Fat LTO objects

OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/libsigsegv?expand=0&rev=21

libsigsegv-2.12-lto.dif

@@ -1,24 +1,19 @@
+---
+ configure |   42 +++++++++++++++++++++++++++---------------
+ 1 file changed, 27 insertions(+), 15 deletions(-)
+
 --- configure
-+++ configure	2019-04-25 11:02:56.690127942 +0000
++++ configure	2019-04-25 13:27:06.323370748 +0000
 @@ -12587,7 +12587,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, siginfo_t *sip, void *ucp)
  {
    void *fault_address = (void *) (sip->si_addr);
-@@ -12642,6 +12642,8 @@ action.sa_sigaction = &sigsegv_handler;
+@@ -12683,7 +12683,9 @@ else
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -12683,7 +12685,9 @@ else
  
  
  #include <signal.h>
@@ -28,7 +23,7 @@
  void sigsegv_handler (int sig, struct sigcontext sc)
  {
    void *fault_address = (void *) (sc.cr2);
-@@ -12718,7 +12722,9 @@ else
+@@ -12718,7 +12720,9 @@ else
  #if HAVE_SYS_SIGNAL_H
  # include <sys/signal.h>
  #endif
@@ -38,43 +33,25 @@
  #include <sys/types.h>
  #include <sys/mman.h>
  #if HAVE_MMAP_DEVZERO
-@@ -12750,7 +12756,7 @@ static int zero_fd;
+@@ -12750,7 +12754,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, struct sigcontext sc)
  {
    void *fault_address = (void *) (sc.cr2);
-@@ -12807,6 +12813,8 @@ int main ()
+@@ -12915,7 +12919,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -12915,7 +12923,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, unsigned int more)
  {
    void *fault_address = (void *) (((unsigned long *) &more) [21]);
-@@ -12972,6 +12980,8 @@ int main ()
+@@ -13013,7 +13017,9 @@ else
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13013,7 +13023,9 @@ else
  
  
  #include <signal.h>
@@ -84,7 +61,7 @@
  #include "$srcdir/src/fault-linux-m68k-old.c"
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
-@@ -13049,7 +13061,9 @@ else
+@@ -13049,7 +13055,9 @@ else
  #if HAVE_SYS_SIGNAL_H
  # include <sys/signal.h>
  #endif
@@ -94,25 +71,16 @@
  #include "$srcdir/src/fault-linux-m68k-old.c"
  #include <sys/types.h>
  #include <sys/mman.h>
-@@ -13082,7 +13096,7 @@ static int zero_fd;
+@@ -13082,7 +13090,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (get_fault_addr (scp));
-@@ -13139,6 +13153,8 @@ int main ()
+@@ -13180,7 +13188,9 @@ else
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13180,7 +13196,9 @@ else
  
  
  #include <signal.h>
@@ -122,7 +90,7 @@
  void sigsegv_handler (int sig, struct sigcontext *scp)
  {
    void *fault_address = (void *) (scp->regs->dar);
-@@ -13215,7 +13233,9 @@ else
+@@ -13215,7 +13225,9 @@ else
  #if HAVE_SYS_SIGNAL_H
  # include <sys/signal.h>
  #endif
@@ -132,201 +100,102 @@
  #include <sys/types.h>
  #include <sys/mman.h>
  #if HAVE_MMAP_DEVZERO
-@@ -13247,7 +13267,7 @@ static int zero_fd;
+@@ -13247,7 +13259,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, struct sigcontext *scp)
  {
    void *fault_address = (void *) (scp->regs->dar);
-@@ -13304,6 +13324,8 @@ int main ()
+@@ -13413,7 +13425,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13413,7 +13435,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, siginfo_t *sip, void *ucp)
  {
    void *fault_address = (void *) (sip->si_ptr);
-@@ -13468,6 +13490,8 @@ action.sa_sigaction = &sigsegv_handler;
+@@ -13576,7 +13588,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13576,7 +13600,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp, void *addr)
  {
    void *fault_address = (void *) (addr);
-@@ -13633,6 +13657,8 @@ int main ()
+@@ -13741,7 +13753,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13741,7 +13767,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) ((unsigned long) scp->sc_badvaddr);
-@@ -13798,6 +13824,8 @@ int main ()
+@@ -13916,7 +13928,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -13916,7 +13944,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (GET_CR21 (scp->sc_sl.sl_ss));
-@@ -13974,6 +14002,8 @@ int main ()
+@@ -14081,7 +14093,7 @@ static int zero_fd;
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-   /* Check that the handler was called only once.  */
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   if (handler_called != 1)
-     exit (1);
-   /* Test passed!  */
-@@ -14081,7 +14111,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (scp->sc_traparg_a0);
-@@ -14138,6 +14168,8 @@ int main ()
+@@ -14246,7 +14258,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -14246,7 +14278,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (get_fault_addr (scp));
-@@ -14303,6 +14335,8 @@ int main ()
+@@ -14411,7 +14423,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -14411,7 +14445,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called = 0;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (scp->sc_jmpbuf.jmp_context.o_vaddr);
-@@ -14468,6 +14502,8 @@ int main ()
+@@ -14577,7 +14589,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -14577,7 +14613,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, siginfo_t *sip, ucontext_t *ucp)
  {
    void *fault_address = (void *) (get_fault_addr (sip, ucp));
-@@ -14632,6 +14668,8 @@ action.sa_sigaction = &sigsegv_handler;
+@@ -14741,7 +14753,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -14741,7 +14779,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (get_fault_addr (scp));
-@@ -14798,6 +14836,8 @@ int main ()
+@@ -14907,7 +14919,7 @@ static int zero_fd;
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);
-@@ -14907,7 +14947,7 @@ static int zero_fd;
  # define SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS 0UL
  #endif
  unsigned long page;
 -int handler_called = 0;
-+sig_atomic_t handler_called;
++volatile sig_atomic_t handler_called = 0;
  void sigsegv_handler (int sig, int code, struct sigcontext *scp)
  {
    void *fault_address = (void *) (code);
-@@ -14964,6 +15004,8 @@ int main ()
-   crasher (page);
-   /* The second write access should not invoke the handler.  */
-   crasher (page);
-+  /* LTO may move resulting assembler code around */
-+  __asm__ __volatile__("": : :"memory");
-   /* Check that the handler was called only once.  */
-   if (handler_called != 1)
-     exit (1);

libsigsegv.changes

@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Apr 26 11:19:16 UTC 2019 - Dr. Werner Fink <werner@suse.de>
+
+- Allow LTO but only FAT LTO OBJECTS (boo#1133245)
+
 -------------------------------------------------------------------
 Thu Apr 25 11:18:04 UTC 2019 - Dr. Werner Fink <werner@suse.de>
 

libsigsegv.spec

@@ -69,14 +69,22 @@ available.
 
 %prep
 %setup -q
-%patch0
+%patch0 -b .p0
 
 %build
-%define _lto_cflags %{nil}
+%add_optflags -g3 -D_DEFAULT_SOURCE -D_XOPEN_SOURCE
-%add_optflags -D_DEFAULT_SOURCE -D_XOPEN_SOURCE
+%if 0%(case "%optflags" in (*-flto*) echo 1;; esac)
+%global optflags %(echo -n  "%optflags" | sed -r "s@-flto@-ffat-lto-objects@")
+%endif
 %configure \
+	--with-gnu-ld   \
 	--enable-shared \
 	--enable-static
+sed -ri 's@^((old_striplib|striplib)=)".*"@\1""@' libtool
+sed -ri 's@^(hardcode_libdir_flag_spec=)".*"@\1""@' libtool
+mkdir bin/
+ln -sf /bin/true bin/strip
+PATH=${PWD}/bin:$PATH; export PATH
 make %{?_smp_mflags}
 
 %install