drgn is currently licensed as GPLv3+. Part of the long term vision for
drgn is that other projects can use it as a library providing
programmatic interfaces for debugger functionality. A more permissive
license is better suited to this goal. We decided on LGPLv2.1+ as a good
balance between software freedom and permissiveness.
All contributors not employed by Meta were contacted via email and
consented to the license change. The only exception was the author of
commit c4fbf7e589 ("libdrgn: fix for compilation error"), who did not
respond. That commit reverted a single line of code to one originally
written by me in commit 640b1c011d ("libdrgn: embed DWARF index in
DWARF info cache").
Signed-off-by: Omar Sandoval <osandov@osandov.com>
The only relocation type I saw in Debian's kernel module debug info was
R_386_32. R_386_PC32 is easy. The Linux kernel also supports
R_386_PLT32, but that's the same story as R_X86_64_PLT32 in x86-64, so
we don't implement it for now.
I was torn between naming it i386, x86, or IA-32. x86 isn't immediately
clear whether x86-64 is included or not. No one other than Intel calls
it IA-32. i386 might incorrectly imply that it is strictly the original
i386 instruction set with no later extensions, but the more general
meaning is used frequently in the Linux world (e.g., Debian and QEMU
both call it i386), so I went with that in the end.
Signed-off-by: Omar Sandoval <osandov@osandov.com>
