freebsd-skq/usr.bin/ldd/Makefile

# $FreeBSD$

PROG?=		ldd
SRCS=		ldd.c

LIBADD=		elf

.include <bsd.prog.mk>
$Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00			`# $FreeBSD$`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00
Tweak the support for using ldd on 32-bit objects a bit further. Specifically, build a 32-bit /usr/bin/ldd32 on amd64 which handles 32-bit objects. Since it is a 32-bit binary, it can fork a child process which can dlopen() a 32-bit shared library. The current 32-bit support in ldd can't do this because it does the dlopen() from a 64-bit process. In order to preserve an intuitive interface for users, the ldd binary automatically execs /usr/bin/ldd32 for 32-bit objects. The end result is that ldd on amd64 now transparently handles 32-bit shared libraries in addition to 32-bit binaries. Submitted by: ps (indirectly) 2008-08-01 21:52:41 +00:00			`PROG?= ldd`
Make ldd work on alpha. 1998-09-16 09:31:48 +00:00			`SRCS= ldd.c`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00
Fix ldd to work with more ELF files. - Use libelf to parse ELF data structures and remove code duplication for ELF32. - Don't require the OSABI field to be set to the FreeBSD OSABI for shared libraries. Both AArch64 and RISC-V leave it set to "none" and instead depend on the ABI tag note. For ldd, this means falling back to walking the notes in PT_NOTE segments to find the ABI tag note to determine if an ELF shared library without OSABI set in the header file is a FreeBSD shared library. Reviewed by: kib MFC after: 5 days Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D28342 2021-01-29 18:53:50 +00:00			`LIBADD= elf`

Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00			`.include <bsd.prog.mk>`