linux-user: fixup termios2 related things on PowerPC

The termios things on PowerPC equal to termios2 things otherwhere.

Use some simple #define's to allow both termios and termios2 to map to
termios on PowerPC.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Link: https://github.com/AOSC-Dev/aosc-os-abbs/blob/8d77eeaa76e9b159c3f35adaf73c875751aa7d17/app-virtualization/qemu/01-shared/patches/0005-AOSCOS-linux-user-fixup-termios2-related-things-on-P.patch
Link: https://lore.kernel.org/qemu-devel/4403eb94ddbb2934f1f75d94ce921f0f1078ad9f.camel@icenowy.me
Reviewed-by: Helge Deller <deller@gmx.de>

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9443eb3a172c97ee0934e39bf430f439dd7737a6..64a2f1cbb2b0d168d49bacfe5897457e380b0cac 100644 (file)
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -148,6 +148,21 @@
 #include "fd-trans.h"
 #include "user/cpu_loop.h"
 
+#if defined(__powerpc__)
+/*
+ * On PowerPC termios2 is lacking and termios along with ioctls w/o 2
+ * behaves like termios2 and things with 2 on other architectures.
+ *
+ * Just define termios2-related things to be the same with termios-related
+ * ones to support PowerPC.
+ */
+#define host_termios2 host_termios
+#define TCGETS2 TCGETS
+#define TCSETS2 TCSETS
+#define TCSETSW2 TCSETSW
+#define TCSETSF2 TCSETSF
+#endif
+
 #ifndef CLONE_IO
 #define CLONE_IO                0x80000000      /* Clone io context */
 #endif