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cbfstool: Change FMD annotation to flags

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The idea of "annotation" for firmware sections was pretty flexible, but
in future we will want multiple attributes applied to same area. For
example, indicate the section must be preserved when updating firmware
so serial number or MAC address can be preserved.

The solution here is to extend annotation so it can take multiple
identifiers (flags) in a row. For example, to declare a 64KB COREBOOT
section as CBFS using annotation:

 COREBOOT(CBFS)@0x0 64k

If there's a new flag "PRESERVE" indicating the section must be
preserved before update, we can declare it following CBFS flag:

 COREBOOT(CBFS PRESERVE)@0x0 64k

The flags are directly parsed in fmd_parser, and stored in an union
flashmap_flags. Output modules can choose to ignore or process the
flags.

Currently the only supported flag is "CBFS" (for backward compatible
with annotation). There will be more new flags in follow up patches.

BUG=chromium:936768
TEST=make; boots on x86 "google/eve" and arm "google/kukui" devices

Change-Id: Ie2d99f570e6faff6ed3a4344d6af7526a4515fae
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31706
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Hung-Te Lin
2019-03-04 14:28:37 +08:00
committed by Patrick Georgi
parent 7362768c50
commit 9497fcb742
9 changed files with 365 additions and 321 deletions
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39
util/cbfstool/fmd_scanner.h_shipped
View File

@@ -11,7 +11,7 @@
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 6
#define YY_FLEX_SUBMINOR_VERSION 0
#define YY_FLEX_SUBMINOR_VERSION 1
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
@@ -90,25 +90,13 @@ typedef unsigned int flex_uint32_t;
#endif /* ! FLEXINT_H */
#ifdef __cplusplus
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else /* ! __cplusplus */
/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)
#define YY_USE_CONST
#endif /* defined (__STDC__) */
#endif /* ! __cplusplus */
#ifdef YY_USE_CONST
/* TODO: this is always defined, so inline it */
#define yyconst const
#if defined(__GNUC__) && __GNUC__ >= 3
#define yynoreturn __attribute__((__noreturn__))
#else
#define yyconst
#define yynoreturn
#endif
/* Size of default input buffer. */
@@ -134,7 +122,7 @@ typedef struct yy_buffer_state *YY_BUFFER_STATE;
typedef size_t yy_size_t;
#endif
extern yy_size_t yyleng;
extern int yyleng;
extern FILE *yyin, *yyout;
@@ -150,7 +138,7 @@ struct yy_buffer_state
/* Size of input buffer in bytes, not including room for EOB
* characters.
*/
yy_size_t yy_buf_size;
int yy_buf_size;
/* Number of characters read into yy_ch_buf, not including EOB
* characters.
@@ -178,7 +166,7 @@ struct yy_buffer_state
int yy_bs_lineno; /**< The line count. */
int yy_bs_column; /**< The column count. */
/* Whether to try to fill the input buffer when we reach the
* end of it.
*/
@@ -199,7 +187,7 @@ void yypop_buffer_state (void );
YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size );
YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str );
YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len );
YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len );
void *yyalloc (yy_size_t );
void *yyrealloc (void *,yy_size_t );
@@ -220,6 +208,7 @@ extern char *yytext;
#ifdef YY_HEADER_EXPORT_START_CONDITIONS
#define INITIAL 0
#define FLAGS 1
#endif
@@ -256,7 +245,7 @@ FILE *yyget_out (void );
void yyset_out (FILE * _out_str );
yy_size_t yyget_leng (void );
int yyget_leng (void );
char *yyget_text (void );
@@ -328,9 +317,9 @@ extern int yylex (void);
#undef YY_DECL
#endif
#line 41 "fmd_scanner.l"
#line 44 "fmd_scanner.l"
#line 335 "fmd_scanner.h_shipped"
#line 324 "fmd_scanner.h_shipped"
#undef yyIN_HEADER
#endif /* yyHEADER_H */