Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 1 | From bb1f359e34649516e61305e9748534cce7e0ee70 Mon Sep 17 00:00:00 2001 |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 2 | From: Khem Raj <raj.khem@gmail.com> |
| 3 | Date: Mon, 7 Dec 2015 23:39:54 +0000 |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 4 | Subject: [PATCH] handle sysroot support for nativesdk-gcc |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 5 | |
| 6 | Being able to build a nativesdk gcc is useful, particularly in cases |
| 7 | where the host compiler may be of an incompatible version (or a 32 |
| 8 | bit compiler is needed). |
| 9 | |
| 10 | Sadly, building nativesdk-gcc is not straight forward. We install |
| 11 | nativesdk-gcc into a relocatable location and this means that its |
| 12 | library locations can change. "Normal" sysroot support doesn't help |
| 13 | in this case since the values of paths like "libdir" change, not just |
| 14 | base root directory of the system. |
| 15 | |
| 16 | In order to handle this we do two things: |
| 17 | |
| 18 | a) Add %r into spec file markup which can be used for injected paths |
| 19 | such as SYSTEMLIBS_DIR (see gcc_multilib_setup()). |
| 20 | b) Add other paths which need relocation into a .gccrelocprefix section |
| 21 | which the relocation code will notice and adjust automatically. |
| 22 | |
| 23 | Upstream-Status: Inappropriate |
| 24 | RP 2015/7/28 |
| 25 | |
| 26 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| 27 | |
| 28 | Added PREFIXVAR and EXEC_PREFIXVAR to support runtime relocation. Without |
| 29 | these as part of the gccrelocprefix the system can't do runtime relocation |
| 30 | if the executable is moved. (These paths were missed in the original |
| 31 | implementation.) |
| 32 | |
| 33 | Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org> |
| 34 | --- |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 35 | gcc/c-family/c-opts.c | 4 +-- |
| 36 | gcc/cppdefault.c | 63 ++++++++++++++++++++++++++----------------- |
| 37 | gcc/cppdefault.h | 13 ++++----- |
| 38 | gcc/gcc.c | 20 +++++++++----- |
| 39 | gcc/incpath.c | 12 ++++----- |
| 40 | gcc/prefix.c | 6 +++-- |
| 41 | 6 files changed, 70 insertions(+), 48 deletions(-) |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 42 | |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 43 | diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c |
| 44 | index 58ba0948e79..806bbcfb7a5 100644 |
| 45 | --- a/gcc/c-family/c-opts.c |
| 46 | +++ b/gcc/c-family/c-opts.c |
| 47 | @@ -1409,8 +1409,8 @@ add_prefixed_path (const char *suffix, incpath_kind chain) |
| 48 | size_t prefix_len, suffix_len; |
| 49 | |
| 50 | suffix_len = strlen (suffix); |
| 51 | - prefix = iprefix ? iprefix : cpp_GCC_INCLUDE_DIR; |
| 52 | - prefix_len = iprefix ? strlen (iprefix) : cpp_GCC_INCLUDE_DIR_len; |
| 53 | + prefix = iprefix ? iprefix : GCC_INCLUDE_DIRVAR; |
| 54 | + prefix_len = iprefix ? strlen (iprefix) : strlen(GCC_INCLUDE_DIRVAR) - 7; |
| 55 | |
| 56 | path = (char *) xmalloc (prefix_len + suffix_len + 1); |
| 57 | memcpy (path, prefix, prefix_len); |
| 58 | diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c |
| 59 | index 2f43b88a0c3..6b6be04686c 100644 |
| 60 | --- a/gcc/cppdefault.c |
| 61 | +++ b/gcc/cppdefault.c |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 62 | @@ -35,6 +35,30 @@ |
| 63 | # undef CROSS_INCLUDE_DIR |
| 64 | #endif |
| 65 | |
| 66 | +static char GPLUSPLUS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_INCLUDE_DIR; |
| 67 | +char GCC_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GCC_INCLUDE_DIR; |
| 68 | +static char GPLUSPLUS_TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_TOOL_INCLUDE_DIR; |
| 69 | +static char GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_BACKWARD_INCLUDE_DIR; |
| 70 | +static char STANDARD_STARTFILE_PREFIX_2VAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET; |
| 71 | +#ifdef LOCAL_INCLUDE_DIR |
| 72 | +static char LOCAL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = LOCAL_INCLUDE_DIR; |
| 73 | +#endif |
| 74 | +#ifdef PREFIX_INCLUDE_DIR |
| 75 | +static char PREFIX_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX_INCLUDE_DIR; |
| 76 | +#endif |
| 77 | +#ifdef FIXED_INCLUDE_DIR |
| 78 | +static char FIXED_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = FIXED_INCLUDE_DIR; |
| 79 | +#endif |
| 80 | +#ifdef CROSS_INCLUDE_DIR |
| 81 | +static char CROSS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = CROSS_INCLUDE_DIR; |
| 82 | +#endif |
| 83 | +#ifdef TOOL_INCLUDE_DIR |
| 84 | +static char TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = TOOL_INCLUDE_DIR; |
| 85 | +#endif |
| 86 | +#ifdef NATIVE_SYSTEM_HEADER_DIR |
| 87 | +static char NATIVE_SYSTEM_HEADER_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = NATIVE_SYSTEM_HEADER_DIR; |
| 88 | +#endif |
| 89 | + |
| 90 | const struct default_include cpp_include_defaults[] |
| 91 | #ifdef INCLUDE_DEFAULTS |
| 92 | = INCLUDE_DEFAULTS; |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 93 | @@ -42,38 +66,38 @@ const struct default_include cpp_include_defaults[] |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 94 | = { |
| 95 | #ifdef GPLUSPLUS_INCLUDE_DIR |
| 96 | /* Pick up GNU C++ generic include files. */ |
| 97 | - { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, |
| 98 | + { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1, |
| 99 | GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, |
| 100 | #endif |
| 101 | #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR |
| 102 | /* Pick up GNU C++ target-dependent include files. */ |
| 103 | - { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, |
| 104 | + { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1, |
| 105 | GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, |
| 106 | #endif |
| 107 | #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR |
| 108 | /* Pick up GNU C++ backward and deprecated include files. */ |
| 109 | - { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, |
| 110 | + { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1, |
| 111 | GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, |
| 112 | #endif |
| 113 | #ifdef GCC_INCLUDE_DIR |
| 114 | /* This is the dir for gcc's private headers. */ |
| 115 | - { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, |
| 116 | + { GCC_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 }, |
| 117 | #endif |
| 118 | #ifdef GCC_INCLUDE_SUBDIR_TARGET |
| 119 | /* This is the dir for gcc's private headers under the specified sysroot. */ |
| 120 | - { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0 }, |
| 121 | + { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0 }, |
| 122 | #endif |
| 123 | #ifdef LOCAL_INCLUDE_DIR |
| 124 | /* /usr/local/include comes before the fixincluded header files. */ |
| 125 | - { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 }, |
| 126 | - { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 }, |
| 127 | + { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 2 }, |
| 128 | + { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 0 }, |
| 129 | #endif |
| 130 | #ifdef PREFIX_INCLUDE_DIR |
| 131 | - { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 }, |
| 132 | + { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0 }, |
| 133 | #endif |
| 134 | #ifdef FIXED_INCLUDE_DIR |
| 135 | /* This is the dir for fixincludes. */ |
| 136 | - { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0, |
| 137 | + { FIXED_INCLUDE_DIRVAR, "GCC", 0, 0, 0, |
| 138 | /* A multilib suffix needs adding if different multilibs use |
| 139 | different headers. */ |
| 140 | #ifdef SYSROOT_HEADERS_SUFFIX_SPEC |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 141 | @@ -85,33 +109,24 @@ const struct default_include cpp_include_defaults[] |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 142 | #endif |
| 143 | #ifdef CROSS_INCLUDE_DIR |
| 144 | /* One place the target system's headers might be. */ |
| 145 | - { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, |
| 146 | + { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 }, |
| 147 | #endif |
| 148 | #ifdef TOOL_INCLUDE_DIR |
| 149 | /* Another place the target system's headers might be. */ |
| 150 | - { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 }, |
| 151 | + { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0 }, |
| 152 | #endif |
| 153 | #ifdef NATIVE_SYSTEM_HEADER_DIR |
| 154 | /* /usr/include comes dead last. */ |
| 155 | - { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 }, |
| 156 | - { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 }, |
| 157 | + { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 }, |
| 158 | + { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 }, |
| 159 | #endif |
| 160 | { 0, 0, 0, 0, 0, 0 } |
| 161 | }; |
| 162 | #endif /* no INCLUDE_DEFAULTS */ |
| 163 | |
| 164 | -#ifdef GCC_INCLUDE_DIR |
| 165 | -const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR; |
| 166 | -const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8; |
| 167 | -#else |
| 168 | -const char cpp_GCC_INCLUDE_DIR[] = ""; |
| 169 | -const size_t cpp_GCC_INCLUDE_DIR_len = 0; |
| 170 | -#endif |
| 171 | - |
| 172 | /* The configured prefix. */ |
| 173 | -const char cpp_PREFIX[] = PREFIX; |
| 174 | -const size_t cpp_PREFIX_len = sizeof PREFIX - 1; |
| 175 | -const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX; |
| 176 | +char PREFIXVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX; |
| 177 | +char EXEC_PREFIXVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX; |
| 178 | |
| 179 | /* This value is set by cpp_relocated at runtime */ |
| 180 | const char *gcc_exec_prefix; |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 181 | diff --git a/gcc/cppdefault.h b/gcc/cppdefault.h |
| 182 | index a681264f75e..5e10a2fa140 100644 |
| 183 | --- a/gcc/cppdefault.h |
| 184 | +++ b/gcc/cppdefault.h |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 185 | @@ -33,7 +33,8 @@ |
| 186 | |
| 187 | struct default_include |
| 188 | { |
| 189 | - const char *const fname; /* The name of the directory. */ |
| 190 | + const char *fname; /* The name of the directory. */ |
| 191 | + |
| 192 | const char *const component; /* The component containing the directory |
| 193 | (see update_path in prefix.c) */ |
| 194 | const char cplusplus; /* Only look here if we're compiling C++. */ |
| 195 | @@ -50,17 +51,13 @@ struct default_include |
| 196 | }; |
| 197 | |
| 198 | extern const struct default_include cpp_include_defaults[]; |
| 199 | -extern const char cpp_GCC_INCLUDE_DIR[]; |
| 200 | -extern const size_t cpp_GCC_INCLUDE_DIR_len; |
| 201 | +extern char GCC_INCLUDE_DIRVAR[] __attribute__ ((section (".gccrelocprefix"))); |
| 202 | |
| 203 | /* The configure-time prefix, i.e., the value supplied as the argument |
| 204 | to --prefix=. */ |
| 205 | -extern const char cpp_PREFIX[]; |
| 206 | +extern char PREFIXVAR[] __attribute__ ((section (".gccrelocprefix"))); |
| 207 | /* The length of the configure-time prefix. */ |
| 208 | -extern const size_t cpp_PREFIX_len; |
| 209 | -/* The configure-time execution prefix. This is typically the lib/gcc |
| 210 | - subdirectory of cpp_PREFIX. */ |
| 211 | -extern const char cpp_EXEC_PREFIX[]; |
| 212 | +extern char EXEC_PREFIXVAR[] __attribute__ ((section (".gccrelocprefix"))); |
| 213 | /* The run-time execution prefix. This is typically the lib/gcc |
| 214 | subdirectory of the actual installation. */ |
| 215 | extern const char *gcc_exec_prefix; |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 216 | diff --git a/gcc/gcc.c b/gcc/gcc.c |
| 217 | index c87f603955f..535d5c3bb65 100644 |
| 218 | --- a/gcc/gcc.c |
| 219 | +++ b/gcc/gcc.c |
| 220 | @@ -252,6 +252,8 @@ FILE *report_times_to_file = NULL; |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 221 | #endif |
| 222 | static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT; |
| 223 | |
| 224 | +static char target_relocatable_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = SYSTEMLIBS_DIR; |
| 225 | + |
| 226 | /* Nonzero means pass the updated target_system_root to the compiler. */ |
| 227 | |
| 228 | static int target_system_root_changed; |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 229 | @@ -526,6 +528,7 @@ or with constant text in a single argument. |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 230 | %G process LIBGCC_SPEC as a spec. |
| 231 | %R Output the concatenation of target_system_root and |
| 232 | target_sysroot_suffix. |
| 233 | + %r Output the base path target_relocatable_prefix |
| 234 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. |
| 235 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. |
| 236 | %C process CPP_SPEC as a spec. |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 237 | @@ -1499,10 +1502,10 @@ static const char *gcc_libexec_prefix; |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 238 | gcc_exec_prefix is set because, in that case, we know where the |
| 239 | compiler has been installed, and use paths relative to that |
| 240 | location instead. */ |
| 241 | -static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; |
| 242 | -static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; |
| 243 | -static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; |
| 244 | -static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; |
| 245 | +static char standard_exec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX; |
| 246 | +static char standard_libexec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_LIBEXEC_PREFIX; |
| 247 | +static char standard_bindir_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_BINDIR_PREFIX; |
| 248 | +static char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; |
| 249 | |
| 250 | /* For native compilers, these are well-known paths containing |
| 251 | components that may be provided by the system. For cross |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 252 | @@ -1510,9 +1513,9 @@ static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 253 | static const char *md_exec_prefix = MD_EXEC_PREFIX; |
| 254 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; |
| 255 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; |
| 256 | -static const char *const standard_startfile_prefix_1 |
| 257 | +static char standard_startfile_prefix_1[4096] __attribute__ ((section (".gccrelocprefix"))) |
| 258 | = STANDARD_STARTFILE_PREFIX_1; |
| 259 | -static const char *const standard_startfile_prefix_2 |
| 260 | +static char standard_startfile_prefix_2[4096] __attribute__ ((section (".gccrelocprefix"))) |
| 261 | = STANDARD_STARTFILE_PREFIX_2; |
| 262 | |
| 263 | /* A relative path to be used in finding the location of tools |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 264 | @@ -5952,6 +5955,11 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 265 | } |
| 266 | break; |
| 267 | |
| 268 | + case 'r': |
| 269 | + obstack_grow (&obstack, target_relocatable_prefix, |
| 270 | + strlen (target_relocatable_prefix)); |
| 271 | + break; |
| 272 | + |
| 273 | case 'S': |
| 274 | value = do_spec_1 (startfile_spec, 0, NULL); |
| 275 | if (value != 0) |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 276 | diff --git a/gcc/incpath.c b/gcc/incpath.c |
| 277 | index 9098ab044ab..bfad4ebe382 100644 |
| 278 | --- a/gcc/incpath.c |
| 279 | +++ b/gcc/incpath.c |
| 280 | @@ -131,7 +131,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 281 | int relocated = cpp_relocated (); |
| 282 | size_t len; |
| 283 | |
| 284 | - if (iprefix && (len = cpp_GCC_INCLUDE_DIR_len) != 0) |
| 285 | + if (iprefix && (len = strlen(GCC_INCLUDE_DIRVAR) - 7) != 0) |
| 286 | { |
| 287 | /* Look for directories that start with the standard prefix. |
| 288 | "Translate" them, i.e. replace /usr/local/lib/gcc... with |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 289 | @@ -145,7 +145,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 290 | now. */ |
| 291 | if (sysroot && p->add_sysroot) |
| 292 | continue; |
| 293 | - if (!filename_ncmp (p->fname, cpp_GCC_INCLUDE_DIR, len)) |
| 294 | + if (!filename_ncmp (p->fname, GCC_INCLUDE_DIRVAR, len)) |
| 295 | { |
| 296 | char *str = concat (iprefix, p->fname + len, NULL); |
| 297 | if (p->multilib == 1 && imultilib) |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 298 | @@ -185,7 +185,7 @@ add_standard_paths (const char *sysroot, const char *iprefix, |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 299 | free (sysroot_no_trailing_dir_separator); |
| 300 | } |
| 301 | else if (!p->add_sysroot && relocated |
| 302 | - && !filename_ncmp (p->fname, cpp_PREFIX, cpp_PREFIX_len)) |
| 303 | + && !filename_ncmp (p->fname, PREFIXVAR, strlen(PREFIXVAR))) |
| 304 | { |
| 305 | static const char *relocated_prefix; |
| 306 | char *ostr; |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 307 | @@ -202,12 +202,12 @@ add_standard_paths (const char *sysroot, const char *iprefix, |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 308 | dummy = concat (gcc_exec_prefix, "dummy", NULL); |
| 309 | relocated_prefix |
| 310 | = make_relative_prefix (dummy, |
| 311 | - cpp_EXEC_PREFIX, |
| 312 | - cpp_PREFIX); |
| 313 | + EXEC_PREFIXVAR, |
| 314 | + PREFIXVAR); |
| 315 | free (dummy); |
| 316 | } |
| 317 | ostr = concat (relocated_prefix, |
| 318 | - p->fname + cpp_PREFIX_len, |
| 319 | + p->fname + strlen(PREFIXVAR), |
| 320 | NULL); |
| 321 | str = update_path (ostr, p->component); |
| 322 | free (ostr); |
Andrew Geissler | c182c62 | 2020-05-15 14:13:32 -0500 | [diff] [blame] | 323 | diff --git a/gcc/prefix.c b/gcc/prefix.c |
| 324 | index 1a403e535bd..3257ed3cd3e 100644 |
| 325 | --- a/gcc/prefix.c |
| 326 | +++ b/gcc/prefix.c |
| 327 | @@ -72,7 +72,9 @@ License along with GCC; see the file COPYING3. If not see |
Andrew Geissler | 82c905d | 2020-04-13 13:39:40 -0500 | [diff] [blame] | 328 | #include "prefix.h" |
| 329 | #include "common/common-target.h" |
| 330 | |
| 331 | -static const char *std_prefix = PREFIX; |
| 332 | +static const char PREFIXVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX; |
| 333 | + |
| 334 | +static const char *std_prefix = PREFIXVAR; |
| 335 | |
| 336 | static const char *get_key_value (char *); |
| 337 | static char *translate_name (char *); |
| 338 | @@ -212,7 +214,7 @@ translate_name (char *name) |
| 339 | prefix = getenv (key); |
| 340 | |
| 341 | if (prefix == 0) |
| 342 | - prefix = PREFIX; |
| 343 | + prefix = PREFIXVAR; |
| 344 | |
| 345 | /* We used to strip trailing DIR_SEPARATORs here, but that can |
| 346 | sometimes yield a result with no separator when one was coded |