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toolchain: fix installing gconv libs with multi-arch toolchain

PATCH Superseded Yann E. MORIN 2 participants 3 messages Feb 22, 2015 – Mar 17, 2015

v2 of 4 Superseded Latest is v4 →

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#0 lore raw

PATCH v2 1/1 toolchain: fix installing gconv libs with multi-arch toolchain

For a multi-arch toolchain, gconv modules are in a sub-directory named after the machine gcc targets. This is the case, for example, for the Linaro ARM 2014.09 toolchain, which has the gconv modules in (relative to the sysroot):
/usr/lib/arm-linux-gnueabihf/gconv

while the Sourcery CodeBench ARM 2014.05 (non-multi-arch) has them in:
/usr/lib/gconv

So, to catter for both cases, search both paths. We want to favour the machine-specific gconv modules over potentially existing "generic" ones, so we first search that (if it exists) and fallback to looking in the generic location.

---
Changes v1 -> v2:
- also handle the case where the gconv modules list is specified

---
Notes: I'm not too happy about the use of "gcc -dumpmachine", but that's the only solution I found that worked on my use-case. I tried duplicating the ARCH_SUBDIR trick from toolchain-external, but that did not work...

---
 toolchain/toolchain.mk | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)
toolchain/toolchain.mk +19 -8
index 3f9900b..51294c3 100644
@@ -17,28 +17,39 @@ endif
 ifeq ($(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY),y)
 GCONV_LIBS = $(call qstrip,$(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST))
 define COPY_GCONV_LIBS
-	$(Q)if [ -z "$(GCONV_LIBS)" ]; then \
-		$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/gconv/gconv-modules \
-				      $(TARGET_DIR)/usr/lib/gconv/gconv-modules; \
-		$(INSTALL) -m 0644 $(STAGING_DIR)/usr/lib/gconv/*.so \
+	$(Q)machine=$$($(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -dumpmachine); \
+	found_gconv=no; \
+	for d in $${machine} ''; do \
+		[ -d "$(STAGING_DIR)/usr/lib/$${d}/gconv" ] || continue; \
+		found_gconv=yes; \
+		break; \
+	done; \
+	if [ "$${found_gconv}" = "no" ]; then \
+		printf "Unable to find gconv modules\n" >&2; \
+		exit 1; \
+	fi; \
+	if [ -z "$(GCONV_LIBS)" ]; then \
+		$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/$${d}/gconv/gconv-modules \
+				      $(TARGET_DIR)/usr/lib/gconv/gconv-modules && \
+		$(INSTALL) -m 0644 $(STAGING_DIR)/usr/lib/$${d}/gconv/*.so \
 				   $(TARGET_DIR)/usr/lib/gconv \
 		|| exit 1; \
 	else \
 		for l in $(GCONV_LIBS); do \
-			$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/gconv/$${l}.so \
+			$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/$${d}/gconv/$${l}.so \
 					      $(TARGET_DIR)/usr/lib/gconv/$${l}.so \
 			|| exit 1; \
-			$(TARGET_READELF) -d $(STAGING_DIR)/usr/lib/gconv/$${l}.so |\
+			$(TARGET_READELF) -d $(STAGING_DIR)/usr/lib/$${d}/gconv/$${l}.so |\
 			sort -u |\
 			sed -e '/.*(NEEDED).*\[\(.*\.so\)\]$$/!d; s//\1/;' |\
 			while read lib; do \
-				 $(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/gconv/$${lib} \
+				 $(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/$${d}/gconv/$${lib} \
 						       $(TARGET_DIR)/usr/lib/gconv/$${lib} \
 				 || exit 1; \
 			done; \
 		done; \
 		./support/scripts/expunge-gconv-modules "$(GCONV_LIBS)" \
-			<$(STAGING_DIR)/usr/lib/gconv/gconv-modules \
+			<$(STAGING_DIR)/usr/lib/$${d}/gconv/gconv-modules \
 			>$(TARGET_DIR)/usr/lib/gconv/gconv-modules; \
 	fi
 endef
Signature · 1 line
1.9.1
#1 lore raw

PATCH v2 1/1 toolchain: fix installing gconv libs with multi-arch toolchain

Dear Yann E. MORIN,

toolchain/toolchain.mk endif · line 20

Quoted 13 lines · Yann E. MORIN
toolchain/toolchain.mk +1 -4
index 3f9900b..51294c3 100644
@@ -17,28 +17,39 @@ endif
 ifeq ($(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY),y)
 GCONV_LIBS = $(call qstrip,$(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST))
 define COPY_GCONV_LIBS
-	$(Q)if [ -z "$(GCONV_LIBS)" ]; then \
-		$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/gconv/gconv-modules \
-				      $(TARGET_DIR)/usr/lib/gconv/gconv-modules; \
-		$(INSTALL) -m 0644 $(STAGING_DIR)/usr/lib/gconv/*.so \
+	$(Q)machine=$$($(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -dumpmachine); \

Unless I'm mistaken, this piece of code copying gconv libraries is used for both the internal and external toolchain backends, no? If that's the case, then using TOOLCHAIN_EXTERNAL_* here seems wrong, no?

And indeed, the resulting code is not really nice. For sure not worse than the average toolchain-external.mk code :-/

Thomas

Signature · 3 lines
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
#2 lore raw

PATCH v2 1/1 toolchain: fix installing gconv libs with multi-arch toolchain

Thomas, All,

On 2015-03-08 22:48 +0100, Thomas Petazzoni spake thusly:

Quoted 11 lines · Yann E. MORIN
Quoted 10 lines
toolchain/toolchain.mk +0 -1
index 3f9900b..51294c3 100644
@@ -17,28 +17,39 @@ endif
 ifeq ($(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_COPY),y)
 GCONV_LIBS = $(call qstrip,$(BR2_TOOLCHAIN_GLIBC_GCONV_LIBS_LIST))
 define COPY_GCONV_LIBS
-	$(Q)if [ -z "$(GCONV_LIBS)" ]; then \
Quoted 8 lines

toolchain/toolchain.mk endif · line 20

Quoted 4 lines
toolchain/toolchain.mk +1 -3
-		$(INSTALL) -m 0644 -D $(STAGING_DIR)/usr/lib/gconv/gconv-modules \
-				      $(TARGET_DIR)/usr/lib/gconv/gconv-modules; \
-		$(INSTALL) -m 0644 $(STAGING_DIR)/usr/lib/gconv/*.so \
+	$(Q)machine=$$($(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -dumpmachine); \

Unless I'm mistaken, this piece of code copying gconv libraries is used for both the internal and external toolchain backends, no? If that's the case, then using TOOLCHAIN_EXTERNAL_* here seems wrong, no?

Absolutely.

In the meantime, I found out that I could re-use an existing variable, TOOLCHAIN_EXTERNAL_PREFIX which contains exactly what I expected "gcc -dumpmachine" to return. So I've switched to using that, and it "fixes" the use-case for internal toolchains as well as a side effect.

I'll resubmit later today...

Quoted 2 lines

And indeed, the resulting code is not really nice. For sure not worse than the average toolchain-external.mk code :-/

Meh... :-]

Regards,
Yann E. MORIN.

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