// plugin.cc -- plugin manager for gold -*- C++ -*-
-// Copyright (C) 2008-2015 Free Software Foundation, Inc.
+// Copyright (C) 2008-2016 Free Software Foundation, Inc.
// Written by Cary Coutant <ccoutant@google.com>.
// This file is part of gold.
static enum ld_plugin_status
get_symbols_v2(const void *handle, int nsyms, struct ld_plugin_symbol *syms);
+static enum ld_plugin_status
+get_symbols_v3(const void *handle, int nsyms, struct ld_plugin_symbol *syms);
+
static enum ld_plugin_status
add_input_file(const char *pathname);
uint64_t align,
const struct ld_plugin_section *section_list,
unsigned int num_sections);
+
+static enum ld_plugin_status
+get_input_section_alignment(const struct ld_plugin_section section,
+ unsigned int* addralign);
+
+static enum ld_plugin_status
+get_input_section_size(const struct ld_plugin_section section,
+ uint64_t* secsize);
+
};
#endif // ENABLE_PLUGINS
sscanf(ver, "%d.%d", &major, &minor);
// Allocate and populate a transfer vector.
- const int tv_fixed_size = 26;
+ const int tv_fixed_size = 29;
int tv_size = this->args_.size() + tv_fixed_size;
ld_plugin_tv* tv = new ld_plugin_tv[tv_size];
tv[i].tv_tag = LDPT_GET_SYMBOLS_V2;
tv[i].tv_u.tv_get_symbols = get_symbols_v2;
+ ++i;
+ tv[i].tv_tag = LDPT_GET_SYMBOLS_V3;
+ tv[i].tv_u.tv_get_symbols = get_symbols_v3;
+
++i;
tv[i].tv_tag = LDPT_ADD_INPUT_FILE;
tv[i].tv_u.tv_add_input_file = add_input_file;
tv[i].tv_tag = LDPT_UNIQUE_SEGMENT_FOR_SECTIONS;
tv[i].tv_u.tv_unique_segment_for_sections = unique_segment_for_sections;
+ ++i;
+ tv[i].tv_tag = LDPT_GET_INPUT_SECTION_ALIGNMENT;
+ tv[i].tv_u.tv_get_input_section_alignment = get_input_section_alignment;
+
+ ++i;
+ tv[i].tv_tag = LDPT_GET_INPUT_SECTION_SIZE;
+ tv[i].tv_u.tv_get_input_section_size = get_input_section_size;
+
++i;
tv[i].tv_tag = LDPT_NULL;
tv[i].tv_u.tv_val = 0;
// Get symbol resolution info.
ld_plugin_status
-Pluginobj::get_symbol_resolution_info(int nsyms,
+Pluginobj::get_symbol_resolution_info(Symbol_table* symtab,
+ int nsyms,
ld_plugin_symbol* syms,
int version) const
{
gold_assert(this->symbols_.size() == 0);
for (int i = 0; i < nsyms; i++)
syms[i].resolution = LDPR_PREEMPTED_REG;
- return LDPS_OK;
+ return version > 2 ? LDPS_NO_SYMS : LDPS_OK;
}
for (int i = 0; i < nsyms; i++)
{
ld_plugin_symbol* isym = &syms[i];
Symbol* lsym = this->symbols_[i];
+ if (lsym->is_forwarder())
+ lsym = symtab->resolve_forwards(lsym);
ld_plugin_symbol_resolution res = LDPR_UNKNOWN;
if (lsym->is_undefined())
for (int i = 0; i < this->nsyms_; ++i)
{
const struct ld_plugin_symbol& sym = this->syms_[i];
+ if (sym.def == LDPK_UNDEF || sym.def == LDPK_WEAKUNDEF)
+ continue;
const char* name = sym.name;
Symbol* symbol;
Archive::Should_include t = Archive::should_include_member(symtab,
get_symbols(const void* handle, int nsyms, ld_plugin_symbol* syms)
{
gold_assert(parameters->options().has_plugins());
- Object* obj = parameters->options().plugins()->object(
+ Plugin_manager* plugins = parameters->options().plugins();
+ Object* obj = plugins->object(
static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
if (obj == NULL)
return LDPS_ERR;
Pluginobj* plugin_obj = obj->pluginobj();
if (plugin_obj == NULL)
return LDPS_ERR;
- return plugin_obj->get_symbol_resolution_info(nsyms, syms, 1);
+ Symbol_table* symtab = plugins->symtab();
+ return plugin_obj->get_symbol_resolution_info(symtab, nsyms, syms, 1);
}
// Version 2 of the above. The only difference is that this version
get_symbols_v2(const void* handle, int nsyms, ld_plugin_symbol* syms)
{
gold_assert(parameters->options().has_plugins());
- Object* obj = parameters->options().plugins()->object(
+ Plugin_manager* plugins = parameters->options().plugins();
+ Object* obj = plugins->object(
+ static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
+ if (obj == NULL)
+ return LDPS_ERR;
+ Pluginobj* plugin_obj = obj->pluginobj();
+ if (plugin_obj == NULL)
+ return LDPS_ERR;
+ Symbol_table* symtab = plugins->symtab();
+ return plugin_obj->get_symbol_resolution_info(symtab, nsyms, syms, 2);
+}
+
+// Version 3 of the above. The only difference from v2 is that it
+// returns LDPS_NO_SYMS instead of LDPS_OK for the objects we never
+// decided to include.
+
+static enum ld_plugin_status
+get_symbols_v3(const void* handle, int nsyms, ld_plugin_symbol* syms)
+{
+ gold_assert(parameters->options().has_plugins());
+ Plugin_manager* plugins = parameters->options().plugins();
+ Object* obj = plugins->object(
static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
if (obj == NULL)
return LDPS_ERR;
Pluginobj* plugin_obj = obj->pluginobj();
if (plugin_obj == NULL)
return LDPS_ERR;
- return plugin_obj->get_symbol_resolution_info(nsyms, syms, 2);
+ Symbol_table* symtab = plugins->symtab();
+ return plugin_obj->get_symbol_resolution_info(symtab, nsyms, syms, 3);
}
// Add a new (real) input file generated by a plugin.
return LDPS_OK;
}
+// Get the alignment of the specified section in the object corresponding
+// to the handle. This plugin interface can only be called in the
+// claim_file handler of the plugin.
+
+static enum ld_plugin_status
+get_input_section_alignment(const struct ld_plugin_section section,
+ unsigned int* addralign)
+{
+ gold_assert(parameters->options().has_plugins());
+
+ if (!parameters->options().plugins()->in_claim_file_handler())
+ return LDPS_ERR;
+
+ Object* obj
+ = parameters->options().plugins()->get_elf_object(section.handle);
+
+ if (obj == NULL)
+ return LDPS_BAD_HANDLE;
+
+ *addralign = obj->section_addralign(section.shndx);
+ return LDPS_OK;
+}
+
+// Get the size of the specified section in the object corresponding
+// to the handle. This plugin interface can only be called in the
+// claim_file handler of the plugin.
+
+static enum ld_plugin_status
+get_input_section_size(const struct ld_plugin_section section,
+ uint64_t* secsize)
+{
+ gold_assert(parameters->options().has_plugins());
+
+ if (!parameters->options().plugins()->in_claim_file_handler())
+ return LDPS_ERR;
+
+ Object* obj
+ = parameters->options().plugins()->get_elf_object(section.handle);
+
+ if (obj == NULL)
+ return LDPS_BAD_HANDLE;
+
+ *secsize = obj->section_size(section.shndx);
+ return LDPS_OK;
+}
+
+
// Specify the ordering of sections in the final layout. The sections are
// specified as (handle,shndx) pairs in the two arrays in the order in
// which they should appear in the final layout.
{
Object* obj = parameters->options().plugins()->get_elf_object(
section_list[i].handle);
- if (obj == NULL)
+ if (obj == NULL || obj->is_dynamic())
return LDPS_BAD_HANDLE;
unsigned int shndx = section_list[i].shndx;
- Section_id secn_id(obj, shndx);
+ Section_id secn_id(static_cast<Relobj*>(obj), shndx);
(*order_map)[secn_id] = i + 1;
}
{
Object* obj = parameters->options().plugins()->get_elf_object(
section_list[i].handle);
- if (obj == NULL)
+ if (obj == NULL || obj->is_dynamic())
return LDPS_BAD_HANDLE;
unsigned int shndx = section_list[i].shndx;
- Const_section_id secn_id(obj, shndx);
+ Const_section_id secn_id(static_cast<Relobj*>(obj), shndx);
layout->insert_section_segment_map(secn_id, s);
}
projects / deliverable / binutils-gdb.git / blobdiff