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author | Anthony Gutierrez <atgutier@umich.edu> | 2013-02-15 18:48:59 -0500 |
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committer | Anthony Gutierrez <atgutier@umich.edu> | 2013-02-15 18:48:59 -0500 |
commit | ba983f9387a703f3be8149382d4f0dcfb2009b6c (patch) | |
tree | 150af91f0ddd6de0b4138e75c317ef3f1cab4ce3 /ext/libfdt/fdt_strerror.c | |
parent | bd31a5dc18def5972967a595d65266d1f9ff05cb (diff) | |
download | gem5-ba983f9387a703f3be8149382d4f0dcfb2009b6c.tar.xz |
ext lib: add libfdt to enable flattened device tree support
this patch adds libfdt, a library necessary for supporting
flattened device tree support in current and future versions of
the linux/android kernel for ARM.
Diffstat (limited to 'ext/libfdt/fdt_strerror.c')
-rw-r--r-- | ext/libfdt/fdt_strerror.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/ext/libfdt/fdt_strerror.c b/ext/libfdt/fdt_strerror.c new file mode 100644 index 000000000..35cb4f424 --- /dev/null +++ b/ext/libfdt/fdt_strerror.c @@ -0,0 +1,75 @@ +/* + * libfdt - Flat Device Tree manipulation + * Copyright (C) 2006 David Gibson, IBM Corporation. + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * 1. Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include <fdt.h> +#include <libfdt.h> + +#include "libfdt_env.h" +#include "libfdt_internal.h" + +struct fdt_errtabent { + const char *str; +}; + +#define FDT_ERRTABENT(val) \ + [(val)] = { .str = #val, } + +static struct fdt_errtabent fdt_errtable[] = { + FDT_ERRTABENT(FDT_ERR_NOTFOUND), + FDT_ERRTABENT(FDT_ERR_EXISTS), + FDT_ERRTABENT(FDT_ERR_NOSPACE), + + FDT_ERRTABENT(FDT_ERR_BADOFFSET), + FDT_ERRTABENT(FDT_ERR_BADPATH), + FDT_ERRTABENT(FDT_ERR_BADSTATE), + + FDT_ERRTABENT(FDT_ERR_TRUNCATED), + FDT_ERRTABENT(FDT_ERR_BADMAGIC), + FDT_ERRTABENT(FDT_ERR_BADVERSION), + FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE), + FDT_ERRTABENT(FDT_ERR_BADLAYOUT), +}; +#define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0])) + +const char *fdt_strerror(int errval) +{ + if (errval > 0) + return "<valid offset/length>"; + else if (errval == 0) + return "<no error>"; + else if (errval > -FDT_ERRTABSIZE) { + const char *s = fdt_errtable[-errval].str; + + if (s) + return s; + } + + return "<unknown error>"; +} |