
| 581c785b | 2 | Copyright (C) 1993-2022 Free Software Foundation, Inc. |
| db31c863 | 3 | This file is part of the GNU C Library. |
| db31c863 UD |
4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 3214b89b AJ |
6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| db31c863 | 9 | |
| 0bec0145 RM |
10 | In addition to the permissions in the GNU Lesser General Public |
| 11 | License, the Free Software Foundation gives you unlimited | |
| 12 | permission to link the compiled version of this file with other | |
| 13 | programs, and to distribute those programs without any restriction | |
| 14 | coming from the use of this file. (The GNU Lesser General Public | |
| 15 | License restrictions do apply in other respects; for example, they | |
| 16 | cover modification of the file, and distribution when not linked | |
| 17 | into another program.) | |
| 18 | ||
| 19 | Note that people who make modified versions of this file are not | |
| 20 | obligated to grant this special exception for their modified | |
| 21 | versions; it is their choice whether to do so. The GNU Lesser | |
| 22 | General Public License gives permission to release a modified | |
| 23 | version without this exception; this exception also makes it | |
| 24 | possible to release a modified version which carries forward this | |
| 25 | exception. | |
| 26 | ||
| db31c863 UD |
27 | The GNU C Library is distributed in the hope that it will be useful, |
| 28 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3214b89b | 30 | Lesser General Public License for more details. |
| db31c863 | 31 | |
| 3214b89b | 32 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff | 33 | License along with the GNU C Library. If not, see |
| 5a82c748 | 34 | <https://www.gnu.org/licenses/>. */ |
| 6932e444 RM |
35 | |
| 36 | #include <sysdep.h> | |
| 37 | ||
| 6932e444 | 38 | .text |
| 93b781dd | 39 | .align 3 |
| 44b8acdd | 40 | .globl _start |
| 11309adf | 41 | .ent _start, 0 |
| 13906e12 | 42 | .type _start,@function |
| dca26bcb | 43 | _start: |
| 13e579e4 | 44 | .frame $15, 0, $15 |
| 93b781dd RM |
45 | br gp, 1f |
| 46 | 1: ldgp gp, 0(gp) | |
| 94cd6191 | 47 | subq sp, 16, sp |
| 13e579e4 | 48 | mov 0, $15 |
| 4bb0cd80 | 49 | .prologue 0 |
| 93b781dd | 50 | |
| f709e937 UD |
51 | /* Load address of the user's main function. */ |
| 52 | lda a0, main | |
| 93b781dd | 53 | |
| 94cd6191 UD |
54 | ldl a1, 16(sp) /* get argc */ |
| 55 | lda a2, 24(sp) /* get argv */ | |
| 6932e444 | 56 | |
| 035c012e FW |
57 | mov $r31, a3 /* Used to be init. */ |
| 58 | mov $r31, a4 /* Used to be fini. */ | |
| 6932e444 | 59 | |
| f709e937 UD |
60 | /* Store address of the shared library termination function. */ |
| 61 | mov v0, a5 | |
| 6932e444 | 62 | |
| 94cd6191 UD |
63 | /* Provide the highest stack address to the user code. */ |
| 64 | stq sp, 0(sp) | |
| 65 | ||
| f709e937 | 66 | /* Call the user's main function, and exit with its value. |
| 94cd6191 | 67 | But let the libc call main. */ |
| f709e937 | 68 | jsr ra, __libc_start_main |
| 11309adf | 69 | |
| 93b781dd RM |
70 | /* Die very horribly if exit returns. Call_pal hlt is callable from |
| 71 | kernel mode only; this will result in an illegal instruction trap. */ | |
| 72 | call_pal 0 | |
| 11309adf UD |
73 | .end _start |
| 74 | ||
| 75 | /* For ECOFF backwards compatibility. */ | |
| 8796ce21 | 76 | weak_alias (_start, __start) |
| d284ba97 UD |
77 | |
| 78 | /* Define a symbol for the first piece of initialized data. */ | |
| 79 | .data | |
| 80 | .globl __data_start | |
| 81 | __data_start: | |
| d284ba97 UD |
82 | .weak data_start |
| 83 | data_start = __data_start |