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authorIan Lance Taylor <ian@airs.com>2008-03-29 08:09:55 +0000
committerIan Lance Taylor <ian@airs.com>2008-03-29 08:09:55 +0000
commitab794b6bda9482bd406d05d592849639887036d5 (patch)
treecd9ac945653fae1d114619141e8df95a2a1b4762 /gold
parent479f65031f8b864bf4973b8495761aa769a087cf (diff)
downloadgdb-ab794b6bda9482bd406d05d592849639887036d5.zip
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* output.cc
(Output_section::Input_section_sort_entry::has_priority): New function. (Output_section::Input_section_sort_entry::match_file_name): New function. (Output_section::Input_section_sort_entry::match_section_name): Remove. (Output_section::Input_section_sort_entry::match_section_name_prefix): Remove. (Output_section::Input_section_sort_entry::match_section_file): Remove. (Output_section::Input_section_sort_compare::operator()): Rewrite using new Input_section_sort_entry functions. Sort crtbegin and crtend first. Sort sections with no priority before sections with a priority. * testsuite/initpri1.c (d3): Check j != 4. (cd5): New constructor/destructor function. (main): Check j != 2.
Diffstat (limited to 'gold')
-rw-r--r--gold/ChangeLog19
-rw-r--r--gold/output.cc95
-rw-r--r--gold/testsuite/initpri1.c12
3 files changed, 63 insertions, 63 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index bdbac5d..9a213c2 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,24 @@
2008-03-29 Ian Lance Taylor <iant@google.com>
+ * output.cc
+ (Output_section::Input_section_sort_entry::has_priority): New
+ function.
+ (Output_section::Input_section_sort_entry::match_file_name): New
+ function.
+ (Output_section::Input_section_sort_entry::match_section_name):
+ Remove.
+ (Output_section::Input_section_sort_entry::match_section_name_prefix):
+ Remove.
+ (Output_section::Input_section_sort_entry::match_section_file):
+ Remove.
+ (Output_section::Input_section_sort_compare::operator()): Rewrite
+ using new Input_section_sort_entry functions. Sort crtbegin and
+ crtend first. Sort sections with no priority before sections with
+ a priority.
+ * testsuite/initpri1.c (d3): Check j != 4.
+ (cd5): New constructor/destructor function.
+ (main): Check j != 2.
+
* symtab.cc (Symbol_table::add_from_object): If we don't use the
new symbol when resolving, don't call set_is_default.
* testsuite/ver_test_7.cc: New file.
diff --git a/gold/output.cc b/gold/output.cc
index ad822d1..f3ae678 100644
--- a/gold/output.cc
+++ b/gold/output.cc
@@ -2055,42 +2055,25 @@ class Output_section::Input_section_sort_entry
return this->section_name_;
}
- // Return true if the section name is either SECTION_NAME1 or
- // SECTION_NAME2.
+ // Return true if the section name has a priority. This is assumed
+ // to be true if it has a dot after the initial dot.
bool
- match_section_name(const char* section_name1, const char* section_name2) const
+ has_priority() const
{
gold_assert(this->section_has_name_);
- return (this->section_name_ == section_name1
- || this->section_name_ == section_name2);
+ return this->section_name_.find('.', 1);
}
- // Return true if PREFIX1 or PREFIX2 is a prefix of the section
- // name.
+ // Return true if this an input file whose base name matches
+ // FILE_NAME. The base name must have an extension of ".o", and
+ // must be exactly FILE_NAME.o or FILE_NAME, one character, ".o".
+ // This is to match crtbegin.o as well as crtbeginS.o without
+ // getting confused by other possibilities. Overall matching the
+ // file name this way is a dreadful hack, but the GNU linker does it
+ // in order to better support gcc, and we need to be compatible.
bool
- match_section_name_prefix(const char* prefix1, const char* prefix2) const
+ match_file_name(const char* match_file_name) const
{
- gold_assert(this->section_has_name_);
- return (this->section_name_.compare(0, strlen(prefix1), prefix1) == 0
- || this->section_name_.compare(0, strlen(prefix2), prefix2) == 0);
- }
-
- // Return true if this is for a section named SECTION_NAME1 or
- // SECTION_NAME2 in an input file whose base name matches FILE_NAME.
- // The base name must have an extension of ".o", and must be exactly
- // FILE_NAME.o or FILE_NAME, one character, ".o". This is to match
- // crtbegin.o as well as crtbeginS.o without getting confused by
- // other possibilities. Overall matching the file name this way is
- // a dreadful hack, but the GNU linker does it in order to better
- // support gcc, and we need to be compatible.
- bool
- match_section_file(const char* section_name1, const char* section_name2,
- const char* match_file_name) const
- {
- gold_assert(this->section_has_name_);
- if (this->section_name_ != section_name1
- && this->section_name_ != section_name2)
- return false;
const std::string& file_name(this->input_section_.relobj()->name());
const char* base_name = lbasename(file_name.c_str());
size_t match_len = strlen(match_file_name);
@@ -2121,20 +2104,9 @@ Output_section::Input_section_sort_compare::operator()(
const Output_section::Input_section_sort_entry& s1,
const Output_section::Input_section_sort_entry& s2) const
{
- // We sort all the sections with no names to the end.
- if (!s1.section_has_name() || !s2.section_has_name())
- {
- if (s1.section_has_name())
- return true;
- if (s2.section_has_name())
- return false;
- return s1.index() < s2.index();
- }
-
- // A .ctors or .dtors section from crtbegin.o must come before any
- // other .ctors* or .dtors* section.
- bool s1_begin = s1.match_section_file(".ctors", ".dtors", "crtbegin");
- bool s2_begin = s2.match_section_file(".ctors", ".dtors", "crtbegin");
+ // crtbegin.o must come first.
+ bool s1_begin = s1.match_file_name("crtbegin");
+ bool s2_begin = s2.match_file_name("crtbegin");
if (s1_begin || s2_begin)
{
if (!s1_begin)
@@ -2144,10 +2116,9 @@ Output_section::Input_section_sort_compare::operator()(
return s1.index() < s2.index();
}
- // A .ctors or .dtors section from crtend.o must come after any
- // other .ctors* or .dtors* section.
- bool s1_end = s1.match_section_file(".ctors", ".dtors", "crtend");
- bool s2_end = s2.match_section_file(".ctors", ".dtors", "crtend");
+ // crtend.o must come last.
+ bool s1_end = s1.match_file_name("crtend");
+ bool s2_end = s2.match_file_name("crtend");
if (s1_end || s2_end)
{
if (!s1_end)
@@ -2157,22 +2128,24 @@ Output_section::Input_section_sort_compare::operator()(
return s1.index() < s2.index();
}
- // A .ctors or .init_array section with a priority precedes a .ctors
- // or .init_array section without a priority.
- if (s1.match_section_name_prefix(".ctors.", ".init_array.")
- && s2.match_section_name(".ctors", ".init_array"))
- return true;
- if (s2.match_section_name_prefix(".ctors.", ".init_array.")
- && s1.match_section_name(".ctors", ".init_array"))
- return false;
+ // We sort all the sections with no names to the end.
+ if (!s1.section_has_name() || !s2.section_has_name())
+ {
+ if (s1.section_has_name())
+ return true;
+ if (s2.section_has_name())
+ return false;
+ return s1.index() < s2.index();
+ }
- // A .dtors or .fini_array section with a priority follows a .dtors
- // or .fini_array section without a priority.
- if (s1.match_section_name_prefix(".dtors.", ".fini_array.")
- && s2.match_section_name(".dtors", ".fini_array"))
+ // A section with a priority follows a section without a priority.
+ // The GNU linker does this for all but .init_array sections; until
+ // further notice we'll assume that that is an mistake.
+ bool s1_has_priority = s1.has_priority();
+ bool s2_has_priority = s2.has_priority();
+ if (s1_has_priority && !s2_has_priority)
return false;
- if (s2.match_section_name_prefix(".dtors.", ".fini_array.")
- && s1.match_section_name(".dtors", ".fini_array"))
+ if (!s1_has_priority && s2_has_priority)
return true;
// Otherwise we sort by name.
diff --git a/gold/testsuite/initpri1.c b/gold/testsuite/initpri1.c
index 4826389..890df03 100644
--- a/gold/testsuite/initpri1.c
+++ b/gold/testsuite/initpri1.c
@@ -64,7 +64,7 @@ void d2() {
}
void d3() {
- if (j != 2)
+ if (j != 4)
abort ();
if (--i != 1)
abort ();
@@ -78,10 +78,18 @@ void cd4() {
++j;
}
+void cd5() __attribute__((constructor, destructor));
+
+void cd5() {
+ if (i != 3)
+ abort();
+ ++j;
+}
+
int main () {
if (i != 3)
return 1;
- if (j != 1)
+ if (j != 2)
abort ();
return 0;
}