memory: Display MemoryRegion name in read/write ops trace events

MemoryRegion names is cached on first call to memory_region_name(),
so displaying the name is trace events is cheap. Add it for read /
write ops.

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Laurent Vivier <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Laurent Vivier <[email protected]>

Author: philmd

softmmu/memory.c

@@ -442,7 +442,8 @@ static MemTxResult  memory_region_read_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_READ)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size,
+                                     memory_region_name(mr));
     }
     memory_region_shift_read_access(value, shift, mask, tmp);
     return MEMTX_OK;
@@ -464,7 +465,8 @@ static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_READ)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size,
+                                     memory_region_name(mr));
     }
     memory_region_shift_read_access(value, shift, mask, tmp);
     return r;
@@ -484,7 +486,8 @@ static MemTxResult memory_region_write_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_WRITE)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size,
+                                      memory_region_name(mr));
     }
     mr->ops->write(mr->opaque, addr, tmp, size);
     return MEMTX_OK;
@@ -504,7 +507,8 @@ static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr,
         trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
     } else if (trace_event_get_state_backends(TRACE_MEMORY_REGION_OPS_WRITE)) {
         hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
-        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
+        trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size,
+                                      memory_region_name(mr));
     }
     return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs);
 }

softmmu/trace-events

@@ -9,8 +9,8 @@ cpu_in(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
 cpu_out(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
 
 # memory.c
-memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
-memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
+memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size, const char *name) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u name '%s'"
+memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size, const char *name) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u name '%s'"
 memory_region_subpage_read(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
 memory_region_subpage_write(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
 memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"