"WLI" == William Lee Irwin <wli@holomorphy.com> writes: WLI> Actually, it's an interaction with the kernel. The ELF .interp is loaded WLI> by default at 0x40000000 when formatted as a DSO. Formatting the .interp On Thu, Jan 10, 2002 at 02:24:07PM +0200, Momchil Velikov wrote: > How come ? The kernel just searches for mmap space starting at > TASK_UNMAPPED_BASE == TASK_SIZE / 3. It manages the > [TASK_UNMAPPED_BASE, TASK_SIZE) range by a simple address ordered > first fit algorithm. It just doesn't leave enough space for sbrk, > _for no good reason_. (at least as far as I can tell). Yes, that is how and why the kernel makes its decision. On Thu, Jan 10, 2002 at 02:24:07PM +0200, Momchil Velikov wrote: > Here's the program headers of /lib/ld-2.2.4.so > LOAD 0x000000 0x00000000 0x00000000 0x13ce0 0x13ce0 R E 0x1000 > LOAD 0x013ce0 0x00014ce0 0x00014ce0 0x002f8 0x006f8 RW 0x1000 > DYNAMIC 0x013d98 0x00014d98 0x00014d98 0x000b0 0x000b0 RW 0x4 > I don't see 0x40000000 here. The decision is made by the kernel; DSO's necessarily do not specify placement, and if they did, it would be a userspace decision. Cheers, Bill -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
