diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc/0016-handle-sysroot-support-for-nativesdk-gcc.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc/0016-handle-sysroot-support-for-nativesdk-gcc.patch | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc/0016-handle-sysroot-support-for-nativesdk-gcc.patch b/meta/recipes-devtools/gcc/gcc/0016-handle-sysroot-support-for-nativesdk-gcc.patch new file mode 100644 index 0000000000..3b54719536 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc/0016-handle-sysroot-support-for-nativesdk-gcc.patch @@ -0,0 +1,510 @@ +From 4fbbd40d7db89cdbeaf93df1e1da692b1f80a5bc 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 + +Being able to build a nativesdk gcc is useful, particularly in cases +where the host compiler may be of an incompatible version (or a 32 +bit compiler is needed). + +Sadly, building nativesdk-gcc is not straight forward. We install +nativesdk-gcc into a relocatable location and this means that its +library locations can change. "Normal" sysroot support doesn't help +in this case since the values of paths like "libdir" change, not just +base root directory of the system. + +In order to handle this we do two things: + +a) Add %r into spec file markup which can be used for injected paths + such as SYSTEMLIBS_DIR (see gcc_multilib_setup()). +b) Add other paths which need relocation into a .gccrelocprefix section + which the relocation code will notice and adjust automatically. + +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 +these as part of the gccrelocprefix the system can't do runtime relocation +if the executable is moved. (These paths were missed in the original +implementation.) + +Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org> +--- + gcc/c-family/c-opts.cc | 4 +-- + gcc/config/linux.h | 24 +++++++-------- + gcc/config/rs6000/sysv4.h | 24 +++++++-------- + gcc/cppdefault.cc | 63 ++++++++++++++++++++++++--------------- + gcc/cppdefault.h | 13 ++++---- + gcc/gcc.cc | 20 +++++++++---- + gcc/incpath.cc | 12 ++++---- + gcc/prefix.cc | 6 ++-- + 8 files changed, 94 insertions(+), 72 deletions(-) + +diff --git a/gcc/c-family/c-opts.cc b/gcc/c-family/c-opts.cc +index a341a061758..83b0bef4dbb 100644 +--- a/gcc/c-family/c-opts.cc ++++ b/gcc/c-family/c-opts.cc +@@ -1458,8 +1458,8 @@ add_prefixed_path (const char *suffix, incpath_kind chain) + size_t prefix_len, suffix_len; + + suffix_len = strlen (suffix); +- prefix = iprefix ? iprefix : cpp_GCC_INCLUDE_DIR; +- prefix_len = iprefix ? strlen (iprefix) : cpp_GCC_INCLUDE_DIR_len; ++ prefix = iprefix ? iprefix : GCC_INCLUDE_DIRVAR; ++ prefix_len = iprefix ? strlen (iprefix) : strlen(GCC_INCLUDE_DIRVAR) - 7; + + 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 8a3cd4f2d34..58143dff731 100644 +--- a/gcc/config/linux.h ++++ b/gcc/config/linux.h +@@ -134,53 +134,53 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + * Unfortunately, this is mostly duplicated from cppdefault.cc */ + #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 +@@ -205,7 +205,7 @@ 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 e5dd6538358..b496849b792 100644 +--- a/gcc/config/rs6000/sysv4.h ++++ b/gcc/config/rs6000/sysv4.h +@@ -958,53 +958,53 @@ 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 +@@ -1029,7 +1029,7 @@ 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.cc b/gcc/cppdefault.cc +index 52cf14e92f8..d8977afc05e 100644 +--- a/gcc/cppdefault.cc ++++ b/gcc/cppdefault.cc +@@ -35,6 +35,30 @@ + # undef CROSS_INCLUDE_DIR + #endif + ++static char GPLUSPLUS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_INCLUDE_DIR; ++char GCC_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GCC_INCLUDE_DIR; ++static char GPLUSPLUS_TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_TOOL_INCLUDE_DIR; ++static char GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_BACKWARD_INCLUDE_DIR; ++static char STANDARD_STARTFILE_PREFIX_2VAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET; ++#ifdef LOCAL_INCLUDE_DIR ++static char LOCAL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = LOCAL_INCLUDE_DIR; ++#endif ++#ifdef PREFIX_INCLUDE_DIR ++static char PREFIX_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX_INCLUDE_DIR; ++#endif ++#ifdef FIXED_INCLUDE_DIR ++static char FIXED_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = FIXED_INCLUDE_DIR; ++#endif ++#ifdef CROSS_INCLUDE_DIR ++static char CROSS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = CROSS_INCLUDE_DIR; ++#endif ++#ifdef TOOL_INCLUDE_DIR ++static char TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = TOOL_INCLUDE_DIR; ++#endif ++#ifdef NATIVE_SYSTEM_HEADER_DIR ++static char NATIVE_SYSTEM_HEADER_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = NATIVE_SYSTEM_HEADER_DIR; ++#endif ++ + const struct default_include cpp_include_defaults[] + #ifdef INCLUDE_DEFAULTS + = INCLUDE_DEFAULTS; +@@ -42,17 +66,17 @@ const struct default_include cpp_include_defaults[] + = { + #ifdef GPLUSPLUS_INCLUDE_DIR + /* Pick up GNU C++ generic include files. */ +- { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, ++ { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, + #endif + #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR + /* Pick up GNU C++ target-dependent include files. */ +- { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, ++ { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, + #endif + #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR + /* Pick up GNU C++ backward and deprecated include files. */ +- { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, ++ { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, + #endif + #ifdef GPLUSPLUS_LIBCXX_INCLUDE_DIR +@@ -62,23 +86,23 @@ const struct default_include cpp_include_defaults[] + #endif + #ifdef GCC_INCLUDE_DIR + /* This is the dir for gcc's private headers. */ +- { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, ++ { GCC_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 }, + #endif + #ifdef GCC_INCLUDE_SUBDIR_TARGET + /* This is the dir for gcc's private headers under the specified sysroot. */ +- { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0 }, ++ { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0 }, + #endif + #ifdef LOCAL_INCLUDE_DIR + /* /usr/local/include comes before the fixincluded header files. */ +- { 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 }, + #endif + #ifdef PREFIX_INCLUDE_DIR +- { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 }, ++ { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0 }, + #endif + #ifdef FIXED_INCLUDE_DIR + /* This is the dir for fixincludes. */ +- { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0, ++ { FIXED_INCLUDE_DIRVAR, "GCC", 0, 0, 0, + /* A multilib suffix needs adding if different multilibs use + different headers. */ + #ifdef SYSROOT_HEADERS_SUFFIX_SPEC +@@ -90,33 +114,24 @@ const struct default_include cpp_include_defaults[] + #endif + #ifdef CROSS_INCLUDE_DIR + /* One place the target system's headers might be. */ +- { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, ++ { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 }, + #endif + #ifdef TOOL_INCLUDE_DIR + /* Another place the target system's headers might be. */ +- { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 }, ++ { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0 }, + #endif + #ifdef NATIVE_SYSTEM_HEADER_DIR + /* /usr/include comes dead last. */ +- { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 }, +- { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 }, ++ { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 }, ++ { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 }, + #endif + { 0, 0, 0, 0, 0, 0 } + }; + #endif /* no INCLUDE_DEFAULTS */ + +-#ifdef GCC_INCLUDE_DIR +-const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR; +-const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8; +-#else +-const char cpp_GCC_INCLUDE_DIR[] = ""; +-const size_t cpp_GCC_INCLUDE_DIR_len = 0; +-#endif +- + /* The configured prefix. */ +-const char cpp_PREFIX[] = PREFIX; +-const size_t cpp_PREFIX_len = sizeof PREFIX - 1; +-const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX; ++char PREFIXVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX; ++char EXEC_PREFIXVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX; + + /* This value is set by cpp_relocated at runtime */ + const char *gcc_exec_prefix; +diff --git a/gcc/cppdefault.h b/gcc/cppdefault.h +index fb97c0b5814..6267150facc 100644 +--- a/gcc/cppdefault.h ++++ b/gcc/cppdefault.h +@@ -33,7 +33,8 @@ + + struct default_include + { +- const char *const fname; /* The name of the directory. */ ++ const char *fname; /* The name of the directory. */ ++ + const char *const component; /* The component containing the directory + (see update_path in prefix.cc) */ + const char cplusplus; /* When this is non-zero, we should only +@@ -55,17 +56,13 @@ struct default_include + }; + + extern const struct default_include cpp_include_defaults[]; +-extern const char cpp_GCC_INCLUDE_DIR[]; +-extern const size_t cpp_GCC_INCLUDE_DIR_len; ++extern char GCC_INCLUDE_DIRVAR[] __attribute__ ((section (".gccrelocprefix"))); + + /* The configure-time prefix, i.e., the value supplied as the argument + to --prefix=. */ +-extern const char cpp_PREFIX[]; ++extern char PREFIXVAR[] __attribute__ ((section (".gccrelocprefix"))); + /* The length of the configure-time prefix. */ +-extern const size_t cpp_PREFIX_len; +-/* The configure-time execution prefix. This is typically the lib/gcc +- subdirectory of cpp_PREFIX. */ +-extern const char cpp_EXEC_PREFIX[]; ++extern char EXEC_PREFIXVAR[] __attribute__ ((section (".gccrelocprefix"))); + /* The run-time execution prefix. This is typically the lib/gcc + subdirectory of the actual installation. */ + extern const char *gcc_exec_prefix; +diff --git a/gcc/gcc.cc b/gcc/gcc.cc +index aa4cf92fb78..5569a39a14a 100644 +--- a/gcc/gcc.cc ++++ b/gcc/gcc.cc +@@ -252,6 +252,8 @@ FILE *report_times_to_file = NULL; + #endif + static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; + ++static char target_relocatable_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = SYSTEMLIBS_DIR; ++ + /* Nonzero means pass the updated target_system_root to the compiler. */ + + static int target_system_root_changed; +@@ -575,6 +577,7 @@ or with constant text in a single argument. + %G process LIBGCC_SPEC as a spec. + %R Output the concatenation of target_system_root and + target_sysroot_suffix. ++ %r Output the base path target_relocatable_prefix + %S process STARTFILE_SPEC as a spec. A capital S is actually used here. + %E process ENDFILE_SPEC as a spec. A capital E is actually used here. + %C process CPP_SPEC as a spec. +@@ -1627,10 +1630,10 @@ static const char *gcc_libexec_prefix; + gcc_exec_prefix is set because, in that case, we know where the + compiler has been installed, and use paths relative to that + location instead. */ +-static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; +-static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; +-static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; +-static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; ++static char standard_exec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX; ++static char standard_libexec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_LIBEXEC_PREFIX; ++static char standard_bindir_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_BINDIR_PREFIX; ++static char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; + + /* For native compilers, these are well-known paths containing + components that may be provided by the system. For cross +@@ -1638,9 +1641,9 @@ static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; + static const char *md_exec_prefix = MD_EXEC_PREFIX; + static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; + static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; +-static const char *const standard_startfile_prefix_1 ++static char standard_startfile_prefix_1[4096] __attribute__ ((section (".gccrelocprefix"))) + = STANDARD_STARTFILE_PREFIX_1; +-static const char *const standard_startfile_prefix_2 ++static char standard_startfile_prefix_2[4096] __attribute__ ((section (".gccrelocprefix"))) + = STANDARD_STARTFILE_PREFIX_2; + + /* A relative path to be used in finding the location of tools +@@ -6676,6 +6679,11 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) + } + break; + ++ case 'r': ++ obstack_grow (&obstack, target_relocatable_prefix, ++ strlen (target_relocatable_prefix)); ++ break; ++ + case 'S': + value = do_spec_1 (startfile_spec, 0, NULL); + if (value != 0) +diff --git a/gcc/incpath.cc b/gcc/incpath.cc +index c80f100f476..5ac03c08693 100644 +--- a/gcc/incpath.cc ++++ b/gcc/incpath.cc +@@ -135,7 +135,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, + int relocated = cpp_relocated (); + size_t len; + +- if (iprefix && (len = cpp_GCC_INCLUDE_DIR_len) != 0) ++ if (iprefix && (len = strlen(GCC_INCLUDE_DIRVAR) - 7) != 0) + { + /* Look for directories that start with the standard prefix. + "Translate" them, i.e. replace /usr/local/lib/gcc... with +@@ -150,7 +150,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, + now. */ + if (sysroot && p->add_sysroot) + continue; +- if (!filename_ncmp (p->fname, cpp_GCC_INCLUDE_DIR, len)) ++ if (!filename_ncmp (p->fname, GCC_INCLUDE_DIRVAR, len)) + { + char *str = concat (iprefix, p->fname + len, NULL); + if (p->multilib == 1 && imultilib) +@@ -191,7 +191,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, + free (sysroot_no_trailing_dir_separator); + } + else if (!p->add_sysroot && relocated +- && !filename_ncmp (p->fname, cpp_PREFIX, cpp_PREFIX_len)) ++ && !filename_ncmp (p->fname, PREFIXVAR, strlen(PREFIXVAR))) + { + static const char *relocated_prefix; + char *ostr; +@@ -208,12 +208,12 @@ add_standard_paths (const char *sysroot, const char *iprefix, + dummy = concat (gcc_exec_prefix, "dummy", NULL); + relocated_prefix + = make_relative_prefix (dummy, +- cpp_EXEC_PREFIX, +- cpp_PREFIX); ++ EXEC_PREFIXVAR, ++ PREFIXVAR); + free (dummy); + } + ostr = concat (relocated_prefix, +- p->fname + cpp_PREFIX_len, ++ p->fname + strlen(PREFIXVAR), + NULL); + str = update_path (ostr, p->component); + free (ostr); +diff --git a/gcc/prefix.cc b/gcc/prefix.cc +index 096ed5afa3d..2526f0ecc39 100644 +--- a/gcc/prefix.cc ++++ b/gcc/prefix.cc +@@ -72,7 +72,9 @@ License along with GCC; see the file COPYING3. If not see + #include "prefix.h" + #include "common/common-target.h" + +-static const char *std_prefix = PREFIX; ++char PREFIXVAR1[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX; ++ ++static const char *std_prefix = PREFIXVAR1; + + static const char *get_key_value (char *); + static char *translate_name (char *); +@@ -212,7 +214,7 @@ translate_name (char *name) + prefix = getenv (key); + + if (prefix == 0) +- prefix = PREFIX; ++ prefix = PREFIXVAR1; + + /* We used to strip trailing DIR_SEPARATORs here, but that can + sometimes yield a result with no separator when one was coded |