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authorManoj Gupta <manojgupta@google.com>2023-04-17 13:33:15 -0700
committerRoland McGrath <mcgrathr@google.com>2023-04-29 00:35:11 -0700
commite0f4b3ec5f36ff90dbea21aab2190fb4565ca67b (patch)
tree4bc6cccc146f7213100c5f1fc9642a3eb63fbdb4 /gdbsupport
parentbc752bfbd98b6c2b02d59ed0a6c7ca88fbf4e3e0 (diff)
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gdb: Fix building with latest libc++
Latest libc++[1] causes transitive include to <locale> when <mutex> or <thread> header is included. This causes gdb to not build[2] since <locale> defines isupper/islower etc. functions that are explicitly macroed-out in safe-ctype.h to prevent their use. Use the suggestion from libc++ to include <locale> internally when building in C++ mode to avoid build errors. Use safe-gdb-ctype.h as the include instead of "safe-ctype.h" to keep this isolated to gdb since rest of binutils does not seem to use much C++. [1]: https://reviews.llvm.org/D144331 [2]: https://issuetracker.google.com/issues/277967395
Diffstat (limited to 'gdbsupport')
-rw-r--r--gdbsupport/common-utils.cc2
-rw-r--r--gdbsupport/gdb-safe-ctype.h5
2 files changed, 5 insertions, 2 deletions
diff --git a/gdbsupport/common-utils.cc b/gdbsupport/common-utils.cc
index 4a96f2c..a2dde63 100644
--- a/gdbsupport/common-utils.cc
+++ b/gdbsupport/common-utils.cc
@@ -20,7 +20,7 @@
#include "common-defs.h"
#include "common-utils.h"
#include "host-defs.h"
-#include "safe-ctype.h"
+#include "gdbsupport/gdb-safe-ctype.h"
#include "gdbsupport/gdb-xfree.h"
void *
diff --git a/gdbsupport/gdb-safe-ctype.h b/gdbsupport/gdb-safe-ctype.h
index f9743ba..bec85c0 100644
--- a/gdbsupport/gdb-safe-ctype.h
+++ b/gdbsupport/gdb-safe-ctype.h
@@ -23,7 +23,9 @@
/* After safe-ctype.h is included, we can no longer use the host's
ctype routines. Trying to do so results in compile errors. Code
that uses safe-ctype.h that wants to refer to the locale-dependent
- ctype functions must call these wrapper versions instead. */
+ ctype functions must call these wrapper versions instead.
+ When compiling in C++ mode, also include <locale> before "safe-ctype.h"
+ which also defines is* functions. */
static inline int
gdb_isprint (int ch)
@@ -41,6 +43,7 @@ gdb_isprint (int ch)
#undef ISUPPER
#undef ISXDIGIT
+#include <locale>
#include "safe-ctype.h"
#endif