From d920f7c6628c63a390009c237fb80a203c2e400a Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Tue, 3 Jan 2017 14:40:44 +0100 Subject: genksyms: Fix segfault with invalid declarations Do not try to recover too early and segfault when parsing invalid declarations such as echo 'int (int);' | scripts/genksyms/genksyms echo 'int a, (int);' | scripts/genksyms/genksyms echo 'extern void *__inline_memcpy((void *), (const void *), (__kernel_size_t));' | scripts/genksyms/genksyms The last one was a real-life bug with include/asm-generic/asm-prototypes.h on x86_64. Reported-and-tested-by: Borislav Petkov Signed-off-by: Michal Marek --- scripts/genksyms/parse.y | 2 -- 1 file changed, 2 deletions(-) (limited to 'scripts') diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y index 4fba255e54ae..00a6d7e54971 100644 --- a/scripts/genksyms/parse.y +++ b/scripts/genksyms/parse.y @@ -322,8 +322,6 @@ direct_declarator: { $$ = $2; } | '(' declarator ')' { $$ = $3; } - | '(' error ')' - { $$ = $3; } ; /* Nested declarators differ from regular declarators in that they do -- cgit v1.2.3-59-g8ed1b From fde42bfcd232fb1a46d844dbf486cb67cb910004 Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Tue, 3 Jan 2017 14:55:24 +0100 Subject: genksyms: Regenerate parser Regenerate the parser after d920f7c6628c ("genksyms: Fix segfault with invalid declarations"). Reported-and-tested-by: Borislav Petkov Signed-off-by: Michal Marek --- scripts/genksyms/parse.tab.c_shipped | 474 +++++++++++++++++------------------ 1 file changed, 234 insertions(+), 240 deletions(-) (limited to 'scripts') diff --git a/scripts/genksyms/parse.tab.c_shipped b/scripts/genksyms/parse.tab.c_shipped index 69148d30ca3f..d02258bafe7b 100644 --- a/scripts/genksyms/parse.tab.c_shipped +++ b/scripts/genksyms/parse.tab.c_shipped @@ -440,16 +440,16 @@ union yyalloc /* YYFINAL -- State number of the termination state. */ #define YYFINAL 4 /* YYLAST -- Last index in YYTABLE. */ -#define YYLAST 524 +#define YYLAST 522 /* YYNTOKENS -- Number of terminals. */ #define YYNTOKENS 55 /* YYNNTS -- Number of nonterminals. */ #define YYNNTS 49 /* YYNRULES -- Number of rules. */ -#define YYNRULES 134 +#define YYNRULES 133 /* YYNRULES -- Number of states. */ -#define YYNSTATES 189 +#define YYNSTATES 187 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK 2 @@ -506,13 +506,13 @@ static const yytype_uint16 yyprhs[] = 97, 101, 105, 109, 112, 115, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 145, 146, 148, 150, 153, 155, 157, 159, 161, 164, 166, - 168, 170, 175, 180, 183, 187, 191, 194, 196, 198, - 200, 205, 210, 213, 217, 221, 224, 226, 230, 231, - 233, 235, 239, 242, 245, 247, 248, 250, 252, 257, - 262, 265, 269, 273, 277, 278, 280, 283, 287, 291, - 292, 294, 296, 299, 303, 306, 307, 309, 311, 315, - 318, 321, 323, 326, 327, 330, 334, 339, 341, 345, - 347, 351, 354, 355, 357 + 168, 170, 175, 180, 183, 187, 190, 192, 194, 196, + 201, 206, 209, 213, 217, 220, 222, 226, 227, 229, + 231, 235, 238, 241, 243, 244, 246, 248, 253, 258, + 261, 265, 269, 273, 274, 276, 279, 283, 287, 288, + 290, 292, 295, 299, 302, 303, 305, 307, 311, 314, + 317, 319, 322, 323, 326, 330, 335, 337, 341, 343, + 347, 350, 351, 353 }; /* YYRHS -- A `-1'-separated list of the rules' RHS. */ @@ -536,25 +536,24 @@ static const yytype_int8 yyrhs[] = 74, 75, -1, 8, -1, 27, -1, 32, -1, 18, -1, 72, 76, -1, 77, -1, 39, -1, 43, -1, 77, 49, 80, 50, -1, 77, 49, 1, 50, -1, - 77, 35, -1, 49, 76, 50, -1, 49, 1, 50, - -1, 72, 78, -1, 79, -1, 39, -1, 43, -1, - 79, 49, 80, 50, -1, 79, 49, 1, 50, -1, - 79, 35, -1, 49, 78, 50, -1, 49, 1, 50, - -1, 81, 38, -1, 81, -1, 82, 48, 38, -1, - -1, 82, -1, 83, -1, 82, 48, 83, -1, 67, - 84, -1, 72, 84, -1, 85, -1, -1, 39, -1, - 43, -1, 85, 49, 80, 50, -1, 85, 49, 1, - 50, -1, 85, 35, -1, 49, 84, 50, -1, 49, - 1, 50, -1, 66, 76, 34, -1, -1, 88, -1, - 52, 36, -1, 53, 90, 47, -1, 53, 1, 47, - -1, -1, 91, -1, 92, -1, 91, 92, -1, 66, - 93, 46, -1, 1, 46, -1, -1, 94, -1, 95, - -1, 94, 48, 95, -1, 78, 97, -1, 39, 96, - -1, 96, -1, 54, 36, -1, -1, 97, 32, -1, - 53, 99, 47, -1, 53, 99, 48, 47, -1, 100, - -1, 99, 48, 100, -1, 39, -1, 39, 52, 36, - -1, 31, 46, -1, -1, 31, -1, 30, 49, 39, - 50, 46, -1 + 77, 35, -1, 49, 76, 50, -1, 72, 78, -1, + 79, -1, 39, -1, 43, -1, 79, 49, 80, 50, + -1, 79, 49, 1, 50, -1, 79, 35, -1, 49, + 78, 50, -1, 49, 1, 50, -1, 81, 38, -1, + 81, -1, 82, 48, 38, -1, -1, 82, -1, 83, + -1, 82, 48, 83, -1, 67, 84, -1, 72, 84, + -1, 85, -1, -1, 39, -1, 43, -1, 85, 49, + 80, 50, -1, 85, 49, 1, 50, -1, 85, 35, + -1, 49, 84, 50, -1, 49, 1, 50, -1, 66, + 76, 34, -1, -1, 88, -1, 52, 36, -1, 53, + 90, 47, -1, 53, 1, 47, -1, -1, 91, -1, + 92, -1, 91, 92, -1, 66, 93, 46, -1, 1, + 46, -1, -1, 94, -1, 95, -1, 94, 48, 95, + -1, 78, 97, -1, 39, 96, -1, 96, -1, 54, + 36, -1, -1, 97, 32, -1, 53, 99, 47, -1, + 53, 99, 48, 47, -1, 100, -1, 99, 48, 100, + -1, 39, -1, 39, 52, 36, -1, 31, 46, -1, + -1, 31, -1, 30, 49, 39, 50, 46, -1 }; /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ @@ -567,13 +566,13 @@ static const yytype_uint16 yyrline[] = 238, 240, 242, 247, 250, 251, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 270, 275, 276, 280, 281, 285, 285, 285, 286, 294, 295, 299, - 308, 317, 319, 321, 323, 325, 332, 333, 337, 338, - 339, 341, 343, 345, 347, 352, 353, 354, 358, 359, - 363, 364, 369, 374, 376, 380, 381, 389, 393, 395, - 397, 399, 401, 406, 415, 416, 421, 426, 427, 431, - 432, 436, 437, 441, 443, 448, 449, 453, 454, 458, - 459, 460, 464, 468, 469, 473, 474, 478, 479, 482, - 487, 495, 499, 500, 504 + 308, 317, 319, 321, 323, 330, 331, 335, 336, 337, + 339, 341, 343, 345, 350, 351, 352, 356, 357, 361, + 362, 367, 372, 374, 378, 379, 387, 391, 393, 395, + 397, 399, 404, 413, 414, 419, 424, 425, 429, 430, + 434, 435, 439, 441, 446, 447, 451, 452, 456, 457, + 458, 462, 466, 467, 471, 472, 476, 477, 480, 485, + 493, 497, 498, 502 }; #endif @@ -636,13 +635,13 @@ static const yytype_uint8 yyr1[] = 70, 70, 70, 70, 70, 70, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 72, 73, 73, 74, 74, 75, 75, 75, 75, 76, 76, 77, - 77, 77, 77, 77, 77, 77, 78, 78, 79, 79, - 79, 79, 79, 79, 79, 80, 80, 80, 81, 81, - 82, 82, 83, 84, 84, 85, 85, 85, 85, 85, - 85, 85, 85, 86, 87, 87, 88, 89, 89, 90, - 90, 91, 91, 92, 92, 93, 93, 94, 94, 95, - 95, 95, 96, 97, 97, 98, 98, 99, 99, 100, - 100, 101, 102, 102, 103 + 77, 77, 77, 77, 77, 78, 78, 79, 79, 79, + 79, 79, 79, 79, 80, 80, 80, 81, 81, 82, + 82, 83, 84, 84, 85, 85, 85, 85, 85, 85, + 85, 85, 86, 87, 87, 88, 89, 89, 90, 90, + 91, 91, 92, 92, 93, 93, 94, 94, 95, 95, + 95, 96, 97, 97, 98, 98, 99, 99, 100, 100, + 101, 102, 102, 103 }; /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ @@ -655,13 +654,13 @@ static const yytype_uint8 yyr2[] = 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, - 1, 4, 4, 2, 3, 3, 2, 1, 1, 1, - 4, 4, 2, 3, 3, 2, 1, 3, 0, 1, - 1, 3, 2, 2, 1, 0, 1, 1, 4, 4, - 2, 3, 3, 3, 0, 1, 2, 3, 3, 0, - 1, 1, 2, 3, 2, 0, 1, 1, 3, 2, - 2, 1, 2, 0, 2, 3, 4, 1, 3, 1, - 3, 2, 0, 1, 5 + 1, 4, 4, 2, 3, 2, 1, 1, 1, 4, + 4, 2, 3, 3, 2, 1, 3, 0, 1, 1, + 3, 2, 2, 1, 0, 1, 1, 4, 4, 2, + 3, 3, 3, 0, 1, 2, 3, 3, 0, 1, + 1, 2, 3, 2, 0, 1, 1, 3, 2, 2, + 1, 2, 0, 2, 3, 4, 1, 3, 1, 3, + 2, 0, 1, 5 }; /* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM. @@ -675,189 +674,189 @@ static const yytype_uint8 yydefact[] = 0, 56, 0, 0, 65, 36, 57, 5, 10, 17, 23, 24, 26, 27, 33, 34, 11, 12, 13, 14, 15, 39, 0, 43, 6, 37, 0, 44, 22, 38, - 45, 0, 0, 131, 69, 70, 0, 59, 0, 18, - 19, 0, 132, 68, 25, 42, 129, 0, 127, 22, - 40, 0, 115, 0, 0, 111, 9, 17, 41, 95, - 0, 0, 0, 0, 58, 60, 61, 16, 0, 67, - 133, 103, 123, 73, 0, 0, 125, 0, 7, 114, - 108, 78, 79, 0, 0, 0, 123, 77, 0, 116, - 117, 121, 107, 0, 112, 132, 96, 57, 0, 95, - 92, 94, 35, 0, 75, 74, 62, 20, 104, 0, - 0, 86, 89, 90, 130, 126, 128, 120, 0, 78, - 0, 122, 76, 119, 82, 0, 113, 0, 0, 97, - 0, 93, 100, 0, 134, 124, 0, 21, 105, 72, - 71, 85, 0, 84, 83, 0, 0, 118, 102, 101, - 0, 0, 106, 87, 91, 81, 80, 99, 98 + 45, 0, 0, 130, 69, 70, 0, 59, 0, 18, + 19, 0, 131, 68, 25, 42, 128, 0, 126, 22, + 40, 0, 114, 0, 0, 110, 9, 17, 41, 94, + 0, 0, 0, 58, 60, 61, 16, 0, 67, 132, + 102, 122, 73, 0, 0, 124, 0, 7, 113, 107, + 77, 78, 0, 0, 0, 122, 76, 0, 115, 116, + 120, 106, 0, 111, 131, 95, 57, 0, 94, 91, + 93, 35, 0, 74, 62, 20, 103, 0, 0, 85, + 88, 89, 129, 125, 127, 119, 0, 77, 0, 121, + 75, 118, 81, 0, 112, 0, 0, 96, 0, 92, + 99, 0, 133, 123, 0, 21, 104, 72, 71, 84, + 0, 83, 82, 0, 0, 117, 101, 100, 0, 0, + 105, 86, 90, 80, 79, 98, 97 }; /* YYDEFGOTO[NTERM-NUM]. */ static const yytype_int16 yydefgoto[] = { -1, 1, 2, 3, 37, 79, 58, 38, 68, 69, - 70, 82, 40, 41, 42, 43, 44, 71, 94, 95, - 45, 125, 73, 116, 117, 140, 141, 142, 143, 130, - 131, 46, 167, 168, 57, 83, 84, 85, 118, 119, - 120, 121, 138, 53, 77, 78, 47, 102, 48 + 70, 82, 40, 41, 42, 43, 44, 71, 93, 94, + 45, 124, 73, 115, 116, 138, 139, 140, 141, 129, + 130, 46, 165, 166, 57, 83, 84, 85, 117, 118, + 119, 120, 136, 53, 77, 78, 47, 101, 48 }; /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing STATE-NUM. */ -#define YYPACT_NINF -111 +#define YYPACT_NINF -94 static const yytype_int16 yypact[] = { - -111, 13, -111, 210, -111, -111, 28, -111, -111, -111, - -111, -111, -27, -111, 44, -111, -111, -111, -111, -111, - -111, -111, -111, -111, -24, -111, -20, -111, -111, -111, - 31, -111, 32, 42, -111, -111, -111, -111, -111, 34, - 481, -111, -111, -111, -111, -111, -111, -111, -111, -111, - -111, 51, 56, -111, -111, 52, 108, -111, 481, 52, - -111, 481, 58, -111, -111, -111, 19, 0, 54, 55, - -111, 34, 30, -18, -111, -111, 68, -25, -111, 481, - -111, 45, 33, 59, 159, -111, -111, 34, -111, 395, - 57, 60, 81, 88, -111, 0, -111, -111, 34, -111, - -111, -111, -111, -111, 257, 72, -111, -23, -111, -111, - -111, 85, -111, 20, 106, 47, -111, -10, 97, 96, - -111, -111, -111, 99, -111, 115, -111, -111, 5, 50, - -111, 11, -111, 102, -111, -111, -111, -111, -22, 100, - 103, 111, 104, -111, -111, -111, -111, -111, 113, -111, - 121, -111, -111, 124, -111, 303, -111, 33, 132, -111, - 139, -111, -111, 349, -111, -111, 122, -111, -111, -111, - -111, -111, 442, -111, -111, 140, 143, -111, -111, -111, - 144, 145, -111, -111, -111, -111, -111, -111, -111 + -94, 15, -94, 208, -94, -94, 34, -94, -94, -94, + -94, -94, -27, -94, -5, -94, -94, -94, -94, -94, + -94, -94, -94, -94, -25, -94, -16, -94, -94, -94, + -4, -94, 19, -24, -94, -94, -94, -94, -94, 24, + 479, -94, -94, -94, -94, -94, -94, -94, -94, -94, + -94, 29, 48, -94, -94, 37, 106, -94, 479, 37, + -94, 479, 54, -94, -94, -94, 24, -2, 49, 53, + -94, 24, -14, -11, -94, -94, 47, 38, -94, 479, + -94, 51, 23, 55, 157, -94, -94, 24, -94, 393, + 56, 58, 68, -94, -2, -94, -94, 24, -94, -94, + -94, -94, -94, 255, 67, -94, 5, -94, -94, -94, + 50, -94, 7, 69, 40, -94, -8, 83, 88, -94, + -94, -94, 91, -94, 109, -94, -94, 4, 45, -94, + 16, -94, 95, -94, -94, -94, -23, 92, 93, 108, + 96, -94, -94, -94, -94, -94, 97, -94, 98, -94, + -94, 118, -94, 301, -94, 23, 101, -94, 104, -94, + -94, 347, -94, -94, 120, -94, -94, -94, -94, -94, + 440, -94, -94, 111, 119, -94, -94, -94, 130, 137, + -94, -94, -94, -94, -94, -94, -94 }; /* YYPGOTO[NTERM-NUM]. */ static const yytype_int16 yypgoto[] = { - -111, -111, 160, -111, -111, -111, -111, -51, -111, -111, - 98, -1, -61, -37, -111, -111, -111, -78, -111, -111, - -53, -30, -111, -66, -111, -110, -111, -111, -60, -63, - -111, -111, -111, -111, -21, -111, -111, 116, -111, -111, - 40, 90, 83, 152, -111, 105, -111, -111, -111 + -94, -94, 158, -94, -94, -94, -94, -45, -94, -94, + 94, -1, -61, -29, -94, -94, -94, -79, -94, -94, + -63, -7, -94, -93, -94, -92, -94, -94, -60, -57, + -94, -94, -94, -94, -19, -94, -94, 110, -94, -94, + 33, 82, 78, 144, -94, 99, -94, -94, -94 }; /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If positive, shift that token. If negative, reduce the rule which number is the opposite. If YYTABLE_NINF, syntax error. */ -#define YYTABLE_NINF -111 +#define YYTABLE_NINF -110 static const yytype_int16 yytable[] = { - 89, 90, 39, 74, 115, 60, 158, 86, 10, 72, - 165, 129, 51, 4, 96, 55, 76, 103, 20, 59, - 92, 148, 106, 107, 145, 154, 52, 29, 108, 56, - 166, 104, 34, 56, 80, 115, 93, 115, 88, 155, - -95, 99, 136, 89, 126, 176, 162, 150, 159, 152, - 129, 129, 74, 181, 128, -95, 67, 87, 64, 149, - 163, 100, 65, 112, 101, 160, 161, 54, 66, 113, - 67, 67, 111, 64, 49, 50, 112, 65, 87, 115, - 61, 62, 113, 66, 67, 67, 149, 114, 63, 126, - 112, 109, 110, 159, 89, 76, 113, 91, 67, 128, - 97, 67, 89, 98, 52, 56, 122, 132, 144, 81, - 133, 89, 184, 7, 8, 9, 10, 11, 12, 13, - 105, 15, 16, 17, 18, 19, 20, 21, 22, 23, - 24, 134, 26, 27, 28, 29, 30, 31, 135, 114, - 34, 35, 151, 156, 157, 109, 100, -22, 164, 171, - 169, 36, 172, 170, -22, -109, 165, -22, 182, -22, - 123, 5, -22, 173, 7, 8, 9, 10, 11, 12, - 13, 174, 15, 16, 17, 18, 19, 20, 21, 22, - 23, 24, 178, 26, 27, 28, 29, 30, 31, 179, - 185, 34, 35, 186, 187, 188, 137, 177, -22, 153, - 124, 147, 36, 75, 0, -22, -110, 0, -22, 0, - -22, 6, 146, -22, 0, 7, 8, 9, 10, 11, - 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, - 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 0, 0, 0, 0, 0, -22, - 0, 0, 0, 36, 0, 0, -22, 0, 139, -22, - 0, -22, 7, 8, 9, 10, 11, 12, 13, 0, + 89, 90, 39, 114, 95, 156, 10, 60, 146, 163, + 128, 74, 51, 86, 55, 4, 20, 99, 54, 148, + 100, 150, 63, 59, 102, 29, 52, 152, 56, 164, + 34, 134, 72, 114, 107, 114, 80, 56, 103, -94, + 88, 153, 89, 125, 76, 61, 147, 157, 128, 128, + 111, 160, 143, 127, -94, 67, 112, 87, 67, 92, + 74, 174, 110, 64, 98, 161, 111, 65, 62, 179, + 158, 159, 112, 66, 67, 67, 114, 113, 87, 147, + 49, 50, 52, 111, 125, 105, 106, 76, 157, 112, + 56, 67, 89, 91, 127, 96, 67, 108, 109, 104, + 89, 97, 121, 142, 113, 149, 131, 81, 132, 89, + 182, 7, 8, 9, 10, 11, 12, 13, 133, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 154, + 26, 27, 28, 29, 30, 31, 155, 108, 34, 35, + 99, 162, 167, 168, 170, -22, 169, 171, 172, 36, + 163, 176, -22, -108, 177, -22, 180, -22, 122, 5, + -22, 183, 7, 8, 9, 10, 11, 12, 13, 184, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 185, 26, 27, 28, 29, 30, 31, 186, 175, 34, + 35, 135, 145, 151, 123, 75, -22, 0, 0, 0, + 36, 0, 0, -22, -109, 144, -22, 0, -22, 6, + 0, -22, 0, 7, 8, 9, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, + 34, 35, 0, 0, 0, 0, 0, -22, 0, 0, + 0, 36, 0, 0, -22, 0, 137, -22, 0, -22, + 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, + 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, + 0, 0, 0, -87, 0, 0, 0, 0, 36, 0, + 0, 0, 173, 0, 0, -87, 7, 8, 9, 10, + 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, + 31, 0, 0, 34, 35, 0, 0, 0, 0, -87, + 0, 0, 0, 0, 36, 0, 0, 0, 178, 0, + 0, -87, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, 0, 34, - 35, 0, 0, 0, 0, -88, 0, 0, 0, 0, - 36, 0, 0, 0, 175, 0, 0, -88, 7, 8, + 35, 0, 0, 0, 0, -87, 0, 0, 0, 0, + 36, 0, 0, 0, 0, 0, 0, -87, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, 0, 0, - 0, -88, 0, 0, 0, 0, 36, 0, 0, 0, - 180, 0, 0, -88, 7, 8, 9, 10, 11, 12, + 0, 0, 125, 0, 0, 0, 126, 0, 0, 0, + 0, 0, 127, 0, 67, 7, 8, 9, 10, 11, + 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, + 0, 0, 34, 35, 0, 0, 0, 0, 181, 0, + 0, 0, 0, 36, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, - 0, 34, 35, 0, 0, 0, 0, -88, 0, 0, - 0, 0, 36, 0, 0, 0, 0, 0, 0, -88, - 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, - 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, - 0, 0, 0, 0, 126, 0, 0, 0, 127, 0, - 0, 0, 0, 0, 128, 0, 67, 7, 8, 9, - 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, - 30, 31, 0, 0, 34, 35, 0, 0, 0, 0, - 183, 0, 0, 0, 0, 36, 7, 8, 9, 10, - 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, - 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, - 31, 0, 0, 34, 35, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 36 + 0, 34, 35, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 36 }; #define yypact_value_is_default(Yystate) \ - (!!((Yystate) == (-111))) + (!!((Yystate) == (-94))) #define yytable_value_is_error(Yytable_value) \ YYID (0) static const yytype_int16 yycheck[] = { - 61, 61, 3, 40, 82, 26, 1, 58, 8, 39, - 32, 89, 39, 0, 67, 39, 39, 35, 18, 39, - 1, 1, 47, 48, 47, 35, 53, 27, 79, 53, - 52, 49, 32, 53, 55, 113, 66, 115, 59, 49, - 35, 71, 95, 104, 39, 155, 35, 113, 43, 115, - 128, 129, 89, 163, 49, 50, 51, 58, 39, 39, - 49, 31, 43, 43, 34, 128, 129, 23, 49, 49, - 51, 51, 39, 39, 46, 47, 43, 43, 79, 157, - 49, 49, 49, 49, 51, 51, 39, 54, 46, 39, - 43, 46, 47, 43, 155, 39, 49, 39, 51, 49, - 46, 51, 163, 48, 53, 53, 47, 50, 36, 1, - 50, 172, 172, 5, 6, 7, 8, 9, 10, 11, - 52, 13, 14, 15, 16, 17, 18, 19, 20, 21, - 22, 50, 24, 25, 26, 27, 28, 29, 50, 54, - 32, 33, 36, 46, 48, 46, 31, 39, 46, 38, - 50, 43, 48, 50, 46, 47, 32, 49, 36, 51, - 1, 1, 54, 50, 5, 6, 7, 8, 9, 10, - 11, 50, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 22, 50, 24, 25, 26, 27, 28, 29, 50, - 50, 32, 33, 50, 50, 50, 98, 157, 39, 116, - 84, 111, 43, 51, -1, 46, 47, -1, 49, -1, - 51, 1, 107, 54, -1, 5, 6, 7, 8, 9, - 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, -1, -1, -1, -1, -1, 39, - -1, -1, -1, 43, -1, -1, 46, -1, 1, 49, - -1, 51, 5, 6, 7, 8, 9, 10, 11, -1, + 61, 61, 3, 82, 67, 1, 8, 26, 1, 32, + 89, 40, 39, 58, 39, 0, 18, 31, 23, 112, + 34, 114, 46, 39, 35, 27, 53, 35, 53, 52, + 32, 94, 39, 112, 79, 114, 55, 53, 49, 35, + 59, 49, 103, 39, 39, 49, 39, 43, 127, 128, + 43, 35, 47, 49, 50, 51, 49, 58, 51, 66, + 89, 153, 39, 39, 71, 49, 43, 43, 49, 161, + 127, 128, 49, 49, 51, 51, 155, 54, 79, 39, + 46, 47, 53, 43, 39, 47, 48, 39, 43, 49, + 53, 51, 153, 39, 49, 46, 51, 46, 47, 52, + 161, 48, 47, 36, 54, 36, 50, 1, 50, 170, + 170, 5, 6, 7, 8, 9, 10, 11, 50, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 46, + 24, 25, 26, 27, 28, 29, 48, 46, 32, 33, + 31, 46, 50, 50, 48, 39, 38, 50, 50, 43, + 32, 50, 46, 47, 50, 49, 36, 51, 1, 1, + 54, 50, 5, 6, 7, 8, 9, 10, 11, 50, + 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + 50, 24, 25, 26, 27, 28, 29, 50, 155, 32, + 33, 97, 110, 115, 84, 51, 39, -1, -1, -1, + 43, -1, -1, 46, 47, 106, 49, -1, 51, 1, + -1, 54, -1, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, -1, -1, -1, -1, -1, 39, -1, -1, + -1, 43, -1, -1, 46, -1, 1, 49, -1, 51, + 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, + 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, + -1, -1, -1, 38, -1, -1, -1, -1, 43, -1, + -1, -1, 1, -1, -1, 50, 5, 6, 7, 8, + 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, + 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, + 29, -1, -1, 32, 33, -1, -1, -1, -1, 38, + -1, -1, -1, -1, 43, -1, -1, -1, 1, -1, + -1, 50, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, -1, -1, -1, 38, -1, -1, -1, -1, - 43, -1, -1, -1, 1, -1, -1, 50, 5, 6, + 43, -1, -1, -1, -1, -1, -1, 50, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, -1, -1, - -1, 38, -1, -1, -1, -1, 43, -1, -1, -1, - 1, -1, -1, 50, 5, 6, 7, 8, 9, 10, + -1, -1, 39, -1, -1, -1, 43, -1, -1, -1, + -1, -1, 49, -1, 51, 5, 6, 7, 8, 9, + 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, + 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, + -1, -1, 32, 33, -1, -1, -1, -1, 38, -1, + -1, -1, -1, 43, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, - -1, 32, 33, -1, -1, -1, -1, 38, -1, -1, - -1, -1, 43, -1, -1, -1, -1, -1, -1, 50, - 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, - 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, - 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, - -1, -1, -1, -1, 39, -1, -1, -1, 43, -1, - -1, -1, -1, -1, 49, -1, 51, 5, 6, 7, - 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, - 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, - 28, 29, -1, -1, 32, 33, -1, -1, -1, -1, - 38, -1, -1, -1, -1, 43, 5, 6, 7, 8, - 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, - 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, - 29, -1, -1, 32, 33, -1, -1, -1, -1, -1, - -1, -1, -1, -1, 43 + -1, 32, 33, -1, -1, -1, -1, -1, -1, -1, + -1, -1, 43 }; /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing @@ -873,16 +872,16 @@ static const yytype_uint8 yystos[] = 89, 49, 49, 46, 39, 43, 49, 51, 63, 64, 65, 72, 76, 77, 68, 98, 39, 99, 100, 60, 89, 1, 66, 90, 91, 92, 62, 66, 89, 67, - 83, 39, 1, 76, 73, 74, 75, 46, 48, 76, - 31, 34, 102, 35, 49, 52, 47, 48, 62, 46, - 47, 39, 43, 49, 54, 72, 78, 79, 93, 94, - 95, 96, 47, 1, 92, 76, 39, 43, 49, 72, - 84, 85, 50, 50, 50, 50, 75, 65, 97, 1, - 80, 81, 82, 83, 36, 47, 100, 96, 1, 39, - 78, 36, 78, 97, 35, 49, 46, 48, 1, 43, - 84, 84, 35, 49, 46, 32, 52, 87, 88, 50, - 50, 38, 48, 50, 50, 1, 80, 95, 50, 50, - 1, 80, 36, 38, 83, 50, 50, 50, 50 + 83, 39, 76, 73, 74, 75, 46, 48, 76, 31, + 34, 102, 35, 49, 52, 47, 48, 62, 46, 47, + 39, 43, 49, 54, 72, 78, 79, 93, 94, 95, + 96, 47, 1, 92, 76, 39, 43, 49, 72, 84, + 85, 50, 50, 50, 75, 65, 97, 1, 80, 81, + 82, 83, 36, 47, 100, 96, 1, 39, 78, 36, + 78, 97, 35, 49, 46, 48, 1, 43, 84, 84, + 35, 49, 46, 32, 52, 87, 88, 50, 50, 38, + 48, 50, 50, 1, 80, 95, 50, 50, 1, 80, + 36, 38, 83, 50, 50, 50, 50 }; #define yyerrok (yyerrstatus = 0) @@ -1928,12 +1927,12 @@ yyreduce: case 75: - { (yyval) = (yyvsp[(3) - (3)]); } + { (yyval) = (yyvsp[(2) - (2)]); } break; - case 76: + case 79: - { (yyval) = (yyvsp[(2) - (2)]); } + { (yyval) = (yyvsp[(4) - (4)]); } break; case 80: @@ -1943,12 +1942,12 @@ yyreduce: case 81: - { (yyval) = (yyvsp[(4) - (4)]); } + { (yyval) = (yyvsp[(2) - (2)]); } break; case 82: - { (yyval) = (yyvsp[(2) - (2)]); } + { (yyval) = (yyvsp[(3) - (3)]); } break; case 83: @@ -1958,45 +1957,40 @@ yyreduce: case 84: - { (yyval) = (yyvsp[(3) - (3)]); } - break; - - case 85: - { (yyval) = (yyvsp[(2) - (2)]); } break; - case 87: + case 86: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 88: + case 87: { (yyval) = NULL; } break; - case 91: + case 90: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 92: + case 91: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 93: + case 92: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 95: + case 94: { (yyval) = NULL; } break; - case 96: + case 95: { /* For version 2 checksums, we don't want to remember private parameter names. */ @@ -2005,39 +1999,39 @@ yyreduce: } break; - case 97: + case 96: { remove_node((yyvsp[(1) - (1)])); (yyval) = (yyvsp[(1) - (1)]); } break; - case 98: + case 97: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 99: + case 98: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 100: + case 99: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 101: + case 100: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 102: + case 101: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 103: + case 102: { struct string_list *decl = *(yyvsp[(2) - (3)]); *(yyvsp[(2) - (3)]) = NULL; @@ -2046,87 +2040,87 @@ yyreduce: } break; - case 104: + case 103: { (yyval) = NULL; } break; - case 106: + case 105: { remove_list((yyvsp[(2) - (2)]), &(*(yyvsp[(1) - (2)]))->next); (yyval) = (yyvsp[(2) - (2)]); } break; - case 107: + case 106: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 108: + case 107: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 109: + case 108: { (yyval) = NULL; } break; - case 112: + case 111: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 113: + case 112: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 114: + case 113: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 115: + case 114: { (yyval) = NULL; } break; - case 118: + case 117: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 119: + case 118: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 120: + case 119: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 122: + case 121: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 123: + case 122: { (yyval) = NULL; } break; - case 125: + case 124: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 126: + case 125: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 129: + case 128: { const char *name = strdup((*(yyvsp[(1) - (1)]))->string); @@ -2134,7 +2128,7 @@ yyreduce: } break; - case 130: + case 129: { const char *name = strdup((*(yyvsp[(1) - (3)]))->string); @@ -2143,17 +2137,17 @@ yyreduce: } break; - case 131: + case 130: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 132: + case 131: { (yyval) = NULL; } break; - case 134: + case 133: { export_symbol((*(yyvsp[(3) - (5)]))->string); (yyval) = (yyvsp[(5) - (5)]); } break; -- cgit v1.2.3-59-g8ed1b From c3f0d0bc5b01ad90c45276952802455750444b4f Mon Sep 17 00:00:00 2001 From: Mark Charlebois Date: Fri, 31 Mar 2017 22:38:13 +0200 Subject: kbuild, LLVMLinux: Add -Werror to cc-option to support clang MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clang will warn about unknown warnings but will not return false unless -Werror is set. GCC will return false if an unknown warning is passed. Adding -Werror make both compiler behave the same. [arnd: it turns out we need the same patch for testing whether -ffunction-sections works right with gcc. I've build tested extensively with this patch applied, so let's just merge this one now.] Signed-off-by: Mark Charlebois Signed-off-by: Behan Webster Reviewed-by: Jan-Simon Möller Signed-off-by: Arnd Bergmann Acked-by: Kees Cook Signed-off-by: Masahiro Yamada --- scripts/Kbuild.include | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'scripts') diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index d6ca649cb0e9..a70fd26204de 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -116,12 +116,12 @@ CC_OPTION_CFLAGS = $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) cc-option = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) # cc-option-yn # Usage: flag := $(call cc-option-yn,-march=winchip-c6) cc-option-yn = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n) # cc-option-align # Prefix align with either -falign or -malign @@ -131,7 +131,7 @@ cc-option-align = $(subst -functions=0,,\ # cc-disable-warning # Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable) cc-disable-warning = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1))) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1))) # cc-name # Expands to either gcc or clang -- cgit v1.2.3-59-g8ed1b From ebf003f0cfb3705e60d40dedc3ec949176c741af Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Wed, 12 Apr 2017 12:43:52 -0700 Subject: kbuild: Consolidate header generation from ASM offset information Largely redundant code is used in different places to generate C headers from offset information extracted from assembly language output. Consolidate the code in Makefile.lib and use this instead. Signed-off-by: Matthias Kaehlcke Signed-off-by: Masahiro Yamada --- Kbuild | 25 ------------------------- arch/ia64/kernel/Makefile | 26 ++------------------------ scripts/Makefile.lib | 28 ++++++++++++++++++++++++++++ scripts/mod/Makefile | 28 ++-------------------------- 4 files changed, 32 insertions(+), 75 deletions(-) (limited to 'scripts') diff --git a/Kbuild b/Kbuild index 3d0ae152af7c..94c752762bc2 100644 --- a/Kbuild +++ b/Kbuild @@ -7,31 +7,6 @@ # 4) Check for missing system calls # 5) Generate constants.py (may need bounds.h) -# Default sed regexp - multiline due to syntax constraints -define sed-y - "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:->::; p;}" -endef - -# Use filechk to avoid rebuilds when a header changes, but the resulting file -# does not -define filechk_offsets - (set -e; \ - echo "#ifndef $2"; \ - echo "#define $2"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y); \ - echo ""; \ - echo "#endif" ) -endef - ##### # 1) Generate bounds.h diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 3686d6abafde..9edda5466020 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -50,32 +50,10 @@ CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31 # The gate DSO image is built using a special linker script. include $(src)/Makefile.gate -# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config -define sed-y - "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}" -endef -quiet_cmd_nr_irqs = GEN $@ -define cmd_nr_irqs - (set -e; \ - echo "#ifndef __ASM_NR_IRQS_H__"; \ - echo "#define __ASM_NR_IRQS_H__"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " *"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y) $<; \ - echo ""; \ - echo "#endif" ) > $@ -endef - # We use internal kbuild rules to avoid the "is up to date" message from make arch/$(SRCARCH)/kernel/nr-irqs.s: arch/$(SRCARCH)/kernel/nr-irqs.c $(Q)mkdir -p $(dir $@) $(call if_changed_dep,cc_s_c) -include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s - $(Q)mkdir -p $(dir $@) - $(call cmd,nr_irqs) +include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s FORCE + $(call filechk,offsets,__ASM_NR_IRQS_H__) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 0a07f9014944..dd567e5d59e0 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -408,3 +408,31 @@ quiet_cmd_xzmisc = XZMISC $@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ (rm -f $@ ; false) + +# ASM offsets +# --------------------------------------------------------------------------- + +# Default sed regexp - multiline due to syntax constraints +define sed-offsets + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-offsets); \ + echo ""; \ + echo "#endif" ) +endef diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index 19d9bcadc0cc..b497d9764dcf 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -7,32 +7,8 @@ modpost-objs := modpost.o file2alias.o sumversion.o devicetable-offsets-file := devicetable-offsets.h -define sed-y - "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:->::; p;}" -endef - -quiet_cmd_offsets = GEN $@ -define cmd_offsets - (set -e; \ - echo "#ifndef __DEVICETABLE_OFFSETS_H__"; \ - echo "#define __DEVICETABLE_OFFSETS_H__"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " *"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y) $<; \ - echo ""; \ - echo "#endif" ) > $@ -endef - -$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s - $(call if_changed,offsets) +$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE + $(call filechk,offsets,__DEVICETABLE_OFFSETS_H__) targets += $(devicetable-offsets-file) devicetable-offsets.s -- cgit v1.2.3-59-g8ed1b From 7dd47b95b0f54f2057d40af6e66d477e3fe95d13 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 21 Apr 2017 15:21:10 +0900 Subject: kbuild: consolidate redundant sed script ASM offset generation This part ended up in redundant code after touched by multiple people. [1] Commit 3234282f33b2 ("x86, asm: Fix CFI macro invocations to deal with shortcomings in gas") added parentheses for defined expressions to support old gas for x86. [2] Commit a22dcdb0032c ("x86, asm: Fix ancient-GAS workaround") split the pattern into two to avoid parentheses for non-numeric expressions. [3] Commit 95a2f6f72d37 ("Partially revert patch that encloses asm-offset.h numbers in brackets") removed parentheses from numeric expressions as well because parentheses in MN10300 assembly have a special meaning (pointer access). Apparently, there is a conflict between [1] and [3]. After all, [3] took precedence, and a long time has passed since then. Now, merge the two patterns again because the first one is covered by the other. Signed-off-by: Masahiro Yamada Reviewed-by: Matthias Kaehlcke --- scripts/Makefile.lib | 1 - 1 file changed, 1 deletion(-) (limited to 'scripts') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index dd567e5d59e0..8109c133887d 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -415,7 +415,6 @@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ # Default sed regexp - multiline due to syntax constraints define sed-offsets "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ s:->::; p;}" endef -- cgit v1.2.3-59-g8ed1b From cf0c3e68aa81f992b0301f62e341b710d385bf68 Mon Sep 17 00:00:00 2001 From: Jeroen Hofstee Date: Fri, 21 Apr 2017 15:21:11 +0900 Subject: kbuild: fix asm-offset generation to work with clang KBuild abuses the asm statement to write to a file and clang chokes about these invalid asm statements. Hack it even more by fooling this is actual valid asm code. [masahiro: Import Jeroen's work for U-Boot: http://patchwork.ozlabs.org/patch/375026/ Tweak sed script a little to avoid garbage '#' for GCC case, like #define NR_PAGEFLAGS 23 /* __NR_PAGEFLAGS # */ ] Signed-off-by: Jeroen Hofstee Signed-off-by: Masahiro Yamada Reviewed-by: Matthias Kaehlcke Tested-by: Matthias Kaehlcke --- include/linux/kbuild.h | 6 +++--- scripts/Makefile.lib | 8 ++++++-- 2 files changed, 9 insertions(+), 5 deletions(-) (limited to 'scripts') diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h index 22a72198c14b..4e80f3a9ad58 100644 --- a/include/linux/kbuild.h +++ b/include/linux/kbuild.h @@ -2,14 +2,14 @@ #define __LINUX_KBUILD_H #define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + asm volatile("\n.ascii \"->" #sym " %0 " #val "\"" : : "i" (val)) -#define BLANK() asm volatile("\n->" : : ) +#define BLANK() asm volatile("\n.ascii \"->\"" : : ) #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)) #define COMMENT(x) \ - asm volatile("\n->#" x) + asm volatile("\n.ascii \"->#" x "\"") #endif diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 8109c133887d..2209ed696fb4 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -413,10 +413,14 @@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ # --------------------------------------------------------------------------- # Default sed regexp - multiline due to syntax constraints +# +# Use [:space:] because LLVM's integrated assembler inserts around +# the .ascii directive whereas GCC keeps the as-is. define sed-offsets - "/^->/{s:->#\(.*\):/* \1 */:; \ + 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ + /^->/{s:->#\(.*\):/* \1 */:; \ s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:->::; p;}" + s:->::; p;}' endef # Use filechk to avoid rebuilds when a header changes, but the resulting file -- cgit v1.2.3-59-g8ed1b From a0ae981eba8f07dbc74bce38fd3a462b69a5bc8e Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 13 Apr 2017 07:25:21 +0900 Subject: kbuild: drop -Wno-unknown-warning-option from clang options Since commit c3f0d0bc5b01 ("kbuild, LLVMLinux: Add -Werror to cc-option to support clang"), cc-option and friends work nicely for clang. However, -Wno-unknown-warning-option makes clang happy with any unknown warning options even if -Werror is specified. Once -Wno-unknown-warning-option is added, any succeeding call of cc-disable-warning is evaluated positive, then unknown warning options are accepted. This should be dropped. Signed-off-by: Masahiro Yamada --- Makefile | 1 - scripts/Makefile.extrawarn | 1 - 2 files changed, 2 deletions(-) (limited to 'scripts') diff --git a/Makefile b/Makefile index 245852f7b312..f178b9a7b56f 100644 --- a/Makefile +++ b/Makefile @@ -689,7 +689,6 @@ KBUILD_CFLAGS += $(stackp-flag) ifeq ($(cc-name),clang) KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) -KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) KBUILD_CFLAGS += $(call cc-disable-warning, gnu) diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 7c321a603b07..fb3522fd8702 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -64,7 +64,6 @@ ifeq ($(cc-name),clang) KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides) KBUILD_CFLAGS += $(call cc-disable-warning, unused-value) KBUILD_CFLAGS += $(call cc-disable-warning, format) -KBUILD_CFLAGS += $(call cc-disable-warning, unknown-warning-option) KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare) KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length) KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized) -- cgit v1.2.3-59-g8ed1b From 433db3e260bc8134d4a46ddf20b3668937e12556 Mon Sep 17 00:00:00 2001 From: Vinícius Tinti Date: Mon, 24 Apr 2017 13:04:58 -0700 Subject: kbuild: Add support to generate LLVM assembly files MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add rules to kbuild in order to generate LLVM assembly files with the .ll extension when using clang. # from c code make CC=clang kernel/pid.ll Signed-off-by: Vinícius Tinti Signed-off-by: Behan Webster Signed-off-by: Matthias Kaehlcke Signed-off-by: Masahiro Yamada --- .gitignore | 1 + Makefile | 5 +++++ scripts/Makefile.build | 8 ++++++++ 3 files changed, 14 insertions(+) (limited to 'scripts') diff --git a/.gitignore b/.gitignore index c2ed4ecb0acd..0c39aa20b6ba 100644 --- a/.gitignore +++ b/.gitignore @@ -33,6 +33,7 @@ *.lzo *.patch *.gcno +*.ll modules.builtin Module.symvers *.dwo diff --git a/Makefile b/Makefile index 88d607245791..439443176161 100644 --- a/Makefile +++ b/Makefile @@ -1373,6 +1373,8 @@ help: @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' @echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[ois] - Build specified target only' + @echo ' dir/file.ll - Build the LLVM assembly file' + @echo ' (requires compiler support for LLVM assembly generation)' @echo ' dir/file.lst - Build specified mixed source/assembly target only' @echo ' (requires a recent binutils and recent build (System.map))' @echo ' dir/file.ko - Build module including final link' @@ -1557,6 +1559,7 @@ clean: $(clean-dirs) -o -name '*.symtypes' -o -name 'modules.order' \ -o -name modules.builtin -o -name '.tmp_*.o.*' \ -o -name '*.c.[012]*.*' \ + -o -name '*.ll' \ -o -name '*.gcno' \) -type f -print | xargs rm -f # Generate tags for editors @@ -1660,6 +1663,8 @@ endif $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.ll: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) # Modules /: prepare scripts FORCE diff --git a/scripts/Makefile.build b/scripts/Makefile.build index d883116ebaa4..e5f1425c601f 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -177,6 +177,14 @@ cmd_cc_symtypes_c = \ $(obj)/%.symtypes : $(src)/%.c FORCE $(call cmd,cc_symtypes_c) +# LLVM assembly +# Generate .ll files from .c +quiet_cmd_cc_ll_c = CC $(quiet_modtag) $@ + cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $< + +$(obj)/%.ll: $(src)/%.c FORCE + $(call if_changed_dep,cc_ll_c) + # C (.c) files # The C file is compiled and updated dependency information is generated. # (See cmd_cc_o_c + relevant part of rule_cc_o_c) -- cgit v1.2.3-59-g8ed1b From e8a3118e1f5cbe0c26704419390bf074689b349f Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 21 Apr 2017 17:16:20 +0200 Subject: objtool: make it visible in make V=1 output It is currently impossible to see what is going on with objtool when building, so call echo-cmd to see the actions: gcc -Wp,-MD,arch/x86/entry/.entry_64.o.d -nostdinc -isystem ... ./tools/objtool/objtool check "arch/x86/entry/entry_64.o"; Signed-off-by: Jiri Slaby Cc: Michal Marek Cc: linux-kbuild@vger.kernel.org Cc: Josh Poimboeuf Signed-off-by: Masahiro Yamada --- scripts/Makefile.build | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'scripts') diff --git a/scripts/Makefile.build b/scripts/Makefile.build index e5f1425c601f..733e044fff8b 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -280,14 +280,14 @@ define rule_cc_o_c $(call echo-cmd,checksrc) $(cmd_checksrc) \ $(call cmd_and_fixdep,cc_o_c) \ $(cmd_modversions_c) \ - $(cmd_objtool) \ + $(call echo-cmd,objtool) $(cmd_objtool) \ $(call echo-cmd,record_mcount) $(cmd_record_mcount) endef define rule_as_o_S $(call cmd_and_fixdep,as_o_S) \ $(cmd_modversions_S) \ - $(cmd_objtool) + $(call echo-cmd,objtool) $(cmd_objtool) endef # List module undefined symbols (or empty line if not enabled) -- cgit v1.2.3-59-g8ed1b From f55813b4d8bfc9f35fda87bc1e21b7f26835fc5c Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 4 May 2017 10:14:57 +0900 Subject: kbuild: dtbinst: remove unnecessary __dtbs_install_prep target Since commit 5399eb9b3908 ("dtbsinstall: don't move target directory out of the way"), the target __dtbs_install_prep is invoked just for creating the install directory, but all the necessary directories are automatically created by: cmd_dtb_install = mkdir -p $(2); cp $< $(2) Signed-off-by: Masahiro Yamada --- scripts/Makefile.dtbinst | 8 -------- 1 file changed, 8 deletions(-) (limited to 'scripts') diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst index a1be75d0a5fd..34614a48b717 100644 --- a/scripts/Makefile.dtbinst +++ b/scripts/Makefile.dtbinst @@ -20,12 +20,6 @@ include include/config/auto.conf include scripts/Kbuild.include include $(src)/Makefile -PHONY += __dtbs_install_prep -__dtbs_install_prep: -ifeq ("$(dtbinst-root)", "$(obj)") - $(Q)mkdir -p $(INSTALL_DTBS_PATH) -endif - dtbinst-files := $(dtb-y) dtbinst-dirs := $(dts-dirs) @@ -35,8 +29,6 @@ quiet_cmd_dtb_install = INSTALL $< install-dir = $(patsubst $(dtbinst-root)%,$(INSTALL_DTBS_PATH)%,$(obj)) -$(dtbinst-files) $(dtbinst-dirs): | __dtbs_install_prep - $(dtbinst-files): %.dtb: $(obj)/%.dtb $(call cmd,dtb_install,$(install-dir)) -- cgit v1.2.3-59-g8ed1b