Build gdb with <arch>-linux-uclibc explicitly (when necessary) in case it

needs to be aware.  To do this, we grab a (patched) copy of config.sub
from gcc.
Also specify some configure vars which aren't tested when cross compiling.

make/gdb.mk

@@ -8,6 +8,7 @@ GDB_SITE:=ftp://ftp.gnu.org/gnu/gdb/
 GDB_DIR:=$(BUILD_DIR)/gdb-5.3
 GDB_SOURCE:=gdb-5.3.tar.gz
 GDB_PATCH:=$(SOURCE_DIR)/gdb.patch
+GDB_UCLIBC_PATCH:=$(SOURCE_DIR)/gdb-5.3-uclibc.patch
 
 $(DL_DIR)/$(GDB_SOURCE):
 	$(WGET) -P $(DL_DIR) $(GDB_SITE)/$(GDB_SOURCE)
@@ -15,18 +16,27 @@ $(DL_DIR)/$(GDB_SOURCE):
 $(GDB_DIR)/.unpacked: $(DL_DIR)/$(GDB_SOURCE) $(GDB_PATCH)
 	gunzip -c $(DL_DIR)/$(GDB_SOURCE) | tar -C $(BUILD_DIR) -xvf -
 	cat $(GDB_PATCH) | patch -p1 -d $(GDB_DIR)
+	cat $(GDB_UCLIBC_PATCH) | patch -p1 -d $(GDB_DIR)
 	touch  $(GDB_DIR)/.unpacked
 
 $(GDB_DIR)/.configured: $(GDB_DIR)/.unpacked
+	# Copy a config.sub from gcc.  This is only necessary until
+	# gdb's config.sub supports <arch>-linux-uclibc tuples.
+	cp $(GCC_DIR)/config.sub $(GDB_DIR)
+	cp $(GCC_DIR)/config.sub $(GDB_DIR)/readline/support/
 	(cd $(GDB_DIR); rm -rf config.cache; \
 		$(TARGET_CONFIGURE_OPTS) \
 		CFLAGS="$(TARGET_CFLAGS)" \
 		ac_cv_type_uintptr_t=yes \
 		gt_cv_func_gettext_libintl=yes \
 		ac_cv_func_dcgettext=yes \
+		gdb_cv_func_sigsetjmp=yes \
+		bash_cv_func_strcoll_broken=no \
+		bash_cv_must_reinstall_sighandlers=no \
+		bash_cv_func_sigsetjmp=present \
 		./configure \
-		--target=$(GNU_TARGET_NAME) \
-		--host=$(GNU_TARGET_NAME) \
+		--target=$(REAL_GNU_TARGET_NAME) \
+		--host=$(REAL_GNU_TARGET_NAME) \
 		--prefix=/usr \
 		--exec-prefix=/usr \
 		--bindir=/usr/bin \

sources/gdb-5.3-uclibc.patch

@@ -0,0 +1,154 @@
+diff -urN gdb-5.3/bfd/config.bfd gdb-5.3-new/bfd/config.bfd
+--- gdb-5.3/bfd/config.bfd	2002-09-05 15:34:35.000000000 -0500
++++ gdb-5.3-new/bfd/config.bfd	2004-01-11 06:25:31.000000000 -0600
+@@ -83,7 +83,7 @@
+     targ_defvec=ecoffalpha_little_vec
+     targ_selvecs=bfd_elf64_alpha_vec
+     ;;
+-  alpha*-*-linux-gnu* | alpha*-*-elf*)
++  alpha*-*-linux-gnu* | alpha*-*-linux-uclibc* | alpha*-*-elf*)
+     targ_defvec=bfd_elf64_alpha_vec
+     targ_selvecs=ecoffalpha_little_vec
+     ;;
+@@ -97,7 +97,8 @@
+     targ_defvec=bfd_elf64_ia64_aix_little_vec
+     targ_selvecs="bfd_elf64_ia64_aix_big_vec bfd_efi_app_ia64_vec"
+     ;;
+-  ia64*-*-freebsd* | ia64*-*-netbsd* | ia64*-*-linux-gnu* | ia64*-*-elf*)
++  ia64*-*-freebsd* | ia64*-*-netbsd* | ia64*-*-linux-gnu* | \
++  ia64*-*-linux-uclibc* | ia64*-*-elf*)
+     targ_defvec=bfd_elf64_ia64_little_vec
+     targ_selvecs="bfd_elf64_ia64_big_vec bfd_efi_app_ia64_vec"
+     ;;
+@@ -176,11 +177,12 @@
+     targ_defvec=bfd_elf32_littlearm_vec
+     targ_selvecs=bfd_elf32_bigarm_vec
+     ;;
+-  armeb-*-elf | arm*b-*-linux-gnu*)
++  armeb-*-elf | arm*b-*-linux-gnu* | arm*b-*-linux-uclibc*)
+     targ_defvec=bfd_elf32_bigarm_vec
+     targ_selvecs=bfd_elf32_littlearm_vec
+     ;;
+-  arm-*-elf | arm-*-freebsd* | arm*-*-linux-gnu* | arm*-*-conix* | arm*-*-uclinux*)
++  arm-*-elf | arm-*-freebsd* | arm*-*-linux-gnu* | arm*-*-linux-uclibc* | \
++  arm*-*-conix* | arm*-*-uclinux*)
+     targ_defvec=bfd_elf32_littlearm_vec
+     targ_selvecs=bfd_elf32_bigarm_vec
+     ;;
+@@ -313,7 +315,7 @@
+     ;;
+ 
+ #ifdef BFD64
+-  hppa*64*-*-linux-gnu*)
++  hppa*64*-*-linux-gnu* | hppa*64*-*-linux-uclibc*)
+     targ_defvec=bfd_elf64_hppa_linux_vec
+     targ_selvecs=bfd_elf64_hppa_vec
+     ;;
+@@ -324,7 +326,7 @@
+     ;;
+ #endif
+ 
+-  hppa*-*-linux-gnu*)
++  hppa*-*-linux-gnu* | hppa*-*-linux-uclibc*)
+     targ_defvec=bfd_elf32_hppa_linux_vec
+     targ_selvecs=bfd_elf32_hppa_vec
+     ;;
+@@ -424,7 +426,7 @@
+     targ_selvecs=bfd_elf32_i386_vec
+     targ_underscore=yes
+     ;;
+-  i[3456]86-*-linux-gnu*)
++  i[3-7]86-*-linux-gnu* | i[3-7]86-*-linux-uclibc*)
+     targ_defvec=bfd_elf32_i386_vec
+     targ_selvecs="i386linux_vec bfd_efi_app_ia32_vec"
+     targ64_selvecs=bfd_elf64_x86_64_vec
+@@ -438,7 +440,7 @@
+     targ_defvec=bfd_elf64_x86_64_vec
+     targ_selvecs="bfd_elf32_i386_vec i386netbsd_vec i386coff_vec bfd_efi_app_ia32_vec"
+     ;;
+-  x86_64-*-linux-gnu*)
++  x86_64-*-linux-gnu* | x86_64-*-linux-uclibc*)
+     targ_defvec=bfd_elf64_x86_64_vec
+     targ_selvecs="bfd_elf32_i386_vec i386linux_vec bfd_efi_app_ia32_vec"
+     ;;
+@@ -589,7 +591,7 @@
+     targ_defvec=hp300hpux_vec
+     targ_underscore=yes
+     ;;
+-  m68*-*-linux*aout*)
++  m68*-*-linux-gnu* | m68*-*-linux-uclibc*)
+     targ_defvec=m68klinux_vec
+     targ_selvecs=bfd_elf32_m68k_vec
+     targ_underscore=yes
+@@ -865,7 +867,8 @@
+     ;;
+ #endif
+   powerpc-*-*bsd* | powerpc-*-elf* | powerpc-*-sysv4* | powerpc-*-eabi* | \
+-  powerpc-*-solaris2* | powerpc-*-linux-gnu* | powerpc-*-rtems* | \
++  powerpc-*-solaris2* | powerpc-*-linux-gnu* | powerpc-*-linux-uclibc* | \
++  powerpc-*-rtems* | \
+   powerpc-*-chorus* | powerpc-*-vxworks* | powerpc-*-windiss*)
+     targ_defvec=bfd_elf32_powerpc_vec
+     targ_selvecs="rs6000coff_vec bfd_elf32_powerpcle_vec ppcboot_vec"
+@@ -887,8 +890,8 @@
+     targ_selvecs="rs6000coff_vec bfd_elf32_powerpcqnx_vec ppcboot_vec"
+     ;;
+   powerpcle-*-elf* | powerpcle-*-sysv4* | powerpcle-*-eabi* | \
+-  powerpcle-*-solaris2* | powerpcle-*-linux-gnu* | powerpcle-*-vxworks* |\
+-  powerpcle-*-rtems*)
++  powerpcle-*-solaris2* | powerpcle-*-linux-gnu* | powerpcle-*-linux-uclibc* |\
++  powerpcle-*-vxworks* | powerpcle-*-rtems*)
+     targ_defvec=bfd_elf32_powerpcle_vec
+     targ_selvecs="rs6000coff_vec bfd_elf32_powerpc_vec ppcboot_vec"
+     targ64_selvecs="bfd_elf64_powerpc_vec bfd_elf64_powerpcle_vec"
+@@ -1038,7 +1041,7 @@
+     targ_selvecs="bfd_elf32_sparc_vec sunos_big_vec"
+     targ_underscore=yes
+     ;;
+-  sparc-*-linux-gnu*)
++  sparc-*-linux-gnu* | sparc-*-linux-uclibc*)
+     targ_defvec=bfd_elf32_sparc_vec
+     targ_selvecs="sparclinux_vec bfd_elf64_sparc_vec sunos_big_vec"
+     ;;
+@@ -1081,7 +1084,7 @@
+     targ_defvec=sunos_big_vec
+     targ_underscore=yes
+     ;;
+-  sparc64-*-linux-gnu*)
++  sparc64-*-linux-gnu* | sparc64-*-linux-uclibc*)
+     targ_defvec=bfd_elf64_sparc_vec
+     targ_selvecs="bfd_elf32_sparc_vec sparclinux_vec sunos_big_vec"
+     ;;
+diff -urN gdb-5.3/bfd/configure gdb-5.3-new/bfd/configure
+--- gdb-5.3/bfd/configure	2002-08-28 05:38:44.000000000 -0500
++++ gdb-5.3-new/bfd/configure	2004-01-11 06:27:15.000000000 -0600
+@@ -1677,6 +1677,11 @@
+   lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
+   ;;
+ 
++linux-uclibc*)
++  lt_cv_deplibs_check_method=pass_all
++  lt_cv_file_magic_test_file=`echo /lib/libuClibc-*.so`
++  ;;
++
+ netbsd*)
+   if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
+     lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$'
+@@ -5067,7 +5072,7 @@
+   alpha*-*-freebsd*)
+ 	COREFILE=''
+ 	;;
+-  alpha*-*-linux-gnu*)
++  alpha*-*-linux-gnu* | alpha*-*-linux-uclibc*)
+ 	COREFILE=trad-core.lo
+ 	TRAD_HEADER='"hosts/alphalinux.h"'
+ 	;;
+@@ -5126,7 +5131,7 @@
+ 	COREFILE=trad-core.lo
+ 	TRAD_HEADER='"hosts/i386mach3.h"'
+ 	;;
+-  i[3456]86-*-linux-gnu*)
++  i[3-7]86-*-linux-gnu* | i[3-7]86-*-linux-uclibc*)
+ 	COREFILE=trad-core.lo
+ 	TRAD_HEADER='"hosts/i386linux.h"'
+ 	;;