Commit Graph

4168 Commits

Author SHA1 Message Date
emaste
b88b2cfedc Support use of LLVM's libunwind for exception unwinding
It is built in libgcc_s.so and libgcc_eh.a to simplify transition.

It is enabled by default on arm64 (where we previously had no other
unwinder) and may be enabled for testing on other platforms by setting
WITH_LLVM_LIBUNWIND in src.conf(5).

Also add compiler-rt's __gcc_personality_v0 implementation for use with
the LLVM unwinder.

Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D4787
2016-01-09 00:42:07 +00:00
emaste
00b2bfda55 Switch GNU ld to be installed as ld.bfd and linked as ld
We intend to replace GNU ld with LLVM's lld, and on the path to there
we'll experiment with having lld installed or linked as /usr/bin/ld.
Thus, make ld.bfd the primary install target for GNU ld, to later
facilitate making the ld link optional.

Reviewed by:	davide, dim
Differential Revision:	https://reviews.freebsd.org/D4790
2016-01-07 00:15:02 +00:00
emaste
1129b00c09 Install ld also as ld.bfd, for use with cc -fuse-ld=bfd
PR:		205409 [exp-run]
MFC after:	1 week
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
2015-12-23 14:31:26 +00:00
bdrewery
bb97a3d43c Fix LDADD/DPADD that should be LIBADD.
Sponsored by:	EMC / Isilon Storage Division
2015-12-04 03:17:47 +00:00
bdrewery
5a962dd0c6 Don't override LIB*DIR variables from src.libnames.mk.
In some cases switch to the LIB*SRCDIR value.

These recently were defined in r291327 and r291619.

Sponsored by:	EMC / Isilon Storage Division
2015-12-01 22:20:04 +00:00
bdrewery
fe1ef27d4a META MODE: Update dependencies with 'the-lot' and add missing directories.
This is not properly respecting WITHOUT or ARCH dependencies in target/.
Doing so requires a massive effort to rework targets/ to do so.  A
better approach will be to either include the SUBDIR Makefiles directly
and map to DIRDEPS or just dynamically lookup the SUBDIR.  These lose
the benefit of having a userland/lib, userland/libexec, etc, though and
results in a massive package.  The current implementation of targets/ is
very unmaintainable.

Currently rescue/rescue and sys/modules are still not connected.

Sponsored by:	EMC / Isilon Storage Division
2015-12-01 05:23:19 +00:00
bdrewery
44973a75bb Update dependencies after r291406 added libelf to libkvm.
Unfortunately filemon/meta mode tracks all indirect dependencies here
since ld(1) is reading libelf when linking in libkvm.  Churn would be
reduced if this was able to be limited to direct dependencies.

Sponsored by:	EMC / Isilon Storage Division
2015-12-01 05:18:48 +00:00
jhb
64ba6ed15d Fix a double-semicolon typo in my libkvm changes.
Submitted by:	jmallett
2015-11-30 21:53:24 +00:00
jhb
ab35544b83 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
2015-11-27 18:58:26 +00:00
bdrewery
104fd14e87 Use LIBEXECDIR for /usr/libexec.
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2015-11-26 01:14:40 +00:00
bdrewery
2ab2ea6fbd Replace DPSRCS that work fine in SRCS.
This is so that 'make depend' is not a required build step in these
files.

DPSRCS is overall unneeded.  DPSRCS already contains SRCS, so anything
which can safely be in SRCS should be.  DPSRCS is mostly just a way to
generate files that should not be linked into the final PROG/LIB.  For
headers and grammars it is safe for them to be in SRCS since they will
be excluded during linking and installation.

The only remaining uses of DPSRCS are for generating .c or .o files that
must be built before 'make depend' can run 'mkdep' on the SRCS c files
list.  A semi-proper example is in tests/sys/kern/acct/Makefile where a
checked-in .c file has an #include on a generated .c file.  The
generated .c file should not be linked into the final PROG though since
it is #include'd.  The more proper way here is just to build/link it in
though without DPSRCS.  Another example is in sys/modules/linux/Makefile
where a shell script runs to parse a DPSRCS .o file that should not be
linked into the module.  Beyond those, the need for DPSRCS is largely
unneeded, redundant, and forces 'make depend' to be ran.  Generally,
these Makefiles should avoid the need for DPSRCS and define proper
dependencies for their files as well.

An example of an improper usage and why this matters is in usr.bin/netstat.
nl_defs.h was only in DPSRCS and so was not generated during 'make all',
but only during 'make depend'.  The files including it lacked proper
depenencies on it, which forced running 'make depend' to workaround that
bug.  The 'make depend' target should mostly be used for incremental build
help, not to produce a working build.  This specific example was broken in
the meta build until r287905 since it does not run 'make depend'.

The gnu/lib/libreadline/readline case is fine since bsd.lib.mk has 'OBJS:
SRCS:M*.h' when there is no .depend file.

Sponsored by:	EMC / Isilon Storage Division
MFC after:	1 week
2015-11-25 20:38:17 +00:00
bdrewery
52255645fb META MODE: Don't create .meta files when symlinking sources into the obj directory.
Tracking these leads to situations where meta mode will consider the
file to be out of date if /bin/sh or /bin/ln are newer than the source
file.  There's no reason for meta mode to do this as make is already
handling the rebuild dependency fine.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:44:43 +00:00
bdrewery
e13d6f8b3f META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host.
This both avoids some dependencies on xinstall.host and allows
bootstrapping on older releases to work due to lack of at least 'install -l'
support.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:10:28 +00:00
bdrewery
2995bb889e Fix ld not respecting --sysroot.
ld(1) uses the /usr/libdata/ldscripts when linking. These scripts add in the
default search paths of /lib and /usr/lib via 'SEARCH_DIR("DIR")'. These
need to be prefixed by '=' so that the --sysroot flag is respected. This
is not a problem with buildworld since the TOOLS_PREFIX is baked into the
cross-ld. However it is a problem when trying to use ld(1) with --sysroot
anywhere else as it ends up still reading /lib and /usr/lib despite --sysroot.

The default --sysroot (TARGET_SYSTEM_ROOT) is '/' for /usr/bin/ld.

I found this while building with META MODE with uses only --sysroot with
/usr/bin/ld, and found that libraries that I had not built in its sysroot
directory were leaking in. This didn't happen with ports binutils either.  This
would also impact external compiler support.

Reviewed by:	bapt, brooks
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D4262
2015-11-24 00:49:29 +00:00
rodrigc
0974676404 Include "system.h" for isdir() prototype.
Submitted by:          bofh
Differential Revision: https://reviews.freebsd.org/D2711
2015-11-04 05:38:08 +00:00
zbb
5e057d2908 Use PCB/LR from PCB rather from stack on armv7-gdb
The kernel dump does not store these values on the stack.
Use PCB structure to resolve PC and LR properly.

Submitted by:  Wojciech Macek <wma@semihalf.com>
Reviewed by:   jhb, kib
Obtained from: Semihalf
Sponsored by:  Juniper Networks Inc.
Differential Revision: https://reviews.freebsd.org/D4013
2015-10-30 12:37:40 +00:00
bdrewery
7cf294201e Remove disconnected xditview. 2015-10-21 01:34:51 +00:00
bdrewery
b9b0c1d248 Avoid warning race with creating 'ldscripts' directory during build.
In r204548 the 'rm -f ldscripts' was added likely due to reading the
conditional as 'else it is a file'.  That seems unlikely though and
the more likely case is just that the directory hasn't been created yet.

Because this races with ,ssother scripts, use 'mkdir -p' which is a minimal
modification vs upstream to avoid the warning of 'File exists' if another
script creates it first.  This could replace the 'test -d' as well but
then it's more unneeded change to the upstream script.

Sponsored by:	EMC / Isilon Storage Division
2015-10-16 05:54:41 +00:00
bdrewery
153205e33f Add more SUBDIR_PARALLEL.
MFC after:	3 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-10-15 22:55:08 +00:00
bdrewery
60d1a410e8 Remove directories disconnected since r169718.
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2015-10-15 19:49:09 +00:00
ngie
dd1f618367 Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and
netbsd-tests.test.mk (r289151)

- Eliminate explicit OBJTOP/SRCTOP setting
- Convert all ad hoc NetBSD test integration over to netbsd-tests.test.mk
- Remove unnecessary TESTSDIR setting
- Use SRCTOP where possible for clarity

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Divison
2015-10-12 08:16:03 +00:00
sjg
4bbbb6c4f1 Updated depends 2015-10-07 00:43:05 +00:00
bdrewery
baa76ea3b3 Replace most of the beforeinstall: hack with FILES mechanism.
This now generates the files into the OBJDIR as needed.  Some of the files
are installed directly from the src directory.  Files which are generated
from the src directory are renamed to .in to generate them and avoid
colliding with the checked-in file when CURDIR=OBJDIR.

The remaining beforeinstall: handling still needs to be reworked as it does
not work well with staging for packaging.

MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-09-30 20:47:27 +00:00
jhb
eba92cd905 When XSAVE support was added on amd64, the FPU save area was moved
out of 'struct pcb' and into a variable-sized region after the
structure. The kgdb code currently only reads the pcb. It does not
read in the FPU save area but instead passes stack garbage as the
FPU's saved context. Fixing this would mean determining the proper
size of the area and fetching it. However, this state is not saved
for running CPUs in stoppcbs[], so the callback would also have to
know to ignore those pcbs. Instead, just remove the call since it is
of limited usefulness. It results in kgdb reporting the state of the
FPU/SIMD registers in userland, not their current values in the kernel.
In particular, it does not report the correct state for any code in
the kernel which does use the FPU and would report incorrect values
in that case.

Reviewed by:	kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D3743
2015-09-29 15:47:42 +00:00
bdrewery
79975403f0 Remove redundant .NOPATH.
All of these are already in CLEANFILES which is added to .NOPATH in bsd.obj.mk.

Sponsored by:	EMC / Isilon Storage Division
2015-09-26 14:15:01 +00:00
bdrewery
ccedba20a9 Fix subdir -j build after r287983 by adding missing dependencies.
Sponsored by:	EMC / Isilon Storage Division
2015-09-25 20:31:04 +00:00
bdrewery
2d640e9441 Fix emulation ldscripts not being installed since r131832.
For example, 32bit scripts on 64bit host.

MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-09-25 20:21:45 +00:00
bdrewery
459799dc3d META_MODE: Remove DEP_MACHINE from Makefile.depend files.
This has not been needed since r246865 in projects/bmake.

Sponsored by:	EMC / Isilon Storage Division
2015-09-25 19:44:01 +00:00
bdrewery
f37faa57f7 META_MODE: Remove DEP_RELDIR from Makefile.depend files.
This has not been needed since r284171 in projects/bmake.

Sponsored by:	EMC / Isilon Storage Division
2015-09-25 19:26:08 +00:00
bdrewery
71fccfc30f Add missing CLEANFILES.
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2015-09-24 23:15:24 +00:00
bdrewery
22c9fba62b Fix installation of 32bit libraries after r288074.
FILES is not used when LIBRARIES_ONLY is set, which is used to build and
install the lib32 sysroot.  All of the csu files do quality as "libraries"
for this case so just undefine LIBRARIES_ONLY.

This is still better than the previous realinstall handling as it does
not hook into META_MODE properly.

Sponsored by:	EMC / Isilon Storage Division
2015-09-21 21:44:02 +00:00
bdrewery
5b14fc7575 Use SHAREOWN/SHAREMODE/SHAREGRP rather than LIB* as these are plain ASCII
scripts that the linker can load rather than binary library objects.

Effectively no change.

Suggested by:	hrs
2015-09-21 18:52:52 +00:00
bdrewery
3cec2c22f8 Replace realinstall: and META_MODE staging hacks with FILES mechanism.
This partially reverts r270170 for lib/csu/i386 while retaining the
change for using bsd.lib.mk.

These FILES groups could go into lib/csu/Makefile.inc but I've kept them
in the Makefiles for clarity.

Sponsored by:	EMC / Isilon Storage Division
2015-09-21 18:39:13 +00:00
bdrewery
f44f751406 Replace afterinstall: hack with FILES mechanism.
Sponsored by:	EMC / Isilon Storage Division
2015-09-19 03:53:37 +00:00
bdrewery
deb97713e0 Replace beforeinstall: handling with FILES.
This actually fixes some cases to respect LIBRARIES_ONLY.

Sponsored by:	EMC / Isilon Storage Division
2015-09-18 23:49:32 +00:00
imp
d5b726610a Remove .WAIT hacks and put in specific dependencies. 2015-08-28 16:23:03 +00:00
imp
56adc9c39f Add another .WAIT since sometimes we lose the race. 2015-08-28 04:32:43 +00:00
imp
82b05ac73a Drop a .WAIT into the list. Items later in the list than this depend
on items earlier. Enable parallel builds.
2015-08-26 02:47:11 +00:00
emaste
828e784833 Roll WITHOUT_ELFTOOLCHAIN_TOOLS into WITHOUT_TOOLCHAIN
The option was added only to ease the transition from GNU Binutils to
ELF Tool Chain tools, and that process is now complete (for the viable
replacements). Noting the removal in UPDATING is sufficient as we have
not shipped a release with the option.

Reviewed by:	brooks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3240
2015-08-13 17:50:47 +00:00
emaste
ed3ab640c5 Remove old GNU Binutils tools now provided by ELF Tool Chain
Reviewed by:	bapt, brooks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3238
2015-08-05 18:30:00 +00:00
emaste
32e34ac2b5 Allow ELF Tool Chain elfcopy to be installed as objcopy
ELF Tool Chain elfcopy is nearly a drop-in replacement for GNU objcopy,
but does not currently support PE output which is needed for building
x86 UEFI bits.

Add a src.conf knob to allow installing it as objcopy and set it by
default for aarch64 only, where we don't have a native binutils.

Reviewed by:	bapt
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D2887
2015-07-29 18:45:38 +00:00
bapt
58df5d4a52 Replace GNU RCS ident with a BSD license ident
Rationale: ident(1) is useful out of RCS, lot of scripts are using ident(1) and
failing when base is built WITHOUT_RCS.

This version is:
- fully compatible with RCS 5.7 ident.
- fully compatible with RCS 5.9 ident.
- passes all ident test from GNU RCS 5.9 test suite

This version has support for: svn extension for the Keyword id (double colon and
# before last $)

Différences with GNU RCS ident:
- no long options as found in GNU RCS 5.9 (but not commented there).
- '-V' reports nothing but has been added for compatibility.

Differential Revision:	https://reviews.freebsd.org/D3200
Reviewed by:	pfg
2015-07-26 11:21:36 +00:00
marius
b0e42f970b - Record dependencies of gdb/gdbtui/kgdb on binutils/lib{bfd,iberty,opcodes},
fixing parallel builds.
- Don't build gdb/gdbtui/kgdb or libreadline when MK_BINUTILS is "no" for
  obvious reasons.

MFC after:	3 days
2015-07-19 00:38:19 +00:00
kib
77205a0535 Use single instance of the identical INKERNEL() and PMC_IN_KERNEL()
macros on amd64 and i386.  Move the definition to machine/param.h.
kgdb defines INKERNEL() too, the conflict is resolved by renaming kgdb
version to PINKERNEL().

On i386, correct the lowest kernel address.  After the shared page was
introduced, USRSTACK no longer points to the last user address + 1 [*]

Submitted by:	Oliver Pinter [*]
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-07-02 14:37:21 +00:00
sjg
852129abd1 new depends 2015-06-16 23:37:19 +00:00
sjg
85bb937a38 Hook extra libs to _LIBS so bsd.lib.mk can do its thing
Differential Revision:	D2843
Reviewed by:	imp
2015-06-16 23:36:20 +00:00
bapt
594e07bd1b Revert r284417 it is not necessary anymore 2015-06-15 19:28:07 +00:00
bapt
9fb85ece8b Enforce overwritting SHLIBDIR
Since METAMODE has been added, sys.mk loads bsd.mkopt.mk which ends load loading
bsd.own.mk which then defines SHLIBDIR before all the Makefile.inc everywhere.

This makes /lib being populated again.

Reported by:	many
2015-06-15 15:34:20 +00:00
sjg
f4796e6bf9 Avoid circular dependency with nm 2015-06-14 03:33:27 +00:00
sjg
008d7c831f Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00