mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2025-01-24 02:14:28 +00:00
ce0d197204
===================================================================
RCS file: /cvs/src/src/gold/arm.cc,v
retrieving revision 1.116
diff -u -u -p -r1.116 arm.cc
--- gold/arm.cc 3 Aug 2010 14:07:12 -0000 1.116
+++ gold/arm.cc 6 Aug 2010 07:59:30 -0000
@@ -10290,11 +10290,11 @@ Target_arm<big_endian>::merge_object_att
out_attr[i].set_int_value(in_attr[i].int_value());
break;
case elfcpp::Tag_ABI_PCS_wchar_t:
- // FIXME: Make it possible to turn off this warning.
if (out_attr[i].int_value()
&& in_attr[i].int_value()
&& out_attr[i].int_value() != in_attr[i].int_value()
- && parameters->options().warn_mismatch())
+ && parameters->options().warn_mismatch()
+ && parameters->options().wchar_size_warning())
{
gold_warning(_("%s uses %u-byte wchar_t yet the output is to "
"use %u-byte wchar_t; use of wchar_t values "
@@ -10315,10 +10315,10 @@ Target_arm<big_endian>::merge_object_att
// Use whatever requirements the new object has.
out_attr[i].set_int_value(in_attr[i].int_value());
}
- // FIXME: Make it possible to turn off this warning.
else if (in_attr[i].int_value() != elfcpp::AEABI_enum_forced_wide
&& out_attr[i].int_value() != in_attr[i].int_value()
- && parameters->options().warn_mismatch())
+ && parameters->options().warn_mismatch()
+ && parameters->options().enum_size_warning())
{
unsigned int in_value = in_attr[i].int_value();
unsigned int out_value = out_attr[i].int_value();
Index: gold/options.h
===================================================================
RCS file: /cvs/src/src/gold/options.h,v
retrieving revision 1.147
diff -u -u -p -r1.147 options.h
--- gold/options.h 1 Jun 2010 23:37:57 -0000 1.147
+++ gold/options.h 6 Aug 2010 07:59:30 -0000
@@ -722,6 +722,10 @@ class General_options
DEFINE_special(EL, options::ONE_DASH, '\0',
N_("Link little-endian objects."), NULL);
+ DEFINE_bool(enum_size_warning, options::TWO_DASHES, '\0', true, NULL,
+ N_("(ARM only) Do not warn about objects with incompatible "
+ "enum sizes"));
+
DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false,
N_("Treat warnings as errors"),
N_("Do not treat warnings as errors"));
@@ -1038,6 +1042,10 @@ class General_options
N_("Report unresolved symbols as errors"),
NULL, true);
+ DEFINE_bool(wchar_size_warning, options::TWO_DASHES, '\0', true, NULL,
+ N_("(ARM only) Do not warn about objects with incompatible "
+ "wchar_t sizes"));
+
DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false,
N_("Include all archive contents"),
N_("Include only needed archive contents"));
gold is an ELF linker. It is intended to have complete support for
ELF and to run as fast as possible on modern systems. For normal use
it is a drop-in replacement for the older GNU linker.
gold is part of the GNU binutils. See ../binutils/README for more
general notes, including where to send bug reports.
gold was originally developed at Google, and was contributed to the
Free Software Foundation in March 2008. At Google it was designed by
Ian Lance Taylor, with major contributions by Cary Coutant, Craig
Silverstein, and Andrew Chatham.
The existing GNU linker manual is intended to be accurate
documentation for features which gold supports. gold supports most of
the features of the GNU linker for ELF targets. Notable
omissions--features of the GNU linker not currently supported in
gold--are:
* MEMORY regions in linker scripts
* MRI compatible linker scripts
* cross-reference reports (--cref)
* various other minor options
Notes on the code
=================
These are some notes which may be helpful to people working on the
source code of gold itself.
gold is written in C++. It is a GNU program, and therefore follows
the GNU formatting standards as modified for C++. Source documents in
order of decreasing precedence:
http://www.gnu.org/prep/standards/
http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/C++STYLE
http://www.zembu.com/eng/procs/c++style.html
The linker is intended to have complete support for cross-compilation,
while still supporting the normal case of native linking as fast as
possible. In order to do this, many classes are actually templates
whose parameter is the ELF file class (e.g., 32 bits or 64 bits). The
C++ code is the same, but we don't pay the execution time cost of
always using 64-bit integers if the target is 32 bits. Many of these
class templates also have an endianness parameter: true for
big-endian, false for little-endian.
The linker is multi-threaded. The Task class represents a single unit
of work. Task objects are stored on a single Workqueue object. Tasks
communicate via Task_token objects. Task_token objects are only
manipulated while holding the master Workqueue lock. Relatively few
mutexes are used.
Build requirements
==================
The gold source code uses templates heavily. Building it requires a
recent version of g++. g++ 4.0.3 is known to work. g++ 3.2 and g++
3.4.3 are known to fail.
The linker script parser uses features which are only in newer
versions of bison. bison 2.3 is known to work. bison 1.26 is known
to fail. If you are building gold from an official binutils release,
the bison output should already be included.