1 files changed, 145 insertions, 0 deletions
diff --git a/include/asm-m32r/flat.h b/include/asm-m32r/flat.h
new file mode 100644
index 000000000000..1b285f65cab6
--- /dev/null
+++ b/include/asm-m32r/flat.h
@@ -0,0 +1,145 @@
+/*
+ * include/asm-m32r/flat.h
+ *
+ * uClinux flat-format executables
+ *
+ * Copyright (C) 2004  Kazuhiro Inaoka
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive for
+ * more details.
+ */
+#ifndef __ASM_M32R_FLAT_H
+#define __ASM_M32R_FLAT_H
+#define flat_stack_align(sp)            (*sp += (*sp & 3 ? (4 - (*sp & 3)): 0))
+#define flat_argvp_envp_on_stack()              0
+#define flat_old_ram_flag(flags)                (flags)
+#define flat_reloc_valid(reloc, size)           \
+        (((reloc) - textlen_for_m32r_lo16_data) <= (size))
+#define flat_get_addr_from_rp(rp, relval, flags) \
+        m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
+#define flat_put_addr_at_rp(rp, addr, relval) \
+        m32r_flat_put_addr_at_rp(rp, addr, relval)
+/* Convert a relocation entry into an address.  */
+static inline unsigned long
+flat_get_relocate_addr (unsigned long relval)
+{
+        return relval & 0x00ffffff; /* Mask out top 8-bits */
+}
+#define flat_m32r_get_reloc_type(relval)        ((relval) >> 24)
+#define M32R_SETH_OPCODE        0xd0c00000 /* SETH instruction code */
+#define FLAT_M32R_32            0x00    /* 32bits reloc */
+#define FLAT_M32R_24            0x01    /* unsigned 24bits reloc */
+#define FLAT_M32R_16            0x02    /* 16bits reloc */
+#define FLAT_M32R_LO16          0x03    /* signed low 16bits reloc (low()) */
+#define FLAT_M32R_LO16_DATA     0x04    /* signed low 16bits reloc (low())
+                                           for a symbol in .data section */
+                                        /* High 16bits of an address used
+                                           when the lower 16bbits are treated
+                                           as unsigned.
+                                           To create SETH instruction only.
+                                           0x1X: X means a number of register.
+                                           0x10 - 0x3F are reserved. */
+#define FLAT_M32R_HI16_ULO      0x10    /* reloc for SETH Rn,#high(imm16) */
+                                        /* High 16bits of an address used
+                                           when the lower 16bbits are treated
+                                           as signed.
+                                           To create SETH instruction only.
+                                           0x2X: X means a number of register.
+                                           0x20 - 0x4F are reserved. */
+#define FLAT_M32R_HI16_SLO      0x20    /* reloc for SETH Rn,#shigh(imm16) */
+static unsigned long textlen_for_m32r_lo16_data = 0;
+static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
+                                                        unsigned long relval,
+                                                        unsigned long textlen)
+{
+        unsigned int reloc = flat_m32r_get_reloc_type (relval);
+        textlen_for_m32r_lo16_data = 0;
+        if (reloc & 0xf0) {
+                unsigned long addr = htonl(*rp);
+                switch (reloc & 0xf0)
+                {
+                case FLAT_M32R_HI16_ULO:
+                case FLAT_M32R_HI16_SLO:
+                        if (addr == 0) {
+                                /* put "seth Rn,#0x0" instead of 0 (addr). */
+                                *rp = (M32R_SETH_OPCODE | ((reloc & 0x0f)<<24));
+                        }
+                        return addr;
+                default:
+                        break;
+                }
+        } else {
+                switch (reloc)
+                {
+                case FLAT_M32R_LO16:
+                        return htonl(*rp) & 0xFFFF;
+                case FLAT_M32R_LO16_DATA:
+                        /* FIXME: The return value will decrease by textlen
+                           at m32r_flat_put_addr_at_rp () */
+                        textlen_for_m32r_lo16_data = textlen;
+                        return (htonl(*rp) & 0xFFFF) + textlen;
+                case FLAT_M32R_16:
+                        return htons(*(unsigned short *)rp) & 0xFFFF;
+                case FLAT_M32R_24:
+                        return htonl(*rp) & 0xFFFFFF;
+                case FLAT_M32R_32:
+                        return htonl(*rp);
+                default:
+                        break;
+                }
+        }
+        return ~0;      /* bogus value */
+}
+static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
+                                             unsigned long addr,
+                                             unsigned long relval)
+{
+        unsigned int reloc = flat_m32r_get_reloc_type (relval);
+        if (reloc & 0xf0) {
+                unsigned long Rn = reloc & 0x0f; /* get a number of register */
+                Rn <<= 24; /* 0x0R000000 */
+                reloc &= 0xf0;
+                switch (reloc)
+                {
+                case FLAT_M32R_HI16_ULO: /* To create SETH Rn,#high(imm16) */
+                        *rp = (M32R_SETH_OPCODE | Rn
+                               | ((addr >> 16) & 0xFFFF));
+                        break;
+                case FLAT_M32R_HI16_SLO: /* To create SETH Rn,#shigh(imm16) */
+                        *rp = (M32R_SETH_OPCODE | Rn
+                               | (((addr >> 16) + ((addr & 0x8000) ? 1 : 0))
+                                  & 0xFFFF));
+                        break;
+                }
+        } else {
+                switch (reloc) {
+                case FLAT_M32R_LO16_DATA:
+                        addr -= textlen_for_m32r_lo16_data;
+                        textlen_for_m32r_lo16_data = 0;
+                case FLAT_M32R_LO16:
+                        *rp = (htonl(*rp) & 0xFFFF0000) | (addr & 0xFFFF);
+                        break;
+                case FLAT_M32R_16:
+                        *(unsigned short *)rp = addr & 0xFFFF;
+                        break;
+                case FLAT_M32R_24:
+                        *rp = (htonl(*rp) & 0xFF000000) | (addr & 0xFFFFFF);
+                        break;
+                case FLAT_M32R_32:
+                        *rp = addr;
+                        break;
+                }
+        }
+}
+#endif /* __ASM_M32R_FLAT_H */

diff --git a/include/asm-m32r/flat.h b/include/asm-m32r/flat.h new file mode 100644 index 000000000000..1b285f65cab6 --- /dev/null +++ b/include/asm-m32r/flat.h
@@ -0,0 +1,145 @@
	1	/*
	2	* include/asm-m32r/flat.h
	3	*
	4	* uClinux flat-format executables
	5	*
	6	* Copyright (C) 2004 Kazuhiro Inaoka
	7	*
	8	* This file is subject to the terms and conditions of the GNU General Public
	9	* License. See the file "COPYING" in the main directory of this archive for
	10	* more details.
	11	*/
	12	#ifndef __ASM_M32R_FLAT_H
	13	#define __ASM_M32R_FLAT_H
	14
	15	#define flat_stack_align(sp) (sp += (sp & 3 ? (4 - (*sp & 3)): 0))
	16	#define flat_argvp_envp_on_stack() 0
	17	#define flat_old_ram_flag(flags) (flags)
	18	#define flat_reloc_valid(reloc, size) \
	19	(((reloc) - textlen_for_m32r_lo16_data) <= (size))
	20	#define flat_get_addr_from_rp(rp, relval, flags) \
	21	m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
	22
	23	#define flat_put_addr_at_rp(rp, addr, relval) \
	24	m32r_flat_put_addr_at_rp(rp, addr, relval)
	25
	26	/* Convert a relocation entry into an address. */
	27	static inline unsigned long
	28	flat_get_relocate_addr (unsigned long relval)
	29	{
	30	return relval & 0x00ffffff; /* Mask out top 8-bits */
	31	}
	32
	33	#define flat_m32r_get_reloc_type(relval) ((relval) >> 24)
	34
	35	#define M32R_SETH_OPCODE 0xd0c00000 /* SETH instruction code */
	36
	37	#define FLAT_M32R_32 0x00 /* 32bits reloc */
	38	#define FLAT_M32R_24 0x01 /* unsigned 24bits reloc */
	39	#define FLAT_M32R_16 0x02 /* 16bits reloc */
	40	#define FLAT_M32R_LO16 0x03 /* signed low 16bits reloc (low()) */
	41	#define FLAT_M32R_LO16_DATA 0x04 /* signed low 16bits reloc (low())
	42	for a symbol in .data section */
	43	/* High 16bits of an address used
	44	when the lower 16bbits are treated
	45	as unsigned.
	46	To create SETH instruction only.
	47	0x1X: X means a number of register.
	48	0x10 - 0x3F are reserved. */
	49	#define FLAT_M32R_HI16_ULO 0x10 /* reloc for SETH Rn,#high(imm16) */
	50	/* High 16bits of an address used
	51	when the lower 16bbits are treated
	52	as signed.
	53	To create SETH instruction only.
	54	0x2X: X means a number of register.
	55	0x20 - 0x4F are reserved. */
	56	#define FLAT_M32R_HI16_SLO 0x20 /* reloc for SETH Rn,#shigh(imm16) */
	57
	58	static unsigned long textlen_for_m32r_lo16_data = 0;
	59
	60	static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
	61	unsigned long relval,
	62	unsigned long textlen)
	63	{
	64	unsigned int reloc = flat_m32r_get_reloc_type (relval);
	65	textlen_for_m32r_lo16_data = 0;
	66	if (reloc & 0xf0) {
	67	unsigned long addr = htonl(*rp);
	68	switch (reloc & 0xf0)
	69	{
	70	case FLAT_M32R_HI16_ULO:
	71	case FLAT_M32R_HI16_SLO:
	72	if (addr == 0) {
	73	/* put "seth Rn,#0x0" instead of 0 (addr). */
	74	*rp = (M32R_SETH_OPCODE \| ((reloc & 0x0f)<<24));
	75	}
	76	return addr;
	77	default:
	78	break;
	79	}
	80	} else {
	81	switch (reloc)
	82	{
	83	case FLAT_M32R_LO16:
	84	return htonl(*rp) & 0xFFFF;
	85	case FLAT_M32R_LO16_DATA:
	86	/* FIXME: The return value will decrease by textlen
	87	at m32r_flat_put_addr_at_rp () */
	88	textlen_for_m32r_lo16_data = textlen;
	89	return (htonl(*rp) & 0xFFFF) + textlen;
	90	case FLAT_M32R_16:
	91	return htons((unsigned short )rp) & 0xFFFF;
	92	case FLAT_M32R_24:
	93	return htonl(*rp) & 0xFFFFFF;
	94	case FLAT_M32R_32:
	95	return htonl(*rp);
	96	default:
	97	break;
	98	}
	99	}
	100	return ~0; /* bogus value */
	101	}
	102
	103	static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
	104	unsigned long addr,
	105	unsigned long relval)
	106	{
	107	unsigned int reloc = flat_m32r_get_reloc_type (relval);
	108	if (reloc & 0xf0) {
	109	unsigned long Rn = reloc & 0x0f; /* get a number of register */
	110	Rn <<= 24; /* 0x0R000000 */
	111	reloc &= 0xf0;
	112	switch (reloc)
	113	{
	114	case FLAT_M32R_HI16_ULO: /* To create SETH Rn,#high(imm16) */
	115	*rp = (M32R_SETH_OPCODE \| Rn
	116	\| ((addr >> 16) & 0xFFFF));
	117	break;
	118	case FLAT_M32R_HI16_SLO: /* To create SETH Rn,#shigh(imm16) */
	119	*rp = (M32R_SETH_OPCODE \| Rn
	120	\| (((addr >> 16) + ((addr & 0x8000) ? 1 : 0))
	121	& 0xFFFF));
	122	break;
	123	}
	124	} else {
	125	switch (reloc) {
	126	case FLAT_M32R_LO16_DATA:
	127	addr -= textlen_for_m32r_lo16_data;
	128	textlen_for_m32r_lo16_data = 0;
	129	case FLAT_M32R_LO16:
	130	rp = (htonl(rp) & 0xFFFF0000) \| (addr & 0xFFFF);
	131	break;
	132	case FLAT_M32R_16:
	133	(unsigned short )rp = addr & 0xFFFF;
	134	break;
	135	case FLAT_M32R_24:
	136	rp = (htonl(rp) & 0xFF000000) \| (addr & 0xFFFFFF);
	137	break;
	138	case FLAT_M32R_32:
	139	*rp = addr;
	140	break;
	141	}
	142	}
	143	}
	144
	145	#endif /* __ASM_M32R_FLAT_H */