to dtrace(1) invocations during a build. This change includes -C in the
default flags, which has dtrace(1) run input scripts through the
preprocessor. While here, sort the definitions of CP and CPP in sys.mk.
Differential Revision: https://reviews.freebsd.org/D2204
Reviewed by: imp, rpaulo (previous revision)
probes to userland programs and libraries without also needing to link
libelf.
dtrace -G places the __SUNW_dof symbol at the beginning of the DOF (DTrace
probe and provider metdata) section in the generated object file; drti.o
now just uses this symbol to locate the section. A complication occurs
when multiple dtrace-generated object files are linked together, since the
__SUNW_dof symbol defined in each file is global. This is handled by
using objcopy(1) to convert __SUNW_dof to a local symbol once drti.o has
been linked with the generated object file. Upstream, this is done using a
linker feature not present in GNU ld.
Differential Revision: https://reviews.freebsd.org/D1757
Reviewed by: rpaulo
MFC after: 1 month
Relnotes: yes
when building with an external gcc, we want to be able to pass the path to
the libc++ headers so dependencies are correctly computed for C++ source files.
Add a DEPFLAGS for that purpose
Reviewed by: imp
* anchor search strings appropriately,
* use .ALLSRC to pass the full path to the D script to dtrace(1),
* don't insert the auto-generated header into SRCS - it doesn't
accomplish anything, and we end up having to remove it from OBJS anyway.
Reviewed by: rpaulo
Differential Revision: https://reviews.freebsd.org/D978
MFC after: 3 weeks
Sponsored by: EMC / Isilon Storage Division
- Reduce DPADD and LDADD in checkdpadd to -l<foo>
- Skip over -Wl,[es]*-group because -Wl,--end-group and
-Wl,--start-group might be required to properly link objects (see
usr.bin/clang/lldb as an example)
This caveat has been present for a while with some components of
the build. However, these false positives were made more more apparent
after r269648.
Phabric: D635
Reviewed by: jmmv (an earlier version)
PR: 192730
MFC after: 2 weeks
the build starts.
This adds a new variable DHDRS that contains a list of all DTrace
header files. Then, we use the beforedepend hook to make sure the
heaeder files are built.
Introduce a beforebuild dependency (from projects/bmake) based on
feedback from Simon J. Gerraty. This lets us generate the header
files without running make depend.
Reviewed by: sjg, imp
MFC after: 3 days
This doesn't work like I expected and the if clause is never matched.
It turns out that the problem with the older make is unrelated.
MFC after: 3 days
* Include OBJDIR to make sure the generated file is found;
* Simplify the definition of OBJS;
* Add targets for shared objects and for profiled objects.
MFC after: 3 days
1. Have the resulting C file depend on the resulting H
file as it should be. Touch the C file to make sure
the C file is newer than the H file to keep make
happy.
2. Apply the same fix to the other instance of .ORDER,
missed in the previous commit.
1. Don't do upgrade_checks when using bmake. As long as we have WITH_BMAKE,
there's a bootstrap complication in ths respect. Avoid it. Make the
necessary changes to have upgrade_checks work wth bmake anyway.
2. Remove the use of -E. It's not needed in our build because we use ?= for
the respective variables, which means that we'll take the environment
value (if any) anyway.
3. Properly declare phony targets as phony as bmake is a lot smarter (and
thus agressive) about build avoidance.
4. Make sure CLEANFILES is complete and use it on .NOPATH. bmake is a lot
smarter about build avoidance and should not find files we generate in
the source tree. We should not have files in the repository we want to
generate, but this is an easier way to cross this hurdle.
5. Have behavior under bmake the same as it is under make with respect to
halting when sub-commands fail. Add "set -e" to compound commands so
that bmake is informed when sub-commands fail.
6. Make sure crunchgen uses the same make as the rest of the build. This
is important when the make utility isn't called make (but bmake for
example).
7. While here, add support for using MAKEOBJDIR to set the object tree
location. It's the second alternative bmake looks for when determining
the actual object directory (= .OBJDIR).
Submitted by: Simon Gerraty <sjg@juniper.net>
Submitted by: John Van Horne <jvanhorne@juniper.net>
This support has not worked for several years, and is not likely to work
again, unless Intel decides to release a native FreeBSD version of their
compiler. ;)
Makefiles or *.mk files, use ${CC:T:Mfoo} instead, so only the basename
of the compiler command (excluding any arguments) is considered.
This allows you to use, for example, CC="/nondefault/path/clang -xxx",
and still have the various tests in bsd.*.mk identify your compiler as
clang correctly.
ICC if cases were also changed.
Submitted by: Dimitry Andric <dimitry at andric.com>
gnu/usr.bin/cc/libiberty first defines the PREFIX macro, and then
undefines it again, so mkdep with clang complains.
Submitted by: Dimitry Andric <dimitry at andric.com>
Reviewed by: ru
were recently), a simple 'make cleandepend; make depend' is sufficient
to keep the tree buildable after a cvs update when doing incremental
builds.
However, kdump and truss use a script which searches for header files
that define ioctls, and generates C code that includes them. This
script will usually not need updating when a header file is removed,
so the normal dependency mechanism will not realize that it needs to
be re-run. One is therefore left with code that references dead files
but will only be removed by a full 'make clean', which defeats the
purpose of incremental builds.
To work around this, modify the cleandepend target in bsd.dep.mk to
also remove any files listed in a new variable named CLEANDEPFILES,
and modify kdump's and truss's Makefiles accordingly.
MFC after: 2 weeks
Intel C/C++ compiler (lang/icc) to build the kernel.
The icc CPUTYPE CFLAGS use icc v7 syntax, icc v8 moans about them, but
doesn't abort. They also produce CPU specific code (new instructions
of the CPU, not only CPU specific scheduling), so if you get coredumps
with signal 4 (SIGILL, illegal instruction) you've used the wrong
CPUTYPE.
Incarnations of this patch survive gcc compiles and my make universe.
I use it on my desktop.
To use it update share/mk, add
/usr/local/intel/compiler70/ia32/bin (icc v7, works)
or
/usr/local/intel_cc_80/bin (icc v8, doesn't work)
to your PATH, make sure you have a new kernel compile directory
(e.g. MYKERNEL_icc) and run
CFLAGS="-O2 -ip" CC=icc make depend
CFLAGS="-O2 -ip" CC=icc make
in it.
Don't compile with -ipo, the build infrastructure uses ld directly to
link the kernel and the modules, but -ipo needs the link step to be
performed with Intel's linker.
Problems with icc v8:
- panic: npx0 cannot be emulated on an SMP system
- UP: first start of /bin/sh results in a FP exception
Parts of this commit contains suggestions or submissions from
Marius Strobl <marius@alchemy.franken.de>.
Reviewed by: silence on -arch
Submitted by: netchild
missing and there are multiple choices using multiple inference
(suffix transformation) rules.
This is known to fix compilation of s_log1p.o in lib/msun on i386,
as otherwise it attempted to use s_log1p.S as the source (which is
marked broken) instead of legal s_log1p.c which is in CFLAGS. The
normal case where .depend file exists is not affected.
Reviewed by: bde
needed for generating dependencies. SRCS are always part of it,
and normally only they.
This can be useful in some random cases where it's necessary to
have something in .depend that isn't part of SRCS. This will be
used to replace a hack in lib/libpam/libpam/Makefile.
form became unnecessary with the bsd.prog.mk,v 1.69 change.
- Eliminated duplicate y.tab.h in SRCS.
Reviewed by: bde
- Complementary to the said bsd.prog.mk change, use the fact
that inner .for loops are not real loops but a tricky form
of a local macro for the outer loop's variable, and switch
to using faster variable modifiers to replace extensions.
This is simpler, and is easy to do now that make(1) supports substituting
regexps. Fixed missing '$' anchor in the regexp. Use less cryptic names
for temporary variables.
Submitted by: ru (early version)
Reviewed by: ru
to creating the tags file using ctags(1). Defaults to "gtags".
Made GTAGSFLAGS and HTAGSFLAGS overrideable, added CTAGSFLAGS.
Folded bsd.prog.mk version of `tags' into bsd.dep.mk.
PR: bin/42852
