spu: Use ptid from regcache instead of inferior_ptid

The implementations of to_fetch_registers/to_store_registers in the spu
code use some functions that rely on inferior_ptid.  It's simpler for
now to set/restore inferior_ptid.

gdb/ChangeLog:

	* spu-linux-nat.c (spu_fetch_inferior_registers,
	spu_store_inferior_registers): Use ptid from regcache, set and
	restore inferior_ptid.
	* spu-multiarch.c (spu_fetch_registers, spu_store_registers):
	Likewise.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 70d48a5..02ab32c 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2017-03-20  Simon Marchi  <simon.marchi@polymtl.ca>
 
+       * spu-linux-nat.c (spu_fetch_inferior_registers,
+       spu_store_inferior_registers): Use ptid from regcache, set and
+       restore inferior_ptid.
+       * spu-multiarch.c (spu_fetch_registers, spu_store_registers):
+       Likewise.
+
+2017-03-20  Simon Marchi  <simon.marchi@polymtl.ca>
+
        * i386-linux-nat.c (fetch_register, store_register,
        i386_linux_fetch_inferior_registers,
        i386_linux_store_inferior_registers): Use ptid from regcache.

diff --git a/gdb/spu-linux-nat.c b/gdb/spu-linux-nat.c
index c5b9122..19552fc 100644 (file)
--- a/gdb/spu-linux-nat.c
+++ b/gdb/spu-linux-nat.c
@@ -492,6 +492,11 @@ spu_fetch_inferior_registers (struct target_ops *ops,
   int fd;
   ULONGEST addr;
 
+  /* Since we use functions that rely on inferior_ptid, we need to set and
+     restore it.  */
+  scoped_restore save_ptid
+    = make_scoped_restore (&inferior_ptid, regcache_get_ptid (regcache));
+
   /* We must be stopped on a spu_run system call.  */
   if (!parse_spufs_run (&fd, &addr))
     return;
@@ -539,6 +544,11 @@ spu_store_inferior_registers (struct target_ops *ops,
   int fd;
   ULONGEST addr;
 
+  /* Since we use functions that rely on inferior_ptid, we need to set and
+     restore it.  */
+  scoped_restore save_ptid
+    = make_scoped_restore (&inferior_ptid, regcache_get_ptid (regcache));
+
   /* We must be stopped on a spu_run system call.  */
   if (!parse_spufs_run (&fd, &addr))
     return;

diff --git a/gdb/spu-multiarch.c b/gdb/spu-multiarch.c
index b99a1a3..abc4653 100644 (file)
--- a/gdb/spu-multiarch.c
+++ b/gdb/spu-multiarch.c
@@ -149,6 +149,11 @@ spu_fetch_registers (struct target_ops *ops,
   int spufs_fd;
   CORE_ADDR spufs_addr;
 
+  /* Since we use functions that rely on inferior_ptid, we need to set and
+     restore it.  */
+  scoped_restore save_ptid
+    = make_scoped_restore (&inferior_ptid, regcache_get_ptid (regcache));
+
   /* This version applies only if we're currently in spu_run.  */
   if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
     {
@@ -203,6 +208,11 @@ spu_store_registers (struct target_ops *ops,
   int spufs_fd;
   CORE_ADDR spufs_addr;
 
+  /* Since we use functions that rely on inferior_ptid, we need to set and
+     restore it.  */
+  scoped_restore save_ptid
+    = make_scoped_restore (&inferior_ptid, regcache_get_ptid (regcache));
+
   /* This version applies only if we're currently in spu_run.  */
   if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
     {