diff options
Diffstat (limited to 'mdk-stage1/dietlibc/ia64/start.S')
| -rw-r--r-- | mdk-stage1/dietlibc/ia64/start.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/ia64/start.S b/mdk-stage1/dietlibc/ia64/start.S new file mode 100644 index 000000000..dbacb25f6 --- /dev/null +++ b/mdk-stage1/dietlibc/ia64/start.S @@ -0,0 +1,45 @@ +/* + Copyright (C) 2002 Thomas M. Ogrisegg + + This is free software. You can redistribute and + modify it under the terms of the GNU General Public + Public License. + + This file is part of the IA64-Port of the dietlibc + + start.S + Implemenation of the _start startup function +*/ + +.psr abi64 +.psr lsb +.lsb + +.text +.globl _start +.proc _start + +_start: + alloc r2 = ar.pfs,0,0,7,0 + adds out1 = 16, sp /* base arguments */ + movl gp = @gprel(0f) /* base offset */ + ;; +0: + ld8 out0 = [out1], 8 /* load argc and set argv */ + mov r9 = ip + ;; + shladd out2=out0,3,out1 /* envp = argv+8*argc */ + sub gp = r9, gp /* subtract program counter */ + ;; + addl r15 = @ltoff(environ#), gp /* offset to environ */ + adds out2 = 8, out2 /* envp += 8 */ + ;; + ld8 r14 = [r15] + ;; + st8 [r14] = out2 /* store envp in environ */ + br.call.sptk.few rp = main /* call main */ + ;; + mov r32 = r8 /* store return code */ + br _exit /* branch to _exit */ +.endp _start +.size _start, . - _start |