libfdt - library for manipulating device trees in flattened format
Initial revision, read-only and "in-place" (no memmove() required)
write operations only.
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4b147f1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+*.d
+*.o
+*.a
+*.so
+*~
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5f6f947
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,88 @@
+PREFIX = /usr/local
+TARGETLIBS = libfdt.a
+LIBOBJS = fdt.o fdt_ro.o fdt_wip.o #fdt_sw.o
+
+SOURCE = $(shell find . -maxdepth 1 ! -name version.h -a -name '*.[h]')
+SOURCE += *.c Makefile
+NODEPTARGETS=<clean>
+
+CPPFLAGS = -I.
+CFLAGS = -Wall -g
+
+LIBDIR = $(PREFIX)/$(LIB32)
+
+EXTRA_DIST = \
+ README \
+ HOWTO \
+ LGPL-2.1
+
+ifdef V
+VECHO = :
+else
+VECHO = echo " "
+ARFLAGS = rc
+.SILENT:
+endif
+
+DEPFILES = $(LIBOBJS:%.o=%.d)
+
+all: libs tests
+
+.PHONY: tests libs
+
+libs: $(TARGETLIBS)
+
+tests: tests/all
+
+tests/%: libs
+ $(MAKE) -C tests $*
+
+check: all
+ cd tests; ./run_tests.sh
+
+checkv: all
+ cd tests; ./run_tests.sh -v
+
+func: all
+ cd tests; ./run_tests.sh -t func
+
+funcv: all
+ cd tests; ./run_tests.sh -t func -v
+
+stress: all
+ cd tests; ./run_tests.sh -t stress
+
+stressv: all
+ cd tests; ./run_tests.sh -t stress -v
+
+%.o: %.c
+ @$(VECHO) CC $@
+ $(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<
+
+libfdt.a: $(LIBOBJS)
+ @$(VECHO) AR $@
+ $(AR) $(ARFLAGS) $@ $^
+
+%.i: %.c
+ @$(VECHO) CPP $@
+ $(CC) $(CPPFLAGS) -E $< > $@
+
+%.s: %.c
+ @$(VECHO) CC -S $@
+ $(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -S $<
+
+clean:
+ @$(VECHO) CLEAN
+ rm -f *~ *.o *.so *.a *.d *.i *.s core a.out $(VERSION)
+ $(MAKE) -C tests clean
+
+%.d: %.c
+ @$(CC) $(CPPFLAGS) -MM -MT "$*.o $@" $< > $@
+
+# Workaround: Don't build dependencies for certain targets
+# When the include below is executed, make will use the %.d target above to
+# generate missing files. For certain targets (clean, version.h, etc) we don't
+# need or want these dependency files, so don't include them in this case.
+ifeq (,$(findstring <$(MAKECMDGOALS)>,$(NODEPTARGETS)))
+-include $(DEPFILES)
+endif
diff --git a/fdt.c b/fdt.c
new file mode 100644
index 0000000..0de7f68
--- /dev/null
+++ b/fdt.c
@@ -0,0 +1,94 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+void *fdt_offset_ptr(const struct fdt_header *fdt, int offset, int len)
+{
+ void *p;
+
+ p = (void *)fdt + fdt32_to_cpu(fdt->off_dt_struct) + offset;
+
+ if (p + len < p)
+ return NULL;
+ return p;
+}
+
+char *fdt_string(const struct fdt_header *fdt, int stroffset)
+{
+ return (char *)fdt + fdt32_to_cpu(fdt->off_dt_strings) + stroffset;
+}
+
+int fdt_string_cmp(const struct fdt_header *fdt, int stroffset, const char *s2)
+{
+ const char *s1 = fdt_string(fdt, stroffset);
+ int len = strlen(s2) + 1;
+
+ if (! s1)
+ return 0;
+
+ if ((stroffset + len < stroffset)
+ || (stroffset + len > fdt32_to_cpu(fdt->size_dt_strings)))
+ return -2;
+
+ return strcmp(s1, s2);
+}
+
+uint32_t _fdt_next_tag(const struct fdt_header *fdt, int offset, int *nextoffset)
+{
+ const uint32_t *tagp, *lenp;
+ uint32_t tag;
+ const char *p;
+
+ if (offset % FDT_TAGSIZE)
+ return -1;
+
+ tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);
+ if (! tagp)
+ return FDT_END; /* premature end */
+ tag = fdt32_to_cpu(*tagp);
+ offset += FDT_TAGSIZE;
+
+ switch (tag) {
+ case FDT_BEGIN_NODE:
+ /* skip name */
+ do {
+ p = fdt_offset_ptr(fdt, offset++, 1);
+ } while (p && (*p != '\0'));
+ if (! p)
+ return FDT_END;
+ break;
+ case FDT_PROP:
+ lenp = fdt_offset_ptr(fdt, offset + FDT_TAGSIZE, sizeof(*lenp));
+ if (! lenp)
+ return FDT_END;
+ /* skip name offset, length and value */
+ offset += 2*FDT_TAGSIZE + fdt32_to_cpu(*lenp);
+ break;
+ }
+
+ if (nextoffset)
+ *nextoffset = ALIGN(offset, FDT_TAGSIZE);
+
+ return tag;
+}
diff --git a/fdt.h b/fdt.h
new file mode 100644
index 0000000..10b5544
--- /dev/null
+++ b/fdt.h
@@ -0,0 +1,58 @@
+#ifndef _FDT_H
+#define _FDT_H
+
+#ifndef __ASSEMBLY__
+
+#include <stdint.h>
+
+struct fdt_header {
+ uint32_t magic; /* magic word FDT_MAGIC */
+ uint32_t totalsize; /* total size of DT block */
+ uint32_t off_dt_struct; /* offset to structure */
+ uint32_t off_dt_strings; /* offset to strings */
+ uint32_t off_mem_rsvmap; /* offset to memory reserve map */
+ uint32_t version; /* format version */
+ uint32_t last_comp_version; /* last compatible version */
+
+ /* version 2 fields below */
+ uint32_t boot_cpuid_phys; /* Which physical CPU id we're
+ booting on */
+ /* version 3 fields below */
+ uint32_t size_dt_strings; /* size of the strings block */
+};
+
+struct fdt_reserve_entry {
+ uint64_t address;
+ uint64_t size;
+};
+
+struct fdt_node_header {
+ uint32_t tag;
+ char name[0];
+};
+
+struct fdt_property {
+ uint32_t tag;
+ uint32_t nameoff;
+ uint32_t len;
+ char data[0];
+};
+
+#endif /* !__ASSEMBLY */
+
+#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
+#define FDT_TAGSIZE sizeof(uint32_t)
+
+#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
+#define FDT_END_NODE 0x2 /* End node */
+#define FDT_PROP 0x3 /* Property: name off,
+ size, content */
+#define FDT_NOP 0x4 /* nop */
+#define FDT_END 0x9
+
+#define FDT_V1_SIZE (7*sizeof(uint32_t))
+#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
+#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
+
+
+#endif /* _FDT_H */
diff --git a/fdt_ro.c b/fdt_ro.c
new file mode 100644
index 0000000..c2a0e72
--- /dev/null
+++ b/fdt_ro.c
@@ -0,0 +1,243 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+static int check_header(const struct fdt_header *fdt)
+{
+ if (fdt32_to_cpu(fdt->magic) != FDT_MAGIC)
+ return FDT_ERR_BADMAGIC;
+ if (fdt32_to_cpu(fdt->version) < FDT_FIRST_SUPPORTED_VERSION)
+ return FDT_ERR_BADVERSION;
+ if (fdt32_to_cpu(fdt->last_comp_version) > FDT_LAST_SUPPORTED_VERSION)
+ return FDT_ERR_BADVERSION;
+ return 0;
+}
+
+#define OFFSET_CHECK_HEADER(fdt) \
+ { \
+ int err; \
+ if ((err = check_header(fdt)) != 0) \
+ return OFFSET_ERROR(err); \
+ }
+
+static int offset_streq(const struct fdt_header *fdt, int offset,
+ const char *s, int len)
+{
+ const char *p = fdt_offset_ptr(fdt, offset, len+1);
+
+ if (! p)
+ /* short match */
+ return 0;
+
+ if (memcmp(p, s, len) != 0)
+ return 0;
+
+ if (p[len] != '\0')
+ return 0;
+
+ return 1;
+}
+
+int fdt_property_offset(const struct fdt_header *fdt, int nodeoffset,
+ const char *name)
+{
+ int level = 0;
+ uint32_t tag;
+ struct fdt_property *prop;
+ int namestroff;
+ int offset, nextoffset;
+
+ OFFSET_CHECK_HEADER(fdt);
+
+ if (nodeoffset % FDT_TAGSIZE)
+ return OFFSET_ERROR(FDT_ERR_BADOFFSET);
+
+ tag = _fdt_next_tag(fdt, nodeoffset, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return OFFSET_ERROR(FDT_ERR_BADOFFSET);
+
+ do {
+ offset = nextoffset;
+ if (offset % FDT_TAGSIZE)
+ return OFFSET_ERROR(FDT_ERR_INTERNAL);
+
+ tag = _fdt_next_tag(fdt, offset, &nextoffset);
+ switch (tag) {
+ case FDT_END:
+ return OFFSET_ERROR(FDT_ERR_TRUNCATED);
+
+ case FDT_BEGIN_NODE:
+ level++;
+ break;
+
+ case FDT_END_NODE:
+ level--;
+ break;
+
+ case FDT_PROP:
+ if (level != 0)
+ continue;
+
+ prop = fdt_offset_ptr_typed(fdt, offset, prop);
+ if (! prop)
+ return OFFSET_ERROR(FDT_ERR_BADSTRUCTURE);
+ namestroff = fdt32_to_cpu(prop->nameoff);
+ if (fdt_string_cmp(fdt, namestroff, name) == 0)
+ /* Found it! */
+ return offset;
+ break;
+
+ case FDT_NOP:
+ break;
+
+ default:
+ return OFFSET_ERROR(FDT_ERR_BADSTRUCTURE);
+ }
+ } while (level >= 0);
+
+ return OFFSET_ERROR(FDT_ERR_NOTFOUND);
+}
+
+int fdt_subnode_offset_namelen(const struct fdt_header *fdt, int parentoffset,
+ const char *name, int namelen)
+{
+ int level = 0;
+ uint32_t tag;
+ int offset, nextoffset;
+
+ OFFSET_CHECK_HEADER(fdt);
+
+ tag = _fdt_next_tag(fdt, parentoffset, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return OFFSET_ERROR(FDT_ERR_BADOFFSET);
+
+ do {
+ offset = nextoffset;
+ tag = _fdt_next_tag(fdt, offset, &nextoffset);
+
+ switch (tag) {
+ case FDT_END:
+ return OFFSET_ERROR(FDT_ERR_TRUNCATED);
+
+ case FDT_BEGIN_NODE:
+ level++;
+ if (level != 1)
+ continue;
+ if (offset_streq(fdt, offset+FDT_TAGSIZE, name, namelen))
+ /* Found it! */
+ return offset;
+ break;
+
+ case FDT_END_NODE:
+ level--;
+ break;
+
+ case FDT_PROP:
+ case FDT_NOP:
+ break;
+
+ default:
+ return OFFSET_ERROR(FDT_ERR_BADSTRUCTURE);
+ }
+ } while (level >= 0);
+
+ return OFFSET_ERROR(FDT_ERR_NOTFOUND);
+}
+
+int fdt_subnode_offset(const struct fdt_header *fdt, int parentoffset,
+ const char *name)
+{
+ return fdt_subnode_offset_namelen(fdt, parentoffset, name, strlen(name));
+}
+
+int fdt_path_offset(const struct fdt_header *fdt, const char *path)
+{
+ const char *end = path + strlen(path);
+ const char *p = path;
+ int offset = 0;
+
+ OFFSET_CHECK_HEADER(fdt);
+
+ if (*path != '/')
+ return OFFSET_ERROR(FDT_ERR_BADPATH);
+
+ while (*p) {
+ const char *q;
+
+ while (*p == '/')
+ p++;
+ if (! *p)
+ return OFFSET_ERROR(FDT_ERR_BADPATH);
+ q = strchr(p, '/');
+ if (! q)
+ q = end;
+
+ offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
+ if (fdt_offset_error(offset))
+ return offset;
+
+ p = q;
+ }
+
+ return offset;
+}
+
+struct fdt_property *_fdt_getprop(const struct fdt_header *fdt, int nodeoffset,
+ const char *name, int *lenp)
+{
+ int propoffset;
+ struct fdt_property *prop;
+ int err;
+ int len;
+
+ propoffset = fdt_property_offset(fdt, nodeoffset, name);
+ if ((err = fdt_offset_error(propoffset)))
+ return PTR_ERROR(err);
+
+ prop = fdt_offset_ptr(fdt, propoffset, sizeof(prop));
+ if (! prop)
+ return PTR_ERROR(FDT_ERR_BADSTRUCTURE);
+ len = fdt32_to_cpu(prop->len);
+ prop = fdt_offset_ptr(fdt, propoffset, sizeof(prop) + len);
+ if (! prop)
+ return PTR_ERROR(FDT_ERR_BADSTRUCTURE);
+
+ if (lenp)
+ *lenp = len;
+
+ return prop;
+}
+
+void *fdt_getprop(const struct fdt_header *fdt, int nodeoffset,
+ const char *name, int *lenp)
+{
+ const struct fdt_property *prop;
+ int err;
+
+ prop = _fdt_getprop(fdt, nodeoffset, name, lenp);
+ if ((err = fdt_ptr_error(prop)))
+ return PTR_ERROR(err);
+
+ return prop->data;
+}
diff --git a/fdt_wip.c b/fdt_wip.c
new file mode 100644
index 0000000..c8d07b3
--- /dev/null
+++ b/fdt_wip.c
@@ -0,0 +1,108 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+int fdt_setprop_inplace(struct fdt_header *fdt, int nodeoffset, const char *name,
+ const void *val, int len)
+{
+ void *propval;
+ int proplen;
+ int err;
+
+ propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
+ if ((err = fdt_ptr_error(propval)))
+ return err;
+
+ if (proplen != len)
+ return FDT_ERR_SIZE_MISMATCH;
+
+ memcpy(propval, val, len);
+ return 0;
+}
+
+static void nop_region(void *start, int len)
+{
+ uint32_t *p;
+
+ for (p = start; (void *)p < (start + len); p++)
+ *p = FDT_NOP;
+}
+
+int fdt_nop_property(struct fdt_header *fdt, int nodeoffset, const char *name)
+{
+ struct fdt_property *prop;
+ int len;
+ int err;
+
+ prop = _fdt_getprop(fdt, nodeoffset, name, &len);
+ if ((err = fdt_ptr_error(prop)))
+ return err;
+
+ nop_region(prop, len + sizeof(*prop));
+
+ return 0;
+}
+
+int fdt_nop_node(struct fdt_header *fdt, int nodeoffset)
+{
+ int level = 0;
+ int err = 0;
+ uint32_t tag;
+ int offset, nextoffset;
+
+ tag = _fdt_next_tag(fdt, nodeoffset, &nextoffset);
+ if (tag != FDT_BEGIN_NODE)
+ return FDT_ERR_BADOFFSET;
+
+ do {
+ offset = nextoffset;
+ tag = _fdt_next_tag(fdt, offset, &nextoffset);
+
+ switch (tag) {
+ case FDT_END:
+ level = -1;
+ err = FDT_ERR_TRUNCATED;
+ break;
+
+ case FDT_BEGIN_NODE:
+ level++;
+ break;
+
+ case FDT_END_NODE:
+ level--;
+ break;
+
+ case FDT_PROP:
+ case FDT_NOP:
+ break;
+
+ default:
+ return FDT_ERR_BADSTRUCTURE;
+ }
+ } while (level >= 0);
+
+ nop_region(fdt_offset_ptr(fdt, nodeoffset, 0), nextoffset - nodeoffset);
+
+ return err;
+}
diff --git a/libfdt.h b/libfdt.h
new file mode 100644
index 0000000..7f279a6
--- /dev/null
+++ b/libfdt.h
@@ -0,0 +1,107 @@
+#ifndef _LIBFDT_H
+#define _LIBFDT_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <fdt.h>
+
+#define FDT_FIRST_SUPPORTED_VERSION 0x10
+#define FDT_LAST_SUPPORTED_VERSION 0x10
+
+/* Errors */
+#define FDT_ERR_OK 0
+#define FDT_ERR_BADMAGIC 1
+#define FDT_ERR_BADVERSION 2
+#define FDT_ERR_BADPOINTER 3
+#define FDT_ERR_BADHEADER 4
+#define FDT_ERR_BADSTRUCTURE 5
+#define FDT_ERR_BADOFFSET 6
+#define FDT_ERR_NOTFOUND 7
+#define FDT_ERR_BADPATH 8
+#define FDT_ERR_TRUNCATED 9
+#define FDT_ERR_NOSPACE 10
+#define FDT_ERR_BADSTATE 11
+#define FDT_ERR_SIZE_MISMATCH 12
+#define FDT_ERR_INTERNAL 13
+
+#define FDT_ERR_MAX 13
+
+/* Offset handling functions */
+void *fdt_offset_ptr(const struct fdt_header *fdt, int offset, int checklen);
+
+#define fdt_offset_ptr_typed(fdt, offset, var) \
+ ((typeof(var))(fdt_offset_ptr((fdt), (offset), sizeof(*(var)))))
+
+#define fdt_offset_error(offset) \
+ ( (offset) < 0 ? -(offset) : 0 )
+
+#define fdt_ptr_error(ptr) \
+ ( (((long)(ptr) < 0) && ((long)(ptr) >= -FDT_ERR_MAX)) ? -(long)(ptr) : 0 )
+
+char *fdt_string(const struct fdt_header *fdt, int stroffset);
+int fdt_string_cmp(const struct fdt_header *fdt, int stroffset, const char *s2);
+
+/* Read-only functions */
+int fdt_property_offset(const struct fdt_header *fdt, int nodeoffset,
+ const char *name);
+int fdt_subnode_offset_namelen(const struct fdt_header *fdt, int parentoffset,
+ const char *name, int namelen);
+int fdt_subnode_offset(const struct fdt_header *fdt, int parentoffset,
+ const char *name);
+
+int fdt_path_offset(const struct fdt_header *fdt, const char *path);
+
+void *fdt_getprop(const struct fdt_header *fdt, int nodeoffset,
+ const char *name, int *lenp);
+
+/* Write-in-place functions */
+int fdt_setprop_inplace(struct fdt_header *fdt, int nodeoffset, const char *name,
+ const void *val, int len);
+
+#define fdt_setprop_inplace_typed(fdt, nodeoffset, name, val) \
+ ({ \
+ typeof(val) x = val; \
+ fdt_setprop_inplace(fdt, nodeoffset, name, &x, sizeof(x)); \
+ })
+
+int fdt_nop_property(struct fdt_header *fdt, int nodeoffset, const char *name);
+int fdt_nop_node(struct fdt_header *fdt, int nodeoffset);
+
+#if 0
+/* Sequential-write functions */
+struct fdt_header *fdt_create(void *buf, int bufsize);
+int fdt_add_reservemap_entry(struct fdt_header *fdt, uint64_t addr, uint64_t size);
+int fdt_begin_structure(struct fdt_header *fdt);
+int fdt_begin_node(struct fdt_header *fdt, const char *name);
+int fdt_property(struct fdt_header *fdt, const char *name, const void *val, int len);
+int fdt_end_node(struct fdt_header *fdt);
+int fdt_finish_structure(struct fdt_header *fdt);
+
+/* Read-write functions */
+struct fdt_header *fdt_open(struct fdt_header *fdt, int bufsize);
+int fdt_add_subnode(struct fdt_header *fdtx, void *node, const char *name);
+int fdt_set_property(struct fdt_header *fdtx, void *node, const char *name,
+ const void *val, int len);
+int fdt_del_property(struct fdt_header *fdtx, void *node, const char *name);
+
+/* Misc functions */
+struct fdt_header *fdt_move(struct fdt_header *fdt, void *buf, int bufsize);
+#endif
+
+#endif /* _LIBFDT_H */
diff --git a/libfdt_env.h b/libfdt_env.h
new file mode 100644
index 0000000..a9b196f
--- /dev/null
+++ b/libfdt_env.h
@@ -0,0 +1,19 @@
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define fdt32_to_cpu(x) (x)
+#define cpu_to_fdt32(x) (x)
+#define fdt64_to_cpu(x) (x)
+#define cpu_to_fdt64(x) (x)
+#else
+#define fdt32_to_cpu(x) (bswap_32((x)))
+#define cpu_to_fdt32(x) (bswap_32((x)))
+#define fdt64_to_cpu(x) (bswap_64((x)))
+#define cpu_to_fdt64(x) (bswap_64((x)))
+#endif
+
+#include "libfdt.h"
diff --git a/libfdt_internal.h b/libfdt_internal.h
new file mode 100644
index 0000000..1f9ba0c
--- /dev/null
+++ b/libfdt_internal.h
@@ -0,0 +1,39 @@
+#ifndef _LIBFDT_INTERNAL_H
+#define _LIBFDT_INTERNAL_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <fdt.h>
+
+#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
+#define PALIGN(p, a) ((void *)ALIGN((unsigned long)(p), (a)))
+
+#define memeq(p, q, n) (memcmp((p), (q), (n)) == 0)
+#define streq(p, q) (strcmp((p), (q)) == 0)
+
+uint32_t _fdt_next_tag(const struct fdt_header *fdt, int startoffset, int *nextoffset);
+struct fdt_property *_fdt_getprop(const struct fdt_header *fdt, int nodeoffset,
+ const char *name, int *lenp);
+
+
+#define OFFSET_ERROR(code) -(code)
+#define PTR_ERROR(code) (void *)(-(code))
+
+#define SW_OFFSET(fdt) ((fdt)->version)
+
+#endif /* _LIBFDT_INTERNAL_H */
diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/.gitignore
diff --git a/tests/Makefile b/tests/Makefile
new file mode 100644
index 0000000..7a517c7
--- /dev/null
+++ b/tests/Makefile
@@ -0,0 +1,50 @@
+PREFIX = /usr/local
+
+LIB_TESTS =
+LIBTREE_TESTS = root_node property_offset subnode_offset path_offset getprop \
+ notfound \
+ setprop_inplace nop_property nop_node
+TESTS = $(LIB_TESTS) $(LIBTREE_TESTS)
+
+CFLAGS = -Wall -g
+CPPFLAGS = -I..
+LDFLAGS = -L..
+
+LIBFDT = ../libfdt.a
+
+ifdef V
+VECHO = :
+else
+VECHO = echo " "
+.SILENT:
+endif
+
+DEPFILES = $(TESTS:%=%.d) testutils.d
+
+all: $(TESTS)
+
+%.o: %.c
+ @$(VECHO) CC $@
+ $(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<
+
+%.o: %.S
+ @$(VECHO) AS $@
+ $(CC) -D__ASSEMBLY__ $(CPPFLAGS) -o $@ -c $<
+
+$(LIB_TESTS): %: %.o testutils.o $(LIBFDT)
+ @$(VECHO) LD "(testcase)" $@
+ $(CC) $(LDFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+
+$(LIBTREE_TESTS): %: %.o testutils.o trees.o $(LIBFDT)
+ @$(VECHO) LD "(testcase + trees)" $@
+ $(CC) $(LDFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+
+clean:
+ @$(VECHO) CLEAN "(tests)"
+ rm -f *~ *.o *.so *.a *.d *.s core a.out
+ rm -f $(TESTS)
+
+%.d: %.c
+ @$(CC) $(CPPFLAGS) -MM -MT "$*.o $@" $< > $@
+
+-include $(DEPFILES)
diff --git a/tests/getprop.c b/tests/getprop.c
new file mode 100644
index 0000000..cfdd2ce
--- /dev/null
+++ b/tests/getprop.c
@@ -0,0 +1,41 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_getprop()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+
+ test_init(argc, argv);
+
+ check_getprop_typed(fdt, 0, "prop-int", TEST_VALUE_1);
+ check_getprop(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1, TEST_STRING_1);
+
+ PASS();
+}
diff --git a/tests/nop_node.c b/tests/nop_node.c
new file mode 100644
index 0000000..86d5d63
--- /dev/null
+++ b/tests/nop_node.c
@@ -0,0 +1,96 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_nop_node()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ int subnode1_offset, subnode2_offset, subsubnode2_offset;
+ int err;
+
+ test_init(argc, argv);
+
+ subnode1_offset = fdt_path_offset(fdt, "/subnode1");
+ if ((err = fdt_offset_error(subnode1_offset)))
+ FAIL("Couldn't find \"/subnode1\": %s", fdt_strerror(err));
+ check_getprop_typed(fdt, subnode1_offset, "prop-int", TEST_VALUE_1);
+
+ subnode2_offset = fdt_path_offset(fdt, "/subnode2");
+ if ((err = fdt_offset_error(subnode2_offset)))
+ FAIL("Couldn't find \"/subnode2\": %s", fdt_strerror(err));
+ check_getprop_typed(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
+
+ subsubnode2_offset = fdt_path_offset(fdt, "/subnode2/subsubnode");
+ if ((err = fdt_offset_error(subsubnode2_offset)))
+ FAIL("Couldn't find \"/subnode2/subsubnode\": %s",
+ fdt_strerror(err));
+ check_getprop_typed(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
+
+ err = fdt_nop_node(fdt, subnode1_offset);
+ if (err)
+ FAIL("fdt_nop_node(subnode1): %s", fdt_strerror(err));
+
+ subnode1_offset = fdt_path_offset(fdt, "/subnode1");
+ if ((err = fdt_offset_error(subnode1_offset)) != FDT_ERR_NOTFOUND)
+ FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",
+ fdt_strerror(err), fdt_strerror(FDT_ERR_NOTFOUND));
+
+ subnode2_offset = fdt_path_offset(fdt, "/subnode2");
+ if ((err = fdt_offset_error(subnode2_offset)))
+ FAIL("Couldn't find \"/subnode2\": %s", fdt_strerror(err));
+ check_getprop_typed(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
+
+ subsubnode2_offset = fdt_path_offset(fdt, "/subnode2/subsubnode");
+ if ((err = fdt_offset_error(subsubnode2_offset)))
+ FAIL("Couldn't find \"/subnode2/subsubnode\": %s",
+ fdt_strerror(err));
+ check_getprop_typed(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
+
+ err = fdt_nop_node(fdt, subnode2_offset);
+ if (err)
+ FAIL("fdt_nop_node(subnode2): %s", fdt_strerror(err));
+
+ subnode1_offset = fdt_path_offset(fdt, "/subnode1");
+ if ((err = fdt_offset_error(subnode1_offset)) != FDT_ERR_NOTFOUND)
+ FAIL("fdt_path_offset(subnode1) returned \"%s\" instead of \"%s\"",
+ fdt_strerror(err), fdt_strerror(FDT_ERR_NOTFOUND));
+
+ subnode2_offset = fdt_path_offset(fdt, "/subnode2");
+ if ((err = fdt_offset_error(subnode2_offset)) != FDT_ERR_NOTFOUND)
+ FAIL("fdt_path_offset(subnode2) returned \"%s\" instead of \"%s\"",
+ fdt_strerror(err), fdt_strerror(FDT_ERR_NOTFOUND));
+
+ subsubnode2_offset = fdt_path_offset(fdt, "/subnode2/subsubnode");
+ if ((err = fdt_offset_error(subsubnode2_offset)) != FDT_ERR_NOTFOUND)
+ FAIL("fdt_path_offset(subsubnode2) returned \"%s\" instead of \"%s\"",
+ fdt_strerror(err), fdt_strerror(FDT_ERR_NOTFOUND));
+
+ PASS();
+}
diff --git a/tests/nop_property.c b/tests/nop_property.c
new file mode 100644
index 0000000..af488d2
--- /dev/null
+++ b/tests/nop_property.c
@@ -0,0 +1,70 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_nop_property()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ uint32_t *intp;
+ char *strp;
+ int err;
+
+ test_init(argc, argv);
+
+ intp = check_getprop_typed(fdt, 0, "prop-int", TEST_VALUE_1);
+ verbose_printf("int value was 0x%08x\n", *intp);
+
+ err = fdt_nop_property(fdt, 0, "prop-int");
+ if (err)
+ FAIL("Failed to nop \"prop-int\": %s", fdt_strerror(err));
+
+ intp = fdt_getprop(fdt, 0, "prop-int", NULL);
+ err = fdt_ptr_error(intp);
+ if (! err)
+ FAIL("prop-int still present after nopping");
+ if (err != FDT_ERR_NOTFOUND)
+ FAIL("Unexpected error on second getprop: %s", fdt_strerror(err));
+
+ strp = check_getprop(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1,
+ TEST_STRING_1);
+ verbose_printf("string value was \"%s\"\n", strp);
+ err = fdt_nop_property(fdt, 0, "prop-str");
+ err = fdt_ptr_error(intp);
+ if (! err)
+ FAIL("prop-str still present after nopping");
+ if (err != FDT_ERR_NOTFOUND)
+ FAIL("Unexpected error on second getprop: %s", fdt_strerror(err));
+
+ strp = fdt_getprop(fdt, 0, "prop-str", NULL);
+ if (fdt_ptr_error(intp) != FDT_ERR_NOTFOUND)
+ FAIL("prop-str still present after nopping");
+
+ PASS();
+}
diff --git a/tests/notfound.c b/tests/notfound.c
new file mode 100644
index 0000000..106830e
--- /dev/null
+++ b/tests/notfound.c
@@ -0,0 +1,75 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for behaviour on searching for a non-existent node
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+void check_error(const char *s, int err)
+{
+ if (err != FDT_ERR_NOTFOUND)
+ FAIL("%s return error %s instead of FDT_ERR_NOTFOUND", s,
+ fdt_strerror(err));
+}
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ int offset;
+ int subnode1_offset;
+ void *val;
+ int err;
+
+ test_init(argc, argv);
+
+ offset = fdt_property_offset(fdt, 0, "nonexistant-property");
+ check_error("fdt_property_offset(\"nonexistant-property\")",
+ fdt_offset_error(offset));
+
+ val = fdt_getprop(fdt, 0, "nonexistant-property", NULL);
+ check_error("fdt_getprop(\"nonexistant-property\"",
+ fdt_ptr_error(val));
+
+ subnode1_offset = fdt_subnode_offset(fdt, 0, "subnode1");
+ if ((err = fdt_offset_error(subnode1_offset)))
+ FAIL("Couldn't find subnode1: %s", fdt_strerror(err));
+
+ val = fdt_getprop(fdt, subnode1_offset, "prop-str", NULL);
+ check_error("fdt_getprop(\"prop-str\")", fdt_ptr_error(val));
+
+ offset = fdt_subnode_offset(fdt, 0, "nonexistant-subnode");
+ check_error("fdt_subnode_offset(\"nonexistant-subnode\")",
+ fdt_offset_error(offset));
+
+ offset = fdt_subnode_offset(fdt, 0, "subsubnode");
+ check_error("fdt_subnode_offset(\"subsubnode\")",
+ fdt_offset_error(offset));
+
+ offset = fdt_path_offset(fdt, "/nonexistant-subnode");
+ check_error("fdt_path_offset(\"/nonexistant-subnode\")",
+ fdt_offset_error(offset));
+
+ PASS();
+}
diff --git a/tests/path_offset.c b/tests/path_offset.c
new file mode 100644
index 0000000..fd7b76b
--- /dev/null
+++ b/tests/path_offset.c
@@ -0,0 +1,97 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_path_offset()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int check_subnode(struct fdt_header *fdt, int parent, const char *name)
+{
+ int offset;
+ int err;
+ struct fdt_node_header *nh;
+ uint32_t tag;
+
+ verbose_printf("Checking subnode \"%s\" of %d...", name, parent);
+ offset = fdt_subnode_offset(fdt, parent, name);
+ verbose_printf("offset %d...", offset);
+ if ((err = fdt_offset_error(offset)))
+ FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(err));
+ nh = fdt_offset_ptr_typed(fdt, offset, nh);
+ verbose_printf("pointer %p\n", nh);
+ if (! nh)
+ FAIL("NULL retrieving subnode \"%s\"", name);
+
+ tag = fdt32_to_cpu(nh->tag);
+
+ if (tag != FDT_BEGIN_NODE)
+ FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name);
+ if (!streq(nh->name, name))
+ FAIL("Subnode name mismatch \"%s\" instead of \"%s\"",
+ nh->name, name);
+
+ return offset;
+}
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ int subnode1_offset, subnode2_offset;
+ int subnode1_offset_p, subnode2_offset_p;
+ int subsubnode1_offset, subsubnode2_offset;
+ int subsubnode1_offset_p, subsubnode2_offset_p;
+
+ test_init(argc, argv);
+
+ subnode1_offset = check_subnode(fdt, 0, "subnode1");
+ subnode2_offset = check_subnode(fdt, 0, "subnode2");
+
+ subnode1_offset_p = fdt_path_offset(fdt, "/subnode1");
+ subnode2_offset_p = fdt_path_offset(fdt, "/subnode2");
+
+ if (subnode1_offset != subnode1_offset_p)
+ FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)",
+ subnode1_offset, subnode1_offset_p);
+
+ if (subnode2_offset != subnode2_offset_p)
+ FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)",
+ subnode2_offset, subnode2_offset_p);
+
+ subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode");
+ subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode");
+
+ subsubnode1_offset_p = fdt_path_offset(fdt, "/subnode1/subsubnode");
+ subsubnode2_offset_p = fdt_path_offset(fdt, "/subnode2/subsubnode");
+
+ if (subsubnode1_offset != subsubnode1_offset_p)
+ FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)",
+ subsubnode1_offset, subsubnode1_offset_p);
+
+ if (subsubnode2_offset != subsubnode2_offset_p)
+ FAIL("Mismatch between subnode_offset (%d) and path_offset (%d)",
+ subsubnode2_offset, subsubnode2_offset_p);
+
+ PASS();
+}
diff --git a/tests/property_offset.c b/tests/property_offset.c
new file mode 100644
index 0000000..a106159
--- /dev/null
+++ b/tests/property_offset.c
@@ -0,0 +1,40 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_property_offset()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+
+ test_init(argc, argv);
+
+ check_property_typed(fdt, 0, "prop-int", TEST_VALUE_1);
+ check_property(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1, TEST_STRING_1);
+
+ PASS();
+}
diff --git a/tests/root_node.c b/tests/root_node.c
new file mode 100644
index 0000000..906359b
--- /dev/null
+++ b/tests/root_node.c
@@ -0,0 +1,51 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Basic testcase for read-only access
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ struct fdt_node_header *nh;
+
+ test_init(argc, argv);
+
+ nh = fdt_offset_ptr_typed(fdt, 0, nh);
+
+ if (! nh)
+ FAIL("NULL retrieving root node");
+
+ if (nh->tag != FDT_BEGIN_NODE)
+ FAIL("Wrong tag on root node");
+
+ if (strlen(nh->name) != 0)
+ FAIL("Wrong name for root node, \"%s\" instead of empty",
+ nh->name);
+
+ PASS();
+}
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
new file mode 100755
index 0000000..11cc691
--- /dev/null
+++ b/tests/run_tests.sh
@@ -0,0 +1,55 @@
+#! /bin/bash
+
+export QUIET_TEST=1
+
+ENV=/usr/bin/env
+
+run_test () {
+ echo -n "$@: "
+ PATH=".:$PATH" $ENV "$@"
+}
+
+functional_tests () {
+ # Read-only tests
+ run_test root_node
+ run_test property_offset
+ run_test subnode_offset
+ run_test path_offset
+ run_test getprop
+ run_test notfound
+
+ # Write-in-place tests
+ run_test setprop_inplace
+ run_test nop_property
+ run_test nop_node
+}
+
+stress_tests () {
+ ITERATIONS=10 # Number of iterations for looping tests
+}
+
+while getopts "vdt:" ARG ; do
+ case $ARG in
+ "v")
+ unset QUIET_TEST
+ ;;
+ "t")
+ TESTSETS=$OPTARG
+ ;;
+ esac
+done
+
+if [ -z "$TESTSETS" ]; then
+ TESTSETS="func stress"
+fi
+
+for set in $TESTSETS; do
+ case $set in
+ "func")
+ functional_tests
+ ;;
+ "stress")
+ stress_tests
+ ;;
+ esac
+done
diff --git a/tests/setprop_inplace.c b/tests/setprop_inplace.c
new file mode 100644
index 0000000..ce19bcc
--- /dev/null
+++ b/tests/setprop_inplace.c
@@ -0,0 +1,69 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_setprop_inplace()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ uint32_t *intp;
+ char *strp, *xstr;
+ int xlen, i;
+ int err;
+
+ test_init(argc, argv);
+
+ intp = check_getprop_typed(fdt, 0, "prop-int", TEST_VALUE_1);
+
+ verbose_printf("Old int value was 0x%08x\n", *intp);
+ err = fdt_setprop_inplace_typed(fdt, 0, "prop-int", ~TEST_VALUE_1);
+ if (err)
+ FAIL("Failed to set \"prop-int\" to 0x08%x: %s",
+ ~TEST_VALUE_1, fdt_strerror(err));
+ intp = check_getprop_typed(fdt, 0, "prop-int", ~TEST_VALUE_1);
+ verbose_printf("New int value is 0x%08x\n", *intp);
+
+ strp = check_getprop(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1,
+ TEST_STRING_1);
+
+ verbose_printf("Old string value was \"%s\"\n", strp);
+ xstr = strdup(strp);
+ xlen = strlen(xstr);
+ for (i = 0; i < xlen; i++)
+ xstr[i] = toupper(xstr[i]);
+ err = fdt_setprop_inplace(fdt, 0, "prop-str", xstr, xlen+1);
+ if (err)
+ FAIL("Failed to set \"prop-str\" to \"%s\": %s",
+ xstr, fdt_strerror(err));
+
+ strp = check_getprop(fdt, 0, "prop-str", xlen+1, xstr);
+ verbose_printf("New string value is \"%s\"\n", strp);
+
+ PASS();
+}
diff --git a/tests/subnode_offset.c b/tests/subnode_offset.c
new file mode 100644
index 0000000..d64257a
--- /dev/null
+++ b/tests/subnode_offset.c
@@ -0,0 +1,82 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_subnode_offset()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+int check_subnode(struct fdt_header *fdt, int parent, const char *name)
+{
+ int offset;
+ int err;
+ struct fdt_node_header *nh;
+ uint32_t tag;
+
+ verbose_printf("Checking subnode \"%s\" of %d...", name, parent);
+ offset = fdt_subnode_offset(fdt, parent, name);
+ verbose_printf("offset %d...", offset);
+ if ((err = fdt_offset_error(offset)))
+ FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(err));
+ nh = fdt_offset_ptr_typed(fdt, offset, nh);
+ verbose_printf("pointer %p\n", nh);
+ if (! nh)
+ FAIL("NULL retrieving subnode \"%s\"", name);
+
+ tag = fdt32_to_cpu(nh->tag);
+
+ if (tag != FDT_BEGIN_NODE)
+ FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name);
+ if (!streq(nh->name, name))
+ FAIL("Subnode name mismatch \"%s\" instead of \"%s\"",
+ nh->name, name);
+
+ return offset;
+}
+
+int main(int argc, char *argv[])
+{
+ struct fdt_header *fdt = &_test_tree1;
+ int subnode1_offset, subnode2_offset;
+ int subsubnode1_offset, subsubnode2_offset;
+
+ test_init(argc, argv);
+
+ subnode1_offset = check_subnode(fdt, 0, "subnode1");
+ subnode2_offset = check_subnode(fdt, 0, "subnode2");
+
+ if (subnode1_offset == subnode2_offset)
+ FAIL("Different subnodes have same offset");
+
+ check_property_typed(fdt, subnode1_offset, "prop-int", TEST_VALUE_1);
+ check_property_typed(fdt, subnode2_offset, "prop-int", TEST_VALUE_2);
+
+ subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode");
+ subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode");
+
+ check_property_typed(fdt, subsubnode1_offset, "prop-int", TEST_VALUE_1);
+ check_property_typed(fdt, subsubnode2_offset, "prop-int", TEST_VALUE_2);
+
+ PASS();
+}
diff --git a/tests/testdata.h b/tests/testdata.h
new file mode 100644
index 0000000..318b95f
--- /dev/null
+++ b/tests/testdata.h
@@ -0,0 +1,8 @@
+#define TEST_VALUE_1 0xdeadbeef
+#define TEST_VALUE_2 0xabcd1234
+
+#define TEST_STRING_1 "hello world"
+
+#ifndef __ASSEMBLY__
+extern struct fdt_header _test_tree1;
+#endif /* ! __ASSEMBLY */
diff --git a/tests/tests.h b/tests/tests.h
new file mode 100644
index 0000000..9ad07c8
--- /dev/null
+++ b/tests/tests.h
@@ -0,0 +1,126 @@
+#ifndef _TESTS_H
+#define _TESTS_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase definitions
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define DEBUG
+
+/* Test return codes */
+#define RC_PASS 0
+#define RC_CONFIG 1
+#define RC_FAIL 2
+#define RC_BUG 99
+
+extern int verbose_test;
+extern char *test_name;
+void test_init(int argc, char *argv[]);
+
+#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
+#define PALIGN(p, a) ((void *)ALIGN((unsigned long)(p), (a)))
+
+#define streq(s1, s2) (strcmp((s1),(s2)) == 0)
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define fdt32_to_cpu(x) (x)
+#define cpu_to_fdt32(x) (x)
+#define fdt64_to_cpu(x) (x)
+#define cpu_to_fdt64(x) (x)
+#else
+#define fdt32_to_cpu(x) (bswap_32((x)))
+#define cpu_to_fdt32(x) (bswap_32((x)))
+#define fdt64_to_cpu(x) (bswap_64((x)))
+#define cpu_to_fdt64(x) (bswap_64((x)))
+#endif
+
+/* Each test case must define this function */
+void cleanup(void);
+
+#define verbose_printf(...) \
+ if (verbose_test) { \
+ printf(__VA_ARGS__); \
+ fflush(stdout); \
+ }
+#define ERR "ERR: "
+#define ERROR(fmt, args...) fprintf(stderr, ERR fmt, ## args)
+
+
+#define PASS() \
+ do { \
+ cleanup(); \
+ printf("PASS\n"); \
+ exit(RC_PASS); \
+ } while (0)
+
+#define PASS_INCONCLUSIVE() \
+ do { \
+ cleanup(); \
+ printf("PASS (inconclusive)\n"); \
+ exit(RC_PASS); \
+ } while (0)
+
+#define IRRELEVANT() \
+ do { \
+ cleanup(); \
+ printf("PASS (irrelevant)\n"); \
+ exit(RC_PASS); \
+ } while (0)
+
+/* Look out, gcc extension below... */
+#define FAIL(fmt, ...) \
+ do { \
+ cleanup(); \
+ printf("FAIL\t" fmt "\n", ##__VA_ARGS__); \
+ exit(RC_FAIL); \
+ } while (0)
+
+#define CONFIG(fmt, ...) \
+ do { \
+ cleanup(); \
+ printf("Bad configuration: " fmt "\n", ##__VA_ARGS__); \
+ exit(RC_CONFIG); \
+ } while (0)
+
+#define TEST_BUG(fmt, ...) \
+ do { \
+ cleanup(); \
+ printf("BUG in testsuite: " fmt "\n", ##__VA_ARGS__); \
+ exit(RC_BUG); \
+ } while (0)
+
+const char *fdt_strerror(int errval);
+void check_property(struct fdt_header *fdt, int nodeoffset, const char *name,
+ int len, const void *val);
+#define check_property_typed(fdt, nodeoffset, name, val) \
+ ({ \
+ typeof(val) x = val; \
+ check_property(fdt, nodeoffset, name, sizeof(x), &x); \
+ })
+
+
+void *check_getprop(struct fdt_header *fdt, int nodeoffset, const char *name,
+ int len, const void *val);
+#define check_getprop_typed(fdt, nodeoffset, name, val) \
+ ({ \
+ typeof(val) x = val; \
+ check_getprop(fdt, nodeoffset, name, sizeof(x), &x); \
+ })
+
+
+#endif /* _TESTS_H */
diff --git a/tests/testutils.c b/tests/testutils.c
new file mode 100644
index 0000000..30acb35
--- /dev/null
+++ b/tests/testutils.c
@@ -0,0 +1,163 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase common utility functions
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define _GNU_SOURCE /* for strsignal() */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+
+int verbose_test = 1;
+char *test_name;
+
+void __attribute__((weak)) cleanup(void)
+{
+}
+
+static void sigint_handler(int signum, siginfo_t *si, void *uc)
+{
+ cleanup();
+ fprintf(stderr, "%s: %s (pid=%d)\n", test_name,
+ strsignal(signum), getpid());
+ exit(RC_BUG);
+}
+
+void test_init(int argc, char *argv[])
+{
+ int err;
+ struct sigaction sa_int = {
+ .sa_sigaction = sigint_handler,
+ };
+
+ test_name = argv[0];
+
+ err = sigaction(SIGINT, &sa_int, NULL);
+ if (err)
+ FAIL("Can't install SIGINT handler");
+
+ if (getenv("QUIET_TEST"))
+ verbose_test = 0;
+
+ verbose_printf("Starting testcase \"%s\", pid %d\n",
+ test_name, getpid());
+}
+
+
+struct errtabent {
+ const char *str;
+};
+
+#define ERRTABENT(val) \
+ [(val)] = { .str = #val, }
+
+static struct errtabent errtable[] = {
+ ERRTABENT(FDT_ERR_OK),
+ ERRTABENT(FDT_ERR_BADMAGIC),
+ ERRTABENT(FDT_ERR_BADVERSION),
+ ERRTABENT(FDT_ERR_BADPOINTER),
+ ERRTABENT(FDT_ERR_BADHEADER),
+ ERRTABENT(FDT_ERR_BADSTRUCTURE),
+ ERRTABENT(FDT_ERR_BADOFFSET),
+ ERRTABENT(FDT_ERR_NOTFOUND),
+ ERRTABENT(FDT_ERR_BADPATH),
+ ERRTABENT(FDT_ERR_TRUNCATED),
+ ERRTABENT(FDT_ERR_NOSPACE),
+ ERRTABENT(FDT_ERR_BADSTATE),
+ ERRTABENT(FDT_ERR_SIZE_MISMATCH),
+ ERRTABENT(FDT_ERR_INTERNAL),
+};
+
+#define ERRTABSIZE (sizeof(errtable) / sizeof(errtable[0]))
+
+const char *fdt_strerror(int errval)
+{
+ if ((errval >= 0) && (errval < ERRTABSIZE))
+ return errtable[errval].str;
+ else
+ return "Unknown FDT error code";
+}
+
+void check_property(struct fdt_header *fdt, int nodeoffset, const char *name,
+ int len, const void *val)
+{
+ int offset;
+ const struct fdt_property *prop;
+ uint32_t tag, nameoff, proplen;
+ const char *propname;
+ int err;
+
+ verbose_printf("Checking property \"%s\"...", name);
+ offset = fdt_property_offset(fdt, nodeoffset, name);
+ verbose_printf("offset %d...", offset);
+ if ((err = fdt_offset_error(offset)))
+ FAIL("fdt_property_offset(\"%s\"): %s", name,
+ fdt_strerror(err));
+
+ prop = fdt_offset_ptr_typed(fdt, offset, prop);
+ verbose_printf("pointer %p\n", prop);
+ if (! prop)
+ FAIL("NULL retreiving \"%s\" pointer", name);
+
+ tag = fdt32_to_cpu(prop->tag);
+ nameoff = fdt32_to_cpu(prop->nameoff);
+ proplen = fdt32_to_cpu(prop->len);
+
+ if (tag != FDT_PROP)
+ FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name);
+
+ propname = fdt_string(fdt, nameoff);
+ if (!propname || !streq(propname, name))
+ FAIL("Property name mismatch \"%s\" instead of \"%s\"",
+ propname, name);
+ if (proplen != len)
+ FAIL("Size mismatch on property \"%s\": %d insead of %d",
+ name, proplen, len);
+ if (memcmp(val, prop->data, len) != 0)
+ FAIL("Data mismatch on property \"%s\"", name);
+
+}
+
+void *check_getprop(struct fdt_header *fdt, int nodeoffset, const char *name,
+ int len, const void *val)
+{
+ void *propval;
+ int proplen;
+ int err;
+
+ propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
+ if ((err = fdt_ptr_error(propval)))
+ FAIL("fdt_getprop(\"%s\"): %s", name, fdt_strerror(err));
+
+ if (proplen != len)
+ FAIL("Size mismatch on property \"%s\": %d insead of %d",
+ name, proplen, len);
+ if (memcmp(val, propval, len) != 0)
+ FAIL("Data mismatch on property \"%s\"", name);
+
+ return propval;
+}
diff --git a/tests/trees.S b/tests/trees.S
new file mode 100644
index 0000000..095f781
--- /dev/null
+++ b/tests/trees.S
@@ -0,0 +1,84 @@
+#include <fdt.h>
+#include "testdata.h"
+
+#define TREE_HDR(tree) \
+ .globl _##tree ; \
+_##tree: \
+tree: \
+ .long FDT_MAGIC ; \
+ .long tree##_end - tree ; \
+ .long tree##_struct - tree ; \
+ .long tree##_strings - tree ; \
+ .long tree##_rsvmap - tree ; \
+ .long 0x10 ; \
+ .long 0x10 ; \
+ .long 0 ; \
+ .long tree##_end - tree##_strings ;
+
+#define RSVMAP_ENTRY(addr, len) \
+ .quad addr ; \
+ .quad len ;
+
+#define PROPHDR(tree, name, len) \
+ .long FDT_PROP ; \
+ .long tree##_##name - tree##_strings ; \
+ .long len ;
+
+#define PROP_INT(tree, name, val) \
+ PROPHDR(tree, name, 4) \
+ .long val
+
+#define PROP_STR(tree, name, str) \
+ PROPHDR(tree, name, 55f - 54f) \
+54: \
+ .string str ; \
+55: \
+ .balign 4
+
+#define BEGIN_NODE(name) \
+ .long FDT_BEGIN_NODE ; \
+ .string name ; \
+ .balign 4
+
+#define END_NODE \
+ .long FDT_END_NODE ;
+
+#define STRING(tree, name, str) \
+tree##_##name: \
+ .string str
+
+ .data
+
+ TREE_HDR(test_tree1)
+
+test_tree1_rsvmap:
+ RSVMAP_ENTRY(0, 0)
+
+test_tree1_struct:
+ BEGIN_NODE("")
+ PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
+ PROP_STR(test_tree1, prop_str, TEST_STRING_1)
+
+ BEGIN_NODE("subnode1")
+ PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
+
+ BEGIN_NODE("subsubnode")
+ PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
+ END_NODE
+ END_NODE
+
+ BEGIN_NODE("subnode2")
+ PROP_INT(test_tree1, prop_int, TEST_VALUE_2)
+
+ BEGIN_NODE("subsubnode")
+ PROP_INT(test_tree1, prop_int, TEST_VALUE_2)
+ END_NODE
+ END_NODE
+
+ END_NODE
+ .long FDT_END
+
+test_tree1_strings:
+ STRING(test_tree1, prop_int, "prop-int")
+ STRING(test_tree1, prop_str, "prop-str")
+test_tree1_end: