diff mbox series

[v4.5,27/29] gdbstub: Adjust gdb_do_syscall to only use uint32_t and uint64_t

Message ID 20230303025805.625589-28-richard.henderson@linaro.org
State New
Headers show
Series gdbstub/next: re-organise and split build | expand

Commit Message

Richard Henderson March 3, 2023, 2:58 a.m. UTC 
Pass %x as uint32_t and %lx as uint64_t; pass the address
of %s as uint64_t and the length as uint32_t.

Add casts in semihosting/syscalls.c from target_ulong to
uint64_t; add casts from int to uint32_t for clarity.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 gdbstub/syscalls.c     | 12 ++++++------
 semihosting/syscalls.c | 34 ++++++++++++++++++++--------------
 2 files changed, 26 insertions(+), 20 deletions(-)

Comments

Philippe Mathieu-Daudé March 3, 2023, 9:44 a.m. UTC | #1 
On 3/3/23 03:58, Richard Henderson wrote:
> Pass %x as uint32_t and %lx as uint64_t; pass the address
> of %s as uint64_t and the length as uint32_t.
> 
> Add casts in semihosting/syscalls.c from target_ulong to
> uint64_t; add casts from int to uint32_t for clarity.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   gdbstub/syscalls.c     | 12 ++++++------
>   semihosting/syscalls.c | 34 ++++++++++++++++++++--------------
>   2 files changed, 26 insertions(+), 20 deletions(-)

Few more casts, but nice target(_ulong) simplification!

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/gdbstub/syscalls.c b/gdbstub/syscalls.c
index af42e244f9..b7d85c41c7 100644
--- a/gdbstub/syscalls.c
+++ b/gdbstub/syscalls.c
@@ -109,14 +109,14 @@  void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...)
     *(p++) = 'F';
     while (*fmt) {
         if (*fmt == '%') {
-            target_ulong addr;
             uint64_t i64;
+            uint32_t i32;
 
             fmt++;
             switch (*fmt++) {
             case 'x':
-                addr = va_arg(va, target_ulong);
-                p += snprintf(p, p_end - p, TARGET_FMT_lx, addr);
+                i32 = va_arg(va, uint32_t);
+                p += snprintf(p, p_end - p, "%" PRIx32, i32);
                 break;
             case 'l':
                 if (*(fmt++) != 'x') {
@@ -126,9 +126,9 @@  void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...)
                 p += snprintf(p, p_end - p, "%" PRIx64, i64);
                 break;
             case 's':
-                addr = va_arg(va, target_ulong);
-                p += snprintf(p, p_end - p, TARGET_FMT_lx "/%x",
-                              addr, va_arg(va, int));
+                i64 = va_arg(va, uint64_t);
+                i32 = va_arg(va, uint32_t);
+                p += snprintf(p, p_end - p, "%" PRIx64 "/%x" PRIx32, i64, i32);
                 break;
             default:
             bad_format:
diff --git a/semihosting/syscalls.c b/semihosting/syscalls.c
index 42080ffdda..68899ebb1c 100644
--- a/semihosting/syscalls.c
+++ b/semihosting/syscalls.c
@@ -139,46 +139,48 @@  static void gdb_open(CPUState *cs, gdb_syscall_complete_cb complete,
 
     gdb_open_complete = complete;
     gdb_do_syscall(gdb_open_cb, "open,%s,%x,%x",
-                   fname, len, (target_ulong)gdb_flags, (target_ulong)mode);
+                   (uint64_t)fname, (uint32_t)len,
+                   (uint32_t)gdb_flags, (uint32_t)mode);
 }
 
 static void gdb_close(CPUState *cs, gdb_syscall_complete_cb complete,
                       GuestFD *gf)
 {
-    gdb_do_syscall(complete, "close,%x", (target_ulong)gf->hostfd);
+    gdb_do_syscall(complete, "close,%x", (uint32_t)gf->hostfd);
 }
 
 static void gdb_read(CPUState *cs, gdb_syscall_complete_cb complete,
                      GuestFD *gf, target_ulong buf, target_ulong len)
 {
-    gdb_do_syscall(complete, "read,%x,%x,%x",
-                   (target_ulong)gf->hostfd, buf, len);
+    gdb_do_syscall(complete, "read,%x,%lx,%lx",
+                   (uint32_t)gf->hostfd, (uint64_t)buf, (uint64_t)len);
 }
 
 static void gdb_write(CPUState *cs, gdb_syscall_complete_cb complete,
                       GuestFD *gf, target_ulong buf, target_ulong len)
 {
-    gdb_do_syscall(complete, "write,%x,%x,%x",
-                   (target_ulong)gf->hostfd, buf, len);
+    gdb_do_syscall(complete, "write,%x,%lx,%lx",
+                   (uint32_t)gf->hostfd, (uint64_t)buf, (uint64_t)len);
 }
 
 static void gdb_lseek(CPUState *cs, gdb_syscall_complete_cb complete,
                       GuestFD *gf, int64_t off, int gdb_whence)
 {
     gdb_do_syscall(complete, "lseek,%x,%lx,%x",
-                   (target_ulong)gf->hostfd, off, (target_ulong)gdb_whence);
+                   (uint32_t)gf->hostfd, off, (uint32_t)gdb_whence);
 }
 
 static void gdb_isatty(CPUState *cs, gdb_syscall_complete_cb complete,
                        GuestFD *gf)
 {
-    gdb_do_syscall(complete, "isatty,%x", (target_ulong)gf->hostfd);
+    gdb_do_syscall(complete, "isatty,%x", (uint32_t)gf->hostfd);
 }
 
 static void gdb_fstat(CPUState *cs, gdb_syscall_complete_cb complete,
                       GuestFD *gf, target_ulong addr)
 {
-    gdb_do_syscall(complete, "fstat,%x,%x", (target_ulong)gf->hostfd, addr);
+    gdb_do_syscall(complete, "fstat,%x,%lx",
+                   (uint32_t)gf->hostfd, (uint64_t)addr);
 }
 
 static void gdb_stat(CPUState *cs, gdb_syscall_complete_cb complete,
@@ -191,7 +193,8 @@  static void gdb_stat(CPUState *cs, gdb_syscall_complete_cb complete,
         return;
     }
 
-    gdb_do_syscall(complete, "stat,%s,%x", fname, len, addr);
+    gdb_do_syscall(complete, "stat,%s,%lx",
+                   (uint64_t)fname, (uint32_t)len, (uint64_t)addr);
 }
 
 static void gdb_remove(CPUState *cs, gdb_syscall_complete_cb complete,
@@ -203,7 +206,7 @@  static void gdb_remove(CPUState *cs, gdb_syscall_complete_cb complete,
         return;
     }
 
-    gdb_do_syscall(complete, "unlink,%s", fname, len);
+    gdb_do_syscall(complete, "unlink,%s", (uint64_t)fname, (uint32_t)len);
 }
 
 static void gdb_rename(CPUState *cs, gdb_syscall_complete_cb complete,
@@ -223,7 +226,9 @@  static void gdb_rename(CPUState *cs, gdb_syscall_complete_cb complete,
         return;
     }
 
-    gdb_do_syscall(complete, "rename,%s,%s", oname, olen, nname, nlen);
+    gdb_do_syscall(complete, "rename,%s,%s",
+                   (uint64_t)oname, (uint32_t)olen,
+                   (uint64_t)nname, (uint32_t)nlen);
 }
 
 static void gdb_system(CPUState *cs, gdb_syscall_complete_cb complete,
@@ -235,13 +240,14 @@  static void gdb_system(CPUState *cs, gdb_syscall_complete_cb complete,
         return;
     }
 
-    gdb_do_syscall(complete, "system,%s", cmd, len);
+    gdb_do_syscall(complete, "system,%s", (uint64_t)cmd, (uint32_t)len);
 }
 
 static void gdb_gettimeofday(CPUState *cs, gdb_syscall_complete_cb complete,
                              target_ulong tv_addr, target_ulong tz_addr)
 {
-    gdb_do_syscall(complete, "gettimeofday,%x,%x", tv_addr, tz_addr);
+    gdb_do_syscall(complete, "gettimeofday,%lx,%lx",
+                   (uint64_t)tv_addr, (uint64_t)tz_addr);
 }
 
 /*