frv: resurrect port somehow, totally untested

The FR-V port is really broken, and I have no emulator
or hardware for this platform. I tried to get some hardware
from RedHat, who made the FR-V port initially. Unfortunately
Fujitsi didn't agreed to sent me some of their unused spare
hardware lying @RedHat. As I invested some time to get stuff compiled,
I decided to add the code and may be anytime later I can gain
access to some emulator or hardware.

GDB simulator for FR-V doesn't support booting Linux AFAIK.

1 files changed, 0 insertions, 124 deletions

diff --git a/libc/sysdeps/linux/frv/crt0.S b/libc/sysdeps/linux/frv/crt0.S
deleted file mode 100644
index 59f61f94f..000000000
--- a/libc/sysdeps/linux/frv/crt0.S
+++ /dev/null
@@ -1,124 +0,0 @@
-/* Copyright (C) 1991, 1992, 2003, 2004 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-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
-Library General Public License for more details.
-
-In addition to the permissions in the GNU Lesser 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 GNU Lesser 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.)
-
-You should have received a copy of the GNU Lesser General Public
-License along with the GNU C Library; see the file COPYING.LIB.  If
-not, see <http://www.gnu.org/licenses/>.  */
-
-
-/*  Based on ../i386/crt0.S and newlib's libgloss/frv/crt0.S  */
-
-/*
-    When we enter this piece of code, the program stack looks like this:
-        argc            argument counter (integer)
-        argv[0]         program name (pointer)
-        argv[1...N]     program args (pointers)
-        argv[argc-1]    end of args (integer)
-	NULL
-        env[0...N]      environment variables (pointers)
-        NULL
-
-    Also, GR16 holds a pointer to a memory map.  */
-
-#include <features.h>
-
-	.text
-	.global _start
-	.type	_start,%function
-#if defined L_crt0 || defined L_Scrt0 || ! defined __UCLIBC_CTOR_DTOR__
-	.type __uClibc_main,%function
-#else
-	.weak	_init
-	.weak	_fini
-	.type	__uClibc_start_main,%function
-#endif
-_start:
-	/* Make sure the stack pointer is properly aligned.  Save the
-	   original value in gr21 such that we can get to arguments and
-	   such from there.  */
-	mov.p	sp, gr21
-	andi	sp, #-8, sp
-	/* At program start-up, gr16 contains a pointer to a memory
-	   map, that we use to relocate addresses.  */
-	call	.Lcall
-.Lcall:
-	movsg	lr, gr4
-	sethi.p	#gprelhi(.Lcall), gr5
-	setlo	#gprello(.Lcall), gr5
-	sub.p	gr4, gr5, gr4
-	/* gr4 now holds the _gp address.  */
-
-	mov	gr16, gr8
-	sethi.p #gprelhi(__ROFIXUP_LIST__), gr9
-	sethi	#gprelhi(__ROFIXUP_END__), gr10
-	setlo.p #gprello(__ROFIXUP_LIST__), gr9
-	setlo	#gprello(__ROFIXUP_END__), gr10
-	add.p	gr9, gr4, gr9
-	add	gr10, gr4, gr10
-	call	__self_reloc
-	mov.p	gr8, gr17
-	mov	gr8, gr15
-	/* gr17 now holds the self-relocated _GLOBAL_OFFSET_TABLE_
-	address, because the linker added its unrelocated address as
-	the last entry in the ROFIXUP list, and __self_reloc returns
-	the last entry, relocated.  */
-
-	/* Prepare arguments for uClibc main.  */
-	ld	@(gr21, gr0), gr8
-	slli	gr8, #2, gr10
-	add	gr21, gr10, gr10
-	addi.p	gr21, #4, gr9
-	addi	gr10, #8, gr10
-
-	/* Set up an invalid (NULL return address, NULL frame pointer)
-	   callers stack frame so anybody unrolling the stack knows where
-	   to stop */
-	mov	gr0, fp
-	movgs	gr0, lr
-
-#if (defined L_crt1 || defined L_Scrt1) && defined __UCLIBC_CTOR_DTOR__
-	/* Pass .init and .fini arguments to __uClibc_start_main().  */
-	sethi.p	#gotfuncdeschi(_init), gr11
-	sethi	#gotfuncdeschi(_fini), gr12
-	setlo.p	#gotfuncdesclo(_init), gr11
-	setlo	#gotfuncdesclo(_fini), gr12
-	ld.p	@(gr11, gr17), gr11
-	mov	gr17, gr15
-	ld.p	@(gr12, gr17), gr12
-	call	__uClibc_start_main
-#else
-	mov.p	gr17, gr15
-	call	__uClibc_main
-#endif
-
-	/* Crash if somehow `exit' returns anyways.  */
-	jmpl	@(gr0,gr0)
-.size _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
-