diff --git a/docs/elf.md b/docs/elf.md index 993c088..5c231bc 100644 --- a/docs/elf.md +++ b/docs/elf.md @@ -4,12 +4,12 @@ 1. ELF header [0x00 : 0x40] 2. Program headers [0x40 : 0xB0] -3. Padding -4. Executable code [0x1000 : ...] +3. String table +4. Section headers 5. Padding -6. Read-only data [0x2000 : ...] -7. String table -8. Section headers +6. Executable code [0x1000 : ...] +7. Padding +8. Read-only data [0x2000 : ...] ## Entry point @@ -20,16 +20,10 @@ The executables are compiled as position-independent executables (PIE). Therefor To ensure that execution permissions are properly applied, the code section and the data section are aligned on page boundaries. Permissions like read, write and execute can only be applied to an entire page in memory. -## Initialization in Linux - -ELF loader: -https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/binfmt_elf.c - -ELF register definitions: -https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/elf.h - ## Links +- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/binfmt_elf.c +- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/elf.h - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/elf.h - https://lwn.net/Articles/631631/ - https://en.wikipedia.org/wiki/Executable_and_Linkable_Format