Hi Khem,
What should I do to enable multilib in gcc-4.7?
I think at the moment, in gcc-configure-common.inc, it is disabled.
If I were to re-enable it as follows, based on what I've diff'd from the Denx
ELDK repo, what how does the GCCMULTILIB variable evaluate?
-GCCMULTILIB = "--disable-multilib"
+GCCMULTILIB = '${@base_contains("MULTILIB_ARCH_LIST", "${TARGET_ARCH}",
"--enable-multilib", "--disable-multilib",d)}'
I think multilib has to be enabled, no?
In file gcc/config/rs6000/t-ppcos.c
# Multilibs for a powerpc hosted ELF target (linux, SVR4)
MULTILIB_OPTIONS = msoft-float
MULTILIB_DIRNAMES = nof
MULTILIB_EXTRA_OPTS = fPIC mstrict-align
MULTILIB_EXCEPTIONS =
MULTILIB_MATCHES = ${MULTILIB_MATCHES_FLOAT}
Here is the full patch, which I am assuming enables multilib, and get libgcc to
generate the nof libraries to the target:
diff --git a/meta/recipes-devtools/gcc/gcc-configure-common.inc
b/meta/recipes-devtools/gcc/gcc-configure-common.inc
index 908ad3e..a3fa294 100644
--- a/meta/recipes-devtools/gcc/gcc-configure-common.inc
+++ b/meta/recipes-devtools/gcc/gcc-configure-common.inc
@@ -25,7 +25,7 @@ EXTRA_OECONF_PATHS ?= ""
EXTRA_OECONF_INITIAL ?= ""
EXTRA_OECONF_INTERMEDIATE ?= ""
-GCCMULTILIB = "--disable-multilib"
+GCCMULTILIB = '${@base_contains("MULTILIB_ARCH_LIST", "${TARGET_ARCH}",
"--enable-multilib", "--disable-multilib",d)}'
EXTRA_OECONF = "${@['--enable-clocale=generic', ''][d.getVar('USE_NLS', True)
!= 'no']} \
--with-gnu-ld \
diff --git a/meta/recipes-devtools/gcc/libgcc_4.7.bb
b/meta/recipes-devtools/gcc/libgcc_4.7.bb
index c796253..aac81f6 100644
--- a/meta/recipes-devtools/gcc/libgcc_4.7.bb
+++ b/meta/recipes-devtools/gcc/libgcc_4.7.bb
@@ -18,7 +18,9 @@ FILES_${PN} = "${base_libdir}/libgcc*.so.*"
FILES_${PN}-dev = " \
${base_libdir}/libgcc*.so \
${libdir}/${TARGET_SYS}/${BINV}/*crt* \
- ${libdir}/${TARGET_SYS}/${BINV}/libgcc*"
+ ${libdir}/${TARGET_SYS}/${BINV}/libgcc* \
+ ${libdir}/${TARGET_SYS}/${BINV}/nof/crt* \
+ ${libdir}/${TARGET_SYS}/${BINV}/nof/libgcc*"
FILES_libgcov${PKGSUFFIX}-dev = " \
${libdir}/${TARGET_SYS}/${BINV}/libgcov.a \
"
Best regards,
Elvis Dowson_______________________________________________
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