coreboot-kgpe-d16/util/cbfstool/fmd.h

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/* parser frontend and utility functions for flashmap descriptor language */
util/: Replace GPLv2 boiler plate with SPDX header Used commands: perl -i -p0e 's|\/\*[\s*]*.*is free software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and\/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-2.0-only */|' $(cat filelist) perl -i -p0e 's|This[\s*]*program[\s*]*is[\s*]*free[\s*]*software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*either[\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License,[\s*]*or[\s*]*.at[\s*]*your[\s*]*option.*[\s*]*any[\s*]*later[\s*]*version.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-2.0-or-later */|' $(cat filelist) perl -i -p0e 's|\/\*[\s*]*.*This[\s*#]*program[\s*#]*is[\s*#]*free[\s*#]*software[;:,][\s*#]*you[\s*#]*can[\s*#]*redistribute[\s*#]*it[\s*#]*and/or[\s*#]*modify[\s*#]*it[\s*#]*under[\s*#]*the[\s*#]*terms[\s*#]*of[\s*#]*the[\s*#]*GNU[\s*#]*General[\s*#]*Public[\s*#]*License[\s*#]*as[\s*#]*published[\s*#]*by[\s*#]*the[\s*#]*Free[\s*#]*Software[\s*#]*Foundation[;:,][\s*#]*either[\s*#]*version[\s*#]*3[\s*#]*of[\s*#]*the[\s*#]*License[;:,][\s*#]*or[\s*#]*.at[\s*#]*your[\s*#]*option.*[\s*#]*any[\s*#]*later[\s*#]*version.[\s*#]*This[\s*#]*program[\s*#]*is[\s*#]*distributed[\s*#]*in[\s*#]*the[\s*#]*hope[\s*#]*that[\s*#]*it[\s*#]*will[\s*#]*be[\s*#]*useful[;:,][\s*#]*but[\s*#]*WITHOUT[\s*#]*ANY[\s*#]*WARRANTY[;:,][\s*#]*without[\s*#]*even[\s*#]*the[\s*#]*implied[\s*#]*warranty[\s*#]*of[\s*#]*MERCHANTABILITY[\s*#]*or[\s*#]*FITNESS[\s*#]*FOR[\s*#]*A[\s*#]*PARTICULAR[\s*#]*PURPOSE.[\s*#]*See[\s*#]*the[\s*#]*GNU[\s*#]*General[\s*#]*Public[\s*#]*License[\s*#]*for[\s*#]*more[\s*#]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-3.0-or-later */|' $(cat filelist) perl -i -p0e 's|(\#\#*)[\w]*.*is free software[:;][\#\s]*you[\#\s]*can[\#\s]*redistribute[\#\s]*it[\#\s]*and\/or[\#\s]*modify[\#\s]*it[\s\#]*under[\s \#]*the[\s\#]*terms[\s\#]*of[\s\#]*the[\s\#]*GNU[\s\#]*General[\s\#]*Public[\s\#]*License[\s\#]*as[\s\#]*published[\s\#]*by[\s\#]*the[\s\#]*Free[\s\#]*Software[\s\#]*Foundation[;,][\s\#]*version[\s\#]*2[\s\#]*of[\s\#]*the[\s\#]*License.*[\s\#]*This[\s\#]*program[\s\#]*is[\s\#]*distributed[\s\#]*in[\s\#]*the[\s\#]*hope[\s\#]*that[\s\#]*it[\s\#]*will[\#\s]*be[\#\s]*useful,[\#\s]*but[\#\s]*WITHOUT[\#\s]*ANY[\#\s]*WARRANTY;[\#\s]*without[\#\s]*even[\#\s]*the[\#\s]*implied[\#\s]*warranty[\#\s]*of[\#\s]*MERCHANTABILITY[\#\s]*or[\#\s]*FITNESS[\#\s]*FOR[\#\s]*A[\#\s]*PARTICULAR[\#\s]*PURPOSE.[\#\s]*See[\#\s]*the[\#\s]*GNU[\#\s]*General[\#\s]*Public[\#\s]*License[\#\s]*for[\#\s]*more[\#\s]*details.\s(#* *\n)*|\1 SPDX-License-Identifier: GPL-2.0-only\n\n|' $(cat filelist) perl -i -p0e 's|(\#\#*)[\w*]*.*is free software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and\/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.\s(#* *\n)*|\1 SPDX-License-Identifier: GPL-2.0-only\n\n|' $(cat filelist) Change-Id: I1008a63b804f355a916221ac994701d7584f60ff Signed-off-by: Patrick Georgi <pgeorgi@google.com> Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41177 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-08 20:48:04 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef FMD_H_
#define FMD_H_
#include <limits.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#define FMD_NOTFOUND UINT_MAX
/**
* Flags used by flashmap_descriptor.
* These flags can be set by adding (NAME) after description name.
* For example, declaring a CBFS section named as COREBOOT for 16k:
* COREBOOT(CBFS) 16k
*/
union flashmap_flags {
struct {
int cbfs: 1; /* The section contains a CBFS area. */
int preserve: 1; /* Preserve the section before update. */
} f;
int v;
};
struct flashmap_descriptor {
char *name;
bool offset_known;
/**
* Offset relative to that of the parent node.
* Exception: for the root node in the descriptor tree, it is optional.
* In this case, if absent, it indicates that the flash chip will not be
* memory mapped at runtime; otherwise, its value indicates the base
* address of the flash chip in the virtual address space rather than
* representing an offset into the flash image itself.
* It is an error to read this field unless offset_known is set.
*/
unsigned offset;
bool size_known;
/** It is an error to read this field unless size_known is set. */
unsigned size;
size_t list_len;
union flashmap_flags flags;
/** It is an error to dereference this array if list_len is 0. */
struct flashmap_descriptor **list;
};
/**
* **Client-defined** callback for flag "CBFS".
* This call is used to notify client code that the user has requested the given
* section node to be flagged with "CBFS". Implementations of this function
* should use their return type to tell the compiler whether the flag can be
* applied and can perform whatever actions are necessary.
* It's worth reiterating that this is only called on section nodes, and will
* never be called with the final, complete flashmap_descriptor because
* it is impossible to set flags for the image as a whole.
*
* @param flashmap_descriptor The section node with flag set
* @return Whether this flag can be applied
*/
bool fmd_process_flag_cbfs(const struct flashmap_descriptor *node);
/**
* Parse and validate a flashmap descriptor from the specified stream.
* As part of this process, any fields that were omitted in the input are
* inferred from whatever information is known, if possible. The result is a
* tree with all its offset and size fields filled, except possibly the former
* part of the root node in the case of non--memory mapped flash. If a syntax
* error causes the parser to fail, or if there is not enough information given
* in the input file to determine any single missing value, the specific error
* is reported to standard error and this function returns NULL.
*
* @param stream File from which to read the (partial) flashmap descriptor
* @return Populated flashmap descriptor tree, or NULL on failure
*/
struct flashmap_descriptor *fmd_create(FILE *stream);
/** @param victim Valid descriptor tree to be cleaned up, or NULL for no-op */
void fmd_cleanup(struct flashmap_descriptor *victim);
/**
* @param tree Must be non-NULL
* @return The number of nodes in the tree, including the root
*/
size_t fmd_count_nodes(const struct flashmap_descriptor *tree);
/**
* @param root The flashmap descriptor to search
* @param name The name of the sought-after section
* @return The desired section node, or NULL if none was found
*/
const struct flashmap_descriptor *fmd_find_node(
const struct flashmap_descriptor *root, const char *name);
/**
* @param root Parent node to whose start the "absolute" offset will be relative
* @param name The name of the node whose offset to determine
* @return The "absolute" offset, or FMD_NOTFOUND if the node wasn't found
*/
unsigned fmd_calc_absolute_offset(const struct flashmap_descriptor *root,
const char *name);
/** @param tree Must be non-NULL */
void fmd_print(const struct flashmap_descriptor *tree);
typedef struct flashmap_descriptor **flashmap_descriptor_iterator_t;
/*
* Run the subsequent statement once on each descendant of the specified node.
*
* @param iterator A flashmap_descriptor_iterator_t (automatically declared)
* @param parent The parent node of those over which the loop should iterate
*/
#define fmd_foreach_child_iterator(iterator, parent) \
for (flashmap_descriptor_iterator_t iterator = parent->list; \
iterator < parent->list + parent->list_len; ++iterator)
/*
* Run the subsequent statement once on each descendant of the specified node.
*
* @param child A struct flashmap_descriptor * (automatically declared)
* @param parent The parent node of those over which the loop should iterate
*/
#define fmd_foreach_child(child, parent) \
for (struct flashmap_descriptor **fmd_foreach_child_iterator_ = \
parent->list, *child = NULL; \
fmd_foreach_child_iterator_ < \
parent->list + parent->list_len && \
(child = *fmd_foreach_child_iterator_); \
++fmd_foreach_child_iterator_)
#endif