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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-02-04 09:48:47 -0200
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-02-04 09:48:47 -0200
commit1695c7737655241e1773bdddc93e82c22d8d1584 (patch)
treedbf5bc7b0f53ba08d89748faab4044a00a916328
parentdc98b8f5a9e876cbe9a778903c22bb196c43bb3c (diff)
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abilist-pattern configurability
This patch creates implicit rules to match the abifiles if abilist-pattern is defined in the architecture Makefile. This allows machine specific Makefiles to define different abifiles names (for instance *-le.abilist for powerpc64le).
-rw-r--r--ChangeLog11
-rw-r--r--Makerules32
-rw-r--r--sysdeps/powerpc/Makefile4
3 files changed, 47 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index f9f89fcc12..d9fa673bc0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2014-02-04 Roland McGrath <roland@hack.frob.com>
+ Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+
+ * sysdeps/powerpc/Makefile [$(config-machine) ends with 'le']
+ (abilist-pattern): New variable, set to %-le.abilist.
+
+ * Makerules (abilist-pattern): New variable.
+ (vpath): Use $(abilist-pattern) in place of %.abilist.
+ (check-abi-% pattern rule): Likewise.
+ (check-abi, update-abi): Likewise.
+
2014-02-04 Eric Wong <normalperson@yhbt.net>
* sysdeps/x86_64/fpu/libm-test-ulps: Update.
diff --git a/Makerules b/Makerules
index b7e556ff5f..b46b09b369 100644
--- a/Makerules
+++ b/Makerules
@@ -1175,6 +1175,14 @@ ifeq ($(build-shared),yes)
LC_ALL=C $(OBJDUMP) --dynamic-syms $< > $@T
mv -f $@T $@
+# A sysdeps/.../Makefile can set abilist-pattern to something like
+# %-foo.abilist to look for libc-foo.abilist instead of libc.abilist.
+# This makes sense if multiple ABIs can be most cleanly supported by a
+# configuration without using separate sysdeps directories for each.
+ifdef abilist-pattern
+vpath $(abilist-pattern) $(+sysdep_dirs)
+endif
+
vpath %.abilist $(+sysdep_dirs)
# The .PRECIOUS rule prevents the files built by an implicit rule whose
@@ -1184,18 +1192,42 @@ vpath %.abilist $(+sysdep_dirs)
.PRECIOUS: %.symlist
generated += $(extra-libs:=.symlist)
+ifdef abilist-pattern
+check-abi-%: $(common-objpfx)config.make $(abilist-pattern) $(objpfx)%.symlist
+ $(check-abi-pattern)
+check-abi-%: $(common-objpfx)config.make $(abilist-pattern) \
+ $(common-objpfx)%.symlist
+ $(check-abi-pattern)
+endif
check-abi-%: $(common-objpfx)config.make %.abilist $(objpfx)%.symlist
$(check-abi)
check-abi-%: $(common-objpfx)config.make %.abilist $(common-objpfx)%.symlist
$(check-abi)
+define check-abi-pattern
+ diff -p -U 0 $(filter $(abilist-pattern),$^) $(filter %.symlist,$^)
+endef
define check-abi
diff -p -U 0 $(filter %.abilist,$^) $(filter %.symlist,$^)
endef
+ifdef abilist-pattern
+update-abi-%: $(objpfx)%.symlist $(abilist-pattern)
+ $(update-abi-pattern)
+update-abi-%: $(common-objpfx)%.symlist $(abilist-pattern)
+ $(update-abi-pattern)
+endif
update-abi-%: $(objpfx)%.symlist %.abilist
$(update-abi)
update-abi-%: $(common-objpfx)%.symlist %.abilist
$(update-abi)
+define update-abi-pattern
+@if cmp -s $^ 2> /dev/null; \
+ then \
+ echo '+++ $(filter $(abilist-pattern),$^) is unchanged'; \
+ else cp -f $^; \
+ echo '*** Now check $(filter $(abilist-pattern),$^) changes for correctness ***'; \
+ fi
+endef
define update-abi
@if cmp -s $^ 2> /dev/null; \
then \
diff --git a/sysdeps/powerpc/Makefile b/sysdeps/powerpc/Makefile
index f75e62523c..b11edd77bd 100644
--- a/sysdeps/powerpc/Makefile
+++ b/sysdeps/powerpc/Makefile
@@ -27,3 +27,7 @@ ifeq ($(subdir),misc)
sysdep_headers += sys/platform/ppc.h
tests += test-gettimebase
endif
+
+ifneq (,$(filter %le,$(config-machine)))
+abilist-pattern = %-le.abilist
+endif