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authorStefan Hajnoczi <stefanha@redhat.com>2025-05-07 16:10:59 -0400
committerStefan Hajnoczi <stefanha@redhat.com>2025-05-07 16:10:59 -0400
commitc5f122fdcc280a82e7c5f31de890f985aa7ba773 (patch)
tree42152238b23d212a5bc1ac75397eb6dba035d791 /include/system/os-wasm.h
parent57b6f8d07f1478375f85a4593a207e936c63ff59 (diff)
parente6b9b79c3076777b791f72ebdbc9d37ad8005fe9 (diff)
downloadfocaccia-qemu-c5f122fdcc280a82e7c5f31de890f985aa7ba773.tar.gz
focaccia-qemu-c5f122fdcc280a82e7c5f31de890f985aa7ba773.zip
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* ci: enable RISC-V cross jobs
* rust: bump minimum supported version to 1.77
* rust: enable uninlined_format_args lint
* initial Emscripten support
* small fixes

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# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (30 commits)
  gitlab: Enable CI for wasm build
  tests: Add Dockerfile containing dependencies for Emscripten build
  meson: Add wasm build in build scripts
  util: Add coroutine backend for emscripten
  util: exclude mmap-alloc.c from compilation target on Emscripten
  Disable options unsupported on Emscripten
  include/qemu/osdep.h: Add Emscripten-specific OS dependencies
  block: Fix type conflict of the copy_file_range stub
  block: Add including of ioctl header for Emscripten build
  util/cacheflush.c: Update cache flushing mechanism for Emscripten
  include/glib-compat.h: Poison g_list_sort and g_slist_sort
  target/s390x: Fix type conflict of GLib function pointers
  target/ppc: Fix type conflict of GLib function pointers
  target/i386/cpu.c: Fix type conflict of GLib function pointers
  target/arm/helper.c: Fix type conflict of GLib function pointers
  docs: build-system: fix typo
  ci: run RISC-V cross jobs by default
  rust: clippy: enable uninlined_format_args lint
  target/i386/emulate: fix target_ulong format strings
  docs: rust: update for newer minimum supported version
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include/system/os-wasm.h')
-rw-r--r--include/system/os-wasm.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/include/system/os-wasm.h b/include/system/os-wasm.h
new file mode 100644
index 0000000000..3abb3aaa03
--- /dev/null
+++ b/include/system/os-wasm.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * posix specific declarations forked from os-posix.h, removing functions not
+ * working on Emscripten
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
+ *
+ * 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.
+ */
+
+#ifndef QEMU_OS_WASM_H
+#define QEMU_OS_WASM_H
+
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <sys/un.h>
+
+#ifdef CONFIG_SYSMACROS
+#include <sys/sysmacros.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void os_set_line_buffering(void);
+void os_setup_early_signal_handling(void);
+void os_set_proc_name(const char *s);
+void os_setup_signal_handling(void);
+void os_setup_limits(void);
+void os_setup_post(void);
+int os_mlock(bool on_fault);
+static inline int os_set_daemonize(bool d)
+{
+    return -1;
+};
+bool is_daemonized(void);
+static inline void os_daemonize(void) {}
+
+/**
+ * qemu_alloc_stack:
+ * @sz: pointer to a size_t holding the requested usable stack size
+ *
+ * Allocate memory that can be used as a stack, for instance for
+ * coroutines. If the memory cannot be allocated, this function
+ * will abort (like g_malloc()). This function also inserts an
+ * additional guard page to catch a potential stack overflow.
+ * Note that the memory required for the guard page and alignment
+ * and minimal stack size restrictions will increase the value of sz.
+ *
+ * The allocated stack must be freed with qemu_free_stack().
+ *
+ * Returns: pointer to (the lowest address of) the stack memory.
+ */
+void *qemu_alloc_stack(size_t *sz);
+
+/**
+ * qemu_free_stack:
+ * @stack: stack to free
+ * @sz: size of stack in bytes
+ *
+ * Free a stack allocated via qemu_alloc_stack(). Note that sz must
+ * be exactly the adjusted stack size returned by qemu_alloc_stack.
+ */
+void qemu_free_stack(void *stack, size_t sz);
+
+/* POSIX and Mingw32 differ in the name of the stdio lock functions.  */
+
+static inline void qemu_flockfile(FILE *f)
+{
+    flockfile(f);
+}
+
+static inline void qemu_funlockfile(FILE *f)
+{
+    funlockfile(f);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif