util: Move general qemu_getauxval to util/getauxval.c

[qemu.git] / include / qemu / osdep.h

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 87d3b9cfa8f720d247f57eaed1de0096aad01204..1565404f7e7502cd40434a2960965bfa7c214358 100644 (file)
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -1,14 +1,22 @@
 #ifndef QEMU_OSDEP_H
 #define QEMU_OSDEP_H
 
+#include "config-host.h"
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdbool.h>
-#ifdef __OpenBSD__
 #include <sys/types.h>
+#ifdef __OpenBSD__
 #include <sys/signal.h>
 #endif
 
+#ifndef _WIN32
+#include <sys/wait.h>
+#else
+#define WIFEXITED(x)   1
+#define WEXITSTATUS(x) (x)
+#endif
+
 #include <sys/time.h>
 
 #if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10
@@ -60,6 +68,10 @@ typedef signed int              int_fast16_t;
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 
+#ifndef ROUND_UP
+#define ROUND_UP(n,d) (((n) + (d) - 1) & -(d))
+#endif
+
 #ifndef DIV_ROUND_UP
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 #endif
@@ -83,9 +95,11 @@ typedef signed int              int_fast16_t;
 #define qemu_printf printf
 
 int qemu_daemon(int nochdir, int noclose);
+void *qemu_try_memalign(size_t alignment, size_t size);
 void *qemu_memalign(size_t alignment, size_t size);
-void *qemu_vmalloc(size_t size);
+void *qemu_anon_ram_alloc(size_t size);
 void qemu_vfree(void *ptr);
+void qemu_anon_ram_free(void *ptr, size_t size);
 
 #define QEMU_MADV_INVALID -1
 
@@ -103,6 +117,16 @@ void qemu_vfree(void *ptr);
 #else
 #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
 #endif
+#ifdef MADV_UNMERGEABLE
+#define QEMU_MADV_UNMERGEABLE MADV_UNMERGEABLE
+#else
+#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
+#endif
+#ifdef MADV_DODUMP
+#define QEMU_MADV_DODUMP MADV_DODUMP
+#else
+#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
+#endif
 #ifdef MADV_DONTDUMP
 #define QEMU_MADV_DONTDUMP MADV_DONTDUMP
 #else
@@ -120,6 +144,8 @@ void qemu_vfree(void *ptr);
 #define QEMU_MADV_DONTNEED  POSIX_MADV_DONTNEED
 #define QEMU_MADV_DONTFORK  QEMU_MADV_INVALID
 #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
+#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
+#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
 #define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
 #define QEMU_MADV_HUGEPAGE  QEMU_MADV_INVALID
 
@@ -129,6 +155,8 @@ void qemu_vfree(void *ptr);
 #define QEMU_MADV_DONTNEED  QEMU_MADV_INVALID
 #define QEMU_MADV_DONTFORK  QEMU_MADV_INVALID
 #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
+#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
+#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
 #define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
 #define QEMU_MADV_HUGEPAGE  QEMU_MADV_INVALID
 
@@ -150,6 +178,22 @@ int qemu_close(int fd);
 int qemu_create_pidfile(const char *filename);
 int qemu_get_thread_id(void);
 
+#ifndef CONFIG_IOVEC
+struct iovec {
+    void *iov_base;
+    size_t iov_len;
+};
+/*
+ * Use the same value as Linux for now.
+ */
+#define IOV_MAX 1024
+
+ssize_t readv(int fd, const struct iovec *iov, int iov_cnt);
+ssize_t writev(int fd, const struct iovec *iov, int iov_cnt);
+#else
+#include <sys/uio.h>
+#endif
+
 #ifdef _WIN32
 static inline void qemu_timersub(const struct timeval *val1,
                                  const struct timeval *val2,
@@ -175,4 +219,37 @@ const char *qemu_get_version(void);
 void fips_set_state(bool requested);
 bool fips_get_state(void);
 
+/* Return a dynamically allocated pathname denoting a file or directory that is
+ * appropriate for storing local state.
+ *
+ * @relative_pathname need not start with a directory separator; one will be
+ * added automatically.
+ *
+ * The caller is responsible for releasing the value returned with g_free()
+ * after use.
+ */
+char *qemu_get_local_state_pathname(const char *relative_pathname);
+
+/* Find program directory, and save it for later usage with
+ * qemu_get_exec_dir().
+ * Try OS specific API first, if not working, parse from argv0. */
+void qemu_init_exec_dir(const char *argv0);
+
+/* Get the saved exec dir.
+ * Caller needs to release the returned string by g_free() */
+char *qemu_get_exec_dir(void);
+
+/**
+ * qemu_getauxval:
+ * @type: the auxiliary vector key to lookup
+ *
+ * Search the auxiliary vector for @type, returning the value
+ * or 0 if @type is not present.
+ */
+unsigned long qemu_getauxval(unsigned long type);
+
+void qemu_set_tty_echo(int fd, bool echo);
+
+void os_mem_prealloc(int fd, char *area, size_t sz);
+
 #endif