author | Stefan Teleman <stefan.teleman@oracle.com> |
Wed, 10 Feb 2016 11:54:12 -0800 | |
changeset 5434 | 9f55c805ce9d |
permissions | -rw-r--r-- |
5434
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# 1. Enable the linker map files provided by clang/llvm for symbol |
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# scope and visibility in shared libraries. |
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# 2. We must use our own linker map file for compatibility with |
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# the GNU linkers and GNU Binutils (libbfd). |
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# Solaris autoconf-based build. |
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# https://llvm.org/bugs/show_bug.cgi?id=24641 |
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--- Makefile.rules 2015-07-17 19:12:32.515872699 -0700 |
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+++ Makefile.rules 2015-07-17 19:17:40.294355307 -0700 |
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@@ -643,6 +643,7 @@ |
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endif |
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ifeq ($(HOST_OS), $(filter $(HOST_OS), SunOS)) |
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LD.Flags += -Wl,-z -Wl,discard-unused=sections |
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+ LD.Flags += -Wl,-M -Wl,$(PROJ_SRC_ROOT)/mapfiles/map.gnu-sections |
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endif |
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endif |
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endif |
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@@ -655,6 +656,10 @@ |
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ifneq ($(HOST_OS), Darwin) |
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ifdef TOOLNAME |
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LD.Flags += $(RPATH) -Wl,'$$ORIGIN/../lib' |
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+ ifeq ($(HOST_OS), $(filter $(HOST_OS), SunOS)) |
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+ LD.Flags += -Wl,-z -Wl,discard-unused=sections |
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+ LD.Flags += -Wl,-M -Wl,$(PROJ_SRC_ROOT)/mapfiles/map.gnu-sections |
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+ endif |
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endif |
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else |
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ifneq ($(DARWIN_MAJVERS),4) |
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@@ -1122,11 +1127,26 @@ |
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clean-local:: |
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-$(Verb) $(RM) -f $(NativeExportsFile) |
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else |
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+ifeq ($(HOST_OS), $(filter $(HOST_OS), SunOS)) |
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+# Solaris ld requires a version script rather than a plain list. |
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+NativeExportsFile := $(ObjDir)/$(notdir $(EXPORTED_SYMBOL_FILE)).map |
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+$(NativeExportsFile): $(EXPORTED_SYMBOL_FILE) $(ObjDir)/.dir |
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+ $(Verb) echo "{" > $@ |
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+ $(Verb) grep -q '[[:alnum:]_]' $< && echo " global:" >> $@ || : |
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+ $(Verb) sed -e 's/$$/;/' -e 's/^/ /' < $< >> $@ |
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+ifneq ($(HOST_OS),OpenBSD) |
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+ $(Verb) echo " local: *;" >> $@ |
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+endif |
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+ $(Verb) echo "};" >> $@ |
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+clean-local:: |
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+ -$(Verb) $(RM) -f $(NativeExportsFile) |
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+else |
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# Default behavior: just use the exports file verbatim. |
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NativeExportsFile := $(EXPORTED_SYMBOL_FILE) |
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endif |
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endif |
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endif |
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+endif |
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|
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# Now add the linker command-line options to use the native export file. |
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|
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@@ -1146,6 +1166,11 @@ |
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SharedLinkOptions += $(NativeExportsFile) |
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endif |
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|
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+# Solaris |
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+ifeq ($(HOST_OS), $(filter $(HOST_OS), SunOS)) |
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+LLVMLibsOptions += -Wl,-M -Wl,$(NativeExportsFile) |
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+endif |
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+ |
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endif |
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|
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############################################################################### |
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--- /dev/null 2015-07-08 19:15:05.000000000 -0700 |
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+++ mapfiles/map.gnu-sections 2015-07-08 19:13:41.905920797 -0700 |
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@@ -0,0 +1,61 @@ |
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+$mapfile_version 2 |
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+ |
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+# Emulate the rules used by the GNU ld and gold linkers for merging input |
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+# sections into output sections in executables and shared objects. From |
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+# Ian Lance Taylor and Cary Coutant. |
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+ |
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+# gcc 4.3 generates the following sorts of section names when it |
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+# needs a section name specific to a function: |
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+# .text.FN |
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+# .rodata.FN |
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+# .sdata2.FN |
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+# .data.FN |
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+# .data.rel.FN |
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+# .data.rel.local.FN |
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+# .data.rel.ro.FN |
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+# .data.rel.ro.local.FN |
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+# .sdata.FN |
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+# .bss.FN |
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+# .sbss.FN |
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+# .tdata.FN |
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+# .tbss.FN |
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+# |
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+# The GNU linker maps all of those to the part before the .FN, |
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+# except that .data.rel.local.FN is mapped to .data, and |
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+# .data.rel.ro.local.FN is mapped to .data.rel.ro. The sections |
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+# beginning with .data.rel.ro.local are grouped together. |
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+# |
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+# For an anonymous namespace, the string FN can contain a '.'. |
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+# |
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+# Also of interest: .rodata.strN.N, .rodata.cstN, both of which the |
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+# GNU linker maps to .rodata. |
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+ |
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+$if _ET_DYN || _ET_EXEC |
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+ |
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104 |
+LOAD_SEGMENT text { |
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+ ASSIGN_SECTION { |
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+ IS_NAME = MATCH(g/.data.rel.local.*/); |
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+ FLAGS = ALLOC !WRITE; |
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108 |
+ OUTPUT_SECTION { NAME = .data }; |
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109 |
+ }; |
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+ ASSIGN_SECTION { |
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111 |
+ IS_NAME = MATCH(r/^\.(text|rodata|sdata2|data\.rel\.ro|data\.rel|data|sdata|bss|sbss|tdata|tbss)\./); |
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112 |
+ FLAGS = ALLOC !WRITE; |
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113 |
+ OUTPUT_SECTION { NAME = MATCHREF(/.${n1}/) }; |
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114 |
+ }; |
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115 |
+}; |
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116 |
+ |
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117 |
+LOAD_SEGMENT data { |
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118 |
+ ASSIGN_SECTION { |
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119 |
+ IS_NAME = MATCH(g/.data.rel.local.*/); |
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120 |
+ FLAGS = ALLOC WRITE; |
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121 |
+ OUTPUT_SECTION { NAME = .data }; |
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|
122 |
+ }; |
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|
123 |
+ ASSIGN_SECTION { |
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124 |
+ IS_NAME = MATCH(r/^\.(text|rodata|sdata2|data\.rel\.ro|data\.rel|data|sdata|bss|sbss|tdata|tbss)\./); |
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|
125 |
+ FLAGS = ALLOC WRITE; |
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|
126 |
+ OUTPUT_SECTION { NAME = MATCHREF(/.${n1}/) }; |
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|
127 |
+ }; |
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parents:
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|
128 |
+}; |
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|
129 |
+ |
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|
130 |
+$endif |