diff options
Diffstat (limited to 'scripts/dtc/dtc-parser.y')
| -rw-r--r-- | scripts/dtc/dtc-parser.y | 160 |
1 files changed, 63 insertions, 97 deletions
diff --git a/scripts/dtc/dtc-parser.y b/scripts/dtc/dtc-parser.y index b2ab562..5e84a67 100644 --- a/scripts/dtc/dtc-parser.y +++ b/scripts/dtc/dtc-parser.y @@ -18,15 +18,17 @@ * USA */ -%locations - %{ #include <stdio.h> #include "dtc.h" #include "srcpos.h" +YYLTYPE yylloc; + extern int yylex(void); +extern void print_error(char const *fmt, ...); +extern void yyerror(char const *s); extern struct boot_info *the_boot_info; extern int treesource_error; @@ -55,7 +57,6 @@ static unsigned long long eval_literal(const char *s, int base, int bits); %token DT_MEMRESERVE %token <propnodename> DT_PROPNODENAME %token <literal> DT_LITERAL -%token <literal> DT_LEGACYLITERAL %token <cbase> DT_BASE %token <byte> DT_BYTE %token <data> DT_STRING @@ -67,11 +68,8 @@ static unsigned long long eval_literal(const char *s, int base, int bits); %type <data> propdataprefix %type <re> memreserve %type <re> memreserves -%type <re> v0_memreserve -%type <re> v0_memreserves %type <addr> addr %type <data> celllist -%type <cbase> cellbase %type <cell> cellval %type <data> bytestring %type <prop> propdef @@ -81,18 +79,14 @@ static unsigned long long eval_literal(const char *s, int base, int bits); %type <node> nodedef %type <node> subnode %type <nodelist> subnodes -%type <labelref> label %% sourcefile: DT_V1 ';' memreserves devicetree { - the_boot_info = build_boot_info($3, $4, 0); - } - | v0_memreserves devicetree - { - the_boot_info = build_boot_info($1, $2, 0); + the_boot_info = build_boot_info($3, $4, + guess_boot_cpuid($4)); } ; @@ -108,31 +102,14 @@ memreserves: ; memreserve: - label DT_MEMRESERVE addr addr ';' + DT_MEMRESERVE addr addr ';' { - $$ = build_reserve_entry($3, $4, $1); + $$ = build_reserve_entry($2, $3); } - ; - -v0_memreserves: - /* empty */ + | DT_LABEL memreserve { - $$ = NULL; - } - | v0_memreserve v0_memreserves - { - $$ = chain_reserve_entry($1, $2); - }; - ; - -v0_memreserve: - memreserve - { - $$ = $1; - } - | label DT_MEMRESERVE addr '-' addr ';' - { - $$ = build_reserve_entry($3, $5 - $3 + 1, $1); + add_label(&$2->labels, $1); + $$ = $2; } ; @@ -141,16 +118,26 @@ addr: { $$ = eval_literal($1, 0, 64); } - | DT_LEGACYLITERAL - { - $$ = eval_literal($1, 16, 64); - } ; devicetree: '/' nodedef { - $$ = name_node($2, "", NULL); + $$ = name_node($2, ""); + } + | devicetree '/' nodedef + { + $$ = merge_nodes($1, $3); + } + | devicetree DT_REF nodedef + { + struct node *target = get_node_by_ref($1, $2); + + if (target) + merge_nodes(target, $3); + else + print_error("label or path, '%s', not found", $2); + $$ = $1; } ; @@ -173,13 +160,18 @@ proplist: ; propdef: - label DT_PROPNODENAME '=' propdata ';' + DT_PROPNODENAME '=' propdata ';' + { + $$ = build_property($1, $3); + } + | DT_PROPNODENAME ';' { - $$ = build_property($2, $4, $1); + $$ = build_property($1, empty_data); } - | label DT_PROPNODENAME ';' + | DT_LABEL propdef { - $$ = build_property($2, empty_data, $1); + add_label(&$2->labels, $1); + $$ = $2; } ; @@ -202,31 +194,30 @@ propdata: } | propdataprefix DT_INCBIN '(' DT_STRING ',' addr ',' addr ')' { - struct search_path path = { srcpos_file->dir, NULL, NULL }; - struct dtc_file *file = dtc_open_file($4.val, &path); - struct data d = empty_data; + FILE *f = srcfile_relative_open($4.val, NULL); + struct data d; if ($6 != 0) - if (fseek(file->file, $6, SEEK_SET) != 0) - yyerrorf("Couldn't seek to offset %llu in \"%s\": %s", - (unsigned long long)$6, - $4.val, strerror(errno)); + if (fseek(f, $6, SEEK_SET) != 0) + print_error("Couldn't seek to offset %llu in \"%s\": %s", + (unsigned long long)$6, + $4.val, + strerror(errno)); - d = data_copy_file(file->file, $8); + d = data_copy_file(f, $8); $$ = data_merge($1, d); - dtc_close_file(file); + fclose(f); } | propdataprefix DT_INCBIN '(' DT_STRING ')' { - struct search_path path = { srcpos_file->dir, NULL, NULL }; - struct dtc_file *file = dtc_open_file($4.val, &path); + FILE *f = srcfile_relative_open($4.val, NULL); struct data d = empty_data; - d = data_copy_file(file->file, -1); + d = data_copy_file(f, -1); $$ = data_merge($1, d); - dtc_close_file(file); + fclose(f); } | propdata DT_LABEL { @@ -269,23 +260,11 @@ celllist: } ; -cellbase: - /* empty */ - { - $$ = 16; - } - | DT_BASE - ; - cellval: DT_LITERAL { $$ = eval_literal($1, 0, 32); } - | cellbase DT_LEGACYLITERAL - { - $$ = eval_literal($2, $1, 32); - } ; bytestring: @@ -308,57 +287,44 @@ subnodes: { $$ = NULL; } - | subnode subnodes + | subnode subnodes { $$ = chain_node($1, $2); } | subnode propdef { - yyerror("syntax error: properties must precede subnodes"); + print_error("syntax error: properties must precede subnodes"); YYERROR; } ; subnode: - label DT_PROPNODENAME nodedef + DT_PROPNODENAME nodedef { - $$ = name_node($3, $2, $1); + $$ = name_node($2, $1); } - ; - -label: - /* empty */ + | DT_LABEL subnode { - $$ = NULL; - } - | DT_LABEL - { - $$ = $1; + add_label(&$2->labels, $1); + $$ = $2; } ; %% -void yyerrorf(char const *s, ...) +void print_error(char const *fmt, ...) { - const char *fname = srcpos_file ? srcpos_file->name : "<no-file>"; va_list va; - va_start(va, s); - - if (strcmp(fname, "-") == 0) - fname = "stdin"; - fprintf(stderr, "%s:%d ", fname, yylloc.first_line); - vfprintf(stderr, s, va); - fprintf(stderr, "\n"); + va_start(va, fmt); + srcpos_verror(&yylloc, fmt, va); + va_end(va); treesource_error = 1; - va_end(va); } -void yyerror (char const *s) -{ - yyerrorf("%s", s); +void yyerror(char const *s) { + print_error("%s", s); } static unsigned long long eval_literal(const char *s, int base, int bits) @@ -369,11 +335,11 @@ static unsigned long long eval_literal(const char *s, int base, int bits) errno = 0; val = strtoull(s, &e, base); if (*e) - yyerror("bad characters in literal"); + print_error("bad characters in literal"); else if ((errno == ERANGE) || ((bits < 64) && (val >= (1ULL << bits)))) - yyerror("literal out of range"); + print_error("literal out of range"); else if (errno != 0) - yyerror("bad literal"); + print_error("bad literal"); return val; } |
