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Subject[PATCH v2 0/4] objtool build improvements
From
Install libsubcmd and then get headers from there, this avoids
inadvertent dependencies on things in tools/lib. Fix V=1
support. Clean up how HOSTCC is used to override CC to avoid CFLAGS
being set for say gcc, and then CC being overridden to clang. Support
HOSTCFLAGS as a make option.

v2. Include required "tools lib subcmd: Add install target" that is
already in Arnaldo's tree:
https://lore.kernel.org/lkml/20221109184914.1357295-3-irogers@google.com/
https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/commit/?h=perf/core&id=630ae80ea1dd253609cb50cff87f3248f901aca3
When building libsubcmd.a from objtool's Makefile, clear the
subdir to avoid it being appended onto OUTPUT and breaking the
build.

Ian Rogers (4):
tools lib subcmd: Add install target
objtool: Install libsubcmd in build
objtool: Properly support make V=1
objtool: Alter how HOSTCC is forced

tools/lib/subcmd/Makefile | 49 ++++++++++++++++++++++++++++
tools/objtool/Build | 2 --
tools/objtool/Makefile | 68 +++++++++++++++++++++++++++------------
3 files changed, 97 insertions(+), 22 deletions(-)

--
2.38.1.584.g0f3c55d4c2-goog

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