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Implement --push-state/--pop-state.

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gold/
	PR gold/18989
	* options.cc (General_options::object_format_to_string): New function.
	(General_options::copy_from_posdep_options): New function.
	(General_options::parse_push_state): New function.
	(General_options::parse_pop_state): New function.
	* options.h (--push-state, --pop-state): New options.
	(General_options::object_format_to_string): New method.
	(General_options::set_incremental_disposition): New method.
	(General_options::copy_from_posdep_options): New method.
	(General_options::options_stack_): New data member.
This commit is contained in:
Cary Coutant 2016-12-01 16:32:38 -08:00
parent 6a67d49e55
commit 376c3ecd17
3 changed files with 80 additions and 1 deletions
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13
gold/ChangeLog
View File

@ -1,3 +1,16 @@
2016-12-01 Cary Coutant <ccoutant@gmail.com>
PR gold/18989
* options.cc (General_options::object_format_to_string): New function.
(General_options::copy_from_posdep_options): New function.
(General_options::parse_push_state): New function.
(General_options::parse_pop_state): New function.
* options.h (--push-state, --pop-state): New options.
(General_options::object_format_to_string): New method.
(General_options::set_incremental_disposition): New method.
(General_options::copy_from_posdep_options): New method.
(General_options::options_stack_): New data member.
2016-12-01 Cary Coutant <ccoutant@gmail.com>
PR gold/20807

47
gold/options.cc
View File

@ -689,6 +689,20 @@ General_options::string_to_object_format(const char* arg)
}
}
const char*
General_options::object_format_to_string(General_options::Object_format fmt)
{
switch (fmt)
{
case General_options::OBJECT_FORMAT_ELF:
return "elf";
case General_options::OBJECT_FORMAT_BINARY:
return "binary";
default:
gold_unreachable();
}
}
void
General_options::parse_fix_v4bx(const char*, const char*,
Command_line*)
@ -715,6 +729,39 @@ General_options::parse_EL(const char*, const char*, Command_line*)
this->endianness_ = ENDIANNESS_LITTLE;
}
void
General_options::copy_from_posdep_options(
const Position_dependent_options& posdep)
{
this->set_as_needed(posdep.as_needed());
this->set_Bdynamic(posdep.Bdynamic());
this->set_format(
General_options::object_format_to_string(posdep.format_enum()));
this->set_whole_archive(posdep.whole_archive());
this->set_incremental_disposition(posdep.incremental_disposition());
}
void
General_options::parse_push_state(const char*, const char*, Command_line*)
{
Position_dependent_options* posdep = new Position_dependent_options(*this);
this->options_stack_.push_back(posdep);
}
void
General_options::parse_pop_state(const char*, const char*, Command_line*)
{
if (this->options_stack_.empty())
{
gold::gold_error(_("unbalanced --push-state/--pop-state"));
return;
}
Position_dependent_options* posdep = this->options_stack_.back();
this->options_stack_.pop_back();
this->copy_from_posdep_options(*posdep);
delete posdep;
}
} // End namespace gold.
namespace

21
gold/options.h
View File

@ -1133,6 +1133,11 @@ class General_options
N_("Print symbols defined and used for each input"),
N_("FILENAME"));
DEFINE_special(push_state, options::TWO_DASHES, '\0',
N_("Save the state of flags related to input files"), NULL);
DEFINE_special(pop_state, options::TWO_DASHES, '\0',
N_("Restore the state of flags related to input files"), NULL);
// q
DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false,
@ -1516,6 +1521,10 @@ class General_options
static Object_format
string_to_object_format(const char* arg);
// Convert an Object_format to string.
static const char*
object_format_to_string(Object_format);
// Note: these functions are not very fast.
Object_format format_enum() const;
Object_format oformat_enum() const;
@ -1609,6 +1618,10 @@ class General_options
incremental_disposition() const
{ return this->incremental_disposition_; }
void
set_incremental_disposition(Incremental_disposition disp)
{ this->incremental_disposition_ = disp; }
// The disposition to use for startup files (those that precede the
// first --incremental-changed, etc. option).
Incremental_disposition
@ -1740,6 +1753,9 @@ class General_options
void
add_plugin_option(const char* opt);
void
copy_from_posdep_options(const Position_dependent_options&);
// Whether we printed version information.
bool printed_version_;
// Whether to mark the stack as executable.
@ -1783,6 +1799,8 @@ class General_options
Endianness endianness_;
// What local symbols to discard.
Discard_locals discard_locals_;
// Stack of saved options for --push-state/--pop-state.
std::vector<Position_dependent_options*> options_stack_;
};
// The position-dependent options. We use this to store the state of
@ -1813,7 +1831,8 @@ class Position_dependent_options
= Position_dependent_options::default_options_)
{ copy_from_options(options); }
void copy_from_options(const General_options& options)
void
copy_from_options(const General_options& options)
{
this->set_as_needed(options.as_needed());
this->set_Bdynamic(options.Bdynamic());