2016-05-13 01:50:34 +02:00
|
|
|
/* Test plugin for the GNU linker. Check non-object IR file as well as
|
|
|
|
get_input_file, get_view, release_input_file and get_symbols interfaces.
|
2020-01-01 08:57:01 +01:00
|
|
|
Copyright (C) 2016-2020 Free Software Foundation, Inc.
|
2016-05-13 01:50:34 +02:00
|
|
|
|
|
|
|
This file is part of the GNU Binutils.
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
|
|
MA 02110-1301, USA. */
|
|
|
|
|
|
|
|
#include "sysdep.h"
|
|
|
|
#include "bfd.h"
|
|
|
|
#include "plugin-api.h"
|
|
|
|
#include "filenames.h"
|
|
|
|
/* For ARRAY_SIZE macro only - we don't link the library itself. */
|
|
|
|
#include "libiberty.h"
|
|
|
|
|
|
|
|
extern enum ld_plugin_status onload (struct ld_plugin_tv *tv);
|
|
|
|
static enum ld_plugin_status onclaim_file (const struct ld_plugin_input_file *file,
|
|
|
|
int *claimed);
|
|
|
|
static enum ld_plugin_status onall_symbols_read (void);
|
|
|
|
static enum ld_plugin_status oncleanup (void);
|
|
|
|
|
|
|
|
/* Helper for calling plugin api message function. */
|
|
|
|
#define TV_MESSAGE if (tv_message) (*tv_message)
|
|
|
|
|
|
|
|
/* Struct for recording files to claim / files claimed. */
|
|
|
|
typedef struct claim_file
|
|
|
|
{
|
|
|
|
struct claim_file *next;
|
|
|
|
struct ld_plugin_input_file file;
|
|
|
|
bfd_boolean claimed;
|
|
|
|
struct ld_plugin_symbol *symbols;
|
|
|
|
int n_syms_allocated;
|
|
|
|
int n_syms_used;
|
|
|
|
} claim_file_t;
|
|
|
|
|
|
|
|
/* Types of things that can be added at all symbols read time. */
|
|
|
|
typedef enum addfile_enum
|
|
|
|
{
|
|
|
|
ADD_FILE,
|
|
|
|
ADD_LIB,
|
|
|
|
ADD_DIR
|
|
|
|
} addfile_enum_t;
|
|
|
|
|
|
|
|
/* Struct for recording files to add to final link. */
|
|
|
|
typedef struct add_file
|
|
|
|
{
|
|
|
|
struct add_file *next;
|
|
|
|
const char *name;
|
|
|
|
addfile_enum_t type;
|
|
|
|
} add_file_t;
|
|
|
|
|
|
|
|
/* Helper macro for defining array of transfer vector tags and names. */
|
|
|
|
#define ADDENTRY(tag) { tag, #tag }
|
|
|
|
|
|
|
|
/* Struct for looking up human-readable versions of tag names. */
|
|
|
|
typedef struct tag_name
|
|
|
|
{
|
|
|
|
enum ld_plugin_tag tag;
|
|
|
|
const char *name;
|
|
|
|
} tag_name_t;
|
|
|
|
|
|
|
|
/* Array of all known tags and their names. */
|
|
|
|
static const tag_name_t tag_names[] =
|
|
|
|
{
|
|
|
|
ADDENTRY(LDPT_NULL),
|
|
|
|
ADDENTRY(LDPT_API_VERSION),
|
|
|
|
ADDENTRY(LDPT_GOLD_VERSION),
|
|
|
|
ADDENTRY(LDPT_LINKER_OUTPUT),
|
|
|
|
ADDENTRY(LDPT_OPTION),
|
|
|
|
ADDENTRY(LDPT_REGISTER_CLAIM_FILE_HOOK),
|
|
|
|
ADDENTRY(LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK),
|
|
|
|
ADDENTRY(LDPT_REGISTER_CLEANUP_HOOK),
|
|
|
|
ADDENTRY(LDPT_ADD_SYMBOLS),
|
|
|
|
ADDENTRY(LDPT_GET_SYMBOLS),
|
|
|
|
ADDENTRY(LDPT_GET_SYMBOLS_V2),
|
|
|
|
ADDENTRY(LDPT_ADD_INPUT_FILE),
|
|
|
|
ADDENTRY(LDPT_MESSAGE),
|
|
|
|
ADDENTRY(LDPT_GET_INPUT_FILE),
|
|
|
|
ADDENTRY(LDPT_GET_VIEW),
|
|
|
|
ADDENTRY(LDPT_RELEASE_INPUT_FILE),
|
|
|
|
ADDENTRY(LDPT_ADD_INPUT_LIBRARY),
|
|
|
|
ADDENTRY(LDPT_OUTPUT_NAME),
|
|
|
|
ADDENTRY(LDPT_SET_EXTRA_LIBRARY_PATH),
|
|
|
|
ADDENTRY(LDPT_GNU_LD_VERSION)
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Function pointers to cache hooks passed at onload time. */
|
|
|
|
static ld_plugin_register_claim_file tv_register_claim_file = 0;
|
|
|
|
static ld_plugin_register_all_symbols_read tv_register_all_symbols_read = 0;
|
|
|
|
static ld_plugin_register_cleanup tv_register_cleanup = 0;
|
|
|
|
static ld_plugin_add_symbols tv_add_symbols = 0;
|
|
|
|
static ld_plugin_get_symbols tv_get_symbols = 0;
|
|
|
|
static ld_plugin_get_symbols tv_get_symbols_v2 = 0;
|
|
|
|
static ld_plugin_add_input_file tv_add_input_file = 0;
|
|
|
|
static ld_plugin_message tv_message = 0;
|
|
|
|
static ld_plugin_get_input_file tv_get_input_file = 0;
|
|
|
|
static ld_plugin_get_view tv_get_view = 0;
|
|
|
|
static ld_plugin_release_input_file tv_release_input_file = 0;
|
|
|
|
static ld_plugin_add_input_library tv_add_input_library = 0;
|
|
|
|
static ld_plugin_set_extra_library_path tv_set_extra_library_path = 0;
|
|
|
|
|
|
|
|
/* Other cached info from the transfer vector. */
|
|
|
|
static enum ld_plugin_output_file_type linker_output;
|
|
|
|
static const char *output_name;
|
|
|
|
|
|
|
|
/* Behaviour control flags set by plugin options. */
|
|
|
|
static enum ld_plugin_status onload_ret = LDPS_OK;
|
|
|
|
static enum ld_plugin_status claim_file_ret = LDPS_OK;
|
|
|
|
static enum ld_plugin_status all_symbols_read_ret = LDPS_OK;
|
|
|
|
static enum ld_plugin_status cleanup_ret = LDPS_OK;
|
|
|
|
static bfd_boolean register_claimfile_hook = TRUE;
|
|
|
|
static bfd_boolean register_allsymbolsread_hook = FALSE;
|
|
|
|
static bfd_boolean register_cleanup_hook = FALSE;
|
|
|
|
static bfd_boolean dumpresolutions = FALSE;
|
|
|
|
static bfd_boolean allsymbolsread_silent = FALSE;
|
|
|
|
|
|
|
|
/* The master list of all claimable/claimed files. */
|
|
|
|
static claim_file_t *claimfiles_list = NULL;
|
|
|
|
|
|
|
|
/* We keep a tail pointer for easy linking on the end. */
|
|
|
|
static claim_file_t **claimfiles_tail_chain_ptr = &claimfiles_list;
|
|
|
|
|
|
|
|
/* The last claimed file added to the list, for receiving syms. */
|
|
|
|
static claim_file_t *last_claimfile = NULL;
|
|
|
|
|
|
|
|
/* The master list of all files to add to the final link. */
|
|
|
|
static add_file_t *addfiles_list = NULL;
|
|
|
|
|
|
|
|
/* We keep a tail pointer for easy linking on the end. */
|
|
|
|
static add_file_t **addfiles_tail_chain_ptr = &addfiles_list;
|
|
|
|
|
|
|
|
/* Add a new claimfile on the end of the chain. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
record_claim_file (const char *file, off_t filesize)
|
|
|
|
{
|
|
|
|
claim_file_t *newfile;
|
|
|
|
|
|
|
|
newfile = malloc (sizeof *newfile);
|
|
|
|
if (!newfile)
|
|
|
|
return LDPS_ERR;
|
|
|
|
memset (newfile, 0, sizeof *newfile);
|
|
|
|
/* Only setup for now is remembering the name to look for. */
|
|
|
|
newfile->file.name = file;
|
|
|
|
newfile->file.filesize = filesize;
|
|
|
|
/* Chain it on the end of the list. */
|
|
|
|
*claimfiles_tail_chain_ptr = newfile;
|
|
|
|
claimfiles_tail_chain_ptr = &newfile->next;
|
|
|
|
/* Record it as active for receiving symbols to register. */
|
|
|
|
last_claimfile = newfile;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Add a new addfile on the end of the chain. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
record_add_file (const char *file, addfile_enum_t type)
|
|
|
|
{
|
|
|
|
add_file_t *newfile;
|
|
|
|
|
|
|
|
newfile = malloc (sizeof *newfile);
|
|
|
|
if (!newfile)
|
|
|
|
return LDPS_ERR;
|
|
|
|
newfile->next = NULL;
|
|
|
|
newfile->name = file;
|
|
|
|
newfile->type = type;
|
|
|
|
/* Chain it on the end of the list. */
|
|
|
|
*addfiles_tail_chain_ptr = newfile;
|
|
|
|
addfiles_tail_chain_ptr = &newfile->next;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Parse a command-line argument string into a symbol definition.
|
|
|
|
Symbol-strings follow the colon-separated format:
|
|
|
|
NAME:VERSION:def:vis:size:COMDATKEY
|
|
|
|
where the fields in capitals are strings and those in lower
|
|
|
|
case are integers. We don't allow to specify a resolution as
|
|
|
|
doing so is not meaningful when calling the add symbols hook. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
parse_symdefstr (const char *str, struct ld_plugin_symbol *sym)
|
|
|
|
{
|
|
|
|
int n;
|
|
|
|
long long size;
|
|
|
|
const char *colon1, *colon2, *colon5;
|
|
|
|
|
|
|
|
/* Locate the colons separating the first two strings. */
|
|
|
|
colon1 = strchr (str, ':');
|
|
|
|
if (!colon1)
|
|
|
|
return LDPS_ERR;
|
|
|
|
colon2 = strchr (colon1+1, ':');
|
|
|
|
if (!colon2)
|
|
|
|
return LDPS_ERR;
|
|
|
|
/* Name must not be empty (version may be). */
|
|
|
|
if (colon1 == str)
|
|
|
|
return LDPS_ERR;
|
|
|
|
|
|
|
|
/* The fifth colon and trailing comdat key string are optional,
|
|
|
|
but the intermediate ones must all be present. */
|
|
|
|
colon5 = strchr (colon2+1, ':'); /* Actually only third so far. */
|
|
|
|
if (!colon5)
|
|
|
|
return LDPS_ERR;
|
|
|
|
colon5 = strchr (colon5+1, ':'); /* Hopefully fourth now. */
|
|
|
|
if (!colon5)
|
|
|
|
return LDPS_ERR;
|
|
|
|
colon5 = strchr (colon5+1, ':'); /* Optional fifth now. */
|
|
|
|
|
|
|
|
/* Finally we'll use sscanf to parse the numeric fields, then
|
|
|
|
we'll split out the strings which we need to allocate separate
|
|
|
|
storage for anyway so that we can add nul termination. */
|
|
|
|
n = sscanf (colon2 + 1, "%i:%i:%lli", &sym->def, &sym->visibility, &size);
|
|
|
|
if (n != 3)
|
|
|
|
return LDPS_ERR;
|
|
|
|
|
|
|
|
/* Parsed successfully, so allocate strings and fill out fields. */
|
|
|
|
sym->size = size;
|
|
|
|
sym->resolution = LDPR_UNKNOWN;
|
|
|
|
sym->name = malloc (colon1 - str + 1);
|
|
|
|
if (!sym->name)
|
|
|
|
return LDPS_ERR;
|
|
|
|
memcpy (sym->name, str, colon1 - str);
|
|
|
|
sym->name[colon1 - str] = '\0';
|
|
|
|
if (colon2 > (colon1 + 1))
|
|
|
|
{
|
|
|
|
sym->version = malloc (colon2 - colon1);
|
|
|
|
if (!sym->version)
|
|
|
|
return LDPS_ERR;
|
|
|
|
memcpy (sym->version, colon1 + 1, colon2 - (colon1 + 1));
|
|
|
|
sym->version[colon2 - (colon1 + 1)] = '\0';
|
|
|
|
}
|
|
|
|
else
|
|
|
|
sym->version = NULL;
|
|
|
|
if (colon5 && colon5[1])
|
|
|
|
{
|
|
|
|
sym->comdat_key = malloc (strlen (colon5 + 1) + 1);
|
|
|
|
if (!sym->comdat_key)
|
|
|
|
return LDPS_ERR;
|
|
|
|
strcpy (sym->comdat_key, colon5 + 1);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
sym->comdat_key = 0;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Record a symbol to be added for the last-added claimfile. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
record_claimed_file_symbol (const char *symdefstr)
|
|
|
|
{
|
|
|
|
struct ld_plugin_symbol sym;
|
|
|
|
|
|
|
|
/* Can't add symbols except as belonging to claimed files. */
|
|
|
|
if (!last_claimfile)
|
|
|
|
return LDPS_ERR;
|
|
|
|
|
|
|
|
/* If string doesn't parse correctly, give an error. */
|
|
|
|
if (parse_symdefstr (symdefstr, &sym) != LDPS_OK)
|
|
|
|
return LDPS_ERR;
|
|
|
|
|
|
|
|
/* Check for enough space, resize array if needed, and add it. */
|
|
|
|
if (last_claimfile->n_syms_allocated == last_claimfile->n_syms_used)
|
|
|
|
{
|
|
|
|
int new_n_syms = last_claimfile->n_syms_allocated
|
|
|
|
? 2 * last_claimfile->n_syms_allocated
|
|
|
|
: 10;
|
|
|
|
last_claimfile->symbols = realloc (last_claimfile->symbols,
|
|
|
|
new_n_syms * sizeof *last_claimfile->symbols);
|
|
|
|
if (!last_claimfile->symbols)
|
|
|
|
return LDPS_ERR;
|
|
|
|
last_claimfile->n_syms_allocated = new_n_syms;
|
|
|
|
}
|
|
|
|
last_claimfile->symbols[last_claimfile->n_syms_used++] = sym;
|
|
|
|
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Records the status to return from one of the registered hooks. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
set_ret_val (const char *whichval, enum ld_plugin_status retval)
|
|
|
|
{
|
|
|
|
if (!strcmp ("onload", whichval))
|
|
|
|
onload_ret = retval;
|
|
|
|
else if (!strcmp ("claimfile", whichval))
|
|
|
|
claim_file_ret = retval;
|
|
|
|
else if (!strcmp ("allsymbolsread", whichval))
|
|
|
|
all_symbols_read_ret = retval;
|
|
|
|
else if (!strcmp ("cleanup", whichval))
|
|
|
|
cleanup_ret = retval;
|
|
|
|
else
|
|
|
|
return LDPS_ERR;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Records hooks which should be registered. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
set_register_hook (const char *whichhook, bfd_boolean yesno)
|
|
|
|
{
|
|
|
|
if (!strcmp ("claimfile", whichhook))
|
|
|
|
register_claimfile_hook = yesno;
|
|
|
|
else if (!strcmp ("allsymbolsread", whichhook))
|
|
|
|
register_allsymbolsread_hook = yesno;
|
|
|
|
else if (!strcmp ("allsymbolsreadsilent", whichhook))
|
|
|
|
{
|
|
|
|
register_allsymbolsread_hook = yesno;
|
|
|
|
allsymbolsread_silent = TRUE;
|
|
|
|
}
|
|
|
|
else if (!strcmp ("cleanup", whichhook))
|
|
|
|
register_cleanup_hook = yesno;
|
|
|
|
else
|
|
|
|
return LDPS_ERR;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Determine type of plugin option and pass to individual parsers. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
parse_option (const char *opt)
|
|
|
|
{
|
|
|
|
if (!strncmp ("fatal", opt, 5))
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_FATAL, "Fatal error");
|
|
|
|
fflush (NULL);
|
|
|
|
}
|
|
|
|
else if (!strncmp ("error", opt, 5))
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_ERROR, "Error");
|
|
|
|
fflush (NULL);
|
|
|
|
}
|
|
|
|
else if (!strncmp ("warning", opt, 7))
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_WARNING, "Warning");
|
|
|
|
fflush (NULL);
|
|
|
|
}
|
|
|
|
else if (!strncmp ("fail", opt, 4))
|
|
|
|
return set_ret_val (opt + 4, LDPS_ERR);
|
|
|
|
else if (!strncmp ("pass", opt, 4))
|
|
|
|
return set_ret_val (opt + 4, LDPS_OK);
|
|
|
|
else if (!strncmp ("register", opt, 8))
|
|
|
|
return set_register_hook (opt + 8, TRUE);
|
|
|
|
else if (!strncmp ("noregister", opt, 10))
|
|
|
|
return set_register_hook (opt + 10, FALSE);
|
|
|
|
else if (!strncmp ("claim:", opt, 6))
|
|
|
|
return record_claim_file (opt + 6, 0);
|
|
|
|
else if (!strncmp ("sym:", opt, 4))
|
|
|
|
return record_claimed_file_symbol (opt + 4);
|
|
|
|
else if (!strncmp ("add:", opt, 4))
|
|
|
|
return record_add_file (opt + 4, ADD_FILE);
|
|
|
|
else if (!strncmp ("lib:", opt, 4))
|
|
|
|
return record_add_file (opt + 4, ADD_LIB);
|
|
|
|
else if (!strncmp ("dir:", opt, 4))
|
|
|
|
return record_add_file (opt + 4, ADD_DIR);
|
|
|
|
else if (!strcmp ("dumpresolutions", opt))
|
|
|
|
dumpresolutions = TRUE;
|
|
|
|
else
|
|
|
|
return LDPS_ERR;
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle/record information received in a transfer vector entry. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
parse_tv_tag (struct ld_plugin_tv *tv)
|
|
|
|
{
|
|
|
|
#define SETVAR(x) x = tv->tv_u.x
|
|
|
|
switch (tv->tv_tag)
|
|
|
|
{
|
|
|
|
case LDPT_OPTION:
|
|
|
|
return parse_option (tv->tv_u.tv_string);
|
|
|
|
case LDPT_NULL:
|
|
|
|
case LDPT_GOLD_VERSION:
|
|
|
|
case LDPT_GNU_LD_VERSION:
|
|
|
|
case LDPT_API_VERSION:
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
case LDPT_OUTPUT_NAME:
|
|
|
|
output_name = tv->tv_u.tv_string;
|
|
|
|
break;
|
|
|
|
case LDPT_LINKER_OUTPUT:
|
|
|
|
linker_output = tv->tv_u.tv_val;
|
|
|
|
break;
|
|
|
|
case LDPT_REGISTER_CLAIM_FILE_HOOK:
|
|
|
|
SETVAR(tv_register_claim_file);
|
|
|
|
break;
|
|
|
|
case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK:
|
|
|
|
SETVAR(tv_register_all_symbols_read);
|
|
|
|
break;
|
|
|
|
case LDPT_REGISTER_CLEANUP_HOOK:
|
|
|
|
SETVAR(tv_register_cleanup);
|
|
|
|
break;
|
|
|
|
case LDPT_ADD_SYMBOLS:
|
|
|
|
SETVAR(tv_add_symbols);
|
|
|
|
break;
|
|
|
|
case LDPT_GET_SYMBOLS:
|
|
|
|
SETVAR(tv_get_symbols);
|
|
|
|
break;
|
|
|
|
case LDPT_GET_SYMBOLS_V2:
|
|
|
|
tv_get_symbols_v2 = tv->tv_u.tv_get_symbols;
|
|
|
|
break;
|
|
|
|
case LDPT_ADD_INPUT_FILE:
|
|
|
|
SETVAR(tv_add_input_file);
|
|
|
|
break;
|
|
|
|
case LDPT_MESSAGE:
|
|
|
|
SETVAR(tv_message);
|
|
|
|
break;
|
|
|
|
case LDPT_GET_INPUT_FILE:
|
|
|
|
SETVAR(tv_get_input_file);
|
|
|
|
break;
|
|
|
|
case LDPT_GET_VIEW:
|
|
|
|
SETVAR(tv_get_view);
|
|
|
|
break;
|
|
|
|
case LDPT_RELEASE_INPUT_FILE:
|
|
|
|
SETVAR(tv_release_input_file);
|
|
|
|
break;
|
|
|
|
case LDPT_ADD_INPUT_LIBRARY:
|
|
|
|
SETVAR(tv_add_input_library);
|
|
|
|
break;
|
|
|
|
case LDPT_SET_EXTRA_LIBRARY_PATH:
|
|
|
|
SETVAR(tv_set_extra_library_path);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#undef SETVAR
|
|
|
|
return LDPS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Standard plugin API entry point. */
|
|
|
|
enum ld_plugin_status
|
|
|
|
onload (struct ld_plugin_tv *tv)
|
|
|
|
{
|
|
|
|
enum ld_plugin_status rv;
|
|
|
|
|
|
|
|
/* This plugin does nothing but dump the tv array. It would
|
|
|
|
be an error if this function was called without one. */
|
|
|
|
if (!tv)
|
|
|
|
return LDPS_ERR;
|
|
|
|
|
|
|
|
/* First entry should always be LDPT_MESSAGE, letting us get
|
|
|
|
hold of it easily so we can send output straight away. */
|
|
|
|
if (tv[0].tv_tag == LDPT_MESSAGE)
|
|
|
|
tv_message = tv[0].tv_u.tv_message;
|
|
|
|
|
|
|
|
do
|
|
|
|
if ((rv = parse_tv_tag (tv)) != LDPS_OK)
|
|
|
|
return rv;
|
|
|
|
while ((tv++)->tv_tag != LDPT_NULL);
|
|
|
|
|
|
|
|
/* Register hooks only if instructed by options. */
|
|
|
|
if (register_claimfile_hook)
|
|
|
|
{
|
|
|
|
if (!tv_register_claim_file)
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_FATAL, "No register_claim_file hook");
|
|
|
|
fflush (NULL);
|
|
|
|
return LDPS_ERR;
|
|
|
|
}
|
|
|
|
(*tv_register_claim_file) (onclaim_file);
|
|
|
|
}
|
|
|
|
if (register_allsymbolsread_hook)
|
|
|
|
{
|
|
|
|
if (!tv_register_all_symbols_read)
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_FATAL, "No register_all_symbols_read hook");
|
|
|
|
fflush (NULL);
|
|
|
|
return LDPS_ERR;
|
|
|
|
}
|
|
|
|
(*tv_register_all_symbols_read) (onall_symbols_read);
|
|
|
|
}
|
|
|
|
if (register_cleanup_hook)
|
|
|
|
{
|
|
|
|
if (!tv_register_cleanup)
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_FATAL, "No register_cleanup hook");
|
|
|
|
fflush (NULL);
|
|
|
|
return LDPS_ERR;
|
|
|
|
}
|
|
|
|
(*tv_register_cleanup) (oncleanup);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Claim testsuite/ld-plugin/pr20070b.c, standalone or in a library.
|
|
|
|
Its size must be SIZE_OF_PR20070B_C bytes. */
|
|
|
|
#define SIZE_OF_PR20070B_C 248
|
|
|
|
if (onload_ret == LDPS_OK
|
|
|
|
&& (record_claim_file ("pr20070b.c", SIZE_OF_PR20070B_C) != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("def::0:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("weakdef::1:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("undef::2:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("weakundef::3:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("common::4:0:0") != LDPS_OK
|
|
|
|
|| record_claim_file ("libpr20070.a", SIZE_OF_PR20070B_C) != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("def::0:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("weakdef::1:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("undef::2:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("weakundef::3:0:0") != LDPS_OK
|
|
|
|
|| record_claimed_file_symbol ("common::4:0:0") != LDPS_OK))
|
|
|
|
onload_ret = LDPS_ERR;
|
|
|
|
|
|
|
|
return onload_ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *
|
|
|
|
xstrdup (const char *s)
|
|
|
|
{
|
|
|
|
size_t len = strlen (s) + 1;
|
|
|
|
char *ret = malloc (len + 1);
|
|
|
|
return (char *) memcpy (ret, s, len);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Standard plugin API registerable hook. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
onclaim_file (const struct ld_plugin_input_file *file, int *claimed)
|
|
|
|
{
|
|
|
|
/* Let's see if we want to claim this file. */
|
|
|
|
claim_file_t *claimfile = claimfiles_list;
|
|
|
|
size_t len = strlen (file->name);
|
|
|
|
char *name = xstrdup (file->name);
|
|
|
|
char *p = name + len;
|
|
|
|
bfd_boolean islib;
|
|
|
|
|
|
|
|
/* Only match the file name without the directory part. */
|
|
|
|
islib = *p == 'a' && *(p - 1) == '.';
|
|
|
|
for (; p != name; p--)
|
|
|
|
if (IS_DIR_SEPARATOR (*p))
|
|
|
|
{
|
|
|
|
p++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (claimfile)
|
|
|
|
{
|
|
|
|
/* Claim the file only if the file name and size match and don't
|
|
|
|
match the whole library. */
|
|
|
|
if (!strcmp (p, claimfile->file.name)
|
|
|
|
&& claimfile->file.filesize == file->filesize
|
|
|
|
&& (!islib || file->offset != 0))
|
|
|
|
break;
|
|
|
|
claimfile = claimfile->next;
|
|
|
|
}
|
|
|
|
|
|
|
|
free (name);
|
|
|
|
|
|
|
|
/* If we decided to claim it, record that fact, and add any symbols
|
|
|
|
that were defined for it by plugin options. */
|
|
|
|
*claimed = (claimfile != 0);
|
|
|
|
if (claimfile)
|
|
|
|
{
|
|
|
|
claimfile->claimed = TRUE;
|
|
|
|
claimfile->file = *file;
|
|
|
|
if (claimfile->n_syms_used && !tv_add_symbols)
|
|
|
|
return LDPS_ERR;
|
|
|
|
else if (claimfile->n_syms_used)
|
|
|
|
return (*tv_add_symbols) (claimfile->file.handle,
|
|
|
|
claimfile->n_syms_used, claimfile->symbols);
|
|
|
|
}
|
|
|
|
|
|
|
|
return claim_file_ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Standard plugin API registerable hook. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
onall_symbols_read (void)
|
|
|
|
{
|
|
|
|
static const char *resolutions[] =
|
|
|
|
{
|
|
|
|
"LDPR_UNKNOWN",
|
|
|
|
"LDPR_UNDEF",
|
|
|
|
"LDPR_PREVAILING_DEF",
|
|
|
|
"LDPR_PREVAILING_DEF_IRONLY",
|
|
|
|
"LDPR_PREEMPTED_REG",
|
|
|
|
"LDPR_PREEMPTED_IR",
|
|
|
|
"LDPR_RESOLVED_IR",
|
|
|
|
"LDPR_RESOLVED_EXEC",
|
|
|
|
"LDPR_RESOLVED_DYN",
|
|
|
|
"LDPR_PREVAILING_DEF_IRONLY_EXP",
|
|
|
|
};
|
|
|
|
claim_file_t *claimfile = dumpresolutions ? claimfiles_list : NULL;
|
|
|
|
add_file_t *addfile = addfiles_list;
|
|
|
|
struct ld_plugin_input_file file;
|
|
|
|
const void *view;
|
|
|
|
char buffer[30];
|
|
|
|
int fd;
|
|
|
|
char *filename;
|
|
|
|
if (! allsymbolsread_silent)
|
|
|
|
TV_MESSAGE (LDPL_INFO, "hook called: all symbols read.");
|
|
|
|
for ( ; claimfile; claimfile = claimfile->next)
|
|
|
|
{
|
|
|
|
enum ld_plugin_status rv;
|
|
|
|
int n;
|
|
|
|
if (claimfile->n_syms_used && !tv_get_symbols_v2)
|
|
|
|
return LDPS_ERR;
|
|
|
|
else if (!claimfile->n_syms_used)
|
|
|
|
continue;
|
|
|
|
else if (!claimfile->file.handle)
|
|
|
|
continue;
|
|
|
|
rv = tv_get_input_file (claimfile->file.handle, &file);
|
|
|
|
if (rv != LDPS_OK)
|
|
|
|
return rv;
|
|
|
|
TV_MESSAGE (LDPL_INFO, "Input: %s (%s)", file.name,
|
|
|
|
claimfile->file.name);
|
|
|
|
rv = tv_get_view (claimfile->file.handle, &view);
|
|
|
|
if (rv != LDPS_OK)
|
|
|
|
return rv;
|
|
|
|
#define EXPECTED_VIEW "/* The first line of this file must match the expectation of"
|
|
|
|
#define EXPECTED_VIEW_LENGTH (sizeof (EXPECTED_VIEW) - 1)
|
|
|
|
if (file.filesize != SIZE_OF_PR20070B_C
|
2016-05-14 14:51:28 +02:00
|
|
|
|| SIZE_OF_PR20070B_C < EXPECTED_VIEW_LENGTH
|
2016-05-13 01:50:34 +02:00
|
|
|
|| memcmp (view, EXPECTED_VIEW, EXPECTED_VIEW_LENGTH) != 0)
|
|
|
|
{
|
|
|
|
char result[EXPECTED_VIEW_LENGTH + 1];
|
|
|
|
memcpy (result, view, sizeof (result));
|
|
|
|
result[EXPECTED_VIEW_LENGTH] = '\0';
|
|
|
|
TV_MESSAGE (LDPL_INFO, "Incorrect view:");
|
|
|
|
TV_MESSAGE (LDPL_INFO, " Expect: " EXPECTED_VIEW);
|
|
|
|
TV_MESSAGE (LDPL_INFO, " Result: %s", result);
|
|
|
|
}
|
|
|
|
rv = tv_get_symbols_v2 (claimfile->file.handle, claimfile->n_syms_used,
|
|
|
|
claimfile->symbols);
|
|
|
|
if (rv != LDPS_OK)
|
|
|
|
return rv;
|
|
|
|
for (n = 0; n < claimfile->n_syms_used; n++)
|
|
|
|
TV_MESSAGE (LDPL_INFO, "Sym: '%s%s%s' Resolution: %s",
|
|
|
|
claimfile->symbols[n].name,
|
|
|
|
claimfile->symbols[n].version ? "@" : "",
|
|
|
|
(claimfile->symbols[n].version
|
|
|
|
? claimfile->symbols[n].version : ""),
|
|
|
|
resolutions[claimfile->symbols[n].resolution]);
|
|
|
|
fd = claimfile->file.fd;
|
|
|
|
filename = xstrdup (claimfile->file.name);
|
|
|
|
rv = tv_release_input_file (claimfile->file.handle);
|
|
|
|
if (rv != LDPS_OK)
|
|
|
|
{
|
|
|
|
free (filename);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
if (read (fd, buffer, sizeof (buffer)) >= 0)
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_FATAL, "Unreleased file descriptor on: %s",
|
|
|
|
claimfile->file.name);
|
|
|
|
free (filename);
|
|
|
|
return LDPS_ERR;
|
|
|
|
}
|
|
|
|
free (filename);
|
|
|
|
}
|
|
|
|
for ( ; addfile ; addfile = addfile->next)
|
|
|
|
{
|
|
|
|
enum ld_plugin_status rv;
|
|
|
|
if (addfile->type == ADD_LIB && tv_add_input_library)
|
|
|
|
rv = (*tv_add_input_library) (addfile->name);
|
|
|
|
else if (addfile->type == ADD_FILE && tv_add_input_file)
|
|
|
|
rv = (*tv_add_input_file) (addfile->name);
|
|
|
|
else if (addfile->type == ADD_DIR && tv_set_extra_library_path)
|
|
|
|
rv = (*tv_set_extra_library_path) (addfile->name);
|
|
|
|
else
|
|
|
|
rv = LDPS_ERR;
|
|
|
|
if (rv != LDPS_OK)
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
fflush (NULL);
|
|
|
|
return all_symbols_read_ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Standard plugin API registerable hook. */
|
|
|
|
static enum ld_plugin_status
|
|
|
|
oncleanup (void)
|
|
|
|
{
|
|
|
|
TV_MESSAGE (LDPL_INFO, "hook called: cleanup.");
|
|
|
|
fflush (NULL);
|
|
|
|
return cleanup_ret;
|
|
|
|
}
|