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[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / package / elfutils / 0007-Allow-disabling-symbol-versioning-at-configure-time.patch

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/elfutils/0007-Allow-disabling-symbol-versioning-at-configure-time.patch b/cirros-testvm/src-cirros/buildroot-2015.05/package/elfutils/0007-Allow-disabling-symbol-versioning-at-configure-time.patch
new file mode 100644 (file)
index 0000000..7378f26
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/package/elfutils/0007-Allow-disabling-symbol-versioning-at-configure-time.patch
@@ -0,0 +1,139 @@
+From bafacacaf7659a4933604662daba26a480b29a8d Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Thu, 23 Apr 2015 20:46:59 +0200
+Subject: [PATCH] Allow disabling symbol versioning at configure time
+
+Due to missing symbol versioning support in uClibc calls to versioned
+functions that internally call different version of themselves results
+in infinite recursion.
+
+Introduce macro SYMBOL_VERSIONING and use it instead of plain SHARED to
+decide whether symbol versioning is needed. Control this macro
+definition with new configure option --disable-symbol-versioning.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+Signed-off-by: Mark Wielaard <mjw@redhat.com>
+---
+Backported from: bafacacaf7659a4933604662daba26a480b29a8d
+Changes to ChangeLogs are dropped.
+
+ config/eu.am                   | 10 ++++++++--
+ configure.ac                   |  7 +++++++
+ lib/eu-config.h                |  6 +++---
+ libdwfl/core-file.c            |  2 +-
+ libdwfl/dwfl_module_build_id.c |  2 +-
+ libdwfl/dwfl_report_elf.c      |  2 +-
+
+diff --git a/config/eu.am b/config/eu.am
+index faf8add..6103a3e 100644
+--- a/config/eu.am
++++ b/config/eu.am
+@@ -38,16 +38,22 @@ AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \
+ 
+ COMPILE.os = $(filter-out -fprofile-arcs -ftest-coverage, $(COMPILE))
+ 
++DEFS.os = -DPIC -DSHARED
++if SYMBOL_VERSIONING
++DEFS.os += -DSYMBOL_VERSIONING
++else
++endif
++
+ %.os: %.c %.o
+ if AMDEP
+-      if $(COMPILE.os) -c -o $@ -fpic -DPIC -DSHARED -MT $@ -MD -MP \
++      if $(COMPILE.os) -c -o $@ -fpic $(DEFS.os) -MT $@ -MD -MP \
+         -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \
+       then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \
+            rm -f "$(DEPDIR)/$*.Tpo"; \
+       else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \
+       fi
+ else
+-      $(COMPILE.os) -c -o $@ -fpic -DPIC -DSHARED $<
++      $(COMPILE.os) -c -o $@ -fpic $(DEFS.os) $<
+ endif
+ 
+ CLEANFILES = *.gcno *.gcda
+diff --git a/configure.ac b/configure.ac
+index ed2c964..be01573 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -241,6 +241,13 @@ AS_HELP_STRING([--disable-textrelcheck],
+                [Disable textrelcheck being a fatal error]))
+ AM_CONDITIONAL(FATAL_TEXTREL, [test "x$enable_textrelcheck" != "xno"])
+ 
++AC_ARG_ENABLE([symbol-versioning],
++AS_HELP_STRING([--disable-symbol-versioning],
++               [Disable symbol versioning in shared objects]))
++AM_CONDITIONAL(SYMBOL_VERSIONING, [test "x$enable_symbol_versioning" != "xno"])
++AS_IF([test "x$enable_symbol_versioning" = "xno"],
++      [AC_MSG_WARN([Disabling symbol versioning breaks ABI compatibility.])])
++
+ dnl The directories with content.
+ 
+ dnl Documentation.
+diff --git a/lib/eu-config.h b/lib/eu-config.h
+index 3afff26..5bb21c1 100644
+--- a/lib/eu-config.h
++++ b/lib/eu-config.h
+@@ -163,7 +163,7 @@ asm (".section predict_data, \"aw\"; .previous\n"
+ #define ELFUTILS_HEADER(name) <lib##name.h>
+ 
+ 
+-#ifdef SHARED
++#ifdef SYMBOL_VERSIONING
+ # define OLD_VERSION(name, version) \
+   asm (".globl _compat." #version "." #name "\n" \
+        "_compat." #version "." #name " = " #name "\n" \
+@@ -181,8 +181,8 @@ asm (".section predict_data, \"aw\"; .previous\n"
+ # define OLD_VERSION(name, version) /* Nothing for static linking.  */
+ # define NEW_VERSION(name, version) /* Nothing for static linking.  */
+ # define COMPAT_VERSION_NEWPROTO(name, version, prefix) \
+-  error "should use #ifdef SHARED"
+-# define COMPAT_VERSION(name, version, prefix) error "should use #ifdef SHARED"
++  error "should use #ifdef SYMBOL_VERSIONING"
++# define COMPAT_VERSION(name, version, prefix) error "should use #ifdef SYMBOL_VERSIONING"
+ #endif
+ 
+ 
+diff --git a/libdwfl/core-file.c b/libdwfl/core-file.c
+index 324e9d2..bbe0899 100644
+--- a/libdwfl/core-file.c
++++ b/libdwfl/core-file.c
+@@ -588,7 +588,7 @@ dwfl_core_file_report (Dwfl *dwfl, Elf *elf, const char *executable)
+ INTDEF (dwfl_core_file_report)
+ NEW_VERSION (dwfl_core_file_report, ELFUTILS_0.158)
+ 
+-#ifdef SHARED
++#ifdef SYMBOL_VERSIONING
+ int _compat_without_executable_dwfl_core_file_report (Dwfl *dwfl, Elf *elf);
+ COMPAT_VERSION_NEWPROTO (dwfl_core_file_report, ELFUTILS_0.146,
+                        without_executable)
+diff --git a/libdwfl/dwfl_module_build_id.c b/libdwfl/dwfl_module_build_id.c
+index 350bbf8..c9a42ca 100644
+--- a/libdwfl/dwfl_module_build_id.c
++++ b/libdwfl/dwfl_module_build_id.c
+@@ -101,7 +101,7 @@ dwfl_module_build_id (Dwfl_Module *mod,
+ INTDEF (dwfl_module_build_id)
+ NEW_VERSION (dwfl_module_build_id, ELFUTILS_0.138)
+ 
+-#ifdef SHARED
++#ifdef SYMBOL_VERSIONING
+ COMPAT_VERSION (dwfl_module_build_id, ELFUTILS_0.130, vaddr_at_end)
+ 
+ int
+diff --git a/libdwfl/dwfl_report_elf.c b/libdwfl/dwfl_report_elf.c
+index 3a4ae2e..624284c 100644
+--- a/libdwfl/dwfl_report_elf.c
++++ b/libdwfl/dwfl_report_elf.c
+@@ -321,7 +321,7 @@ dwfl_report_elf (Dwfl *dwfl, const char *name, const char *file_name, int fd,
+ INTDEF (dwfl_report_elf)
+ NEW_VERSION (dwfl_report_elf, ELFUTILS_0.156)
+ 
+-#ifdef SHARED
++#ifdef SYMBOL_VERSIONING
+ Dwfl_Module *
+   _compat_without_add_p_vaddr_dwfl_report_elf (Dwfl *dwfl, const char *name,
+                                              const char *file_name, int fd,
+-- 
+1.8.1.4
+