[PATCH 4/5] Default to DWARF5

Mark Wielaard mark@klomp.org
Mon Aug 24 12:56:57 GMT 2020


---
 gcc/common.opt      | 2 +-
 gcc/doc/invoke.texi | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/gcc/common.opt b/gcc/common.opt
index 513125f0c00b..05e4e0638ecb 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -3144,7 +3144,7 @@ Common Driver JoinedOrMissing Negative(gdwarf-)
 Generate debug information in default version of DWARF format.
 
 gdwarf-
-Common Driver Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs)
+Common Driver Joined UInteger Var(dwarf_version) Init(5) Negative(gstabs)
 Generate debug information in DWARF v2 (or later) format.
 
 ggdb
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index e5dddc236d7d..51ffff1fcd25 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -9042,13 +9042,14 @@ possible.
 @opindex gdwarf
 Produce debugging information in DWARF format (if that is supported).
 The value of @var{version} may be either 2, 3, 4 or 5; the default version
-for most targets is 4.  DWARF Version 5 is only experimental.
+for most targets is 5 (with the exception of vxworks and darwin which
+default to version 2).
 
 Note that with DWARF Version 2, some ports require and always
 use some non-conflicting DWARF 3 extensions in the unwind tables.
 
 Version 4 may require GDB 7.0 and @option{-fvar-tracking-assignments}
-for maximum benefit.
+for maximum benefit. Version 5 requires GDB 8.0 or higher.
 
 GCC no longer supports DWARF Version 1, which is substantially
 different than Version 2 and later.  For historical reasons, some
-- 
2.18.4



More information about the Gcc-patches mailing list