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* [newlib-cygwin] aarch64: support binary mode for opening files
@ 2021-05-26 14:21 Richard Earnshaw
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From: Richard Earnshaw @ 2021-05-26 14:21 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=2a3a03972b35377aef8d3d52d873ac3b8fcc512c
commit 2a3a03972b35377aef8d3d52d873ac3b8fcc512c
Author: Richard Earnshaw <rearnsha@arm.com>
Date: Wed May 26 15:17:11 2021 +0100
aarch64: support binary mode for opening files
Newlib for aarch64 uses libgloss for the backend. One common libgloss
implementation is the 'rdimon' implementation, which uses the Arm
Semihosting protocol. In order to support a remote host that runs on
Windows we need to know whether a file is to be opened in binary or
text mode. That means that we need to preserve this information via
O_BINARY until we know what the libgloss binding will be.
This patch simply copies the arm implementation from sys/arm/sys and
puts it in machine/aarch64/sys, because we don't have a 'sys' subtree
on aarch64.
Diff:
---
newlib/libc/machine/aarch64/sys/fcntl.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/newlib/libc/machine/aarch64/sys/fcntl.h b/newlib/libc/machine/aarch64/sys/fcntl.h
new file mode 100644
index 000000000..7da1d46da
--- /dev/null
+++ b/newlib/libc/machine/aarch64/sys/fcntl.h
@@ -0,0 +1,12 @@
+#ifndef _SYS_FCNTL_H_
+#define _SYS_FCNTL_H_
+
+#include <sys/_default_fcntl.h>
+
+/* We want to support O_BINARY for the open syscall.
+ For example, the Demon debug monitor has a separate
+ flag value for "rb" vs "r". */
+#define _FBINARY 0x10000
+#define O_BINARY _FBINARY
+
+#endif /* _SYS_FCNTL_H_ */
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