Added elf_get_image_info_for_address() to get an image info for a kernel

image.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27300 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/elf.h

@@ -31,6 +31,7 @@ status_t elf_debug_lookup_symbol_address(addr_t address, addr_t *_baseAddress,
 status_t elf_debug_lookup_user_symbol_address(struct team* team, addr_t address,
 			addr_t *_baseAddress, const char **_symbolName,
 			const char **_imageName, bool *_exactMatch);
+status_t elf_get_image_info_for_address(addr_t address, image_info* info);
 status_t elf_init(struct kernel_args *args);
 
 #ifdef __cplusplus

src/system/kernel/elf.cpp

@@ -25,6 +25,7 @@
 #include <team.h>
 #include <thread.h>
 #include <runtime_loader.h>
+#include <util/AutoLock.h>
 #include <util/khash.h>
 #include <vfs.h>
 #include <vm.h>
@@ -1819,6 +1820,33 @@ unload_kernel_add_on(image_id id)
 }
 
 
+status_t
+elf_get_image_info_for_address(addr_t address, image_info* info)
+{
+	MutexLocker _(sImageMutex);
+	struct elf_image_info* elfInfo = find_image_at_address(address);
+	if (elfInfo == NULL)
+		return B_ENTRY_NOT_FOUND;
+
+	info->id = elfInfo->id;
+    info->type = B_SYSTEM_IMAGE;
+    info->sequence = 0;
+    info->init_order = 0;
+    info->init_routine = NULL;
+    info->term_routine = NULL;
+    info->device = -1;
+    info->node = -1;
+		// TODO: We could actually fill device/node in.
+	strlcpy(info->name, elfInfo->name, sizeof(info->name));
+    info->text = (void*)elfInfo->text_region.start;
+    info->data = (void*)elfInfo->data_region.start;
+    info->text_size = elfInfo->text_region.size;
+    info->data_size = elfInfo->data_region.size;
+
+	return B_OK;
+}
+
+
 status_t
 elf_init(kernel_args *args)
 {