#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__)
#define WORDS_ALIGNED
#include <assert.h>
#include <signal.h>
#include "glib-compat.h"
+#include "qemu/option.h"
#ifdef _WIN32
#include "sysemu/os-win32.h"
# error Unknown pointer size
#endif
-typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
- GCC_FMT_ATTR(2, 3);
-
#ifdef _WIN32
#define fsync _commit
#if !defined(lseek)
}
#endif
+void cpu_ticks_init(void);
+
/* icount */
-void configure_icount(const char *option);
+void configure_icount(QemuOpts *opts, Error **errp);
extern int use_icount;
+extern int icount_align_option;
+/* drift information for info jit command */
+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"
return !strcmp(s, "?") || !strcmp(s, "help");
}
-/* cutils.c */
+/* 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);
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);
ssize_t qemu_write_full(int fd, const void *buf, size_t count)
QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
- QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
- QEMU_WARN_UNUSED_RESULT;
#ifndef _WIN32
int qemu_pipe(int pipefd[2]);
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);
-void qemu_iovec_concat_iov(QEMUIOVector *dst,
- struct iovec *src_iov, unsigned int src_cnt,
- 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);
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 os_setup_early_signal_handling(void);
char *os_find_datadir(void);
void os_parse_cmd_args(int index, const char *optarg);
-void os_pidfile_error(void);
/* Convert a byte between binary and BCD. */
static inline uint8_t to_bcd(uint8_t val)
}
/* 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 {
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 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"
/*
#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
#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
projects / qemu.git / blobdiff