84a5a80148
* Chardev fix from Marc-André * config.status tweak from David * Header file tweaks from Markus, myself and Veronia (Outreachy candidate) * get_ticks_per_sec() removal from Rutuja (Outreachy candidate) * Coverity fix from myself * PKE implementation from myself, based on rth's XSAVE support -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJW9ErPAAoJEL/70l94x66DJfEH/A/QkMpAhrgNdyVsahzsGrzE wx5gHFIc1nBYxyr62w4apUb5jPB7zaXu0LA7EAWDeAe0pyP8hZzLT9kJyOEDsuJu zwKN2QeLSNMtPbnbKN0I/YQ2za2xX1V5ruhSeOJoVslUI214hgnAURaGshhQNzuZ 2CluDT9KgL5cQifAnKs5kJrwhIYShYNQB+1eDC/7wk28dd/EH+sPALIoF+rqrSmt Zu4Mdqd+9Ns+oKOjA6br9ULq/Hzg0aDfY82J+XLVVqfF3PXQe8rTDmuMf/7jTn+M Un7ZOcei9oZF2/9vfAfKQpDCcgD9HvOUSbgqV/ubmkPPmN/LNJzeKj0fBhrRN+Y= =K12D -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging * Log filtering from Alex and Peter * Chardev fix from Marc-André * config.status tweak from David * Header file tweaks from Markus, myself and Veronia (Outreachy candidate) * get_ticks_per_sec() removal from Rutuja (Outreachy candidate) * Coverity fix from myself * PKE implementation from myself, based on rth's XSAVE support # gpg: Signature made Thu 24 Mar 2016 20:15:11 GMT using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: (28 commits) target-i386: implement PKE for TCG config.status: Pass extra parameters char: translate from QIOChannel error to errno exec: fix error handling in file_ram_alloc cputlb: modernise the debug support qemu-log: support simple pid substitution for logs target-arm: dfilter support for in_asm qemu-log: dfilter-ise exec, out_asm, op and opt_op qemu-log: new option -dfilter to limit output qemu-log: Improve the "exec" TB execution logging qemu-log: Avoid function call for disabled qemu_log_mask logging qemu-log: correct help text for -d cpu tcg: pass down TranslationBlock to tcg_code_gen util: move declarations out of qemu-common.h Replaced get_tick_per_sec() by NANOSECONDS_PER_SECOND hw: explicitly include qemu-common.h and cpu.h include/crypto: Include qapi-types.h or qemu/bswap.h instead of qemu-common.h isa: Move DMA_transfer_handler from qemu-common.h to hw/isa/isa.h Move ParallelIOArg from qemu-common.h to sysemu/char.h Move QEMU_ALIGN_*() from qemu-common.h to qemu/osdep.h ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Conflicts: scripts/clean-includes
361 lines
9.2 KiB
C
361 lines
9.2 KiB
C
/*
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* OS includes and handling of OS dependencies
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*
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* This header exists to pull in some common system headers that
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* most code in QEMU will want, and to fix up some possible issues with
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* it (missing defines, Windows weirdness, and so on).
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*
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* To avoid getting into possible circular include dependencies, this
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* file should not include any other QEMU headers, with the exceptions
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* of config-host.h, config-target.h, qemu/compiler.h,
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* sysemu/os-posix.h, sysemu/os-win32.h, glib-compat.h and
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* qemu/typedefs.h, all of which are doing a similar job to this file
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* and are under similar constraints.
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*
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* This header also contains prototypes for functions defined in
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* os-*.c and util/oslib-*.c; those would probably be better split
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* out into separate header files.
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*
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* In an ideal world this header would contain only:
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* (1) things which everybody needs
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* (2) things without which code would work on most platforms but
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* fail to compile or misbehave on a minority of host OSes
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_OSDEP_H
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#define QEMU_OSDEP_H
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#include "config-host.h"
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#ifdef NEED_CPU_H
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#include "config-target.h"
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#endif
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#include "qemu/compiler.h"
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/* Older versions of C++ don't get definitions of various macros from
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* stdlib.h unless we define these macros before first inclusion of
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* that system header.
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*/
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#ifndef __STDC_CONSTANT_MACROS
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#define __STDC_CONSTANT_MACROS
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#endif
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#ifndef __STDC_LIMIT_MACROS
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#define __STDC_LIMIT_MACROS
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#endif
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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/* The following block of code temporarily renames the daemon() function so the
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* compiler does not see the warning associated with it in stdlib.h on OSX
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*/
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#ifdef __APPLE__
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#define daemon qemu_fake_daemon_function
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#include <stdlib.h>
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#undef daemon
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extern int daemon(int, int);
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#endif
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <inttypes.h>
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#include <limits.h>
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/* Put unistd.h before time.h as that triggers localtime_r/gmtime_r
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* function availability on recentish Mingw-w64 platforms. */
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#include <unistd.h>
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#include <time.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <assert.h>
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/* setjmp must be declared before sysemu/os-win32.h
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* because it is redefined there. */
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#include <setjmp.h>
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#include <signal.h>
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#ifdef __OpenBSD__
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#include <sys/signal.h>
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#endif
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#ifndef _WIN32
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#include <sys/wait.h>
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#else
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#define WIFEXITED(x) 1
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#define WEXITSTATUS(x) (x)
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#endif
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#ifdef _WIN32
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#include "sysemu/os-win32.h"
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#endif
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#ifdef CONFIG_POSIX
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#include "sysemu/os-posix.h"
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#endif
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#include "glib-compat.h"
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#include "qemu/typedefs.h"
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#ifndef O_LARGEFILE
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#define O_LARGEFILE 0
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#ifndef MAP_ANONYMOUS
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#define MAP_ANONYMOUS MAP_ANON
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#endif
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#ifndef ENOMEDIUM
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#define ENOMEDIUM ENODEV
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#endif
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#if !defined(ENOTSUP)
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#define ENOTSUP 4096
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#endif
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#if !defined(ECANCELED)
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#define ECANCELED 4097
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#endif
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#if !defined(EMEDIUMTYPE)
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#define EMEDIUMTYPE 4098
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#endif
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#ifndef TIME_MAX
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#define TIME_MAX LONG_MAX
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#endif
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/* HOST_LONG_BITS is the size of a native pointer in bits. */
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#if UINTPTR_MAX == UINT32_MAX
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# define HOST_LONG_BITS 32
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#elif UINTPTR_MAX == UINT64_MAX
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# define HOST_LONG_BITS 64
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#else
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# error Unknown pointer size
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#endif
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#ifndef MIN
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef MAX
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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/* Minimum function that returns zero only iff both values are zero.
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* Intended for use with unsigned values only. */
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#ifndef MIN_NON_ZERO
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#define MIN_NON_ZERO(a, b) (((a) != 0 && (a) < (b)) ? (a) : (b))
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#endif
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/* Round number down to multiple */
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#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
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/* Round number up to multiple */
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#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
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#ifndef ROUND_UP
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#define ROUND_UP(n,d) (((n) + (d) - 1) & -(d))
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#endif
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#ifndef DIV_ROUND_UP
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#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
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#endif
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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int qemu_daemon(int nochdir, int noclose);
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void *qemu_try_memalign(size_t alignment, size_t size);
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void *qemu_memalign(size_t alignment, size_t size);
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void *qemu_anon_ram_alloc(size_t size, uint64_t *align);
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void qemu_vfree(void *ptr);
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void qemu_anon_ram_free(void *ptr, size_t size);
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#define QEMU_MADV_INVALID -1
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#if defined(CONFIG_MADVISE)
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#include <sys/mman.h>
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#define QEMU_MADV_WILLNEED MADV_WILLNEED
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#define QEMU_MADV_DONTNEED MADV_DONTNEED
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#ifdef MADV_DONTFORK
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#define QEMU_MADV_DONTFORK MADV_DONTFORK
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#else
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#endif
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#ifdef MADV_MERGEABLE
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#define QEMU_MADV_MERGEABLE MADV_MERGEABLE
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#else
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#endif
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#ifdef MADV_UNMERGEABLE
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#define QEMU_MADV_UNMERGEABLE MADV_UNMERGEABLE
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#else
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#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
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#endif
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#ifdef MADV_DODUMP
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#define QEMU_MADV_DODUMP MADV_DODUMP
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#else
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#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
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#endif
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#ifdef MADV_DONTDUMP
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#define QEMU_MADV_DONTDUMP MADV_DONTDUMP
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#else
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#endif
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#ifdef MADV_HUGEPAGE
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#define QEMU_MADV_HUGEPAGE MADV_HUGEPAGE
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#else
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#endif
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#ifdef MADV_NOHUGEPAGE
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#define QEMU_MADV_NOHUGEPAGE MADV_NOHUGEPAGE
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#else
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#define QEMU_MADV_NOHUGEPAGE QEMU_MADV_INVALID
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#endif
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#elif defined(CONFIG_POSIX_MADVISE)
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#define QEMU_MADV_WILLNEED POSIX_MADV_WILLNEED
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#define QEMU_MADV_DONTNEED POSIX_MADV_DONTNEED
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#define QEMU_MADV_NOHUGEPAGE QEMU_MADV_INVALID
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#else /* no-op */
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#define QEMU_MADV_WILLNEED QEMU_MADV_INVALID
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#define QEMU_MADV_DONTNEED QEMU_MADV_INVALID
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_UNMERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_DODUMP QEMU_MADV_INVALID
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#define QEMU_MADV_NOHUGEPAGE QEMU_MADV_INVALID
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#endif
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int qemu_madvise(void *addr, size_t len, int advice);
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int qemu_open(const char *name, int flags, ...);
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int qemu_close(int fd);
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#if defined(__HAIKU__) && defined(__i386__)
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#define FMT_pid "%ld"
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#elif defined(WIN64)
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#define FMT_pid "%" PRId64
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#else
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#define FMT_pid "%d"
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#endif
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int qemu_create_pidfile(const char *filename);
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int qemu_get_thread_id(void);
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#ifndef CONFIG_IOVEC
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struct iovec {
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void *iov_base;
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size_t iov_len;
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};
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/*
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* Use the same value as Linux for now.
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*/
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#define IOV_MAX 1024
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ssize_t readv(int fd, const struct iovec *iov, int iov_cnt);
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ssize_t writev(int fd, const struct iovec *iov, int iov_cnt);
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#else
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#include <sys/uio.h>
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#endif
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#ifdef _WIN32
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static inline void qemu_timersub(const struct timeval *val1,
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const struct timeval *val2,
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struct timeval *res)
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{
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res->tv_sec = val1->tv_sec - val2->tv_sec;
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if (val1->tv_usec < val2->tv_usec) {
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res->tv_sec--;
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res->tv_usec = val1->tv_usec - val2->tv_usec + 1000 * 1000;
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} else {
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res->tv_usec = val1->tv_usec - val2->tv_usec;
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}
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}
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#else
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#define qemu_timersub timersub
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#endif
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void qemu_set_cloexec(int fd);
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/* QEMU "hardware version" setting. Used to replace code that exposed
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* QEMU_VERSION to guests in the past and need to keep compatibilty.
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* Do not use qemu_hw_version() in new code.
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*/
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void qemu_set_hw_version(const char *);
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const char *qemu_hw_version(void);
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void fips_set_state(bool requested);
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bool fips_get_state(void);
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/* Return a dynamically allocated pathname denoting a file or directory that is
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* appropriate for storing local state.
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*
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* @relative_pathname need not start with a directory separator; one will be
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* added automatically.
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*
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* The caller is responsible for releasing the value returned with g_free()
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* after use.
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*/
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char *qemu_get_local_state_pathname(const char *relative_pathname);
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/* Find program directory, and save it for later usage with
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* qemu_get_exec_dir().
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* Try OS specific API first, if not working, parse from argv0. */
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void qemu_init_exec_dir(const char *argv0);
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/* Get the saved exec dir.
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* Caller needs to release the returned string by g_free() */
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char *qemu_get_exec_dir(void);
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/**
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* qemu_getauxval:
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* @type: the auxiliary vector key to lookup
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*
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* Search the auxiliary vector for @type, returning the value
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* or 0 if @type is not present.
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*/
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unsigned long qemu_getauxval(unsigned long type);
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void qemu_set_tty_echo(int fd, bool echo);
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void os_mem_prealloc(int fd, char *area, size_t sz);
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int qemu_read_password(char *buf, int buf_size);
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/**
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* qemu_fork:
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*
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* A version of fork that avoids signal handler race
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* conditions that can lead to child process getting
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* signals that are otherwise only expected by the
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* parent. It also resets all signal handlers to the
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* default settings.
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*
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* Returns 0 to child process, pid number to parent
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* or -1 on failure.
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*/
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pid_t qemu_fork(Error **errp);
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#endif
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