diff options
Diffstat (limited to 'qemu/include/qemu-common.h')
| -rw-r--r-- | qemu/include/qemu-common.h | 441 |
1 files changed, 6 insertions, 435 deletions
diff --git a/qemu/include/qemu-common.h b/qemu/include/qemu-common.h index fb3da6ca2..163bcbb86 100644 --- a/qemu/include/qemu-common.h +++ b/qemu/include/qemu-common.h @@ -12,9 +12,6 @@ #ifndef QEMU_COMMON_H #define QEMU_COMMON_H -#include "qemu/compiler.h" -#include "config-host.h" -#include "qemu/typedefs.h" #include "qemu/fprintf-fn.h" #if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__) @@ -23,85 +20,8 @@ #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) -/* we put basic includes here to avoid repeating them in device drivers */ -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> -#include <stdbool.h> -#include <string.h> -#include <strings.h> -#include <inttypes.h> -#include <limits.h> -#include <time.h> -#include <ctype.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <assert.h> -#include <signal.h> -#include "glib-compat.h" #include "qemu/option.h" - -#ifdef _WIN32 -#include "sysemu/os-win32.h" -#endif - -#ifdef CONFIG_POSIX -#include "sysemu/os-posix.h" -#endif - -#ifndef O_LARGEFILE -#define O_LARGEFILE 0 -#endif -#ifndef O_BINARY -#define O_BINARY 0 -#endif -#ifndef MAP_ANONYMOUS -#define MAP_ANONYMOUS MAP_ANON -#endif -#ifndef ENOMEDIUM -#define ENOMEDIUM ENODEV -#endif -#if !defined(ENOTSUP) -#define ENOTSUP 4096 -#endif -#if !defined(ECANCELED) -#define ECANCELED 4097 -#endif -#if !defined(EMEDIUMTYPE) -#define EMEDIUMTYPE 4098 -#endif -#ifndef TIME_MAX -#define TIME_MAX LONG_MAX -#endif - -/* HOST_LONG_BITS is the size of a native pointer in bits. */ -#if UINTPTR_MAX == UINT32_MAX -# define HOST_LONG_BITS 32 -#elif UINTPTR_MAX == UINT64_MAX -# define HOST_LONG_BITS 64 -#else -# error Unknown pointer size -#endif - -#ifdef _WIN32 -#define fsync _commit -#if !defined(lseek) -# define lseek _lseeki64 -#endif -int qemu_ftruncate64(int, int64_t); -#if !defined(ftruncate) -# define ftruncate qemu_ftruncate64 -#endif - -static inline char *realpath(const char *path, char *resolved_path) -{ - _fullpath(resolved_path, path, _MAX_PATH); - return resolved_path; -} -#endif +#include "qemu/host-utils.h" void cpu_ticks_init(void); @@ -114,7 +34,6 @@ extern int64_t max_delay; extern int64_t max_advance; void dump_drift_info(FILE *f, fprintf_function cpu_fprintf); -#include "qemu/osdep.h" #include "qemu/bswap.h" /* FIXME: Remove NEED_CPU_H. */ @@ -130,189 +49,6 @@ int qemu_main(int argc, char **argv, char **envp); void qemu_get_timedate(struct tm *tm, int offset); int qemu_timedate_diff(struct tm *tm); -/** - * is_help_option: - * @s: string to test - * - * Check whether @s is one of the standard strings which indicate - * that the user is asking for a list of the valid values for a - * command option like -cpu or -M. The current accepted strings - * are 'help' and '?'. '?' is deprecated (it is a shell wildcard - * which makes it annoying to use in a reliable way) but provided - * for backwards compatibility. - * - * Returns: true if @s is a request for a list. - */ -static inline bool is_help_option(const char *s) -{ - return !strcmp(s, "?") || !strcmp(s, "help"); -} - -/* util/cutils.c */ -/** - * pstrcpy: - * @buf: buffer to copy string into - * @buf_size: size of @buf in bytes - * @str: string to copy - * - * Copy @str into @buf, including the trailing NUL, but do not - * write more than @buf_size bytes. The resulting buffer is - * always NUL terminated (even if the source string was too long). - * If @buf_size is zero or negative then no bytes are copied. - * - * This function is similar to strncpy(), but avoids two of that - * function's problems: - * * if @str fits in the buffer, pstrcpy() does not zero-fill the - * remaining space at the end of @buf - * * if @str is too long, pstrcpy() will copy the first @buf_size-1 - * bytes and then add a NUL - */ -void pstrcpy(char *buf, int buf_size, const char *str); -/** - * strpadcpy: - * @buf: buffer to copy string into - * @buf_size: size of @buf in bytes - * @str: string to copy - * @pad: character to pad the remainder of @buf with - * - * Copy @str into @buf (but *not* its trailing NUL!), and then pad the - * rest of the buffer with the @pad character. If @str is too large - * for the buffer then it is truncated, so that @buf contains the - * first @buf_size characters of @str, with no terminator. - */ -void strpadcpy(char *buf, int buf_size, const char *str, char pad); -/** - * pstrcat: - * @buf: buffer containing existing string - * @buf_size: size of @buf in bytes - * @s: string to concatenate to @buf - * - * Append a copy of @s to the string already in @buf, but do not - * allow the buffer to overflow. If the existing contents of @buf - * plus @str would total more than @buf_size bytes, then write - * as much of @str as will fit followed by a NUL terminator. - * - * @buf must already contain a NUL-terminated string, or the - * behaviour is undefined. - * - * Returns: @buf. - */ -char *pstrcat(char *buf, int buf_size, const char *s); -/** - * strstart: - * @str: string to test - * @val: prefix string to look for - * @ptr: NULL, or pointer to be written to indicate start of - * the remainder of the string - * - * Test whether @str starts with the prefix @val. - * If it does (including the degenerate case where @str and @val - * are equal) then return true. If @ptr is not NULL then a - * pointer to the first character following the prefix is written - * to it. If @val is not a prefix of @str then return false (and - * @ptr is not written to). - * - * Returns: true if @str starts with prefix @val, false otherwise. - */ -int strstart(const char *str, const char *val, const char **ptr); -/** - * stristart: - * @str: string to test - * @val: prefix string to look for - * @ptr: NULL, or pointer to be written to indicate start of - * the remainder of the string - * - * Test whether @str starts with the case-insensitive prefix @val. - * This function behaves identically to strstart(), except that the - * comparison is made after calling qemu_toupper() on each pair of - * characters. - * - * Returns: true if @str starts with case-insensitive prefix @val, - * false otherwise. - */ -int stristart(const char *str, const char *val, const char **ptr); -/** - * qemu_strnlen: - * @s: string - * @max_len: maximum number of bytes in @s to scan - * - * Return the length of the string @s, like strlen(), but do not - * examine more than @max_len bytes of the memory pointed to by @s. - * If no NUL terminator is found within @max_len bytes, then return - * @max_len instead. - * - * This function has the same behaviour as the POSIX strnlen() - * function. - * - * Returns: length of @s in bytes, or @max_len, whichever is smaller. - */ -int qemu_strnlen(const char *s, int max_len); -/** - * qemu_strsep: - * @input: pointer to string to parse - * @delim: string containing delimiter characters to search for - * - * Locate the first occurrence of any character in @delim within - * the string referenced by @input, and replace it with a NUL. - * The location of the next character after the delimiter character - * is stored into @input. - * If the end of the string was reached without finding a delimiter - * character, then NULL is stored into @input. - * If @input points to a NULL pointer on entry, return NULL. - * The return value is always the original value of *@input (and - * so now points to a NUL-terminated string corresponding to the - * part of the input up to the first delimiter). - * - * This function has the same behaviour as the BSD strsep() function. - * - * Returns: the pointer originally in @input. - */ -char *qemu_strsep(char **input, const char *delim); -time_t mktimegm(struct tm *tm); -int qemu_fls(int i); -int qemu_fdatasync(int fd); -int fcntl_setfl(int fd, int flag); -int qemu_parse_fd(const char *param); - -int parse_uint(const char *s, unsigned long long *value, char **endptr, - int base); -int parse_uint_full(const char *s, unsigned long long *value, int base); - -/* - * strtosz() suffixes used to specify the default treatment of an - * argument passed to strtosz() without an explicit suffix. - * These should be defined using upper case characters in the range - * A-Z, as strtosz() will use qemu_toupper() on the given argument - * prior to comparison. - */ -#define STRTOSZ_DEFSUFFIX_EB 'E' -#define STRTOSZ_DEFSUFFIX_PB 'P' -#define STRTOSZ_DEFSUFFIX_TB 'T' -#define STRTOSZ_DEFSUFFIX_GB 'G' -#define STRTOSZ_DEFSUFFIX_MB 'M' -#define STRTOSZ_DEFSUFFIX_KB 'K' -#define STRTOSZ_DEFSUFFIX_B 'B' -int64_t strtosz(const char *nptr, char **end); -int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); -int64_t strtosz_suffix_unit(const char *nptr, char **end, - const char default_suffix, int64_t unit); -#define K_BYTE (1ULL << 10) -#define M_BYTE (1ULL << 20) -#define G_BYTE (1ULL << 30) -#define T_BYTE (1ULL << 40) -#define P_BYTE (1ULL << 50) -#define E_BYTE (1ULL << 60) - -/* used to print char* safely */ -#define STR_OR_NULL(str) ((str) ? (str) : "null") - -/* id.c */ -bool id_wellformed(const char *id); - -/* path.c */ -void init_paths(const char *prefix); -const char *path(const char *pathname); - #define qemu_isalnum(c) isalnum((unsigned char)(c)) #define qemu_isalpha(c) isalpha((unsigned char)(c)) #define qemu_iscntrl(c) iscntrl((unsigned char)(c)) @@ -359,37 +95,11 @@ int qemu_openpty_raw(int *aslave, char *pty_name); sendto(sockfd, buf, len, flags, destaddr, addrlen) #endif -/* Error handling. */ - -void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2); - -struct ParallelIOArg { - void *buffer; - int count; -}; - -typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size); - -typedef uint64_t pcibus_t; - -typedef struct PCIHostDeviceAddress { - unsigned int domain; - unsigned int bus; - unsigned int slot; - unsigned int function; -} PCIHostDeviceAddress; - void tcg_exec_init(unsigned long tb_size); bool tcg_enabled(void); void cpu_exec_init_all(void); -/* CPU save/load. */ -#ifdef CPU_SAVE_VERSION -void cpu_save(QEMUFile *f, void *opaque); -int cpu_load(QEMUFile *f, void *opaque, int version_id); -#endif - /* Unblock cpu */ void qemu_cpu_kick_self(void); @@ -426,36 +136,6 @@ ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send); #define qemu_co_send(sockfd, buf, bytes) \ qemu_co_send_recv(sockfd, buf, bytes, true) -typedef struct QEMUIOVector { - struct iovec *iov; - int niov; - int nalloc; - size_t size; -} QEMUIOVector; - -void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint); -void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); -void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); -void qemu_iovec_concat(QEMUIOVector *dst, - QEMUIOVector *src, size_t soffset, size_t sbytes); -size_t qemu_iovec_concat_iov(QEMUIOVector *dst, - struct iovec *src_iov, unsigned int src_cnt, - size_t soffset, size_t sbytes); -bool qemu_iovec_is_zero(QEMUIOVector *qiov); -void qemu_iovec_destroy(QEMUIOVector *qiov); -void qemu_iovec_reset(QEMUIOVector *qiov); -size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset, - void *buf, size_t bytes); -size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset, - const void *buf, size_t bytes); -size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset, - int fillc, size_t bytes); -ssize_t qemu_iovec_compare(QEMUIOVector *a, QEMUIOVector *b); -void qemu_iovec_clone(QEMUIOVector *dest, const QEMUIOVector *src, void *buf); -void qemu_iovec_discard_back(QEMUIOVector *qiov, size_t bytes); - -bool buffer_is_zero(const void *buf, size_t len); - void qemu_progress_init(int enabled, float min_skip); void qemu_progress_end(void); void qemu_progress_print(float delta, int max); @@ -470,133 +150,24 @@ void os_setup_early_signal_handling(void); char *os_find_datadir(void); void os_parse_cmd_args(int index, const char *optarg); -/* Convert a byte between binary and BCD. */ -static inline uint8_t to_bcd(uint8_t val) -{ - return ((val / 10) << 4) | (val % 10); -} - -static inline uint8_t from_bcd(uint8_t val) -{ - return ((val >> 4) * 10) + (val & 0x0f); -} - -/* compute with 96 bit intermediate result: (a*b)/c */ -#ifdef CONFIG_INT128 -static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) -{ - return (__int128_t)a * b / c; -} -#else -static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) -{ - union { - uint64_t ll; - struct { -#ifdef HOST_WORDS_BIGENDIAN - uint32_t high, low; -#else - uint32_t low, high; -#endif - } l; - } u, res; - uint64_t rl, rh; - - u.ll = a; - rl = (uint64_t)u.l.low * (uint64_t)b; - rh = (uint64_t)u.l.high * (uint64_t)b; - rh += (rl >> 32); - res.l.high = rh / c; - res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; - return res.ll; -} -#endif - -/* Round number down to multiple */ -#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m)) - -/* Round number up to multiple */ -#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m)) - -static inline bool is_power_of_2(uint64_t value) -{ - if (!value) { - return 0; - } - - return !(value & (value - 1)); -} - -/* round down to the nearest power of 2*/ -int64_t pow2floor(int64_t value); - -/* round up to the nearest power of 2 (0 if overflow) */ -uint64_t pow2ceil(uint64_t value); - #include "qemu/module.h" /* - * Implementation of ULEB128 (http://en.wikipedia.org/wiki/LEB128) - * Input is limited to 14-bit numbers - */ - -int uleb128_encode_small(uint8_t *out, uint32_t n); -int uleb128_decode_small(const uint8_t *in, uint32_t *n); - -/* unicode.c */ -int mod_utf8_codepoint(const char *s, size_t n, char **end); - -/* * Hexdump a buffer to a file. An optional string prefix is added to every line */ void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size); -/* vector definitions */ -#ifdef __ALTIVEC__ -#include <altivec.h> -/* The altivec.h header says we're allowed to undef these for - * C++ compatibility. Here we don't care about C++, but we - * undef them anyway to avoid namespace pollution. - */ -#undef vector -#undef pixel -#undef bool -#define VECTYPE __vector unsigned char -#define SPLAT(p) vec_splat(vec_ld(0, p), 0) -#define ALL_EQ(v1, v2) vec_all_eq(v1, v2) -#define VEC_OR(v1, v2) ((v1) | (v2)) -/* altivec.h may redefine the bool macro as vector type. - * Reset it to POSIX semantics. */ -#define bool _Bool -#elif defined __SSE2__ -#include <emmintrin.h> -#define VECTYPE __m128i -#define SPLAT(p) _mm_set1_epi8(*(p)) -#define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF) -#define VEC_OR(v1, v2) (_mm_or_si128(v1, v2)) -#else -#define VECTYPE unsigned long -#define SPLAT(p) (*(p) * (~0UL / 255)) -#define ALL_EQ(v1, v2) ((v1) == (v2)) -#define VEC_OR(v1, v2) ((v1) | (v2)) -#endif - -#define BUFFER_FIND_NONZERO_OFFSET_UNROLL_FACTOR 8 -static inline bool -can_use_buffer_find_nonzero_offset(const void *buf, size_t len) -{ - return (len % (BUFFER_FIND_NONZERO_OFFSET_UNROLL_FACTOR - * sizeof(VECTYPE)) == 0 - && ((uintptr_t) buf) % sizeof(VECTYPE) == 0); -} -size_t buffer_find_nonzero_offset(const void *buf, size_t len); - /* * helper to parse debug environment variables */ int parse_debug_env(const char *name, int max, int initial); const char *qemu_ether_ntoa(const MACAddr *mac); +void page_size_init(void); + +/* returns non-zero if dump is in progress, otherwise zero is + * returned. */ +bool dump_in_progress(void); #endif |