[ceph.git] / ceph / src / boost / libs / context / src / asm / jump_ppc32_sysv_elf_gas.S

/*
            Copyright Oliver Kowalke 2009.
   Distributed under the Boost Software License, Version 1.0.
      (See accompanying file LICENSE_1_0.txt or copy at
          http://www.boost.org/LICENSE_1_0.txt)
*/

/******************************************************
 *                                                     *
 *  -------------------------------------------------  *
 *  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
 *  -------------------------------------------------  *
 *  |  0  |  4  |  8  |  12 |  16 |  20 |  24 |  28 |  *
 *  -------------------------------------------------  *
 *  |    F14    |    F15    |    F16    |    F17    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
 *  -------------------------------------------------  *
 *  |  32 |  36 |  40 |  44 |  48 |  52 |  56 |  60 |  *
 *  -------------------------------------------------  *
 *  |    F18    |    F19    |    F20    |    F21    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
 *  -------------------------------------------------  *
 *  |  64 |  68 |  72 |  76 |  80 |  84 |  88 |  92 |  *
 *  -------------------------------------------------  *
 *  |    F22    |    F23    |    F24    |    F25    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
 *  -------------------------------------------------  *
 *  |  96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 |  *
 *  -------------------------------------------------  *
 *  |    F26    |    F27    |    F28    |    F29    |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
 *  -------------------------------------------------  *
 *  | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 |  *
 *  -------------------------------------------------  *
 *  |    F30    |    F31    |   fpscr   | R13 | R14 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
 *  -------------------------------------------------  *
 *  | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 |  *
 *  -------------------------------------------------  *
 *  | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  48 |  49 |  50 |  51 |  52 |  53 |  54 |  55 |  *
 *  -------------------------------------------------  *
 *  | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 |  *
 *  -------------------------------------------------  *
 *  | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  56 |  57 |  58 |  59 |  60 |  61 |  62 |  63 |  *
 *  -------------------------------------------------  *
 *  | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 |  *
 *  -------------------------------------------------  *
 *  | R31 |hiddn|  CR |  LR |  PC |bchai|linkr| FCTX|  *
 *  -------------------------------------------------  *
 *  -------------------------------------------------  *
 *  |  64 |                                         |  *
 *  -------------------------------------------------  *
 *  | 256 |                                         |  *
 *  -------------------------------------------------  *
 *  | DATA|                                         |  * 
 *  -------------------------------------------------  *
 *                                                     *
 *******************************************************/

.text
.globl jump_fcontext
.align 2
.type jump_fcontext,@function
jump_fcontext:
    # reserve space on stack
    subi  %r1, %r1, 244

    stfd  %f14, 0(%r1)  # save F14
    stfd  %f15, 8(%r1)  # save F15
    stfd  %f16, 16(%r1)  # save F16
    stfd  %f17, 24(%r1)  # save F17
    stfd  %f18, 32(%r1)  # save F18
    stfd  %f19, 40(%r1)  # save F19
    stfd  %f20, 48(%r1)  # save F20
    stfd  %f21, 56(%r1)  # save F21
    stfd  %f22, 64(%r1)  # save F22
    stfd  %f23, 72(%r1)  # save F23
    stfd  %f24, 80(%r1)  # save F24
    stfd  %f25, 88(%r1)  # save F25
    stfd  %f26, 96(%r1)  # save F26
    stfd  %f27, 104(%r1)  # save F27
    stfd  %f28, 112(%r1)  # save F28
    stfd  %f29, 120(%r1)  # save F29
    stfd  %f30, 128(%r1)  # save F30
    stfd  %f31, 136(%r1)  # save F31
    mffs  %f0  # load FPSCR
    stfd  %f0, 144(%r1)  # save FPSCR

    stw  %r13, 152(%r1)  # save R13
    stw  %r14, 156(%r1)  # save R14
    stw  %r15, 160(%r1)  # save R15
    stw  %r16, 164(%r1)  # save R16
    stw  %r17, 168(%r1)  # save R17
    stw  %r18, 172(%r1)  # save R18
    stw  %r19, 176(%r1)  # save R19
    stw  %r20, 180(%r1)  # save R20
    stw  %r21, 184(%r1)  # save R21
    stw  %r22, 188(%r1)  # save R22
    stw  %r23, 192(%r1)  # save R23
    stw  %r24, 196(%r1)  # save R24
    stw  %r25, 200(%r1)  # save R25
    stw  %r26, 204(%r1)  # save R26
    stw  %r27, 208(%r1)  # save R27
    stw  %r28, 212(%r1)  # save R28
    stw  %r29, 216(%r1)  # save R29
    stw  %r30, 220(%r1)  # save R30
    stw  %r31, 224(%r1)  # save R31
    stw  %r3,  228(%r1)  # save hidden

    # save CR
    mfcr  %r0
    stw   %r0, 232(%r1)
    # save LR
    mflr  %r0
    stw   %r0, 236(%r1)
    # save LR as PC
    stw   %r0, 240(%r1)

    # store RSP (pointing to context-data) in R6
    mr  %r6, %r1

    # restore RSP (pointing to context-data) from R4
    mr  %r1, %r4

    lfd  %f14, 0(%r1)  # restore F14
    lfd  %f15, 8(%r1)  # restore F15
    lfd  %f16, 16(%r1)  # restore F16
    lfd  %f17, 24(%r1)  # restore F17
    lfd  %f18, 32(%r1)  # restore F18
    lfd  %f19, 40(%r1)  # restore F19
    lfd  %f20, 48(%r1)  # restore F20
    lfd  %f21, 56(%r1)  # restore F21
    lfd  %f22, 64(%r1)  # restore F22
    lfd  %f23, 72(%r1)  # restore F23
    lfd  %f24, 80(%r1)  # restore F24
    lfd  %f25, 88(%r1)  # restore F25
    lfd  %f26, 96(%r1)  # restore F26
    lfd  %f27, 104(%r1)  # restore F27
    lfd  %f28, 112(%r1)  # restore F28
    lfd  %f29, 120(%r1)  # restore F29
    lfd  %f30, 128(%r1)  # restore F30
    lfd  %f31, 136(%r1)  # restore F31
    lfd  %f0,  144(%r1)  # load FPSCR
    mtfsf  0xff, %f0  # restore FPSCR

    lwz  %r13, 152(%r1)  # restore R13
    lwz  %r14, 156(%r1)  # restore R14
    lwz  %r15, 160(%r1)  # restore R15
    lwz  %r16, 164(%r1)  # restore R16
    lwz  %r17, 168(%r1)  # restore R17
    lwz  %r18, 172(%r1)  # restore R18
    lwz  %r19, 176(%r1)  # restore R19
    lwz  %r20, 180(%r1)  # restore R20
    lwz  %r21, 184(%r1)  # restore R21
    lwz  %r22, 188(%r1)  # restore R22
    lwz  %r23, 192(%r1)  # restore R23
    lwz  %r24, 196(%r1)  # restore R24
    lwz  %r25, 200(%r1)  # restore R25
    lwz  %r26, 204(%r1)  # restore R26
    lwz  %r27, 208(%r1)  # restore R27
    lwz  %r28, 212(%r1)  # restore R28
    lwz  %r29, 216(%r1)  # restore R29
    lwz  %r30, 220(%r1)  # restore R30
    lwz  %r31, 224(%r1)  # restore R31
    lwz  %r3,  228(%r1)  # restore hidden

    # restore CR
    lwz   %r0, 232(%r1)
    mtcr  %r0
    # restore LR
    lwz   %r0, 236(%r1)
    mtlr  %r0
    # load PC
    lwz   %r0, 240(%r1)
    # restore CTR
    mtctr %r0

    # adjust stack
    addi  %r1, %r1, 244

    # return transfer_t 
    stw  %r6, 0(%r3)
    stw  %r5, 4(%r3)

    # jump to context
    bctr
.size jump_fcontext, .-jump_fcontext

/* Mark that we don't need executable stack.  */
.section .note.GNU-stack,"",%progbits
Commit	Line	Data
7c673cae FG	1	/*
	2	Copyright Oliver Kowalke 2009.
	3	Distributed under the Boost Software License, Version 1.0.
	4	(See accompanying file LICENSE_1_0.txt or copy at
	5	http://www.boost.org/LICENSE_1_0.txt)
	6	*/
	7
b32b8144	8	/******************************************************
7c673cae FG	9	* *
	10	* ------------------------------------------------- *
	11	* \| 0 \| 1 \| 2 \| 3 \| 4 \| 5 \| 6 \| 7 \| *
	12	* ------------------------------------------------- *
	13	* \| 0 \| 4 \| 8 \| 12 \| 16 \| 20 \| 24 \| 28 \| *
	14	* ------------------------------------------------- *
b32b8144	15	* \| F14 \| F15 \| F16 \| F17 \| *
7c673cae FG	16	* ------------------------------------------------- *
	17	* ------------------------------------------------- *
	18	* \| 8 \| 9 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15 \| *
	19	* ------------------------------------------------- *
	20	* \| 32 \| 36 \| 40 \| 44 \| 48 \| 52 \| 56 \| 60 \| *
	21	* ------------------------------------------------- *
b32b8144	22	* \| F18 \| F19 \| F20 \| F21 \| *
7c673cae FG	23	* ------------------------------------------------- *
	24	* ------------------------------------------------- *
	25	* \| 16 \| 17 \| 18 \| 19 \| 20 \| 21 \| 22 \| 23 \| *
	26	* ------------------------------------------------- *
	27	* \| 64 \| 68 \| 72 \| 76 \| 80 \| 84 \| 88 \| 92 \| *
	28	* ------------------------------------------------- *
b32b8144	29	* \| F22 \| F23 \| F24 \| F25 \| *
7c673cae FG	30	* ------------------------------------------------- *
	31	* ------------------------------------------------- *
	32	* \| 24 \| 25 \| 26 \| 27 \| 28 \| 29 \| 30 \| 31 \| *
	33	* ------------------------------------------------- *
	34	* \| 96 \| 100 \| 104 \| 108 \| 112 \| 116 \| 120 \| 124 \| *
	35	* ------------------------------------------------- *
b32b8144 FG	36	* \| F26 \| F27 \| F28 \| F29 \| *
	37	* ------------------------------------------------- *
	38	* ------------------------------------------------- *
	39	* \| 32 \| 33 \| 34 \| 35 \| 36 \| 37 \| 38 \| 39 \| *
	40	* ------------------------------------------------- *
	41	* \| 128 \| 132 \| 136 \| 140 \| 144 \| 148 \| 152 \| 156 \| *
	42	* ------------------------------------------------- *
	43	* \| F30 \| F31 \| fpscr \| R13 \| R14 \| *
	44	* ------------------------------------------------- *
	45	* ------------------------------------------------- *
	46	* \| 40 \| 41 \| 42 \| 43 \| 44 \| 45 \| 46 \| 47 \| *
	47	* ------------------------------------------------- *
	48	* \| 160 \| 164 \| 168 \| 172 \| 176 \| 180 \| 184 \| 188 \| *
	49	* ------------------------------------------------- *
	50	* \| R15 \| R16 \| R17 \| R18 \| R19 \| R20 \| R21 \| R22 \| *
	51	* ------------------------------------------------- *
	52	* ------------------------------------------------- *
	53	* \| 48 \| 49 \| 50 \| 51 \| 52 \| 53 \| 54 \| 55 \| *
	54	* ------------------------------------------------- *
	55	* \| 192 \| 196 \| 200 \| 204 \| 208 \| 212 \| 216 \| 220 \| *
	56	* ------------------------------------------------- *
	57	* \| R23 \| R24 \| R25 \| R26 \| R27 \| R28 \| R29 \| R30 \| *
	58	* ------------------------------------------------- *
	59	* ------------------------------------------------- *
	60	* \| 56 \| 57 \| 58 \| 59 \| 60 \| 61 \| 62 \| 63 \| *
	61	* ------------------------------------------------- *
	62	* \| 224 \| 228 \| 232 \| 236 \| 240 \| 244 \| 248 \| 252 \| *
	63	* ------------------------------------------------- *
	64	* \| R31 \|hiddn\| CR \| LR \| PC \|bchai\|linkr\| FCTX\| *
	65	* ------------------------------------------------- *
	66	* ------------------------------------------------- *
	67	* \| 64 \| \| *
	68	* ------------------------------------------------- *
	69	* \| 256 \| \| *
	70	* ------------------------------------------------- *
	71	* \| DATA\| \| *
7c673cae FG	72	* ------------------------------------------------- *
	73	* *
	74	*******************************************************/
	75
	76	.text
	77	.globl jump_fcontext
	78	.align 2
	79	.type jump_fcontext,@function
	80	jump_fcontext:
	81	# reserve space on stack
b32b8144	82	subi %r1, %r1, 244
7c673cae	83
b32b8144 FG	84	stfd %f14, 0(%r1) # save F14
	85	stfd %f15, 8(%r1) # save F15
	86	stfd %f16, 16(%r1) # save F16
	87	stfd %f17, 24(%r1) # save F17
	88	stfd %f18, 32(%r1) # save F18
	89	stfd %f19, 40(%r1) # save F19
	90	stfd %f20, 48(%r1) # save F20
	91	stfd %f21, 56(%r1) # save F21
	92	stfd %f22, 64(%r1) # save F22
	93	stfd %f23, 72(%r1) # save F23
	94	stfd %f24, 80(%r1) # save F24
	95	stfd %f25, 88(%r1) # save F25
	96	stfd %f26, 96(%r1) # save F26
	97	stfd %f27, 104(%r1) # save F27
	98	stfd %f28, 112(%r1) # save F28
	99	stfd %f29, 120(%r1) # save F29
	100	stfd %f30, 128(%r1) # save F30
	101	stfd %f31, 136(%r1) # save F31
	102	mffs %f0 # load FPSCR
	103	stfd %f0, 144(%r1) # save FPSCR
	104
	105	stw %r13, 152(%r1) # save R13
	106	stw %r14, 156(%r1) # save R14
	107	stw %r15, 160(%r1) # save R15
	108	stw %r16, 164(%r1) # save R16
	109	stw %r17, 168(%r1) # save R17
	110	stw %r18, 172(%r1) # save R18
	111	stw %r19, 176(%r1) # save R19
	112	stw %r20, 180(%r1) # save R20
	113	stw %r21, 184(%r1) # save R21
	114	stw %r22, 188(%r1) # save R22
	115	stw %r23, 192(%r1) # save R23
	116	stw %r24, 196(%r1) # save R24
	117	stw %r25, 200(%r1) # save R25
	118	stw %r26, 204(%r1) # save R26
	119	stw %r27, 208(%r1) # save R27
	120	stw %r28, 212(%r1) # save R28
	121	stw %r29, 216(%r1) # save R29
	122	stw %r30, 220(%r1) # save R30
	123	stw %r31, 224(%r1) # save R31
	124	stw %r3, 228(%r1) # save hidden
7c673cae FG	125
	126	# save CR
	127	mfcr %r0
b32b8144	128	stw %r0, 232(%r1)
7c673cae FG	129	# save LR
7c673cae FG	130	mflr %r0
b32b8144	131	stw %r0, 236(%r1)
7c673cae	132	# save LR as PC
b32b8144	133	stw %r0, 240(%r1)
7c673cae FG	134
	135	# store RSP (pointing to context-data) in R6
	136	mr %r6, %r1
	137
	138	# restore RSP (pointing to context-data) from R4
	139	mr %r1, %r4
	140
b32b8144 FG	141	lfd %f14, 0(%r1) # restore F14
	142	lfd %f15, 8(%r1) # restore F15
	143	lfd %f16, 16(%r1) # restore F16
	144	lfd %f17, 24(%r1) # restore F17
	145	lfd %f18, 32(%r1) # restore F18
	146	lfd %f19, 40(%r1) # restore F19
	147	lfd %f20, 48(%r1) # restore F20
	148	lfd %f21, 56(%r1) # restore F21
	149	lfd %f22, 64(%r1) # restore F22
	150	lfd %f23, 72(%r1) # restore F23
	151	lfd %f24, 80(%r1) # restore F24
	152	lfd %f25, 88(%r1) # restore F25
	153	lfd %f26, 96(%r1) # restore F26
	154	lfd %f27, 104(%r1) # restore F27
	155	lfd %f28, 112(%r1) # restore F28
	156	lfd %f29, 120(%r1) # restore F29
	157	lfd %f30, 128(%r1) # restore F30
	158	lfd %f31, 136(%r1) # restore F31
	159	lfd %f0, 144(%r1) # load FPSCR
	160	mtfsf 0xff, %f0 # restore FPSCR
	161
	162	lwz %r13, 152(%r1) # restore R13
	163	lwz %r14, 156(%r1) # restore R14
	164	lwz %r15, 160(%r1) # restore R15
	165	lwz %r16, 164(%r1) # restore R16
	166	lwz %r17, 168(%r1) # restore R17
	167	lwz %r18, 172(%r1) # restore R18
	168	lwz %r19, 176(%r1) # restore R19
	169	lwz %r20, 180(%r1) # restore R20
	170	lwz %r21, 184(%r1) # restore R21
	171	lwz %r22, 188(%r1) # restore R22
	172	lwz %r23, 192(%r1) # restore R23
	173	lwz %r24, 196(%r1) # restore R24
	174	lwz %r25, 200(%r1) # restore R25
	175	lwz %r26, 204(%r1) # restore R26
	176	lwz %r27, 208(%r1) # restore R27
	177	lwz %r28, 212(%r1) # restore R28
	178	lwz %r29, 216(%r1) # restore R29
	179	lwz %r30, 220(%r1) # restore R30
	180	lwz %r31, 224(%r1) # restore R31
	181	lwz %r3, 228(%r1) # restore hidden
7c673cae FG	182
7c673cae FG	183	# restore CR
b32b8144	184	lwz %r0, 232(%r1)
7c673cae FG	185	mtcr %r0
7c673cae FG	186	# restore LR
b32b8144	187	lwz %r0, 236(%r1)
7c673cae FG	188	mtlr %r0
7c673cae FG	189	# load PC
b32b8144	190	lwz %r0, 240(%r1)
7c673cae FG	191	# restore CTR
	192	mtctr %r0
	193
	194	# adjust stack
b32b8144	195	addi %r1, %r1, 244
7c673cae FG	196
	197	# return transfer_t
	198	stw %r6, 0(%r3)
	199	stw %r5, 4(%r3)
	200
	201	# jump to context
	202	bctr
	203	.size jump_fcontext, .-jump_fcontext
	204
	205	/* Mark that we don't need executable stack. */
	206	.section .note.GNU-stack,"",%progbits