diff options
Diffstat (limited to 'libfdt')
| -rw-r--r-- | libfdt/Makefile | 8 | ||||
| -rw-r--r-- | libfdt/fdt.c | 2 | ||||
| -rw-r--r-- | libfdt/fdt_ro.c | 60 |
3 files changed, 44 insertions, 26 deletions
diff --git a/libfdt/Makefile b/libfdt/Makefile index ca2ad76..d6e2830 100644 --- a/libfdt/Makefile +++ b/libfdt/Makefile @@ -27,9 +27,13 @@ LIB = $(obj)libfdt.a SOBJS = -COBJS-$(CONFIG_OF_LIBFDT) += fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_sw.o fdt_wip.o +COBJS-libfdt += fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_sw.o fdt_wip.o -COBJS := $(COBJS-y) +COBJS-$(CONFIG_OF_LIBFDT) += $(COBJS-libfdt) +COBJS-$(CONFIG_FIT) += $(COBJS-libfdt) + + +COBJS := $(sort $(COBJS-y)) SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/libfdt/fdt.c b/libfdt/fdt.c index 732103b..a59a518 100644 --- a/libfdt/fdt.c +++ b/libfdt/fdt.c @@ -78,7 +78,7 @@ int fdt_check_header(const void *fdt) return 0; } -const void *fdt_offset_ptr(const void *fdt, int offset, int len) +const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len) { const char *p; diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c index b09a6e9..fdc9c29 100644 --- a/libfdt/fdt_ro.c +++ b/libfdt/fdt_ro.c @@ -112,12 +112,12 @@ int fdt_num_mem_rsv(const void *fdt) int fdt_subnode_offset_namelen(const void *fdt, int offset, const char *name, int namelen) { - int depth; + int depth = 0; FDT_CHECK_HEADER(fdt); - for (depth = 0; - offset >= 0; + for (depth = 0, offset = fdt_next_node(fdt, offset, &depth); + (offset >= 0) && (depth > 0); offset = fdt_next_node(fdt, offset, &depth)) { if (depth < 0) return -FDT_ERR_NOTFOUND; @@ -126,7 +126,10 @@ int fdt_subnode_offset_namelen(const void *fdt, int offset, return offset; } - return offset; /* error */ + if (offset < 0) + return offset; /* error */ + else + return -FDT_ERR_NOTFOUND; } int fdt_subnode_offset(const void *fdt, int parentoffset, @@ -145,17 +148,12 @@ int fdt_path_offset(const void *fdt, const char *path) /* see if we have an alias */ if (*path != '/') { - const char *q; - int aliasoffset = fdt_path_offset(fdt, "/aliases"); + const char *q = strchr(path, '/'); - if (aliasoffset < 0) - return -FDT_ERR_BADPATH; - - q = strchr(path, '/'); if (!q) q = end; - p = fdt_getprop_namelen(fdt, aliasoffset, path, q - p, NULL); + p = fdt_get_alias_namelen(fdt, p, q - p); if (!p) return -FDT_ERR_BADPATH; offset = fdt_path_offset(fdt, p); @@ -306,6 +304,23 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset) return fdt32_to_cpu(*php); } +const char *fdt_get_alias_namelen(const void *fdt, + const char *name, int namelen) +{ + int aliasoffset; + + aliasoffset = fdt_path_offset(fdt, "/aliases"); + if (aliasoffset < 0) + return NULL; + + return fdt_getprop_namelen(fdt, aliasoffset, name, namelen, NULL); +} + +const char *fdt_get_alias(const void *fdt, const char *name) +{ + return fdt_get_alias_namelen(fdt, name, strlen(name)); +} + int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen) { int pdepth = 0, p = 0; @@ -320,9 +335,6 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen) for (offset = 0, depth = 0; (offset >= 0) && (offset <= nodeoffset); offset = fdt_next_node(fdt, offset, &depth)) { - if (pdepth < depth) - continue; /* overflowed buffer */ - while (pdepth > depth) { do { p--; @@ -330,14 +342,16 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen) pdepth--; } - name = fdt_get_name(fdt, offset, &namelen); - if (!name) - return namelen; - if ((p + namelen + 1) <= buflen) { - memcpy(buf + p, name, namelen); - p += namelen; - buf[p++] = '/'; - pdepth++; + if (pdepth >= depth) { + name = fdt_get_name(fdt, offset, &namelen); + if (!name) + return namelen; + if ((p + namelen + 1) <= buflen) { + memcpy(buf + p, name, namelen); + p += namelen; + buf[p++] = '/'; + pdepth++; + } } if (offset == nodeoffset) { @@ -347,7 +361,7 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen) if (p > 1) /* special case so that root path is "/", not "" */ p--; buf[p] = '\0'; - return p; + return 0; } } |