MAJOR=4
MINOR=29
DEVNAME=tty29
  +   €l–Ь4э( ©і( 	ЕЂfаB¦-яї„_t?_†I|ҐЏ+ГВ ?ч     // SPDX-License-Identifier: GPL-2.0-or-later
/*
 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
 */

#include "dtc.h"
#include "srcpos.h"

#define FTF_FULLPATH	0x1
#define FTF_VARALIGN	0x2
#define FTF_NAMEPROPS	0x4
#define FTF_BOOTCPUID	0x8
#define FTF_STRTABSIZE	0x10
#define FTF_STRUCTSIZE	0x20
#define FTF_NOPS	0x40

static struct version_info {
	int version;
	int last_comp_version;
	int hdr_size;
	int flags;
} version_table[] = {
	{1, 1, FDT_V1_SIZE,
	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS},
	{2, 1, FDT_V2_SIZE,
	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID},
	{3, 1, FDT_V3_SIZE,
	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID|FTF_STRTABSIZE},
	{16, 16, FDT_V3_SIZE,
	 FTF_BOOTCPUID|FTF_STRTABSIZE|FTF_NOPS},
	{17, 16, FDT_V17_SIZE,
	 FTF_BOOTCPUID|FTF_STRTABSIZE|FTF_STRUCTSIZE|FTF_NOPS},
};

struct emitter {
	void (*cell)(void *, cell_t);
	void (*string)(void *, const char *, int);
	void (*align)(void *, int);
	void (*data)(void *, struct data);
	void (*beginnode)(void *, struct label *labels);
	void (*endnode)(void *, struct label *labels);
	void (*property)(void *, struct label *labels);
};

static void bin_emit_cell(void *e, cell_t val)
{
	struct data *dtbuf = e;

	*dtbuf = data_append_cell(*dtbuf, val);
}

static void bin_emit_string(void *e, const char *str, int len)
{
	struct data *dtbuf = e;

	if (len == 0)
		len = strlen(str);

	*dtbuf = data_append_data(*dtbuf, str, len);
	*dtbuf = data_append_byte(*dtbuf, '\0');
}

static void bin_emit_align(void *e, int a)
{
	struct data *dtbuf = e;

	*dtbuf = data_append_align(*dtbuf, a);
}

static void bin_emit_data(void *e, struct data d)
{
	struct data *dtbuf = e;

	*dtbuf = data_append_data(*dtbuf, d.val, d.len);
}

static void bin_emit_beginnode(void *e, struct label *labels)
{
	bin_emit_cell(e, FDT_BEGIN_NODE);
}

static void bin_emit_endnode(void *e, struct label *labels)
{
	bin_emit_cell(e, FDT_END_NODE);
}

static void bin_emit_property(void *e, struct label *labels)
{
	bin_emit_cell(e, FDT_PROP);
}

static struct emitter bin_emitter = {
	.cell = bin_emit_cell,
	.string = bin_emit_string,
	.align = bin_emit_align,
	.data = bin_emit_data,
	.beginnode = bin_emit_beginnode,
	.endnode = bin_emit_endnode,
	.property = bin_emit_property,
};

static void emit_label(FILE *f, const char *prefix, const char *label)
{
	fprintf(f, "\t.globl\t%s_%s\n", prefix, label);
	fprintf(f, "%s_%s:\n", prefix, label);
	fprintf(f, "_%s_%s:\n", prefix, label);
}

static void emit_offset_label(FILE *f, const char *label, int offset)
{
	fprintf(f, "\t.globl\t%s\n", label);
	fprintf(f, "%s\t= . + %d\n", label, offset);
}

#define ASM_EMIT_BELONG(f, fmt, ...) \
	{ \
		fprintf((f), "\t.byte\t((" fmt ") >> 24) & 0xff\n", __VA_ARGS__); \
		fprintf((f), "\t.byte\t((" fmt ") >> 16) & 0xff\n", __VA_ARGS__); \
		fprintf((f), "\t.byte\t((" fmt ") >> 8) & 0xff\n", __VA_ARGS__); \
		fprintf((f), "\t.byte\t(" fmt ") & 0xff\n", __VA_ARGS__); \
	}

static void asm_emit_cell(void *e, cell_t val)
{
	FILE *f = e;

	fprintf(f, "\t.byte 0x%02x; .byte 0x%02x; .byte 0x%02x; .byte 0x%02x\n",
		(val >> 24) & 0xff, (val >> 16) & 0xff,
		(val >> 8) & 0xff, val & 0xff);
}

static void asm_emit_string(void *e, const char *str, int len)
{
	FILE *f = e;

	if (len != 0)
		fprintf(f, "\t.string\t\"%.*s\"\n", len, str);
	else
		fprintf(f, "\t.string\t\"%s\"\n", str);
}

static void asm_emit_align(void *e, int a)
{
	FILE *f = e;

	fprintf(f, "\t.balign\t%d, 0\n", a);
}

static void asm_emit_data(void *e, struct data d)
{
	FILE *f = e;
	unsigned int off = 0;
	struct marker *m = d.markers;

	for_each_marker_of_type(m, LABEL)
		emit_offset_label(f, m->ref, m->offset);

	while ((d.len - off) >= sizeof(uint32_t)) {
		asm_emit_cell(e, dtb_ld32(d.val + off));
		off += sizeof(uint32_t);
	}

	while ((d.len - off) >= 1) {
		fprintf(f, "\t.byte\t0x%hhx\n", d.val[off]);
		off += 1;
	}

	assert(off == d.len);
}

static void asm_emit_beginnode(void *e, struct label *labels)
{
	FILE *f = e;
	struct label *l