emscripten exposes copy_file_range declaration but doesn't provide the
implementation in the final link. Define the emscripten-specific stub
function to avoid type conflict with the emscripten's header.
Signed-off-by: Kohei Tokunaga <ktokunaga.m...@gmail.com>
---
block/file-posix.c | 6 ++++++
stubs/emscripten.c | 13 +++++++++++++
2 files changed, 19 insertions(+)
create mode 100644 stubs/emscripten.c
diff --git a/block/file-posix.c b/block/file-posix.c
index 56d1972d15..22e0ed5069 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -110,6 +110,10 @@
#include <sys/diskslice.h>
#endif
+#ifdef EMSCRIPTEN
+#include <sys/ioctl.h>
+#endif
+
/* OS X does not have O_DSYNC */
#ifndef O_DSYNC
#ifdef O_SYNC
@@ -2010,6 +2014,7 @@ static int handle_aiocb_write_zeroes_unmap(void *opaque)
return handle_aiocb_write_zeroes(aiocb);
}
+#ifndef EMSCRIPTEN
#ifndef HAVE_COPY_FILE_RANGE
static off_t copy_file_range(int in_fd, off_t *in_off, int out_fd,
off_t *out_off, size_t len, unsigned int flags)
@@ -2023,6 +2028,7 @@ static off_t copy_file_range(int in_fd, off_t *in_off,
int out_fd,
#endif
}
#endif
+#endif
/*
* parse_zone - Fill a zone descriptor
diff --git a/stubs/emscripten.c b/stubs/emscripten.c
new file mode 100644
index 0000000000..2157d6349b
--- /dev/null
+++ b/stubs/emscripten.c
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#include "qemu/osdep.h"
+/*
+ * emscripten exposes copy_file_range declaration but doesn't provide the
+ * implementation in the final link. Define the stub here but avoid type
+ * conflict with the emscripten's header.
+ */
+ssize_t copy_file_range(int in_fd, off_t *in_off, int out_fd,
+ off_t *out_off, size_t len, unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
--
2.25.1
