69 lines
3.4 KiB
Diff
69 lines
3.4 KiB
Diff
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Upstream-Status: Inappropriate [embedded specific]
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GCC has internal multilib handling code but it assumes a very specific rigid directory
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layout. The build system implementation of multilib layout is very generic and allows
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complete customisation of the library directories.
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This patch is a partial solution to allow any custom directories to be passed into gcc
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and handled correctly. It forces gcc to use the base_libdir (which is the current
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directory, "."). We need to do this for each multilib that is configured as we don't
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know which compiler options may be being passed into the compiler. Since we have a compiler
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per mulitlib at this point that isn't an issue.
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The one problem is the target compiler is only going to work for the default multlilib at
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this point. Ideally we'd figure out which multilibs were being enabled with which paths
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and be able to patch these entries with a complete set of correct paths but this we
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don't have such code at this point. This is something the target gcc recipe should do
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and override these platform defaults in its build config.
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RP 15/8/11
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Index: gcc-4_6-branch/gcc/config/i386/t-linux64
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===================================================================
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--- gcc-4_6-branch.orig/gcc/config/i386/t-linux64 2011-06-23 15:15:29.000000000 +0100
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+++ gcc-4_6-branch/gcc/config/i386/t-linux64 2011-08-15 13:09:03.772415848 +0100
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@@ -24,8 +24,8 @@
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# MULTILIB_OSDIRNAMES according to what is found on the target.
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MULTILIB_OPTIONS = m64/m32
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-MULTILIB_DIRNAMES = 64 32
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-MULTILIB_OSDIRNAMES = ../lib64 $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)
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+MULTILIB_DIRNAMES = . .
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+MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
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LIBGCC = stmp-multilib
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INSTALL_LIBGCC = install-multilib
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Index: gcc-4_6-branch/gcc/config/mips/t-linux64
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===================================================================
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--- gcc-4_6-branch.orig/gcc/config/mips/t-linux64 2011-08-15 13:06:13.732415763 +0100
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+++ gcc-4_6-branch/gcc/config/mips/t-linux64 2011-08-15 13:09:11.452419446 +0100
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@@ -17,8 +17,8 @@
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# <http://www.gnu.org/licenses/>.
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MULTILIB_OPTIONS = mabi=n32/mabi=32/mabi=64
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-MULTILIB_DIRNAMES = n32 32 64
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-MULTILIB_OSDIRNAMES = ../lib32 ../lib ../lib64
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+MULTILIB_DIRNAMES = . . .
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+MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
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EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o
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Index: gcc-4_6-branch/gcc/config/rs6000/t-linux64
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===================================================================
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--- gcc-4_6-branch.orig/gcc/config/rs6000/t-linux64 2011-08-15 13:06:25.272415822 +0100
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+++ gcc-4_6-branch/gcc/config/rs6000/t-linux64 2011-08-15 13:09:21.062415878 +0100
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@@ -32,11 +32,11 @@
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# MULTILIB_OSDIRNAMES according to what is found on the target.
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MULTILIB_OPTIONS = m64/m32 msoft-float
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-MULTILIB_DIRNAMES = 64 32 nof
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+MULTILIB_DIRNAMES = . . .
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MULTILIB_EXTRA_OPTS = fPIC mstrict-align
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MULTILIB_EXCEPTIONS = m64/msoft-float
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MULTILIB_EXCLUSIONS = m64/!m32/msoft-float
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-MULTILIB_OSDIRNAMES = ../lib64 $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib) nof
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+MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
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MULTILIB_MATCHES = $(MULTILIB_MATCHES_FLOAT)
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softfp_wrap_start := '\#ifndef __powerpc64__'
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