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kbuild: genksyms parser: fix the __attribute__ rule
We are having two kinds of problems with genksyms today: fake checksum changes without actual ABI changes, and changes which we would rather like to ignore (such as an additional field at the end of a structure that modules are not supposed to touch, for example). I have thought about ways to improve genksyms and compute checksums differently to avoid those problems, but in the end I don't see a fundamentally better way. So here are some genksyms patches for at least making the checksums more easily manageable, if we cannot fully fix them. In addition to the bugfixes (the first two patches), this allows genksyms to track checksum changes and report why a checksum changed (third patch), and to selectively ignore changes (fourth patch). This patch: Gcc __attribute__ definitions may occur repeatedly, e.g., static int foo __attribute__((__used__)) __attribute__((aligned (16))); The genksyms parser does not understand this, and generates a syntax error. Fix this case. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Andreas Gruenbacher
Sam Ravnborg
parent
11ddad3960
commit
94aa3d716e
2 changed files with 73 additions and 73 deletions
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@ -504,7 +504,7 @@ static const yytype_uint16 yyprhs[] =
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239, 242, 245, 247, 248, 250, 252, 257, 262, 265,
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269, 273, 277, 278, 280, 283, 287, 291, 292, 294,
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296, 299, 303, 306, 307, 309, 311, 315, 318, 321,
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323, 326, 327, 329, 332, 333, 335
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323, 326, 327, 330, 333, 334, 336
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};
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/* YYRHS -- A `-1'-separated list of the rules' RHS. */
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@ -542,9 +542,9 @@ static const yytype_int8 yyrhs[] =
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-1, -1, 89, -1, 90, -1, 89, 90, -1, 64,
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91, 44, -1, 1, 44, -1, -1, 92, -1, 93,
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-1, 92, 46, 93, -1, 76, 95, -1, 37, 94,
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-1, 94, -1, 52, 34, -1, -1, 31, -1, 30,
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44, -1, -1, 30, -1, 29, 47, 37, 49, 44,
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-1
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-1, 94, -1, 52, 34, -1, -1, 95, 31, -1,
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30, 44, -1, -1, 30, -1, 29, 47, 37, 49,
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44, -1
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};
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/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
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@ -647,7 +647,7 @@ static const yytype_uint8 yyr2[] =
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2, 2, 1, 0, 1, 1, 4, 4, 2, 3,
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3, 3, 0, 1, 2, 3, 3, 0, 1, 1,
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2, 3, 2, 0, 1, 1, 3, 2, 2, 1,
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2, 0, 1, 2, 0, 1, 5
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2, 0, 2, 2, 0, 1, 5
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};
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/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
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@ -667,9 +667,9 @@ static const yytype_uint8 yydefact[] =
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0, 66, 125, 101, 121, 71, 0, 7, 112, 106,
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76, 77, 0, 0, 0, 121, 75, 0, 114, 115,
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119, 105, 0, 110, 124, 0, 36, 0, 73, 72,
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61, 20, 122, 102, 0, 93, 0, 84, 87, 88,
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118, 0, 76, 0, 120, 74, 117, 80, 0, 111,
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0, 35, 126, 0, 21, 103, 70, 94, 56, 0,
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61, 20, 102, 0, 93, 0, 84, 87, 88, 118,
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0, 76, 0, 120, 74, 117, 80, 0, 111, 0,
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35, 126, 122, 0, 21, 103, 70, 94, 56, 0,
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93, 90, 92, 69, 83, 0, 82, 81, 0, 0,
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116, 104, 0, 95, 0, 91, 98, 0, 85, 89,
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79, 78, 100, 99, 0, 0, 97, 96
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@ -680,44 +680,44 @@ static const yytype_int16 yydefgoto[] =
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{
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-1, 1, 2, 3, 35, 72, 55, 36, 64, 65,
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66, 75, 38, 39, 40, 41, 42, 67, 86, 87,
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43, 114, 69, 105, 106, 126, 127, 128, 129, 151,
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43, 114, 69, 105, 106, 125, 126, 127, 128, 151,
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152, 44, 144, 145, 54, 76, 77, 78, 107, 108,
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109, 110, 123, 45, 94, 46
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109, 110, 122, 45, 94, 46
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};
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/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
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STATE-NUM. */
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#define YYPACT_NINF -135
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#define YYPACT_NINF -134
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static const yytype_int16 yypact[] =
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{
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-135, 11, -135, 312, -135, -135, 24, -135, -135, -135,
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-135, -135, -23, -135, -2, -135, -135, -135, -135, -135,
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-135, -135, -135, -135, -17, -135, -11, -135, -135, -135,
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-3, 16, 26, -135, -135, -135, -135, 34, 482, -135,
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-135, -135, -135, -135, -135, -135, -135, -135, -135, -135,
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-8, -135, 22, 97, -135, 482, 22, -135, 482, 56,
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-135, -135, 12, 10, 50, 49, -135, 34, -13, 15,
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-135, -135, 482, -135, 47, -25, 51, 145, -135, -135,
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34, -135, 356, 52, 71, 77, -135, 10, -135, -135,
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34, -135, -135, -135, 68, -135, 193, -135, -135, -135,
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48, -135, 6, 93, 37, 68, 18, 85, 84, -135,
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-135, -135, 87, -135, 102, 86, -135, 89, -135, -135,
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-135, -135, -135, 90, 88, 401, 94, 100, 101, -135,
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-135, 99, -135, 108, -135, -135, -135, -135, 230, -135,
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-25, -135, -135, 105, -135, -135, -135, -135, -135, 9,
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42, -135, 28, -135, -135, 445, -135, -135, 119, 125,
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-135, -135, 126, -135, 128, -135, -135, 267, -135, -135,
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-135, -135, -135, -135, 129, 130, -135, -135
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-134, 16, -134, 312, -134, -134, 20, -134, -134, -134,
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-134, -134, -18, -134, -3, -134, -134, -134, -134, -134,
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-134, -134, -134, -134, -26, -134, -25, -134, -134, -134,
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-7, 5, 27, -134, -134, -134, -134, 46, 482, -134,
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-134, -134, -134, -134, -134, -134, -134, -134, -134, -134,
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-8, -134, 30, 97, -134, 482, 30, -134, 482, 7,
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-134, -134, 12, 10, 42, 55, -134, 46, -15, 15,
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-134, -134, 482, -134, 25, 26, 47, 145, -134, -134,
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46, -134, 356, 39, 71, 77, -134, 10, -134, -134,
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46, -134, -134, -134, -134, -134, 193, -134, -134, -134,
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75, -134, 6, 95, 43, -134, 28, 86, 85, -134,
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-134, -134, 88, -134, 103, 87, -134, 91, -134, -134,
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-134, -134, -23, 90, 401, 94, 101, 102, -134, -134,
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98, -134, 108, -134, -134, 109, -134, 230, -134, 26,
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-134, -134, -134, 134, -134, -134, -134, -134, -134, 9,
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48, -134, 35, -134, -134, 445, -134, -134, 125, 126,
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-134, -134, 128, -134, 129, -134, -134, 267, -134, -134,
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-134, -134, -134, -134, 130, 131, -134, -134
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};
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/* YYPGOTO[NTERM-NUM]. */
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static const yytype_int16 yypgoto[] =
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{
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-135, -135, 179, -135, -135, -135, -135, -47, -135, -135,
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91, 0, -58, -37, -135, -135, -135, -73, -135, -135,
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-48, -32, -135, -38, -135, -134, -135, -135, 29, -63,
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-135, -135, -135, -135, -20, -135, -135, 106, -135, -135,
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45, 95, 82, -135, -135, -135
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-134, -134, 180, -134, -134, -134, -134, -33, -134, -134,
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93, 0, -58, -37, -134, -134, -134, -73, -134, -134,
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-54, -32, -134, -81, -134, -133, -134, -134, 29, -50,
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-134, -134, -134, -134, -20, -134, -134, 110, -134, -134,
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49, 96, 80, -134, -134, -134
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};
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/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
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@ -727,26 +727,26 @@ static const yytype_int16 yypgoto[] =
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#define YYTABLE_NINF -109
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static const yytype_int16 yytable[] =
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{
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82, 70, 104, 37, 159, 68, 57, 131, 79, 49,
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162, 4, 100, 84, 50, 88, 101, 92, 10, 93,
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52, 51, 102, 63, 71, 97, 56, 103, 20, 104,
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85, 104, 73, 175, 53, 91, 81, 29, 125, 120,
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53, 33, -93, 132, 58, 70, 147, 101, 95, 61,
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163, 137, 150, 102, 63, 80, 149, 63, -93, 62,
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63, 166, 96, 59, 133, 138, 135, 104, 47, 48,
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60, 61, 80, 53, 132, 167, 150, 150, 101, 147,
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125, 62, 63, 163, 102, 63, 164, 165, 70, 149,
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63, 98, 99, 83, 89, 90, 111, 125, 74, 122,
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103, 117, 7, 8, 9, 10, 11, 12, 13, 125,
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82, 70, 104, 37, 159, 68, 57, 130, 142, 88,
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162, 52, 56, 84, 49, 92, 4, 93, 10, 50,
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51, 132, 79, 134, 71, 53, 53, 143, 20, 104,
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85, 104, 73, 120, 175, 91, 81, 29, 124, 97,
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58, 33, -93, 131, 83, 70, 147, 101, 95, 61,
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163, 150, 59, 102, 63, 80, 149, 63, -93, 62,
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63, 136, 96, 100, 47, 48, 104, 101, 166, 98,
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99, 60, 80, 102, 63, 137, 150, 150, 103, 124,
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131, 53, 167, 61, 101, 147, 89, 70, 117, 163,
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102, 63, 111, 62, 63, 149, 63, 124, 74, 164,
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165, 90, 7, 8, 9, 10, 11, 12, 13, 124,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
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118, 26, 27, 28, 29, 30, 119, 134, 33, 139,
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140, 98, 92, 142, -22, 141, 154, 146, 34, 161,
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143, -22, -107, 153, -22, -22, 112, 155, 156, -22,
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118, 26, 27, 28, 29, 30, 119, 103, 33, 133,
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138, 139, 98, 92, -22, 141, 140, 154, 34, 146,
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142, -22, -107, 153, -22, -22, 112, 156, 155, -22,
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7, 8, 9, 10, 11, 12, 13, 157, 15, 16,
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17, 18, 19, 20, 21, 22, 23, 24, 170, 26,
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27, 28, 29, 30, 171, 172, 33, 173, 176, 177,
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5, 121, -22, 113, 169, 160, 34, 136, 0, -22,
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-108, 0, -22, -22, 124, 130, 0, -22, 7, 8,
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17, 18, 19, 20, 21, 22, 23, 24, 161, 26,
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27, 28, 29, 30, 170, 171, 33, 172, 173, 176,
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177, 5, -22, 121, 169, 135, 34, 113, 160, -22,
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-108, 0, -22, -22, 123, 0, 129, -22, 7, 8,
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9, 10, 11, 12, 13, 0, 15, 16, 17, 18,
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19, 20, 21, 22, 23, 24, 0, 26, 27, 28,
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29, 30, 0, 0, 33, 0, 0, 0, 0, -86,
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@ -784,26 +784,26 @@ static const yytype_int16 yytable[] =
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static const yytype_int16 yycheck[] =
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{
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58, 38, 75, 3, 138, 37, 26, 1, 55, 32,
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1, 0, 37, 1, 37, 63, 41, 30, 8, 32,
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37, 23, 47, 48, 32, 72, 37, 52, 18, 102,
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62, 104, 52, 167, 51, 67, 56, 27, 96, 87,
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51, 31, 33, 37, 47, 82, 37, 41, 33, 37,
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41, 33, 125, 47, 48, 55, 47, 48, 49, 47,
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48, 33, 47, 47, 102, 47, 104, 140, 44, 45,
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44, 37, 72, 51, 37, 47, 149, 150, 41, 37,
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138, 47, 48, 41, 47, 48, 149, 150, 125, 47,
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48, 44, 45, 37, 44, 46, 45, 155, 1, 31,
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52, 49, 5, 6, 7, 8, 9, 10, 11, 167,
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58, 38, 75, 3, 137, 37, 26, 1, 31, 63,
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1, 37, 37, 1, 32, 30, 0, 32, 8, 37,
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23, 102, 55, 104, 32, 51, 51, 50, 18, 102,
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62, 104, 52, 87, 167, 67, 56, 27, 96, 72,
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47, 31, 33, 37, 37, 82, 37, 41, 33, 37,
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41, 124, 47, 47, 48, 55, 47, 48, 49, 47,
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48, 33, 47, 37, 44, 45, 139, 41, 33, 44,
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45, 44, 72, 47, 48, 47, 149, 150, 52, 137,
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37, 51, 47, 37, 41, 37, 44, 124, 49, 41,
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47, 48, 45, 47, 48, 47, 48, 155, 1, 149,
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150, 46, 5, 6, 7, 8, 9, 10, 11, 167,
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13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
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49, 24, 25, 26, 27, 28, 49, 34, 31, 44,
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46, 44, 30, 44, 37, 49, 36, 49, 41, 34,
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50, 44, 45, 49, 47, 48, 1, 46, 49, 52,
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49, 24, 25, 26, 27, 28, 49, 52, 31, 34,
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44, 46, 44, 30, 37, 44, 49, 36, 41, 49,
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31, 44, 45, 49, 47, 48, 1, 49, 46, 52,
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5, 6, 7, 8, 9, 10, 11, 49, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 49, 24,
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15, 16, 17, 18, 19, 20, 21, 22, 34, 24,
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25, 26, 27, 28, 49, 49, 31, 49, 49, 49,
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1, 90, 37, 77, 155, 140, 41, 105, -1, 44,
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45, -1, 47, 48, 1, 100, -1, 52, 5, 6,
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49, 1, 37, 90, 155, 105, 41, 77, 139, 44,
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45, -1, 47, 48, 1, -1, 100, 52, 5, 6,
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7, 8, 9, 10, 11, -1, 13, 14, 15, 16,
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17, 18, 19, 20, 21, 22, -1, 24, 25, 26,
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27, 28, -1, -1, 31, -1, -1, -1, -1, 36,
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@ -855,9 +855,9 @@ static const yytype_uint8 yystos[] =
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46, 74, 30, 32, 97, 33, 47, 60, 44, 45,
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37, 41, 47, 52, 70, 76, 77, 91, 92, 93,
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94, 45, 1, 90, 74, 48, 49, 49, 49, 49,
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73, 63, 31, 95, 1, 65, 78, 79, 80, 81,
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94, 1, 37, 76, 34, 76, 95, 33, 47, 44,
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46, 49, 44, 50, 85, 86, 49, 37, 41, 47,
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73, 63, 95, 1, 65, 78, 79, 80, 81, 94,
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1, 37, 76, 34, 76, 95, 33, 47, 44, 46,
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49, 44, 31, 50, 85, 86, 49, 37, 41, 47,
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70, 82, 83, 49, 36, 46, 49, 49, 1, 78,
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93, 34, 1, 41, 82, 82, 33, 47, 36, 81,
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49, 49, 49, 49, 1, 78, 49, 49
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@ -446,7 +446,7 @@ member_bitfield_declarator:
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attribute_opt:
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/* empty */ { $$ = NULL; }
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| ATTRIBUTE_PHRASE
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| attribute_opt ATTRIBUTE_PHRASE
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;
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asm_definition:
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