Merging r339217:
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r339217 | cdavis | 2018-08-08 06:21:24 +0200 (Wed, 08 Aug 2018) | 11 lines

[libunwind] Fix pointer-to-integer cast warnings on LLP64.

Summary:
`long` is too short on LLP64. We have to use `intptr_t` to
avoid truncating pointers.

Reviewers: mstorsjo, rnk, compnerd, smeenai

Subscribers: christof, cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D50412
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git-svn-id: https://llvm.org/svn/llvm-project/libunwind/branches/release_70@339222 91177308-0d34-0410-b5e6-96231b3b80d8

src/UnwindLevel1-gcc-ext.c

diff --git a/src/UnwindLevel1-gcc-ext.c b/src/UnwindLevel1-gcc-ext.c
index 10619ba..38f141e 100644
--- a/src/UnwindLevel1-gcc-ext.c
+++ b/src/UnwindLevel1-gcc-ext.c
@@ -33,9 +33,9 @@
                        (void *)exception_object,
                        (long)exception_object->unwinder_cache.reserved1);
 #else
-  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%ld",
+  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%" PRIdPTR,
                        (void *)exception_object,
-                       (long)exception_object->private_1);
+                       (intptr_t)exception_object->private_1);
 #endif
 
 #if defined(_LIBUNWIND_ARM_EHABI)
@@ -92,9 +92,9 @@
   unw_proc_info_t info;
   unw_getcontext(&uc);
   unw_init_local(&cursor, &uc);
-  unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(long) pc);
+  unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(intptr_t) pc);
   if (unw_get_proc_info(&cursor, &info) == UNW_ESUCCESS)
-    return (void *)(long) info.start_ip;
+    return (void *)(intptr_t) info.start_ip;
   else
     return NULL;
 }
@@ -190,14 +190,14 @@
   unw_proc_info_t info;
   unw_getcontext(&uc);
   unw_init_local(&cursor, &uc);
-  unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(long) pc);
+  unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(intptr_t) pc);
   unw_get_proc_info(&cursor, &info);
   bases->tbase = (uintptr_t)info.extra;
   bases->dbase = 0; // dbase not used on Mac OS X
   bases->func = (uintptr_t)info.start_ip;
   _LIBUNWIND_TRACE_API("_Unwind_Find_FDE(pc=%p) => %p", pc,
-                  (void *)(long) info.unwind_info);
-  return (void *)(long) info.unwind_info;
+                  (void *)(intptr_t) info.unwind_info);
+  return (void *)(intptr_t) info.unwind_info;
 }
 
 /// Returns the CFA (call frame area, or stack pointer at start of function)

src/UnwindLevel1.c

diff --git a/src/UnwindLevel1.c b/src/UnwindLevel1.c
index 518577b..04d62b8 100644
--- a/src/UnwindLevel1.c
+++ b/src/UnwindLevel1.c
@@ -287,7 +287,7 @@
     // If there is a personality routine, tell it we are unwinding.
     if (frameInfo.handler != 0) {
       __personality_routine p =
-          (__personality_routine)(long)(frameInfo.handler);
+          (__personality_routine)(intptr_t)(frameInfo.handler);
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase2_forced(ex_ojb=%p): calling personality function %p",
           (void *)exception_object, (void *)(uintptr_t)p);