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riscv-gcc-1
Commit 98095aa3 by Jakub Jelinek Committed by Jakub Jelinek
Options

common.opt (flag_debug_types_section): Default to 0. 

	* common.opt (flag_debug_types_section): Default to 0.
	(dwarf_version): Default to 4.
	(dwarf_record_gcc_switches): Default to 1.
	(dwarf_strict): Default to 0.
	* toplev.c (process_options): Don't handle dwarf_strict
	or dwarf_version here.
	* config/vxworks.c (vxworks_override_options): Don't
	test whether dwarf_strict or dwarf_version are negative,
	instead test !global_options_set.x_dwarf_*.
	* config/darwin.c (darwin_override_options): Default to
	dwarf_version 2.
	* doc/invoke.texi: Note that -gdwarf-4, -grecord-gcc-switches
	and -fno-debug-types-section are now the default.

From-SVN: r186835
parent 9c8305f8
Showing with 36 additions and 24 deletions
gcc/ChangeLog
2012-04-25 Jakub Jelinek <jakub@redhat.com>
* common.opt (flag_debug_types_section): Default to 0.
(dwarf_version): Default to 4.
(dwarf_record_gcc_switches): Default to 1.
(dwarf_strict): Default to 0.
* toplev.c (process_options): Don't handle dwarf_strict
or dwarf_version here.
* config/vxworks.c (vxworks_override_options): Don't
test whether dwarf_strict or dwarf_version are negative,
instead test !global_options_set.x_dwarf_*.
* config/darwin.c (darwin_override_options): Default to
dwarf_version 2.
* doc/invoke.texi: Note that -gdwarf-4, -grecord-gcc-switches
and -fno-debug-types-section are now the default.
2012-04-25 Jan Hubicka <jh@suse.cz>
* cgraphunit.c: Update toplevel comment.
......
gcc/common.opt
......@@ -967,7 +967,7 @@ Common Joined RejectNegative Var(common_deferred_options) Defer
Map one directory name to another in debug information
fdebug-types-section
Common Report Var(flag_debug_types_section) Init(1)
Common Report Var(flag_debug_types_section) Init(0)
Output .debug_types section when using DWARF v4 debuginfo.
; Nonzero for -fdefer-pop: don't pop args after each function call
......@@ -2212,7 +2212,7 @@ Common JoinedOrMissing Negative(gdwarf-)
Generate debug information in COFF format
gdwarf-
Common Joined UInteger Var(dwarf_version) Init(-1) Negative(gstabs)
Common Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs)
Generate debug information in DWARF v2 (or later) format
ggdb
......@@ -2220,7 +2220,7 @@ Common JoinedOrMissing
Generate debug information in default extended format
gno-record-gcc-switches
Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(0)
Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(1)
Don't record gcc command line switches in DWARF DW_AT_producer.
grecord-gcc-switches
......@@ -2236,7 +2236,7 @@ Common JoinedOrMissing Negative(gvms)
Generate debug information in extended STABS format
gno-strict-dwarf
Common RejectNegative Var(dwarf_strict,0) Init(-1)
Common RejectNegative Var(dwarf_strict,0) Init(0)
Emit DWARF additions beyond selected version
gstrict-dwarf
......
gcc/config/darwin.c
/* Functions for generic Darwin as target machine for GNU C compiler.
Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009, 2010, 2011
2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
......@@ -2973,6 +2973,8 @@ darwin_override_options (void)
workaround for tool bugs. */
if (!global_options_set.x_dwarf_strict)
dwarf_strict = 1;
if (!global_options_set.x_dwarf_version)
dwarf_version = 2;
/* Do not allow unwind tables to be generated by default for m32.
fnon-call-exceptions will override this, regardless of what we do. */
......
gcc/config/vxworks.c
/* Common VxWorks target definitions for GNU compiler.
Copyright (C) 2007, 2008, 2010
Copyright (C) 2007, 2008, 2010, 2012
Free Software Foundation, Inc.
Contributed by CodeSourcery, Inc.
......@@ -147,9 +147,9 @@ vxworks_override_options (void)
/* Default to strict dwarf-2 to prevent potential difficulties observed with
non-gdb debuggers on extensions > 2. */
if (dwarf_strict < 0)
if (!global_options_set.x_dwarf_strict)
dwarf_strict = 1;
if (dwarf_version < 0)
if (!global_options_set.x_dwarf_version)
dwarf_version = 2;
}
gcc/doc/invoke.texi
......@@ -4781,14 +4781,16 @@ normally emits debugging information for classes because using this
option increases the size of debugging information by as much as a
factor of two.
@item -fno-debug-types-section
@opindex fno-debug-types-section
@item -fdebug-types-section
@opindex fdebug-types-section
By default when using DWARF Version 4 or higher, type DIEs are put into
@opindex fno-debug-types-section
When using DWARF Version 4 or higher, type DIEs can be put into
their own @code{.debug_types} section instead of making them part of the
@code{.debug_info} section. It is more efficient to put them in a separate
comdat sections since the linker can then remove duplicates.
But not all DWARF consumers support @code{.debug_types} sections yet.
But not all DWARF consumers support @code{.debug_types} sections yet
and on some objects @code{.debug_types} produces larger instead of smaller
debugging information.
@item -gstabs+
@opindex gstabs+
......@@ -4819,7 +4821,8 @@ assembler (GAS) to fail with an error.
@item -gdwarf-@var{version}
@opindex gdwarf-@var{version}
Produce debugging information in DWARF format (if that is supported).
The value of @var{version} may be either 2, 3 or 4; the default version is 2.
The value of @var{version} may be either 2, 3 or 4; the default version
for most targets is 4.
Note that with DWARF Version 2, some ports require and always
use some non-conflicting DWARF 3 extensions in the unwind tables.
......@@ -4834,12 +4837,12 @@ compiler that may affect code generation to be appended to the
DW_AT_producer attribute in DWARF debugging information. The options
are concatenated with spaces separating them from each other and from
the compiler version. See also @option{-frecord-gcc-switches} for another
way of storing compiler options into the object file.
way of storing compiler options into the object file. This is the default.
@item -gno-record-gcc-switches
@opindex gno-record-gcc-switches
Disallow appending command-line options to the DW_AT_producer attribute
in DWARF debugging information. This is the default.
in DWARF debugging information.
@item -gstrict-dwarf
@opindex gstrict-dwarf
......
gcc/toplev.c
......@@ -1375,15 +1375,6 @@ process_options (void)
}
}
/* Unless over-ridden for the target, assume that all DWARF levels
may be emitted, if DWARF2_DEBUG is selected. */
if (dwarf_strict < 0)
dwarf_strict = 0;
/* And select a default dwarf level. */
if (dwarf_version < 0)
dwarf_version = 2;
/* A lot of code assumes write_symbols == NO_DEBUG if the debugging
level is 0. */
if (debug_info_level == DINFO_LEVEL_NONE)
......
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