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-rw-r--r--sysdeps/unix/sysv/irix4/__handler.S117
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diff --git a/sysdeps/unix/sysv/irix4/__handler.S b/sysdeps/unix/sysv/irix4/__handler.S
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--- a/sysdeps/unix/sysv/irix4/__handler.S
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-/* Copyright (C) 1992, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Brendan Kehoe (brendan@cs.widener.edu).
-   Also hacked by Ian Lance Taylor (ian@airs.com).
-
-   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.  */
-
-#include <sysdep.h>
-
-/* This function saves all the registers, calls the
-   user function, and then executes a sigreturn system call.  The
-   sigreturn call wants the address of a sigcontext structure.  This
-   is all hideously system dependent and, for all intents and
-   purposes, undocumented.
-
-   When we enter here, a3 holds the user's signal handler.  We are
-   supposed to fill in the context given in a2, and then pass it and
-   the first two arguments to the user's function.  If the user's
-   function returns, we execute a sigreturn system call.
-
-   The sc_onstack, sc_mask and sc_pc elements of the context are
-   already set by the kernel.  For some reason we don't have to save
-   the floating point state or the coprocessor state; the kernel may
-   have saved them for us, or it doesn't use them.  */
-
-.set noat
-ENTRY (__handler)
-#if 0
-	/* Store zero and the asm temp reg.  */
-	sw $0, 12(a2)
-	sw AT, 16(a2)
-
-	/* Put v1 in sc_regs[3].  */
-	sw v1, 24(a2)
-
-	/* Save the caller saved registers in sc_regs[8..15].  */
-	sw t0, 44(a2)
-	sw t1, 48(a2)
-	sw t2, 52(a2)
-	sw t3, 56(a2)
-	sw t4, 60(a2)
-	sw t5, 64(a2)
-	sw t6, 68(a2)
-	sw t7, 72(a2)
-
-	/* Save the callee saved registers in sc_regs[16..23].  */
-	sw s0, 76(a2)
-	sw s1, 80(a2)
-	sw s2, 84(a2)
-	sw s3, 88(a2)
-	sw s4, 92(a2)
-	sw s5, 96(a2)
-	sw s6, 100(a2)
-	sw s7, 104(a2)
-
-	/* Save the code generator registers in sc_regs[24] & sc_regs[25].  */
-	sw t8, 108(a2)
-	sw t9, 112(a2)
-
-	/* Save the kernel temp regs in sc_regs[26] & sc_regs[27]. */
-	sw k0, 116(a2)
-	sw k1, 120(a2)
-
-	/* Save the global pointer in sc_regs[28].  */
-	sw gp, 124(a2)
-
-	/* ... and also the return address in sc_regs[31].  */
-	sw ra, 136(a2)
-
-	/* Note: we don't save the stack pointer in sc_regs[29];
-	   instead, we use the one that was already there.  */
-#if 0
-	sw sp, 128(a2)
-#endif
-
-	/* Save the floating pointer in sc_regs[30].  */
-	sw fp, 132(a2)
-
-	/* Save the mul/div stuff in sc_mdlo and sc_mdhi.  */
-	mflo t0
-	sw t0, 140(a2)
-	mfhi t0
-	sw t0, 144(a2)
-
-#endif
-	/* Move the stack up six.  This will save the context.  */
-	addu sp, sp, -24
-	sw a2, 16(sp)
-
-	/* Call their handler with the signal, code, and context; note
-	   this will clobber the context.  */
-	.set noreorder
-	jal ra, a3
-	nop
-	.set reorder
-
-	/* When we come back, restore the context and pass it right
-	   on into sigreturn().  */
-	lw a0, 16(sp)
-
-	/* Do a sigreturn syscall; this doesn't return.  */
-	li v0, SYS_sigreturn
-	syscall
-	nop