X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-filter-specialize.c;h=318d051abc1bd2871683bd0b1bf03864b56be774;hb=7299e758b109db074589f7879ae631b27c25dc05;hp=978ee1a640bc9bdcc60ddab1591a0a94fadbe2b3;hpb=241ae9a8fb62c3ce467d244e280062c24e73eb7a;p=lttng-modules.git diff --git a/lttng-filter-specialize.c b/lttng-filter-specialize.c index 978ee1a6..318d051a 100644 --- a/lttng-filter-specialize.c +++ b/lttng-filter-specialize.c @@ -3,21 +3,25 @@ * * LTTng modules filter code specializer. * - * Copyright (C) 2010-2014 Mathieu Desnoyers + * Copyright (C) 2010-2016 Mathieu Desnoyers * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; only - * version 2.1 of the License. + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. */ #include @@ -73,7 +77,13 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) goto end; case REG_STRING: - insn->op = FILTER_OP_EQ_STRING; + if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) + insn->op = FILTER_OP_EQ_STAR_GLOB_STRING; + else + insn->op = FILTER_OP_EQ_STRING; + break; + case REG_STAR_GLOB_STRING: + insn->op = FILTER_OP_EQ_STAR_GLOB_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) @@ -109,7 +119,13 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) goto end; case REG_STRING: - insn->op = FILTER_OP_NE_STRING; + if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) + insn->op = FILTER_OP_NE_STAR_GLOB_STRING; + else + insn->op = FILTER_OP_NE_STRING; + break; + case REG_STAR_GLOB_STRING: + insn->op = FILTER_OP_NE_STAR_GLOB_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) @@ -144,6 +160,10 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) ret = -EINVAL; goto end; + case REG_STAR_GLOB_STRING: + printk(KERN_WARNING "invalid register type for > binary operator\n"); + ret = -EINVAL; + goto end; case REG_STRING: insn->op = FILTER_OP_GT_STRING; break; @@ -180,6 +200,10 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) ret = -EINVAL; goto end; + case REG_STAR_GLOB_STRING: + printk(KERN_WARNING "invalid register type for < binary operator\n"); + ret = -EINVAL; + goto end; case REG_STRING: insn->op = FILTER_OP_LT_STRING; break; @@ -216,6 +240,10 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) ret = -EINVAL; goto end; + case REG_STAR_GLOB_STRING: + printk(KERN_WARNING "invalid register type for >= binary operator\n"); + ret = -EINVAL; + goto end; case REG_STRING: insn->op = FILTER_OP_GE_STRING; break; @@ -251,6 +279,10 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) ret = -EINVAL; goto end; + case REG_STAR_GLOB_STRING: + printk(KERN_WARNING "invalid register type for <= binary operator\n"); + ret = -EINVAL; + goto end; case REG_STRING: insn->op = FILTER_OP_LE_STRING; break; @@ -278,6 +310,8 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) case FILTER_OP_LT_STRING: case FILTER_OP_GE_STRING: case FILTER_OP_LE_STRING: + case FILTER_OP_EQ_STAR_GLOB_STRING: + case FILTER_OP_NE_STAR_GLOB_STRING: case FILTER_OP_EQ_S64: case FILTER_OP_NE_S64: case FILTER_OP_GT_S64: @@ -471,6 +505,19 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) break; } + case FILTER_OP_LOAD_STAR_GLOB_STRING: + { + struct load_op *insn = (struct load_op *) pc; + + if (vstack_push(stack)) { + ret = -EINVAL; + goto end; + } + vstack_ax(stack)->type = REG_STAR_GLOB_STRING; + next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; + break; + } + case FILTER_OP_LOAD_S64: { if (vstack_push(stack)) { @@ -507,6 +554,7 @@ int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) goto end; case REG_STRING: + case REG_STAR_GLOB_STRING: printk(KERN_WARNING "Cast op can only be applied to numeric or floating point registers\n"); ret = -EINVAL; goto end;