From 30563d26d6d84d528cda7deda5baa6730cebd948 Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Thu, 9 Jan 2020 08:38:13 +0100
Subject: [PATCH] Pass large parameter by address.

---
 src/mc/inspect/mc_unw.hpp      |  2 +-
 src/mc/mc_global.cpp           | 10 +++++-----
 src/mc/remote/RemoteClient.cpp |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/mc/inspect/mc_unw.hpp b/src/mc/inspect/mc_unw.hpp
index 206c92d5bf..beb19d68b4 100644
--- a/src/mc/inspect/mc_unw.hpp
+++ b/src/mc/inspect/mc_unw.hpp
@@ -68,7 +68,7 @@ public:
   static unw_addr_space_t createUnwindAddressSpace();
 };
 
-void dumpStack(FILE* file, unw_cursor_t cursor);
+void dumpStack(FILE* file, unw_cursor_t* cursor);
 } // namespace mc
 } // namespace simgrid
 
diff --git a/src/mc/mc_global.cpp b/src/mc/mc_global.cpp
index b6d1c098db..2bfdb0cff4 100644
--- a/src/mc/mc_global.cpp
+++ b/src/mc/mc_global.cpp
@@ -106,22 +106,22 @@ void MC_automaton_load(const char *file)
 namespace simgrid {
 namespace mc {
 
-void dumpStack(FILE* file, unw_cursor_t cursor)
+void dumpStack(FILE* file, unw_cursor_t* cursor)
 {
   int nframe = 0;
   char buffer[100];
 
   unw_word_t off;
   do {
-    const char* name = not unw_get_proc_name(&cursor, buffer, 100, &off) ? buffer : "?";
+    const char* name = not unw_get_proc_name(cursor, buffer, 100, &off) ? buffer : "?";
     // Unmangle C++ names:
     auto realname = simgrid::xbt::demangle(name);
 
 #if defined(__x86_64__)
     unw_word_t rip = 0;
     unw_word_t rsp = 0;
-    unw_get_reg(&cursor, UNW_X86_64_RIP, &rip);
-    unw_get_reg(&cursor, UNW_X86_64_RSP, &rsp);
+    unw_get_reg(cursor, UNW_X86_64_RIP, &rip);
+    unw_get_reg(cursor, UNW_X86_64_RSP, &rsp);
     fprintf(file, "  %i: %s (RIP=0x%" PRIx64 " RSP=0x%" PRIx64 ")\n", nframe, realname.get(), (std::uint64_t)rip,
             (std::uint64_t)rsp);
 #else
@@ -129,7 +129,7 @@ void dumpStack(FILE* file, unw_cursor_t cursor)
 #endif
 
     ++nframe;
-  } while(unw_step(&cursor));
+  } while (unw_step(cursor));
 }
 
 }
diff --git a/src/mc/remote/RemoteClient.cpp b/src/mc/remote/RemoteClient.cpp
index e727460f0a..fae057177e 100644
--- a/src/mc/remote/RemoteClient.cpp
+++ b/src/mc/remote/RemoteClient.cpp
@@ -622,7 +622,7 @@ void RemoteClient::dump_stack()
     return;
   }
 
-  simgrid::mc::dumpStack(stderr, cursor);
+  simgrid::mc::dumpStack(stderr, &cursor);
 
   _UPT_destroy(context);
   unw_destroy_addr_space(as);
-- 
2.20.1