diff options
Diffstat (limited to 'lib/libc/mips/gen/setjmp.S')
-rw-r--r-- | lib/libc/mips/gen/setjmp.S | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/lib/libc/mips/gen/setjmp.S b/lib/libc/mips/gen/setjmp.S deleted file mode 100644 index deeb892..0000000 --- a/lib/libc/mips/gen/setjmp.S +++ /dev/null @@ -1,164 +0,0 @@ -/* $NetBSD: setjmp.S,v 1.17 2005/09/17 11:49:39 tsutsui Exp $ */ - -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Ralph Campbell. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); -#include <machine/regnum.h> - -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: setjmp.S,v 1.17 2005/09/17 11:49:39 tsutsui Exp $") -#endif /* LIBC_SCCS and not lint */ - -#include "SYS.h" - -#ifdef __ABICALLS__ - .abicalls -#endif - -/* - * C library -- setjmp, longjmp - * - * longjmp(a,v) - * will generate a "return(v)" from - * the last call to - * setjmp(a) - * by restoring registers from the stack, - * and a struct sigcontext, see <signal.h> - */ - -#define SETJMP_FRAME_SIZE (CALLFRAME_SIZ + (SZREG * 2)) - - -NESTED(setjmp, SETJMP_FRAME_SIZE, ra) - .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) - SETUP_GP - PTR_SUBU sp, sp, SETJMP_FRAME_SIZE # allocate stack frame - SAVE_GP(CALLFRAME_GP) - SETUP_GP64(CALLFRAME_GP, setjmp) - - REG_S ra, CALLFRAME_RA(sp) # save RA - REG_S a0, CALLFRAME_SIZ(sp) # store env - - /* Get the signal mask. */ - PTR_ADDU a2, a0, _JB_SIGMASK * SZREG # &oenv - li a0, 1 # SIG_SETBLOCK - move a1, zero # &env == 0 - PTR_LA t9, _C_LABEL(sigprocmask) # get current signal mask - jalr t9 - - RESTORE_GP64 - REG_L a0, CALLFRAME_SIZ(sp) # restore env pointer - REG_L ra, CALLFRAME_RA(sp) # restore RA - PTR_ADDU sp, sp, SETJMP_FRAME_SIZE # pop stack frame - - REG_LI v0, _JB_MAGIC_SETJMP - REG_S v0, (_JB_MAGIC * SZREG)(a0) - REG_S ra, (_JB_REG_RA * SZREG)(a0) - REG_S s0, (_JB_REG_S0 * SZREG)(a0) - REG_S s1, (_JB_REG_S1 * SZREG)(a0) - REG_S s2, (_JB_REG_S2 * SZREG)(a0) - REG_S s3, (_JB_REG_S3 * SZREG)(a0) - REG_S s4, (_JB_REG_S4 * SZREG)(a0) - REG_S s5, (_JB_REG_S5 * SZREG)(a0) - REG_S s6, (_JB_REG_S6 * SZREG)(a0) - REG_S s7, (_JB_REG_S7 * SZREG)(a0) - REG_S sp, (_JB_REG_SP * SZREG)(a0) - REG_S s8, (_JB_REG_S8 * SZREG)(a0) -#if defined(__mips_n32) || defined(__mips_n64) - REG_S gp, (_JB_REG_GP * SZREG)(a0) -#endif - - move v0, zero - jr ra -END(setjmp) - -#define LONGJMP_FRAME_SIZE (CALLFRAME_SIZ + (SZREG * 2)) - -NESTED(longjmp, LONGJMP_FRAME_SIZE, ra) - .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) - PIC_PROLOGUE(longjmp) - PTR_SUBU sp, sp, LONGJMP_FRAME_SIZE # allocate stack frame - SAVE_GP(CALLFRAME_GP) - - REG_S ra, CALLFRAME_RA(sp) # save RA - REG_L v0, (_JB_MAGIC * SZREG)(a0) - REG_LI t0, _JB_MAGIC_SETJMP - bne v0, t0, botch # jump if error - nop - - REG_S a0, CALLFRAME_SIZ(sp) # save env - REG_S a1, (CALLFRAME_SIZ + SZREG)(sp) # save return value - - # set sigmask - PTR_ADDU a1, a0, _JB_SIGMASK * SZREG # &set - move a2, zero # &oset == NULL - li a0, 3 # SIG_SETMASK - PTR_LA t9,_C_LABEL(sigprocmask) # set current signal mask - jal t9 - nop - - REG_L a0, CALLFRAME_SIZ(sp) # restore env - REG_L a1, (CALLFRAME_SIZ + SZREG)(sp) # restore return value - - REG_L ra, (_JB_REG_RA * SZREG)(a0) - REG_L s0, (_JB_REG_S0 * SZREG)(a0) - REG_L s1, (_JB_REG_S1 * SZREG)(a0) - REG_L s2, (_JB_REG_S2 * SZREG)(a0) - REG_L s3, (_JB_REG_S3 * SZREG)(a0) - REG_L s4, (_JB_REG_S4 * SZREG)(a0) - REG_L s5, (_JB_REG_S5 * SZREG)(a0) - REG_L s6, (_JB_REG_S6 * SZREG)(a0) - REG_L s7, (_JB_REG_S7 * SZREG)(a0) - REG_L sp, (_JB_REG_SP * SZREG)(a0) - REG_L s8, (_JB_REG_S8 * SZREG)(a0) -#if defined(__mips_n32) || defined(__mips_n64) - REG_L gp, (_JB_REG_GP * SZREG)(a0) -#endif - - move v0, a1 - j ra - nop - -botch: - /* - * We know we aren't returning so we don't care about restoring - * our caller's GP. - */ - PTR_LA t9, _C_LABEL(longjmperror) - jalr t9 - nop - - PIC_TAILCALL(abort) -END(longjmp) |