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authordeischen <deischen@FreeBSD.org>2003-02-18 12:31:57 +0000
committerdeischen <deischen@FreeBSD.org>2003-02-18 12:31:57 +0000
commit438c5f3164b7c4a1fba730e9e94ecb843978d025 (patch)
treecacfdc3a768db28007dbe33d9a61f7652d4d4704 /lib/libc/alpha/gen
parent79fa543e5259b5ffa5d18e5eea292aec0839868a (diff)
downloadFreeBSD-src-438c5f3164b7c4a1fba730e9e94ecb843978d025.zip
FreeBSD-src-438c5f3164b7c4a1fba730e9e94ecb843978d025.tar.gz
Remove these from libc; they are now system calls.
Prompted by: mini
Diffstat (limited to 'lib/libc/alpha/gen')
-rw-r--r--lib/libc/alpha/gen/getcontext.S374
1 files changed, 0 insertions, 374 deletions
diff --git a/lib/libc/alpha/gen/getcontext.S b/lib/libc/alpha/gen/getcontext.S
deleted file mode 100644
index 8149133..0000000
--- a/lib/libc/alpha/gen/getcontext.S
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * Copyright (c) 2001 Daniel Eischen <deischen@freebsd.org>
- * All rights reserved.
- *
- * 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. Neither the name of the author 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 AUTHOR 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 AUTHOR 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.
- */
-/*
- * Copyright (c) 1994, 1995 Carnegie-Mellon University.
- * All rights reserved.
- *
- * Author: Chris G. Demetriou
- *
- * Permission to use, copy, modify and distribute this software and
- * its documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
- * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
- *
- */
-
-#include <machine/asm.h>
-__FBSDID("$FreeBSD$");
-
-/* #include <machine/frame.h> */
-#define FRAME_V0 0
-#define FRAME_T0 1
-#define FRAME_T1 2
-#define FRAME_T2 3
-#define FRAME_T3 4
-#define FRAME_T4 5
-#define FRAME_T5 6
-#define FRAME_T6 7
-#define FRAME_T7 8
-#define FRAME_S0 9
-#define FRAME_S1 10
-#define FRAME_S2 11
-#define FRAME_S3 12
-#define FRAME_S4 13
-#define FRAME_S5 14
-#define FRAME_S6 15
-#define FRAME_A3 16
-#define FRAME_A4 17
-#define FRAME_A5 18
-#define FRAME_RA 23
-#define FRAME_T12 24
-#define FRAME_AT 25
-#define FRAME_SP 26
-#define FRAME_TRAPARG_A0 28
-#define FRAME_TRAPARG_A1 29
-#define FRAME_TRAPARG_A2 30
-#define FRAME_PC (FRAME_TRAPARG_A2 + 1 + 1)
-
-/* #include <machine/reg.h> */
-#define R_V0 0
-#define R_T0 1
-#define R_T1 2
-#define R_T2 3
-#define R_T3 4
-#define R_T4 5
-#define R_T5 6
-#define R_T6 7
-#define R_T7 8
-#define R_S0 9
-#define R_S1 10
-#define R_S2 11
-#define R_S3 12
-#define R_S4 13
-#define R_S5 14
-#define R_S6 15
-#define R_A0 16
-#define R_A1 17
-#define R_A2 18
-#define R_A3 19
-#define R_A4 20
-#define R_A5 21
-#define R_T8 22
-#define R_T9 23
-#define R_T10 24
-#define R_T11 25
-#define R_RA 26
-#define R_T12 27
-#define R_SP 30
-#define R_ZERO 31
-
-/*
- * XXX - The rev id's are defined in <machine/ucontext.h>
- */
-#define UC_FMT_OFFSET 73*8 + 4*4 /* offset to format from ucontext */
-#define REV0_SIGFRAME 0x0001 /* rev R0 sigcontext format */
-#define REV0_TRAPFRAME 0x0002 /* rev R0 trapframe format */
-
-/*
- * int setcontext(const ucontext_t *);
- *
- * The format of the context is verified at the beginning.
- * Returns -1 if invalid format or sigprocmask fails.
- */
- .set noreorder
-XLEAF(setcontext, 1)
-LEAF(__setcontext, 1)
- LDGP(pv)
- bne a0, Lsc1 /* argument null? */
-Lscbad: ldiq v0, -1 /* return -1 */
- br Lscend
-Lsc1: ldl t1, UC_FMT_OFFSET(a0) /* is mcontext valid format? */
- ldil t0, REV0_TRAPFRAME
- cmpeq t0, t1, t0 /* is it trapframe format? */
- bne t0, Lsc_sm /* if so, get signal mask */
- ldil t0, REV0_SIGFRAME
- cmpeq t0, t1, t0 /* is it sigcontext format? */
- beq t0, Lscbad
- /* supposedly sigcontext format, check magic number */
- ldiq t0, 0xACEDBADE /* check magic number */
- ldq t1, ((R_ZERO + 3) * 8)(a0) /* magic in mc_regs[R_ZERO] */
- cmpeq t0, t1, t0
- beq t0, Lscbad
- /*
- * set current signal mask
- */
-Lsc_sm: lda sp, -16(sp) /* save some space on stack */
- stq ra, 0(sp) /* save ra */
- stq a0, 8(sp) /* save ptr to ucontext */
- mov a0, a1 /* set: &ucp->uc_sigmask */
- mov zero, a2 /* oset: NULL */
- ldiq a0, 3 /* how: SIG_SETMASK */
- CALL(_sigprocmask) /* set new signal mask */
- ldq a0, 8(sp) /* restore ptr to ucontext */
- ldq ra, 0(sp) /* restore ra */
- lda sp, 16(sp) /* restore stack */
- bne v0, Lscbad /* check for error */
- /* restore floating point regs first */
- ldq t0, ((71 + 3) * 8)(a0) /* if FP regs not saved, */
- beq t0, Lsc2 /* skip setting FP regs */
- ldt $f0, ((37 + 3) * 8)(a0) /* restore FP regs using */
- ldt $f1, ((38 + 3) * 8)(a0) /* hw name */
- ldt $f2, ((39 + 3) * 8)(a0)
- ldt $f3, ((40 + 3) * 8)(a0)
- ldt $f4, ((41 + 3) * 8)(a0)
- ldt $f5, ((42 + 3) * 8)(a0)
- ldt $f6, ((43 + 3) * 8)(a0)
- ldt $f7, ((44 + 3) * 8)(a0)
- ldt $f8, ((45 + 3) * 8)(a0)
- ldt $f9, ((46 + 3) * 8)(a0)
- ldt $f10, ((47 + 3) * 8)(a0)
- ldt $f11, ((48 + 3) * 8)(a0)
- ldt $f12, ((49 + 3) * 8)(a0)
- ldt $f13, ((50 + 3) * 8)(a0)
- ldt $f14, ((51 + 3) * 8)(a0)
- ldt $f15, ((52 + 3) * 8)(a0)
- ldt $f16, ((53 + 3) * 8)(a0)
- ldt $f17, ((54 + 3) * 8)(a0)
- ldt $f18, ((55 + 3) * 8)(a0)
- ldt $f19, ((56 + 3) * 8)(a0)
- ldt $f20, ((57 + 3) * 8)(a0)
- ldt $f21, ((58 + 3) * 8)(a0)
- ldt $f22, ((59 + 3) * 8)(a0)
- ldt $f23, ((60 + 3) * 8)(a0)
- ldt $f24, ((61 + 3) * 8)(a0)
- ldt $f25, ((62 + 3) * 8)(a0)
- ldt $f26, ((63 + 3) * 8)(a0)
- ldt $f27, ((64 + 3) * 8)(a0)
- .set noat
- ldt $f28, ((65 + 3) * 8)(a0)
- .set at
- ldt $f29, ((66 + 3) * 8)(a0)
- ldt $f30, ((67 + 3) * 8)(a0)
- /* $f31 is hardwired zero */
- ldt ft0, ((69 + 3) * 8)(a0) /* restore FP control reg */
- mt_fpcr ft0
-Lsc2: ldil t0, REV0_SIGFRAME /* check the context format */
- ldl t1, UC_FMT_OFFSET(a0) /* again. */
- cmpeq t0, t1, t0 /* is it sigcontext format? */
- bne t0, Lsc_sc
- /* trapframe format */
- ldq v0, ((FRAME_V0 + 3) * 8)(a0) /* set v0 */
- ldq t0, ((FRAME_T0 + 3) * 8)(a0) /* set t0-t7 */
- ldq t1, ((FRAME_T1 + 3) * 8)(a0)
- ldq t2, ((FRAME_T2 + 3) * 8)(a0)
- ldq t3, ((FRAME_T3 + 3) * 8)(a0)
- ldq t4, ((FRAME_T4 + 3) * 8)(a0)
- ldq t5, ((FRAME_T5 + 3) * 8)(a0)
- ldq t6, ((FRAME_T6 + 3) * 8)(a0)
- ldq t7, ((FRAME_T7 + 3) * 8)(a0)
- ldq s0, ((FRAME_S0 + 3) * 8)(a0) /* set s0-s6 */
- ldq s1, ((FRAME_S1 + 3) * 8)(a0)
- ldq s2, ((FRAME_S2 + 3) * 8)(a0)
- ldq s3, ((FRAME_S3 + 3) * 8)(a0)
- ldq s4, ((FRAME_S4 + 3) * 8)(a0)
- ldq s5, ((FRAME_S5 + 3) * 8)(a0)
- ldq s6, ((FRAME_S6 + 3) * 8)(a0)
- ldq a1, ((FRAME_TRAPARG_A1 + 3) * 8)(a0) /* set a1-a5 */
- ldq a2, ((FRAME_TRAPARG_A2 + 3) * 8)(a0)
- ldq a3, ((FRAME_A3 + 3) * 8)(a0)
- ldq a4, ((FRAME_A4 + 3) * 8)(a0)
- ldq a5, ((FRAME_A5 + 3) * 8)(a0)
- ldq ra, ((FRAME_RA + 3) * 8)(a0)
- ldq sp, ((FRAME_SP + 3) * 8)(a0)
- .set noat
- ldq at_reg, ((FRAME_PC + 3) * 8)(a0) /* PC at time of trap? */
- .set at
- ldq a0, ((FRAME_TRAPARG_A0 + 3) * 8)(a0) /* restore a0 last */
- br Lscend /* return to PC or RA? */
-Lsc_sc: /* sigcontext format */
- ldq v0, ((R_V0 + 3) * 8)(a0) /* set v0 */
- ldq t0, ((R_T0 + 3) * 8)(a0) /* set t0-t7 */
- ldq t1, ((R_T1 + 3) * 8)(a0)
- ldq t2, ((R_T2 + 3) * 8)(a0)
- ldq t3, ((R_T3 + 3) * 8)(a0)
- ldq t4, ((R_T4 + 3) * 8)(a0)
- ldq t5, ((R_T5 + 3) * 8)(a0)
- ldq t6, ((R_T6 + 3) * 8)(a0)
- ldq t7, ((R_T7 + 3) * 8)(a0)
- ldq s0, ((R_S0 + 3) * 8)(a0) /* set s0-s6 */
- ldq s1, ((R_S1 + 3) * 8)(a0)
- ldq s2, ((R_S2 + 3) * 8)(a0)
- ldq s3, ((R_S3 + 3) * 8)(a0)
- ldq s4, ((R_S4 + 3) * 8)(a0)
- ldq s5, ((R_S5 + 3) * 8)(a0)
- ldq s6, ((R_S6 + 3) * 8)(a0)
- ldq a1, ((R_A1 + 3) * 8)(a0) /* set a1-a5 */
- ldq a2, ((R_A2 + 3) * 8)(a0)
- ldq a3, ((R_A3 + 3) * 8)(a0)
- ldq a4, ((R_A4 + 3) * 8)(a0)
- ldq a5, ((R_A5 + 3) * 8)(a0)
- ldq ra, ((R_RA + 3) * 8)(a0)
- ldq sp, ((R_SP + 3) * 8)(a0)
- ldq a0, ((R_A0 + 3) * 8)(a0) /* restore a0 last */
-Lscend: RET
-END(__setcontext)
-
-
-/*
- * int getcontext(ucontext_t *ucp);
- *
- * Always save in trapframe format. Floating point registers are
- * saved but may be optimized away later (see comments below).
- */
-XLEAF(getcontext, 1)
-LEAF(__getcontext, 1)
- LDGP(pv)
- bne a0, Lgc1 /* argument null? */
- ldiq v0, -1 /* return -1 */
- br Lgcend
-Lgc1: ldiq v0, 0 /* {gs}etcontext returns 0, */
- stq v0, ((FRAME_V0 + 3) * 8)(a0) /* so save 0 in v0 */
- stq t0, ((FRAME_T0 + 3) * 8)(a0) /* save t0-t7 */
- stq t1, ((FRAME_T1 + 3) * 8)(a0)
- stq t2, ((FRAME_T2 + 3) * 8)(a0)
- stq t3, ((FRAME_T3 + 3) * 8)(a0)
- stq t4, ((FRAME_T4 + 3) * 8)(a0)
- stq t5, ((FRAME_T5 + 3) * 8)(a0)
- stq t6, ((FRAME_T6 + 3) * 8)(a0)
- stq t7, ((FRAME_T7 + 3) * 8)(a0)
- stq s0, ((FRAME_S0 + 3) * 8)(a0) /* save s0-s6 */
- stq s1, ((FRAME_S1 + 3) * 8)(a0)
- stq s2, ((FRAME_S2 + 3) * 8)(a0)
- stq s3, ((FRAME_S3 + 3) * 8)(a0)
- stq s4, ((FRAME_S4 + 3) * 8)(a0)
- stq s5, ((FRAME_S5 + 3) * 8)(a0)
- stq s6, ((FRAME_S6 + 3) * 8)(a0)
- stq a0, ((FRAME_TRAPARG_A0 + 3) * 8)(a0) /* save a0-a5 */
- stq a1, ((FRAME_TRAPARG_A1 + 3) * 8)(a0)
- stq a2, ((FRAME_TRAPARG_A2 + 3) * 8)(a0)
- stq a3, ((FRAME_A3 + 3) * 8)(a0)
- stq a4, ((FRAME_A4 + 3) * 8)(a0)
- stq a5, ((FRAME_A5 + 3) * 8)(a0)
- stq ra, ((FRAME_RA + 3) * 8)(a0)
- stq sp, ((FRAME_SP + 3) * 8)(a0)
- ldiq t0, REV0_TRAPFRAME /* store trapframe format in */
- stq t0, UC_FMT_OFFSET(a0) /* ucp->uc-rev */
- /*
- * get current signal mask
- *
- * XXX - Since a1 is destroyed, does it need to be saved and restored?
- */
- mov a0, s0 /* save ptr to ucontext */
- mov a0, a2 /* oset: &ucp->uc_sigmask */
- mov zero, a1 /* set: NULL */
- ldiq a0, 3 /* how: SIG_SETMASK */
- CALL(_sigprocmask) /* see what's blocked */
- mov s0, a0 /* restore ptr to ucontext */
- ldq ra, ((FRAME_RA + 3) * 8)(a0) /* restore ra */
- ldq s0, ((FRAME_S0 + 3) * 8)(a0) /* restore s0 */
- beq v0, Lgc2 /* check for error */
- ldiq v0, -1 /* return -1 */
- br Lgcend
-Lgc2:
- /*
- * XXX - Do we really need to save floating point registers?
- *
- * This is an explicit call to get the current context, so
- * shouldn't the caller be done with the floating point registers?
- * Contexts formed by involuntary switches, such as signal delivery,
- * should have floating point registers saved by the kernel.
- */
-#if 1
- stq zero, ((71 + 3) * 8)(a0) /* FP regs are not saved */
-#else
- ldiq t0, 1 /* say we've used FP, */
- stq t0, ((71 + 3) * 8)(a0) /* mc_ownedfp = 1 */
- stt $f0, ((37 + 3) * 8)(a0) /* save first register, using */
- stt $f1, ((38 + 3) * 8)(a0) /* hw name etc. */
- stt $f2, ((39 + 3) * 8)(a0)
- stt $f3, ((40 + 3) * 8)(a0)
- stt $f4, ((41 + 3) * 8)(a0)
- stt $f5, ((42 + 3) * 8)(a0)
- stt $f6, ((43 + 3) * 8)(a0)
- stt $f7, ((44 + 3) * 8)(a0)
- stt $f8, ((45 + 3) * 8)(a0)
- stt $f9, ((46 + 3) * 8)(a0)
- stt $f10, ((47 + 3) * 8)(a0)
- stt $f11, ((48 + 3) * 8)(a0)
- stt $f12, ((49 + 3) * 8)(a0)
- stt $f13, ((50 + 3) * 8)(a0)
- stt $f14, ((51 + 3) * 8)(a0)
- stt $f15, ((52 + 3) * 8)(a0)
- stt $f16, ((53 + 3) * 8)(a0)
- stt $f17, ((54 + 3) * 8)(a0)
- stt $f18, ((55 + 3) * 8)(a0)
- stt $f19, ((56 + 3) * 8)(a0)
- stt $f20, ((57 + 3) * 8)(a0)
- stt $f21, ((58 + 3) * 8)(a0)
- stt $f22, ((59 + 3) * 8)(a0)
- stt $f23, ((60 + 3) * 8)(a0)
- stt $f24, ((61 + 3) * 8)(a0)
- stt $f25, ((62 + 3) * 8)(a0)
- stt $f26, ((63 + 3) * 8)(a0)
- stt $f27, ((64 + 3) * 8)(a0)
- .set noat
- stt $f28, ((65 + 3) * 8)(a0)
- .set at
- stt $f29, ((66 + 3) * 8)(a0)
- stt $f30, ((67 + 3) * 8)(a0)
- /* $f31 is hardwired zero */
-#endif
- mf_fpcr ft0 /* get FP control reg */
- stt ft0, ((69 + 3) * 8)(a0) /* and store it in mc_fpcr */
- stq zero, ((70 + 3) * 8)(a0) /* FP software control XXX */
- mov zero, v0 /* return zero */
-Lgcend: RET
-END(__getcontext)
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