Changes in Makefile

349a1e57 - MFS r352754: Add WITH_PIE knob to build Position Independent Executables

Thu, 26 Sep 2019 18:37:58 +0000

MFS r352754: Add WITH_PIE knob to build Position Independent ExecutablesMFC r344179: Add WITH_PIE knob to build Position Independent ExecutablesBuilding binaries as PIE allows the executable itself to be loaded at arandom address when ASLR is enabled (not just its shared libraries).With this change PIE objects have a .pieo extension and INTERNALLIBlibraries libXXX_pie.a.MK_PIE is disabled for some kerberos5 tools, Clang, and Subversion, asthey explicitly reference .a libraries in their Makefiles. These canbe addressed on an individual basis later. MK_PIE is also disabled forrtld-elf because it is already position-independent using bespokeMakefile rules.Currently only dynamically linked binaries will be built as PIE.MFC r344181: Fix Makefile conditional after r344179MFC r344182: Use make's :tl instead of checking "no" and "NO"MFC r344189: Fixup bsd.prog.mk after r344182MFC r344211: wlandebug: disable PIE to fix build failurelibifconfig is built as a static-only PRIVATELIB (and there is no _pie.aversion) so disable PIE in libifconfig's consumer.r345489: Fix GNU objdump build under WITH_PIEExplicitly specified bare .a libraries need ${PIE_SUFFIX}.r345490: Apply WITH_PIE changes to other binutils componentsFollowon to r345489, explicitly specified bare .a libraries need${PIE_SUFFIX} (although these still built).r345778: Fix gdb/kgdb build under WITH_PIEExplicitly specified bare .a libraries need ${PIE_SUFFIX}.Approved by: re (gjb)Sponsored by: The FreeBSD Foundation List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

15c36a23 - Switch to use libedit instead of readline

Tue, 06 Feb 2018 12:12:44 +0000

Switch to use libedit instead of readline List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

eacae6dc - Fix LDADD/DPADD that should be LIBADD.

Fri, 04 Dec 2015 03:17:47 +0000

Fix LDADD/DPADD that should be LIBADD.Sponsored by: EMC / Isilon Storage Division List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

7f911abe - Add support to libkvm for reading vmcores from other architectures.

Fri, 27 Nov 2015 18:58:26 +0000

Add support to libkvm for reading vmcores from other architectures.- Add a kvaddr_type to represent kernel virtual addresses instead of unsigned long.- Add a struct kvm_nlist which is a stripped down version of struct nlist that uses kvaddr_t for n_value.- Add a kvm_native() routine that returns true if an open kvm descriptor is for a native kernel and memory image.- Add a kvm_open2() function similar to kvm_openfiles(). It drops the unused 'swapfile' argument and adds a new function pointer argument for a symbol resolving function. Native kernels still use _fdnlist() from libc to resolve symbols if a resolver function is not supplied, but cross kernels require a resolver.- Add a kvm_nlist2() function similar to kvm_nlist() except that it uses struct kvm_nlist instead of struct nlist.- Add a kvm_read2() function similar to kvm_read() except that it uses kvaddr_t instead of unsigned long for the kernel virtual address.- Add a new kvm_arch switch of routines needed by a vmcore backend. Each backend is responsible for implementing kvm_read2() for a given vmcore format.- Use libelf to read headers from ELF kernels and cores (except for powerpc cores).- Add internal helper routines for the common page offset hash table used by the minidump backends.- Port all of the existing kvm backends to implement a kvm_arch switch and to be cross-friendly by using private constants instead of ones that vary by platform (e.g. PAGE_SIZE). Static assertions are present when a given backend is compiled natively to ensure the private constants match the real ones.- Enable all of the existing vmcore backends on all platforms. This means that libkvm on any platform should be able to perform KVA translation and read data from a vmcore of any platform.Tested on: amd64, i386, sparc64 (marius)Differential Revision: https://reviews.freebsd.org/D3341 List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

ee5a34ec - Convert to LIBADD

Tue, 25 Nov 2014 21:18:18 +0000

Convert to LIBADDReduce overlinking List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

5608fd23 - Revert r267233 for now. PIE support needs to be reworked.

Tue, 19 Aug 2014 15:04:32 +0000

Revert r267233 for now. PIE support needs to be reworked.1. 50+% of NO_PIE use is fixed by adding -fPIC to INTERNALLIB and other build-only utility libraries.2. Another 40% is fixed by generating _pic.a variants of various libraries.3. Some of the NO_PIE use is a bit absurd as it is disabling PIE (and ASLR) where it never would work anyhow, such as csu or loader. This suggests there may be better ways of adding support to the tree. Many of these cases can be fixed such that -fPIE will work but there is really no reason to have it in those cases.4. Some of the uses are working around hacks done to some Makefiles that are really building libraries but have been using bsd.prog.mk because the code is cleaner. Had they been using bsd.lib.mk then NO_PIE would not have been needed.We likely do want to enable PIE by default (opt-out) for non-tree consumers(such as ports). For in-tree though we probably want to only enable PIE(opt-in) for common attack targets such as remote service daemons and setuidutilities. This is also a great performance compromise since ASLR is expectedto reduce performance. As such it does not make sense to enable it in allutilities such as ls(1) that have little benefit to having it enabled.Reported by: kib List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

d029c3aa - Rework privatelib/internallib

Wed, 06 Aug 2014 22:17:26 +0000

Rework privatelib/internallibMake sure everything linking to a privatelib and/or an internallib does it directlyfrom the OBJDIR rather than DESTDIR.Add src.libnames.mk so bsd.libnames.mk is not polluted by libraries not existsingin final installationIntroduce the LD* variable which is what ld(1) is expecting (via LDADD) to link tointernal/privatelibDirectly link to the .so in case of private library to avoid having to complexifyLDFLAGS.Phabric: https://phabric.freebsd.org/D553Reviewed by: imp, emaste List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

80189b3b - Replace all uses of libncurses and libtermcap with their wide character

Thu, 17 Jul 2014 18:24:34 +0000

Replace all uses of libncurses and libtermcap with their wide charactervariants. This allows usable file system images (i.e. those with both ashell and an editor) to be created with only one copy of the curses library.Exp-run: antoinePR: 189842Discussed with: baptSponsored by: DARPA, AFRL List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

8a833bda - The GNU readline library is now an INTERNALLIB - that is, it is

Wed, 09 Jul 2014 15:52:30 +0000

The GNU readline library is now an INTERNALLIB - that is, it isstatically linked into consumers (GDB and variants) in the basesystem, and the shared library is no longer installed.That also allows ports to be able to use a modern version of readlinePR: 162948Reviewed by: emaste List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

864c53ea - In preparation for ASLR [1] support add WITH_PIE to support building with -fPIE.

Sun, 08 Jun 2014 17:29:31 +0000

In preparation for ASLR [1] support add WITH_PIE to support building with -fPIE.This is currently an opt-in build flag. Once ASLR support is ready and stableit should changed to opt-out and be enabled by default along with ASLR.Each application Makefile uses opt-out to ensure that ASLR will be enabled bydefault in new directories when the system is compiled with PIE/ASLR. [2]Mark known build failures as NO_PIE for now.The only known runtime failure was rtld.[1] http://www.bsdcan.org/2014/schedule/events/452.en.htmlSubmitted by: Shawn Webb Discussed between: des@ and Shawn Webb [2] List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

03197d0a - When building a cross kgdb, link against the appropriate cross libkvm.

Sat, 28 Dec 2013 23:31:22 +0000

When building a cross kgdb, link against the appropriate cross libkvm.Provide an implementation of ps_pglobal_lookup() for use by the crosslibkvm. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

e8dce5b9 - Complete the integration of tbemd branch into head.

Wed, 10 Nov 2010 06:39:49 +0000

Complete the integration of tbemd branch into head.TARGET_BIG_ENDIAN is now completely dead, except where it wasoriginally supposed to be used (internally in the toolchain building).TARGET_ARCH has changed in three cases:(1) Little endian mips has changed to mipsel.(2) Big endian mips has changed to mipseb.(3) Big endian arm has changed to armeb.Some additional changes are needed to make 'make universe' work on armand mips after this change, so those are commented out for now.UPDATING information will be forthcoming. Any remaining rough edgeswill be hammered out in -current. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

4496b357 - Move the code for working with kld's out into its own file.

Thu, 24 Jan 2008 19:11:13 +0000

Move the code for working with kld's out into its own file. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

d7234520 - Restore r1.2 change to use TARGET_ARCH.

Sun, 20 Feb 2005 23:06:03 +0000

Restore r1.2 change to use TARGET_ARCH.Submitted by: kris List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

325ce5d8 - Attempt to make kgdb little more useful and easy to use. Properly initialize

Sun, 20 Feb 2005 22:55:07 +0000

Attempt to make kgdb little more useful and easy to use. Properly initializeit to recognise what ABI to use on amd64 (and possibly others) platform.Display PID and process name as a part of the 'info threads' output, TIDsalone are too confusing. Introduce new commmands 'tid ' and 'proc 'to accompany gdb's default 'thread ' to make the task of switchingbetween different contexts easier. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

01950bb6 - Use the system gnuregex library vs. building GNU regex bits into libiberty

Mon, 14 Feb 2005 12:10:14 +0000

Use the system gnuregex library vs. building GNU regex bits into libibertyand using them.Reviewed by: marcel,impDesired by: ache List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

20a96613 - Makefile (only) changes to allow building a cross debugger.

Tue, 30 Nov 2004 05:12:37 +0000

Makefile (only) changes to allow building a cross debugger. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

88bca61e - s/MACHINE_ARCH/TARGET_ARCH/. We use TARGET_ARCH to pick the MD files

Tue, 30 Nov 2004 02:56:53 +0000

s/MACHINE_ARCH/TARGET_ARCH/. We use TARGET_ARCH to pick the MD filesfor libgdb and should do so here as well. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile

60b992ff - Add the beginnings of kernel debugging support. the kgdb(1) tool

Sun, 25 Jul 2004 05:29:15 +0000

Add the beginnings of kernel debugging support. the kgdb(1) toolis basicly a shell on top of libgdb that knows about kernel threads,kernel modules and kvm(3). As the word "beginnings" implies, notall of the features have been implemented yet. The tool is usefuland I'd like feedback on the taken route.The simplest way to debug a kernel core file is: kgdb -n 0This opens /var/crash/vmcore.0 with the corresponding kernel inthe object directory (kernel.debug is used if it exists).Typical things that need to be added are:o Auto loading of kernel modules,o Handling of trapframes so that backtraces can be taken across them,o Some fancy commands to extract useful information out of a core file,o Various (probably many) other things. List of files: /freebsd-12.1/gnu/usr.bin/gdb/kgdb/Makefile