src/os_cpu/linux_x86/vm/os_linux_x86.cpp

changeset 455
e195fe4c40c7
parent 435
a61af66fc99e
child 487
75b0f3cb1943
equal deleted inserted replaced
454:a73cc31728fe 455:e195fe4c40c7
155 } else { 155 } else {
156 return os::get_sender_for_C_frame(&myframe); 156 return os::get_sender_for_C_frame(&myframe);
157 } 157 }
158 } 158 }
159 159
160
161 // Utility functions 160 // Utility functions
162
163 julong os::allocatable_physical_memory(julong size) {
164 #ifdef AMD64
165 return size;
166 #else
167 julong result = MIN2(size, (julong)3800*M);
168 if (!is_allocatable(result)) {
169 // See comments under solaris for alignment considerations
170 julong reasonable_size = (julong)2*G - 2 * os::vm_page_size();
171 result = MIN2(size, reasonable_size);
172 }
173 return result;
174 #endif // AMD64
175 }
176 161
177 // From IA32 System Programming Guide 162 // From IA32 System Programming Guide
178 enum { 163 enum {
179 trap_page_fault = 0xE 164 trap_page_fault = 0xE
180 }; 165 };

mercurial