sim: switch sim_{read,write} APIs to 64-bit all the time [PR sim/7504]

We've been using SIM_ADDR which has always been 32-bit.  This means
the upper 32-bit address range in 64-bit sims is inaccessible.  Use
64-bit addresses all the time since we want the APIs to be stable
regardless of the active arch backend (which can be 32 or 64-bit).

The length is also 64-bit because it's completely feasible to have
a program that is larger than 4 GiB in size/image/runtime.  Forcing
the caller to manually chunk those accesses up into 4 GiB at a time
doesn't seem useful to anyone.

Bug: https://sourceware.org/PR7504

1 files changed, 8 insertions, 8 deletions

diff --git a/sim/arm/wrapper.c b/sim/arm/wrapper.c
index 2c5253f..7b11532 100644
--- a/sim/arm/wrapper.c
+++ b/sim/arm/wrapper.c
@@ -150,13 +150,13 @@ ARMul_ConsolePrint (ARMul_State * state,
     }
 }
 
-int
+uint64_t
 sim_write (SIM_DESC sd ATTRIBUTE_UNUSED,
-	   SIM_ADDR addr,
+	   uint64_t addr,
 	   const void * buffer,
-	   int size)
+	   uint64_t size)
 {
-  int i;
+  uint64_t i;
   const unsigned char * data = buffer;
 
   init ();
@@ -167,13 +167,13 @@ sim_write (SIM_DESC sd ATTRIBUTE_UNUSED,
   return size;
 }
 
-int
+uint64_t
 sim_read (SIM_DESC sd ATTRIBUTE_UNUSED,
-	  SIM_ADDR addr,
+	  uint64_t addr,
 	  void * buffer,
-	  int size)
+	  uint64_t size)
 {
-  int i;
+  uint64_t i;
   unsigned char * data = buffer;
 
   init ();