gcc: port missing patches from 4.6 to 4.8

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36693 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 142 insertions, 0 deletions

diff --git a/toolchain/gcc/patches/4.8-linaro/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/4.8-linaro/810-arm-softfloat-libgcc.patch
new file mode 100644
index 000000000..a3816a17f
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,14 @@
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,10 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+-	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++	_arm_fixsfsi _arm_fixunssfsi
+ 
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
diff --git a/toolchain/gcc/patches/4.8-linaro/830-arm_unbreak_armv4t.patch b/toolchain/gcc/patches/4.8-linaro/830-arm_unbreak_armv4t.patch
new file mode 100644
index 000000000..37f8f2a54
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/830-arm_unbreak_armv4t.patch
@@ -0,0 +1,13 @@
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -45,7 +45,7 @@
+    The ARM10TDMI core is the default for armv5t, so set
+    SUBTARGET_CPU_DEFAULT to achieve this.  */
+ #undef  SUBTARGET_CPU_DEFAULT
+-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
++#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
+ 
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+    config.gcc for big endian configurations.  */
diff --git a/toolchain/gcc/patches/4.8-linaro/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/4.8-linaro/840-armv4_pass_fix-v4bx_to_ld.patch
new file mode 100644
index 000000000..e938905ab
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/840-armv4_pass_fix-v4bx_to_ld.patch
@@ -0,0 +1,19 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -81,10 +81,15 @@
+ #undef  MUSL_DYNAMIC_LINKER
+ #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1"
+ 
++/* For armv4 we pass --fix-v4bx to linker to support EABI */
++#undef TARGET_FIX_V4BX_SPEC
++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
++  "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
+ #undef  LINK_SPEC
+-#define LINK_SPEC BE8_LINK_SPEC						\
++#define LINK_SPEC BE8_LINK_SPEC TARGET_FIX_V4BX_SPEC			\
+   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
+ 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
+ 
diff --git a/toolchain/gcc/patches/4.8-linaro/850-use_shared_libgcc.patch b/toolchain/gcc/patches/4.8-linaro/850-use_shared_libgcc.patch
new file mode 100644
index 000000000..4a77b86c1
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/850-use_shared_libgcc.patch
@@ -0,0 +1,58 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -114,10 +114,6 @@
+ #define ENDFILE_SPEC \
+   LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
+ 
+-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
+-   do not use -lfloat.  */
+-#undef LIBGCC_SPEC
+-
+ /* Clear the instruction cache from `beg' to `end'.  This is
+    implemented in lib1funcs.S, so ensure an error if this definition
+    is used.  */
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -51,6 +51,10 @@ see the files COPYING3 and COPYING.RUNTI
+ 	builtin_assert ("system=posix");			\
+     } while (0)
+ 
++#ifndef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
++#endif
++
+ /* Determine which dynamic linker to use depending on whether GLIBC or
+    uClibc or Bionic is the default C library and whether
+    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
+--- a/libgcc/mkmap-symver.awk
++++ b/libgcc/mkmap-symver.awk
+@@ -132,5 +132,5 @@ function output(lib) {
+   else if (inherit[lib])
+     printf("} %s;\n", inherit[lib]);
+   else
+-    printf ("\n  local:\n\t*;\n};\n");
++    printf ("\n\t*;\n};\n");
+ }
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -368,7 +368,7 @@ endif
+ # For -fvisibility=hidden.  We need both a -fvisibility=hidden on
+ # the command line, and a #define to prevent libgcc2.h etc from
+ # overriding that with #pragmas.
+-vis_hide = @vis_hide@
++vis_hide =
+ 
+ ifneq (,$(vis_hide))
+ 
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -61,6 +61,9 @@
+ #undef  CPLUSPLUS_CPP_SPEC
+ #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
+ 
++#undef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
++
+ #undef  LINK_SHLIB_SPEC
+ #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
+ 
diff --git a/toolchain/gcc/patches/4.8-linaro/860-uclibc_use_eh_frame.patch b/toolchain/gcc/patches/4.8-linaro/860-uclibc_use_eh_frame.patch
new file mode 100644
index 000000000..0464bd7d2
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/860-uclibc_use_eh_frame.patch
@@ -0,0 +1,29 @@
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -100,15 +100,20 @@ call_ ## FUNC (void)					\
+ #if defined(OBJECT_FORMAT_ELF) \
+     && !defined(OBJECT_FORMAT_FLAT) \
+     && defined(HAVE_LD_EH_FRAME_HDR) \
+-    && !defined(inhibit_libc) && !defined(CRTSTUFFT_O) \
+-    && defined(__GLIBC__) && __GLIBC__ >= 2
++    && !defined(inhibit_libc) && !defined(CRTSTUFFT_O)
+ #include <link.h>
+ /* uClibc pretends to be glibc 2.2 and DT_CONFIG is defined in its link.h.
+    But it doesn't use PT_GNU_EH_FRAME ELF segment currently.  */
+-# if !defined(__UCLIBC__) \
+-     && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
+-     || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
+-#  define USE_PT_GNU_EH_FRAME
++# if defined(__UCLIBC__)
++#  if (__UCLIBC_MAJOR__ > 0 || __UCLIBC_MINOR__ > 9 || \
++       (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ >= 33))
++#   define USE_PT_GNU_EH_FRAME
++#  endif
++# elif defined(__GLIBC__)
++#  if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
++       || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
++#   define USE_PT_GNU_EH_FRAME
++#  endif
+ # endif
+ #endif
+ 
diff --git a/toolchain/gcc/patches/4.8-linaro/900-bad-mips16-crt.patch b/toolchain/gcc/patches/4.8-linaro/900-bad-mips16-crt.patch
new file mode 100644
index 000000000..dd6e9dc88
--- /dev/null
+++ b/toolchain/gcc/patches/4.8-linaro/900-bad-mips16-crt.patch
@@ -0,0 +1,9 @@
+--- a/libgcc/config/mips/t-mips16
++++ b/libgcc/config/mips/t-mips16
+@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
+ 
+ # Version these symbols if building libgcc.so.
+ SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
++
++CRTSTUFF_T_CFLAGS += -mno-mips16
++CRTSTUFF_T_CFLAGS_S += -mno-mips16