include/exec: Move gdb_stat and gdb_timeval to gdbstub.h

We have two copies of these structures, and require them
in semihosting/ going forward.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec/gdbstub.h

@@ -19,6 +19,31 @@
 #define GDB_O_TRUNC   0x400
 #define GDB_O_EXCL    0x800
 
+/* For gdb file i/o stat/fstat. */
+typedef uint32_t gdb_mode_t;
+typedef uint32_t gdb_time_t;
+
+struct gdb_stat {
+  uint32_t    gdb_st_dev;     /* device */
+  uint32_t    gdb_st_ino;     /* inode */
+  gdb_mode_t  gdb_st_mode;    /* protection */
+  uint32_t    gdb_st_nlink;   /* number of hard links */
+  uint32_t    gdb_st_uid;     /* user ID of owner */
+  uint32_t    gdb_st_gid;     /* group ID of owner */
+  uint32_t    gdb_st_rdev;    /* device type (if inode device) */
+  uint64_t    gdb_st_size;    /* total size, in bytes */
+  uint64_t    gdb_st_blksize; /* blocksize for filesystem I/O */
+  uint64_t    gdb_st_blocks;  /* number of blocks allocated */
+  gdb_time_t  gdb_st_atime;   /* time of last access */
+  gdb_time_t  gdb_st_mtime;   /* time of last modification */
+  gdb_time_t  gdb_st_ctime;   /* time of last change */
+} QEMU_PACKED;
+
+struct gdb_timeval {
+  gdb_time_t tv_sec;  /* second */
+  uint64_t tv_usec;   /* microsecond */
+} QEMU_PACKED;
+
 #ifdef NEED_CPU_H
 #include "cpu.h"
 

target/m68k/m68k-semi.c

@@ -45,30 +45,6 @@
 #define HOSTED_ISATTY 12
 #define HOSTED_SYSTEM 13
 
-typedef uint32_t gdb_mode_t;
-typedef uint32_t gdb_time_t;
-
-struct m68k_gdb_stat {
-  uint32_t    gdb_st_dev;     /* device */
-  uint32_t    gdb_st_ino;     /* inode */
-  gdb_mode_t  gdb_st_mode;    /* protection */
-  uint32_t    gdb_st_nlink;   /* number of hard links */
-  uint32_t    gdb_st_uid;     /* user ID of owner */
-  uint32_t    gdb_st_gid;     /* group ID of owner */
-  uint32_t    gdb_st_rdev;    /* device type (if inode device) */
-  uint64_t    gdb_st_size;    /* total size, in bytes */
-  uint64_t    gdb_st_blksize; /* blocksize for filesystem I/O */
-  uint64_t    gdb_st_blocks;  /* number of blocks allocated */
-  gdb_time_t  gdb_st_atime;   /* time of last access */
-  gdb_time_t  gdb_st_mtime;   /* time of last modification */
-  gdb_time_t  gdb_st_ctime;   /* time of last change */
-} QEMU_PACKED;
-
-struct gdb_timeval {
-  gdb_time_t tv_sec;  /* second */
-  uint64_t tv_usec;   /* microsecond */
-} QEMU_PACKED;
-
 static int translate_openflags(int flags)
 {
     int hf;
@@ -90,11 +66,13 @@ static int translate_openflags(int flags)
 
 static void translate_stat(CPUM68KState *env, target_ulong addr, struct stat *s)
 {
-    struct m68k_gdb_stat *p;
+    struct gdb_stat *p;
 
-    if (!(p = lock_user(VERIFY_WRITE, addr, sizeof(struct m68k_gdb_stat), 0)))
+    p = lock_user(VERIFY_WRITE, addr, sizeof(struct gdb_stat), 0);
+    if (!p) {
         /* FIXME - should this return an error code? */
         return;
+    }
     p->gdb_st_dev = cpu_to_be32(s->st_dev);
     p->gdb_st_ino = cpu_to_be32(s->st_ino);
     p->gdb_st_mode = cpu_to_be32(s->st_mode);
@@ -114,7 +92,7 @@ static void translate_stat(CPUM68KState *env, target_ulong addr, struct stat *s)
     p->gdb_st_atime = cpu_to_be32(s->st_atime);
     p->gdb_st_mtime = cpu_to_be32(s->st_mtime);
     p->gdb_st_ctime = cpu_to_be32(s->st_ctime);
-    unlock_user(p, addr, sizeof(struct m68k_gdb_stat));
+    unlock_user(p, addr, sizeof(struct gdb_stat));
 }
 
 static void m68k_semi_return_u32(CPUM68KState *env, uint32_t ret, uint32_t err)

target/nios2/nios2-semi.c

@@ -47,30 +47,6 @@
 #define HOSTED_ISATTY 12
 #define HOSTED_SYSTEM 13
 
-typedef uint32_t gdb_mode_t;
-typedef uint32_t gdb_time_t;
-
-struct nios2_gdb_stat {
-  uint32_t    gdb_st_dev;     /* device */
-  uint32_t    gdb_st_ino;     /* inode */
-  gdb_mode_t  gdb_st_mode;    /* protection */
-  uint32_t    gdb_st_nlink;   /* number of hard links */
-  uint32_t    gdb_st_uid;     /* user ID of owner */
-  uint32_t    gdb_st_gid;     /* group ID of owner */
-  uint32_t    gdb_st_rdev;    /* device type (if inode device) */
-  uint64_t    gdb_st_size;    /* total size, in bytes */
-  uint64_t    gdb_st_blksize; /* blocksize for filesystem I/O */
-  uint64_t    gdb_st_blocks;  /* number of blocks allocated */
-  gdb_time_t  gdb_st_atime;   /* time of last access */
-  gdb_time_t  gdb_st_mtime;   /* time of last modification */
-  gdb_time_t  gdb_st_ctime;   /* time of last change */
-} QEMU_PACKED;
-
-struct gdb_timeval {
-  gdb_time_t tv_sec;  /* second */
-  uint64_t tv_usec;   /* microsecond */
-} QEMU_PACKED;
-
 static int translate_openflags(int flags)
 {
     int hf;
@@ -102,9 +78,9 @@ static int translate_openflags(int flags)
 static bool translate_stat(CPUNios2State *env, target_ulong addr,
                            struct stat *s)
 {
-    struct nios2_gdb_stat *p;
+    struct gdb_stat *p;
 
-    p = lock_user(VERIFY_WRITE, addr, sizeof(struct nios2_gdb_stat), 0);
+    p = lock_user(VERIFY_WRITE, addr, sizeof(struct gdb_stat), 0);
 
     if (!p) {
         return false;
@@ -128,7 +104,7 @@ static bool translate_stat(CPUNios2State *env, target_ulong addr,
     p->gdb_st_atime = cpu_to_be32(s->st_atime);
     p->gdb_st_mtime = cpu_to_be32(s->st_mtime);
     p->gdb_st_ctime = cpu_to_be32(s->st_ctime);
-    unlock_user(p, addr, sizeof(struct nios2_gdb_stat));
+    unlock_user(p, addr, sizeof(struct gdb_stat));
     return true;
 }