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Diffstat (limited to 'gcc/config/i386/sol2-gc1.asm')
| -rw-r--r-- | gcc/config/i386/sol2-gc1.asm | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/gcc/config/i386/sol2-gc1.asm b/gcc/config/i386/sol2-gc1.asm deleted file mode 100644 index 8983a672ac2..00000000000 --- a/gcc/config/i386/sol2-gc1.asm +++ /dev/null @@ -1,160 +0,0 @@ -! gcrt1.s for Solaris 2, x86 - -! Copyright (C) 1993 Free Software Foundation, Inc. -! Written By Fred Fish, Nov 1992 -! -! This file is free software; you can redistribute it and/or modify it -! under the terms of the GNU General Public License as published by the -! Free Software Foundation; either version 2, or (at your option) any -! later version. -! -! In addition to the permissions in the GNU General Public License, the -! Free Software Foundation gives you unlimited permission to link the -! compiled version of this file with other programs, and to distribute -! those programs without any restriction coming from the use of this -! file. (The General Public License restrictions do apply in other -! respects; for example, they cover modification of the file, and -! distribution when not linked into another program.) -! -! This file 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 -! General Public License for more details. -! -! You should have received a copy of the GNU General Public License -! along with this program; see the file COPYING. If not, write to -! the Free Software Foundation, 59 Temple Place - Suite 330, -! Boston, MA 02111-1307, USA. -! -! As a special exception, if you link this library with files -! compiled with GCC to produce an executable, this does not cause -! the resulting executable to be covered by the GNU General Public License. -! This exception does not however invalidate any other reasons why -! the executable file might be covered by the GNU General Public License. -! - -! This file takes control of the process from the kernel, as specified -! in section 3 of the System V Application Binary Interface, Intel386 -! Processor Supplement. It has been constructed from information obtained -! from the ABI, information obtained from single stepping existing -! Solaris executables through their startup code with gdb, and from -! information obtained by single stepping executables on other i386 SVR4 -! implementations. This file is the first thing linked into any executable. - -! This is a modified crt1.s by J.W.Hawtin <J.W.Hawtin@lboro.ac.uk> 15/8/96, -! to allow program profiling, by calling monstartup on entry and _mcleanup -! on exit - - .file "gcrt1.s" - .ident "GNU C gcrt1.s" - .weak _DYNAMIC - .text - -! Start creating the initial frame by pushing a NULL value for the return -! address of the initial frame, and mark the end of the stack frame chain -! (the innermost stack frame) with a NULL value, per page 3-32 of the ABI. -! Initialize the first stack frame pointer in %ebp (the contents of which -! are unspecified at process initialization). - - .globl _start -_start: - pushl $0x0 - pushl $0x0 - movl %esp,%ebp - -! As specified per page 3-32 of the ABI, %edx contains a function -! pointer that should be registered with atexit(), for proper -! shared object termination. Just push it onto the stack for now -! to preserve it. We want to register _cleanup() first. - - pushl %edx - -! Check to see if there is an _cleanup() function linked in, and if -! so, register it with atexit() as the last thing to be run by -! atexit(). - - movl $_mcleanup,%eax - testl %eax,%eax - je .L1 - pushl $_mcleanup - call atexit - addl $0x4,%esp -.L1: - -! Now check to see if we have an _DYNAMIC table, and if so then -! we need to register the function pointer previously in %edx, but -! now conveniently saved on the stack as the argument to pass to -! atexit(). - - movl $_DYNAMIC,%eax - testl %eax,%eax - je .L2 - call atexit -.L2: - -! Register _fini() with atexit(). We will take care of calling _init() -! directly. - - pushl $_fini - call atexit - -! Start profiling - - pushl %ebp - movl %esp,%ebp - pushl $_etext - pushl $_start - call monstartup - addl $8,%esp - popl %ebp - -! Compute the address of the environment vector on the stack and load -! it into the global variable _environ. Currently argc is at 8 off -! the frame pointer. Fetch the argument count into %eax, scale by the -! size of each arg (4 bytes) and compute the address of the environment -! vector which is 16 bytes (the two zero words we pushed, plus argc, -! plus the null word terminating the arg vector) further up the stack, -! off the frame pointer (whew!). - - movl 8(%ebp),%eax - leal 16(%ebp,%eax,4),%edx - movl %edx,_environ - -! Push the environment vector pointer, the argument vector pointer, -! and the argument count on to the stack to set up the arguments -! for _init(), _fpstart(), and main(). Note that the environment -! vector pointer and the arg count were previously loaded into -! %edx and %eax respectively. The only new value we need to compute -! is the argument vector pointer, which is at a fixed address off -! the initial frame pointer. - - pushl %edx - leal 12(%ebp),%edx - pushl %edx - pushl %eax - -! Call _init(argc, argv, environ), _fpstart(argc, argv, environ), and -! main(argc, argv, environ). - - call _init - call __fpstart - call main - -! Pop the argc, argv, and environ arguments off the stack, push the -! value returned from main(), and call exit(). - - addl $12,%esp - pushl %eax - call exit - -! An inline equivalent of _exit, as specified in Figure 3-26 of the ABI. - - pushl $0x0 - movl $0x1,%eax - lcall $7,$0 - -! If all else fails, just try a halt! - - hlt - .type _start,@function - .size _start,.-_start |