/* * BPF asm code lexer * * This program is free software; you can distribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * * Syntax kept close to: * * Steven McCanne and Van Jacobson. 1993. The BSD packet filter: a new * architecture for user-level packet capture. In Proceedings of the * USENIX Winter 1993 Conference Proceedings on USENIX Winter 1993 * Conference Proceedings (USENIX'93). USENIX Association, Berkeley, * CA, USA, 2-2. * * Copyright 2013 Daniel Borkmann * Licensed under the GNU General Public License, version 2.0 (GPLv2) */ %{ #include #include #include #include #include #include "bpf_exp.yacc.h" extern void yyerror(const char *str); %} %option align %option ecs %option nounput %option noreject %option noinput %option noyywrap %option 8bit %option caseless %option yylineno %% "ldb" { return OP_LDB; } "ldh" { return OP_LDH; } "ld" { return OP_LD; } "ldi" { return OP_LDI; } "ldx" { return OP_LDX; } "ldxi" { return OP_LDXI; } "ldxb" { return OP_LDXB; } "st" { return OP_ST; } "stx" { return OP_STX; } "jmp" { return OP_JMP; } "ja" { return OP_JMP; } "jeq" { return OP_JEQ; } "jneq" { return OP_JNEQ; } "jne" { return OP_JNEQ; } "jlt" { return OP_JLT; } "jle" { return OP_JLE; } "jgt" { return OP_JGT; } "jge" { return OP_JGE; } "jset" { return OP_JSET; } "add" { return OP_ADD; } "sub" { return OP_SUB; } "mul" { return OP_MUL; } "div" { return OP_DIV; } "mod" { return OP_MOD; } "neg" { return OP_NEG; } "and" { return OP_AND; } "xor" { return OP_XOR; } "or" { return OP_OR; } "lsh" { return OP_LSH; } "rsh" { return OP_RSH; } "ret" { return OP_RET; } "tax" { return OP_TAX; } "txa" { return OP_TXA; } "#"?("len") { return K_PKT_LEN; } "#"?("proto") { yylval.number = SKF_AD_PROTOCOL; return extension; } "#"?("type") { yylval.number = SKF_AD_PKTTYPE; return extension; } "#"?("poff") { yylval.number = SKF_AD_PAY_OFFSET; return extension; } "#"?("ifidx") { yylval.number = SKF_AD_IFINDEX; return extension; } "#"?("nla") { yylval.number = SKF_AD_NLATTR; return extension; } "#"?("nlan") { yylval.number = SKF_AD_NLATTR_NEST; return extension; } "#"?("mark") { yylval.number = SKF_AD_MARK; return extension; } "#"?("queue") { yylval.number = SKF_AD_QUEUE; return extension; } "#"?("hatype") { yylval.number = SKF_AD_HATYPE; return extension; } "#"?("rxhash") { yylval.number = SKF_AD_RXHASH; return extension; } "#"?("cpu") { yylval.number = SKF_AD_CPU; return extension; } "#"?("vlan_tci") { yylval.number = SKF_AD_VLAN_TAG; return extension; } "#"?("vlan_pr") { yylval.number = SKF_AD_VLAN_TAG_PRESENT; return extension; } "#"?("vlan_avail") { yylval.number = SKF_AD_VLAN_TAG_PRESENT; return extension; } "#"?("vlan_tpid") { yylval.number = SKF_AD_VLAN_TPID; return extension; } "#"?("rand") { yylval.number = SKF_AD_RANDOM; return extension; } ":" { return ':'; } "," { return ','; } "#" { return '#'; } "%" { return '%'; } "[" { return '['; } "]" { return ']'; } "(" { return '('; } ")" { return ')'; } "x" { return 'x'; } "a" { return 'a'; } "+" { return '+'; } "M" { return 'M'; } "*" { return '*'; } "&" { return '&'; } ([0][x][a-fA-F0-9]+) { yylval.number = strtoul(yytext, NULL, 16); return number; } ([0][b][0-1]+) { yylval.number = strtol(yytext + 2, NULL, 2); return number; } (([0])|([-+]?[1-9][0-9]*)) { yylval.number = strtol(yytext, NULL, 10); return number; } ([0][0-9]+) { yylval.number = strtol(yytext + 1, NULL, 8); return number; } [a-zA-Z_][a-zA-Z0-9_]+ { yylval.label = strdup(yytext); return label; } "/*"([^\*]|\*[^/])*"*/" { /* NOP */ } ";"[^\n]* { /* NOP */ } ^#.* { /* NOP */ } [ \t]+ { /* NOP */ } [ \n]+ { /* NOP */ } . { printf("unknown character \'%s\'", yytext); yyerror("lex unknown character"); } %% /select>space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 11:13:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 11:13:41 -0800
commitca92e6c7e6329029d7188487a5c32e86ef471977 (patch)
tree704fb5c2ca533cdb569826522eed0dbbcf31f316 /include/acpi
parent0b75f821ec8be459dd4dec77be39595d989d77ac (diff)
parent4205e4786d0b9fc3b4fec7b1910cf645a0468307 (diff)
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP hotplug update from Thomas Gleixner: "This contains a trivial typo fix and an extension to the core code for dynamically allocating states in the prepare stage. The extension is necessary right now because we need a proper way to unbreak LTTNG, which iscurrently non functional due to the removal of the notifiers. Surely it's out of tree, but it's widely used by distros. The simple solution would have been to reserve a state for LTTNG, but I'm not fond about unused crap in the kernel and the dynamic range, which we admittedly should have done right away, allows us to remove quite some of the hardcoded states, i.e. those which have no ordering requirements. So doing the right thing now is better than having an smaller intermediate solution which needs to be reworked anyway" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Provide dynamic range for prepare stage perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug
Diffstat (limited to 'include/acpi')