ref: a654b94db8a3574b7a774edfd77b8612c0b642cd
dir: /sys/src/9/xen/xen-public/gcov.h/
/****************************************************************************** * gcov.h * * Coverage structures exported by Xen. * Structure is different from Gcc one. * * 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: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * 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. * * Copyright (c) 2013, Citrix Systems R&D Ltd. */ #ifndef __XEN_PUBLIC_GCOV_H__ #define __XEN_PUBLIC_GCOV_H__ __XEN_PUBLIC_GCOV_H__ #define XENCOV_COUNTERS 5 #define XENCOV_TAG_BASE 0x58544300u #define XENCOV_TAG_FILE (XENCOV_TAG_BASE+0x46u) #define XENCOV_TAG_FUNC (XENCOV_TAG_BASE+0x66u) #define XENCOV_TAG_COUNTER(n) (XENCOV_TAG_BASE+0x30u+((n)&0xfu)) #define XENCOV_TAG_END (XENCOV_TAG_BASE+0x2eu) #define XENCOV_IS_TAG_COUNTER(n) \ ((n) >= XENCOV_TAG_COUNTER(0) && (n) < XENCOV_TAG_COUNTER(XENCOV_COUNTERS)) #define XENCOV_COUNTER_NUM(n) ((n)-XENCOV_TAG_COUNTER(0)) /* * The main structure for the blob is * BLOB := FILE.. END * FILE := TAG_FILE VERSION STAMP FILENAME COUNTERS FUNCTIONS * FILENAME := LEN characters * characters are padded to 32 bit * LEN := 32 bit value * COUNTERS := TAG_COUNTER(n) NUM COUNTER.. * NUM := 32 bit valie * COUNTER := 64 bit value * FUNCTIONS := TAG_FUNC NUM FUNCTION.. * FUNCTION := IDENT CHECKSUM NUM_COUNTERS * * All tagged structures are aligned to 8 bytes */ /** * File information * Prefixed with XENCOV_TAG_FILE and a string with filename * Aligned to 8 bytes */ struct xencov_file { uint32_t tag; /* XENCOV_TAG_FILE */ uint32_t version; uint32_t stamp; uint32_t fn_len; char filename[1]; }; /** * Counters information * Prefixed with XENCOV_TAG_COUNTER(n) where n is 0..(XENCOV_COUNTERS-1) * Aligned to 8 bytes */ struct xencov_counter { uint32_t tag; /* XENCOV_TAG_COUNTER(n) */ uint32_t num; uint64_t values[1]; }; /** * Information for each function * Number of counter is equal to the number of counter structures got before */ struct xencov_function { uint32_t ident; uint32_t checksum; uint32_t num_counters[1]; }; /** * Information for all functions * Aligned to 8 bytes */ struct xencov_functions { uint32_t tag; /* XENCOV_TAG_FUNC */ uint32_t num; struct xencov_function xencov_function[1]; }; /** * Terminator */ struct xencov_end { uint32_t tag; /* XENCOV_TAG_END */ }; #endif /* __XEN_PUBLIC_GCOV_H__ */