gcc: Extend .gccrelocprefix section support to musl configs

musl includes were not using the relocatable prefix like glibc
counterpart, this will mean that musl SDKs will behave better and find
the headers in right install directories

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 170 insertions, 9 deletions

diff --git a/meta/recipes-devtools/gcc/gcc/0024-handle-sysroot-support-for-nativesdk-gcc.patch b/meta/recipes-devtools/gcc/gcc/0024-handle-sysroot-support-for-nativesdk-gcc.patch
index 3958e9c212..b1054fa749 100644
--- a/meta/recipes-devtools/gcc/gcc/0024-handle-sysroot-support-for-nativesdk-gcc.patch
+++ b/meta/recipes-devtools/gcc/gcc/0024-handle-sysroot-support-for-nativesdk-gcc.patch
@@ -1,4 +1,4 @@
-From 35c084a051bcd6587ebc73e4acb045cb2bdf7e99 Mon Sep 17 00:00:00 2001
+From 354682ad8f71f62643dcd83f64b51b5979615a0c Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Mon, 7 Dec 2015 23:39:54 +0000
 Subject: [PATCH] handle sysroot support for nativesdk-gcc
@@ -23,6 +23,9 @@ b) Add other paths which need relocation into a .gccrelocprefix section
 Upstream-Status: Inappropriate
 RP 2015/7/28
 
+Extend the gccrelocprefix support to musl config too, this ensures
+that gcc will get right bits in SDK installations
+
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
 
 Added PREFIXVAR and EXEC_PREFIXVAR to support runtime relocation.  Without
@@ -32,16 +35,18 @@ implementation.)
 
 Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
 ---
- gcc/c-family/c-opts.c |  4 +--
- gcc/cppdefault.c      | 63 ++++++++++++++++++++++++++-----------------
- gcc/cppdefault.h      | 13 ++++-----
- gcc/gcc.c             | 20 +++++++++-----
- gcc/incpath.c         | 12 ++++-----
- gcc/prefix.c          |  6 +++--
- 6 files changed, 70 insertions(+), 48 deletions(-)
+ gcc/c-family/c-opts.c     |  4 +--
+ gcc/config/linux.h        | 24 +++++++--------
+ gcc/config/rs6000/sysv4.h | 24 +++++++--------
+ gcc/cppdefault.c          | 63 ++++++++++++++++++++++++---------------
+ gcc/cppdefault.h          | 13 ++++----
+ gcc/gcc.c                 | 20 +++++++++----
+ gcc/incpath.c             | 12 ++++----
+ gcc/prefix.c              |  6 ++--
+ 8 files changed, 94 insertions(+), 72 deletions(-)
 
 diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c
-index bd15b9cd902..2bd667e3f58 100644
+index 89e05a4c551..5577383665d 100644
 --- a/gcc/c-family/c-opts.c
 +++ b/gcc/c-family/c-opts.c
 @@ -1436,8 +1436,8 @@ add_prefixed_path (const char *suffix, incpath_kind chain)
@@ -55,6 +60,162 @@ index bd15b9cd902..2bd667e3f58 100644
  
    path = (char *) xmalloc (prefix_len + suffix_len + 1);
    memcpy (path, prefix, prefix_len);
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index b525bcd56b3..ba02c013e30 100644
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -129,53 +129,53 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+  * Unfortunately, this is mostly duplicated from cppdefault.c */
+ #if DEFAULT_LIBC == LIBC_MUSL
+ #define INCLUDE_DEFAULTS_MUSL_GPP			\
+-    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,		\
++    { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1,		\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },		\
+-    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,		\
++    { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1,	\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },		\
+-    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,	\
++    { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1,	\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ 
+ #ifdef LOCAL_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_LOCAL			\
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },		\
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 2 },		\
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 0 },
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_LOCAL
+ #endif
+ 
+ #ifdef PREFIX_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_PREFIX			\
+-    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
++    { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_PREFIX
+ #endif
+ 
+ #ifdef CROSS_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_CROSS			\
+-    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
++    { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_CROSS
+ #endif
+ 
+ #ifdef TOOL_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_TOOL			\
+-    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
++    { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_TOOL
+ #endif
+ 
+ #ifdef GCC_INCLUDE_SUBDIR_TARGET
+ #define INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET		\
+-    { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0},
++    { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET
+ #endif
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
+-    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+-    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, 0, 0, 0, 1, 2 },	\
++    { NATIVE_SYSTEM_HEADER_DIRVAR, 0, 0, 0, 1, 0 },
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE
+ #endif
+@@ -200,7 +200,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+     INCLUDE_DEFAULTS_MUSL_TOOL				\
+     INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET			\
+     INCLUDE_DEFAULTS_MUSL_NATIVE			\
+-    { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
++    { GCC_INCLUDE_DIRVAR, "GCC", 0, 1, 0, 0 },		\
+     { 0, 0, 0, 0, 0, 0 }				\
+   }
+ #endif
+diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
+index 0c2bba5ea32..313a8de4417 100644
+--- a/gcc/config/rs6000/sysv4.h
++++ b/gcc/config/rs6000/sysv4.h
+@@ -959,53 +959,53 @@ ncrtn.o%s"
+ /* Include order changes for musl, same as in generic linux.h.  */
+ #if DEFAULT_LIBC == LIBC_MUSL
+ #define INCLUDE_DEFAULTS_MUSL_GPP			\
+-    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,		\
++    { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1,		\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },		\
+-    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,		\
++    { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1,	\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },		\
+-    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,	\
++    { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1,	\
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ 
+ #ifdef LOCAL_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_LOCAL			\
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },		\
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 2 },		\
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 0 },
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_LOCAL
+ #endif
+ 
+ #ifdef PREFIX_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_PREFIX			\
+-    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
++    { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_PREFIX
+ #endif
+ 
+ #ifdef CROSS_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_CROSS			\
+-    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
++    { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_CROSS
+ #endif
+ 
+ #ifdef TOOL_INCLUDE_DIR
+ #define INCLUDE_DEFAULTS_MUSL_TOOL			\
+-    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
++    { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_TOOL
+ #endif
+ 
+ #ifdef GCC_INCLUDE_SUBDIR_TARGET
+ #define INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET            \
+-    { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0},
++    { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0},
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET
+ #endif
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
+-    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+-    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, 0, 0, 0, 1, 2 },	\
++    { NATIVE_SYSTEM_HEADER_DIRVAR, 0, 0, 0, 1, 0 },
+ #else
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE
+ #endif
+@@ -1030,7 +1030,7 @@ ncrtn.o%s"
+     INCLUDE_DEFAULTS_MUSL_TOOL				\
+     INCLUDE_DEFAULTS_MUSL_SUBDIR_TARGET			\
+     INCLUDE_DEFAULTS_MUSL_NATIVE			\
+-    { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
++    { GCC_INCLUDE_DIRVAR, "GCC", 0, 1, 0, 0 },		\
+     { 0, 0, 0, 0, 0, 0 }				\
+   }
+ #endif
 diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c
 index d54d6ce0076..784a92a0c24 100644
 --- a/gcc/cppdefault.c