Messages in this thread | | | Date | Thu, 5 Jan 2023 01:01:52 -0800 | Subject | [PATCH v3 0/3] objtool build improvements | From | Ian Rogers <> |
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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.
v3. Is a rebase that removes the merged "tools lib subcmd: Add install target" patch. In: https://lore.kernel.org/lkml/CAKwvOd=kgXmpfbVa1wiEvwL0tX3gu+dDTGi-HEiRXSojwCLRrg@mail.gmail.com/ Nick rightly points out that: WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs became: WARNINGS := -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs losing the EXTRA_WARNINGS which v3 now adds back in. Previous testing had added the warnings to the end rather than the beginning, thereby causing unexpected build issues that aren't present in v3. 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 (3): objtool: Install libsubcmd in build objtool: Properly support make V=1 objtool: Alter how HOSTCC is forced
tools/objtool/Build | 2 -- tools/objtool/Makefile | 66 ++++++++++++++++++++++++++++++------------ 2 files changed, 47 insertions(+), 21 deletions(-)
-- 2.39.0.314.g84b9a713c41-goog
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