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/*
 * 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_argvp_envp_on_stack()		0
#define	flat_old_ram_flag(flags)		(flags)
#define	flat_set_persistent(relval, p)		0
#define	flat_reloc_valid(reloc, size)		\
	(((reloc) - textlen_for_m32r_lo16_data) <= (size))

/* 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 (u32 *rp,
                                                        u32 relval,
						        u32 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 int flat_put_addr_at_rp(u32 *rp, u32 addr, u32 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;
		}
	}
	return 0;
}

// kludge - text_len is a local variable in the only user.
#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
	(m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)

#endif /* __ASM_M32R_FLAT_H */

Filemanager

Name Type Size Permission Actions
m32104ut Folder 0755
m32700ut Folder 0755
mappi2 Folder 0755
mappi3 Folder 0755
opsput Folder 0755
Kbuild File 318 B 0644
addrspace.h File 1.67 KB 0644
asm-offsets.h File 35 B 0644
assembler.h File 4.2 KB 0644
atomic.h File 6.29 KB 0644
barrier.h File 506 B 0644
bitops.h File 6.23 KB 0644
bug.h File 115 B 0644
bugs.h File 410 B 0644
cache.h File 222 B 0644
cachectl.h File 739 B 0644
cacheflush.h File 3.2 KB 0644
checksum.h File 4.83 KB 0644
cmpxchg.h File 4.86 KB 0644
dcache_clear.h File 1.01 KB 0644
delay.h File 31 B 0644
device.h File 148 B 0644
div64.h File 31 B 0644
dma-mapping.h File 570 B 0644
dma.h File 281 B 0644
elf.h File 3.64 KB 0644
emergency-restart.h File 188 B 0644
fb.h File 414 B 0644
flat.h File 4.2 KB 0644
ftrace.h File 12 B 0644
futex.h File 82 B 0644
hardirq.h File 214 B 0644
hw_irq.h File 87 B 0644
io.h File 6.44 KB 0644
irq.h File 2.94 KB 0644
irq_regs.h File 34 B 0644
irqflags.h File 2.24 KB 0644
kdebug.h File 32 B 0644
kmap_types.h File 251 B 0644
linkage.h File 177 B 0644
local.h File 7.8 KB 0644
local64.h File 33 B 0644
m32102.h File 14.71 KB 0644
m32r.h File 5.7 KB 0644
m32r_mp_fpga.h File 14.89 KB 0644
mc146818rtc.h File 671 B 0644
mmu.h File 403 B 0644
mmu_context.h File 4.23 KB 0644
mmzone.h File 1.29 KB 0644
page.h File 2.62 KB 0644
pci.h File 147 B 0644
percpu.h File 165 B 0644
pgalloc.h File 1.84 KB 0644
pgtable-2level.h File 2.31 KB 0644
pgtable.h File 9.7 KB 0644
processor.h File 2.93 KB 0644
ptrace.h File 1.3 KB 0644
rtc.h File 1.99 KB 0644
s1d13806.h File 9.84 KB 0644
segment.h File 228 B 0644
serial.h File 187 B 0644
setup.h File 1022 B 0644
shmparam.h File 197 B 0644
signal.h File 561 B 0644
smp.h File 3.5 KB 0644
spinlock.h File 7.15 KB 0644
spinlock_types.h File 520 B 0644
string.h File 378 B 0644
switch_to.h File 1.48 KB 0644
syscall.h File 252 B 0644
termios.h File 1.74 KB 0644
thread_info.h File 3.71 KB 0644
timex.h File 581 B 0644
tlb.h File 483 B 0644
tlbflush.h File 2.94 KB 0644
topology.h File 167 B 0644
types.h File 258 B 0644
uaccess.h File 15.3 KB 0644
ucontext.h File 321 B 0644
unaligned.h File 592 B 0644
unistd.h File 1.23 KB 0644
user.h File 2.1 KB 0644
vga.h File 436 B 0644
xor.h File 148 B 0644