bionic: Do not use magic number for portability

Do not use the magic number 0xFFFFFFFFU to represent the max value of an address
as it's not correct on 64bit platform. We should use UINTPTR_MAX instead.

Change-Id: I1fc6f5864a651b2eddea2333cb0788f9d9223270
Signed-off-by: Qiming Shi <qiming.shi@intel.com>
Signed-off-by: Weiwu Chen <weiwu.chen@intel.com>

diff --git a/linker/linker_phdr.cpp b/linker/linker_phdr.cpp
index b4d72b2..3101511 100644 (file)
--- a/linker/linker_phdr.cpp
+++ b/linker/linker_phdr.cpp
@@ -252,8 +252,8 @@ bool ElfReader::ReadProgramHeader() {
 size_t phdr_table_get_load_size(const Elf_Phdr* phdr_table, size_t phdr_count,
                                 Elf_Addr* out_min_vaddr,
                                 Elf_Addr* out_max_vaddr) {
-    Elf_Addr min_vaddr = 0xFFFFFFFFU;
-    Elf_Addr max_vaddr = 0x00000000U;
+    Elf_Addr min_vaddr = UINTPTR_MAX;
+    Elf_Addr max_vaddr = 0;
 
     bool found_pt_load = false;
     for (size_t i = 0; i < phdr_count; ++i) {
@@ -273,7 +273,7 @@ size_t phdr_table_get_load_size(const Elf_Phdr* phdr_table, size_t phdr_count,
         }
     }
     if (!found_pt_load) {
-        min_vaddr = 0x00000000U;
+        min_vaddr = 0;
     }
 
     min_vaddr = PAGE_START(min_vaddr);