[PATCH v4 4/4] tools/build: selftests: Remove some duplicate toolchain definitions

[James Clark]

Try to remove some, but not all duplicate toolchain definitions. In
these instances, their makefiles already include
tools/scripts/Makefile.include which defines these in a consistent way.

STRIP is the only one that was set with an '=', but I don't think it
was significant so that difference can be dropped.

Signed-off-by: James Clark <james.clark@xxxxxxxxxx>
---
 tools/bpf/resolve_btfids/Makefile    | 3 ---
 tools/lib/api/Makefile               | 4 ----
 tools/lib/subcmd/Makefile            | 4 ----
 tools/lib/symbol/Makefile            | 4 ----
 tools/perf/Makefile.perf             | 6 ------
 tools/testing/selftests/bpf/Makefile | 1 -
 6 files changed, 22 deletions(-)

diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile
index 7672208f65e4bc245c03603634d3aa0093a91096..6fdb6302e0a28e9166175822f42cfbb4f4eb24e5 100644
--- a/tools/bpf/resolve_btfids/Makefile
+++ b/tools/bpf/resolve_btfids/Makefile
@@ -20,9 +20,6 @@ HOST_OVERRIDES := AR="$(HOSTAR)" CC="$(HOSTCC)" LD="$(HOSTLD)" ARCH="$(HOSTARCH)
 		  CROSS_COMPILE="" CLANG_CROSS_FLAGS="" EXTRA_CFLAGS="$(HOSTCFLAGS)"
 
 RM      ?= rm
-HOSTCC  ?= gcc
-HOSTLD  ?= ld
-HOSTAR  ?= ar
 HOSTPKG_CONFIG ?= pkg-config
 CROSS_COMPILE =
 
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 8665c799e0fa7155016e8bc6968ebe76a90e1d13..a228fdb5adba8d7f8282688964a9751a06cb0c79 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -9,10 +9,6 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
 #$(info Determined 'srctree' to be $(srctree))
 endif
 
-CC ?= $(CROSS_COMPILE)gcc
-AR ?= $(CROSS_COMPILE)ar
-LD ?= $(CROSS_COMPILE)ld
-
 MAKEFLAGS += --no-print-directory
 
 INSTALL = install
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 8703ab487b68c89406fed575217b57f58e71fb01..9f1ddcf0504d993249991e0af4589db1072465d1 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -9,10 +9,6 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
 #$(info Determined 'srctree' to be $(srctree))
 endif
 
-CC ?= $(CROSS_COMPILE)gcc
-LD ?= $(CROSS_COMPILE)ld
-AR ?= $(CROSS_COMPILE)ar
-
 RM = rm -f
 
 MAKEFLAGS += --no-print-directory
diff --git a/tools/lib/symbol/Makefile b/tools/lib/symbol/Makefile
index 426b845edfaccf56f7c246c281a549c18d0f3919..d692abe8add6e243d7b024fe556cc0983eb4b443 100644
--- a/tools/lib/symbol/Makefile
+++ b/tools/lib/symbol/Makefile
@@ -9,10 +9,6 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
 #$(info Determined 'srctree' to be $(srctree))
 endif
 
-CC ?= $(CROSS_COMPILE)gcc
-AR ?= $(CROSS_COMPILE)ar
-LD ?= $(CROSS_COMPILE)ld
-
 MAKEFLAGS += --no-print-directory
 
 INSTALL = install
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 4d0d7ae02e06b117487a17691c4e62a138428ac5..ca67d4b6fc38367c63123332360ccf27102fc086 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -174,11 +174,6 @@ endef
 
 LD += $(EXTRA_LDFLAGS)
 
-HOSTCC  ?= gcc
-HOSTLD  ?= ld
-HOSTAR  ?= ar
-CLANG   ?= clang
-
 # Some distros provide the command $(CROSS_COMPILE)pkg-config for
 # searching packges installed with Multiarch. Use it for cross
 # compilation if it is existed.
@@ -213,7 +208,6 @@ FIND    = find
 INSTALL = install
 FLEX    ?= flex
 BISON   ?= bison
-STRIP   = strip
 AWK     = awk
 
 # include Makefile.config by default and rule out
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index b642ee489ea64046a9b19852780c3a6f009cbd82..a1a4ae76365955f8f7c1193a03e74bef0d344f9c 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -3,7 +3,6 @@ include ../../../build/Build.include
 include ../../../scripts/Makefile.arch
 include ../../../scripts/Makefile.include
 
-CXX ?= $(CROSS_COMPILE)g++
 OBJCOPY ?= $(CROSS_COMPILE)objcopy
 
 CURDIR := $(abspath .)

-- 
2.34.1