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treewide: remove meaningless assignments in Makefiles 

In Makefiles, $(error ), $(warning ), and $(info ) expand to the empty
string, as explained in the GNU Make manual [1]:
 "The result of the expansion of this function is the empty string."

Therefore, they are no-op except for logging purposes.

$(shell ...) expands to the output of the command. It expands to the
empty string when the command does not print anything to stdout.
Hence, $(shell mkdir ...) is no-op except for creating the directory.

Remove meaningless assignments.

[1]: https://www.gnu.org/software/make/manual/make.html#Make-Control-Functions

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20240221134201.2656908-1-masahiroy@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
This commit is contained in:
Masahiro Yamada 2024-02-21 22:42:01 +09:00 committed by Namhyung Kim
parent 25412c0364
commit c2bd08ba20
10 changed files with 56 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
tools/perf/Makefile.config
View File

@ -193,11 +193,11 @@ endif
include $(srctree)/tools/scripts/utilities.mak
ifeq ($(call get-executable,$(FLEX)),)
dummy := $(error Error: $(FLEX) is missing on this system, please install it)
$(error Error: $(FLEX) is missing on this system, please install it)
endif
ifeq ($(call get-executable,$(BISON)),)
dummy := $(error Error: $(BISON) is missing on this system, please install it)
$(error Error: $(BISON) is missing on this system, please install it)
endif
ifneq ($(NO_LIBTRACEEVENT),1)
@ -428,46 +428,46 @@ else
LIBC_SUPPORT := 1
endif
ifeq ($(LIBC_SUPPORT),1)
msg := $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
$(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
else
ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
msg := $(error No libasan found, please install libasan);
$(error No libasan found, please install libasan)
endif
endif
ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
msg := $(error No libubsan found, please install libubsan);
$(error No libubsan found, please install libubsan)
endif
endif
ifneq ($(filter s% -static%,$(LDFLAGS),),)
msg := $(error No static glibc found, please install glibc-static);
$(error No static glibc found, please install glibc-static)
else
msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
$(error No gnu/libc-version.h found, please install glibc-dev[el])
endif
endif
else
ifndef NO_LIBDW_DWARF_UNWIND
ifneq ($(feature-libdw-dwarf-unwind),1)
NO_LIBDW_DWARF_UNWIND := 1
msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
$(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR)
endif
endif
ifneq ($(feature-dwarf), 1)
ifndef NO_DWARF
msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
$(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev)
NO_DWARF := 1
endif
else
ifneq ($(feature-dwarf_getlocations), 1)
msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
$(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157)
else
CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
endif # dwarf_getlocations
ifneq ($(feature-dwarf_getcfi), 1)
msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.142);
$(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.142)
else
CFLAGS += -DHAVE_DWARF_CFI_SUPPORT
endif # dwarf_getcfi
@ -515,7 +515,7 @@ ifdef CORESIGHT
endif
endif
else
dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
$(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
endif
endif
@ -541,7 +541,7 @@ ifndef NO_LIBELF
ifeq ($(feature-libelf-gelf_getnote), 1)
CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
else
msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
$(warning gelf_getnote() not found on libelf, SDT support disabled)
endif
ifeq ($(feature-libelf-getshdrstrndx), 1)
@ -558,7 +558,7 @@ ifndef NO_LIBELF
ifndef NO_DWARF
ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
$(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled)
NO_DWARF := 1
else
CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
@ -580,11 +580,11 @@ ifndef NO_LIBELF
$(call detected,CONFIG_LIBBPF)
$(call detected,CONFIG_LIBBPF_DYNAMIC)
else
dummy := $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel);
$(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
endif
else
ifeq ($(NO_ZLIB), 1)
dummy := $(warning Warning: Statically building libbpf not possible as zlib is missing)
$(warning Warning: Statically building libbpf not possible as zlib is missing)
NO_LIBBPF := 1
else
# Libbpf will be built as a static library from tools/lib/bpf.
@ -599,7 +599,7 @@ endif # NO_LIBELF
ifndef NO_SDT
ifneq ($(feature-sdt), 1)
msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
$(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
NO_SDT := 1;
else
CFLAGS += -DHAVE_SDT_EVENT
@ -641,13 +641,13 @@ ifndef NO_LIBUNWIND
have_libunwind = 1
$(call feature_check,libunwind-debug-frame-aarch64)
ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
msg := $(warning No debug_frame support found in libunwind-aarch64);
$(warning No debug_frame support found in libunwind-aarch64)
CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
endif
endif
ifneq ($(feature-libunwind), 1)
msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
$(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR)
NO_LOCAL_LIBUNWIND := 1
else
have_libunwind := 1
@ -663,7 +663,7 @@ endif
ifndef NO_LIBBPF
ifneq ($(feature-bpf), 1)
msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
$(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
NO_LIBBPF := 1
endif
endif
@ -676,28 +676,28 @@ endif
ifeq ($(BUILD_BPF_SKEL),1)
ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
dummy := $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
$(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
BUILD_BPF_SKEL := 0
else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
dummy := $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
$(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
BUILD_BPF_SKEL := 0
else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
dummy := $(warning Warning: Disabled BPF skeletons as libbpf is required)
$(warning Warning: Disabled BPF skeletons as libbpf is required)
BUILD_BPF_SKEL := 0
else ifeq ($(call get-executable,$(CLANG)),)
dummy := $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
$(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
BUILD_BPF_SKEL := 0
else
CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
dummy := $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
$(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
BUILD_BPF_SKEL := 0
endif
endif
ifeq ($(BUILD_BPF_SKEL),1)
$(call feature_check,clang-bpf-co-re)
ifeq ($(feature-clang-bpf-co-re), 0)
dummy := $(warning Warning: Disabled BPF skeletons as clang is too old)
$(warning Warning: Disabled BPF skeletons as clang is too old)
BUILD_BPF_SKEL := 0
endif
endif
@ -717,7 +717,7 @@ dwarf-post-unwind-text := BUG
# setup DWARF post unwinder
ifdef NO_LIBUNWIND
ifdef NO_LIBDW_DWARF_UNWIND
msg := $(warning Disabling post unwind, no support found.);
$(warning Disabling post unwind, no support found.)
dwarf-post-unwind := 0
else
dwarf-post-unwind-text := libdw
@ -743,7 +743,7 @@ ifndef NO_LOCAL_LIBUNWIND
ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
$(call feature_check,libunwind-debug-frame)
ifneq ($(feature-libunwind-debug-frame), 1)
msg := $(warning No debug_frame support found in libunwind);
$(warning No debug_frame support found in libunwind)
CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
endif
else
@ -772,7 +772,7 @@ ifneq ($(NO_LIBTRACEEVENT),1)
ifndef NO_LIBAUDIT
$(call feature_check,libaudit)
ifneq ($(feature-libaudit), 1)
msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
$(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev)
NO_LIBAUDIT := 1
else
CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
@ -785,7 +785,7 @@ endif
ifndef NO_LIBCRYPTO
ifneq ($(feature-libcrypto), 1)
msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
$(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
NO_LIBCRYPTO := 1
else
CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
@ -797,7 +797,7 @@ endif
ifndef NO_SLANG
ifneq ($(feature-libslang), 1)
ifneq ($(feature-libslang-include-subdir), 1)
msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
$(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
NO_SLANG := 1
else
CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
@ -815,7 +815,7 @@ ifdef GTK2
FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
$(call feature_check,gtk2)
ifneq ($(feature-gtk2), 1)
msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
$(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
NO_GTK2 := 1
else
$(call feature_check,gtk2-infobar)
@ -844,7 +844,7 @@ else
ifneq ($(feature-libperl), 1)
CFLAGS += -DNO_LIBPERL
NO_LIBPERL := 1
msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
$(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev)
else
LDFLAGS += $(PERL_EMBED_LDFLAGS)
EXTLIBS += $(PERL_EMBED_LIBADD)
@ -859,7 +859,7 @@ endif
ifeq ($(feature-timerfd), 1)
CFLAGS += -DHAVE_TIMERFD_SUPPORT
else
msg := $(warning No timerfd support. Disables 'perf kvm stat live');
$(warning No timerfd support. Disables 'perf kvm stat live')
endif
disable-python = $(eval $(disable-python_code))
@ -893,7 +893,7 @@ else
PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
else
msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
$(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
endif
CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
$(call detected,CONFIG_LIBPYTHON)
@ -952,7 +952,7 @@ ifdef BUILD_NONDISTRO
ifeq ($(feature-libbfd-buildid), 1)
CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
else
msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
$(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
endif
endif
@ -984,7 +984,7 @@ ifndef NO_LZMA
EXTLIBS += -llzma
$(call detected,CONFIG_LZMA)
else
msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
$(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
NO_LZMA := 1
endif
endif
@ -997,7 +997,7 @@ ifndef NO_LIBZSTD
EXTLIBS += -lzstd
$(call detected,CONFIG_ZSTD)
else
msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
$(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
NO_LIBZSTD := 1
endif
endif
@ -1008,7 +1008,7 @@ ifndef NO_LIBCAP
EXTLIBS += -lcap
$(call detected,CONFIG_LIBCAP)
else
msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
$(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev)
NO_LIBCAP := 1
endif
endif
@ -1021,11 +1021,11 @@ endif
ifndef NO_LIBNUMA
ifeq ($(feature-libnuma), 0)
msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
$(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
NO_LIBNUMA := 1
else
ifeq ($(feature-numa_num_possible_cpus), 0)
msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
$(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8)
NO_LIBNUMA := 1
else
CFLAGS += -DHAVE_LIBNUMA_SUPPORT
@ -1080,7 +1080,7 @@ ifndef NO_LIBBABELTRACE
EXTLIBS += -lbabeltrace-ctf
$(call detected,CONFIG_LIBBABELTRACE)
else
msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
$(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
endif
endif
@ -1099,7 +1099,7 @@ endif
ifndef NO_AUXTRACE
ifeq ($(SRCARCH),x86)
ifeq ($(feature-get_cpuid), 0)
msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
$(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
NO_AUXTRACE := 1
endif
endif
@ -1157,7 +1157,7 @@ ifndef NO_LIBPFM4
ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
$(call detected,CONFIG_LIBPFM4)
else
msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
$(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
endif
endif
@ -1175,7 +1175,7 @@ ifneq ($(NO_LIBTRACEEVENT),1)
CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
$(call detected,CONFIG_LIBTRACEEVENT)
else
dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
$(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
endif
$(call feature_check,libtracefs)

4
tools/perf/Makefile.perf
View File

@ -485,7 +485,7 @@ drm_hdr_dir := $(srctree)/tools/include/uapi/drm
drm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/drm_ioctl.sh
# Create output directory if not already present
_dummy := $(shell [ -d '$(beauty_ioctl_outdir)' ] || mkdir -p '$(beauty_ioctl_outdir)')
$(shell [ -d '$(beauty_ioctl_outdir)' ] || mkdir -p '$(beauty_ioctl_outdir)')
$(drm_ioctl_array): $(drm_hdr_dir)/drm.h $(drm_hdr_dir)/i915_drm.h $(drm_ioctl_tbl)
$(Q)$(SHELL) '$(drm_ioctl_tbl)' $(drm_hdr_dir) > $@
@ -675,7 +675,7 @@ tests-coresight-targets-clean:
all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS) tests-coresight-targets
# Create python binding output directory if not already present
_dummy := $(shell [ -d '$(OUTPUT)python' ] || mkdir -p '$(OUTPUT)python')
$(shell [ -d '$(OUTPUT)python' ] || mkdir -p '$(OUTPUT)python')
$(OUTPUT)python/perf$(PYTHON_EXTENSION_SUFFIX): $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBPERF) $(LIBSUBCMD)
$(QUIET_GEN)LDSHARED="$(CC) -pthread -shared" \

2
tools/perf/arch/arm64/Makefile
View File

@ -18,7 +18,7 @@ sysprf := $(srctree)/tools/perf/arch/arm64/entry/syscalls/
systbl := $(sysprf)/mksyscalltbl
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sysdef) $(systbl)
$(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@

2
tools/perf/arch/loongarch/Makefile
View File

@ -17,7 +17,7 @@ sysprf := $(srctree)/tools/perf/arch/loongarch/entry/syscalls/
systbl := $(sysprf)/mksyscalltbl
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sysdef) $(systbl)
$(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@

2
tools/perf/arch/mips/Makefile
View File

@ -11,7 +11,7 @@ sysdef := $(sysprf)/syscall_n64.tbl
systbl := $(sysprf)/mksyscalltbl
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sysdef) $(systbl)
$(Q)$(SHELL) '$(systbl)' $(sysdef) > $@

2
tools/perf/arch/powerpc/Makefile
View File

@ -19,7 +19,7 @@ sysdef := $(sysprf)/syscall.tbl
systbl := $(sysprf)/mksyscalltbl
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header64): $(sysdef) $(systbl)
$(Q)$(SHELL) '$(systbl)' '64' $(sysdef) > $@

2
tools/perf/arch/s390/Makefile
View File

@ -17,7 +17,7 @@ sysdef := $(sysprf)/syscall.tbl
systbl := $(sysprf)/mksyscalltbl
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sysdef) $(systbl)
$(Q)$(SHELL) '$(systbl)' $(sysdef) > $@

2
tools/perf/arch/x86/Makefile
View File

@ -17,7 +17,7 @@ sys := $(srctree)/tools/perf/arch/x86/entry/syscalls
systbl := $(sys)/syscalltbl.sh
# Create output directory if not already present
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sys)/syscall_64.tbl $(systbl)
$(Q)$(SHELL) '$(systbl)' $(sys)/syscall_64.tbl 'x86_64' > $@

2
tools/scripts/Makefile.include
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
ifneq ($(O),)
ifeq ($(origin O), command line)
dummy := $(if $(shell cd $(PWD); test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
$(if $(shell cd $(PWD); test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
ABSOLUTE_O := $(shell cd $(PWD); cd $(O) ; pwd)
OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
COMMAND_O := O=$(ABSOLUTE_O)

4
tools/testing/selftests/kvm/Makefile
View File

@ -285,7 +285,7 @@ EXTRA_CLEAN += $(GEN_HDRS) \
$(TEST_GEN_OBJ) \
cscope.*
x := $(shell mkdir -p $(sort $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
$(shell mkdir -p $(sort $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
$(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS)
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
@ -298,7 +298,7 @@ $(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS)
$(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@
x := $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
$(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
$(SPLIT_TESTS_OBJS): $(GEN_HDRS)
$(TEST_GEN_PROGS): $(LIBKVM_OBJS)
$(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)