e6209940de
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
147 lines
4.3 KiB
C
147 lines
4.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 1996-1998 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Support for printing debugging messages.
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include "debug.h"
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#include "rtld.h"
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#include "rtld_printf.h"
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static const char rel_header[] =
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" symbol name r_info r_offset st_value st_size address value\n"
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" ------------------------------------------------------------------------------\n";
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static const char rel_format[] = " %-25s %6lx %08lx %08lx %7d %10p %08lx\n";
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int debug = 0;
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void
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debug_printf(const char *format, ...)
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{
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if (debug) {
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va_list ap;
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va_start(ap, format);
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rtld_vfdprintf(STDERR_FILENO, format, ap);
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rtld_fdputchar(STDERR_FILENO, '\n');
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va_end(ap);
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}
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}
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void
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dump_relocations (Obj_Entry *obj0)
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{
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Obj_Entry *obj;
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for (obj = globallist_curr(obj0); obj != NULL;
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obj = globallist_next(obj)) {
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dump_obj_relocations(obj);
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}
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}
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void
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dump_obj_relocations (Obj_Entry *obj)
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{
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rtld_printf("Object \"%s\", relocbase %p\n", obj->path, obj->relocbase);
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if (obj->relsize) {
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rtld_printf("Non-PLT Relocations: %ld\n",
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(obj->relsize / sizeof(Elf_Rel)));
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dump_Elf_Rel(obj, obj->rel, obj->relsize);
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}
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if (obj->relasize) {
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rtld_printf("Non-PLT Relocations with Addend: %ld\n",
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(obj->relasize / sizeof(Elf_Rela)));
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dump_Elf_Rela(obj, obj->rela, obj->relasize);
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}
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if (obj->pltrelsize) {
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rtld_printf("PLT Relocations: %ld\n",
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(obj->pltrelsize / sizeof(Elf_Rel)));
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dump_Elf_Rel(obj, obj->pltrel, obj->pltrelsize);
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}
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if (obj->pltrelasize) {
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rtld_printf("PLT Relocations with Addend: %ld\n",
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(obj->pltrelasize / sizeof(Elf_Rela)));
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dump_Elf_Rela(obj, obj->pltrela, obj->pltrelasize);
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}
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}
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void
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dump_Elf_Rel (Obj_Entry *obj, const Elf_Rel *rel0, u_long relsize)
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{
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const Elf_Rel *rel;
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const Elf_Rel *rellim;
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const Elf_Sym *sym;
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Elf_Addr *dstaddr;
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rtld_putstr(rel_header);
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rellim = (const Elf_Rel *)((const char *)rel0 + relsize);
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for (rel = rel0; rel < rellim; rel++) {
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dstaddr = (Elf_Addr *)(obj->relocbase + rel->r_offset);
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sym = obj->symtab + ELF_R_SYM(rel->r_info);
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rtld_printf(rel_format,
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obj->strtab + sym->st_name,
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(u_long)rel->r_info, (u_long)rel->r_offset,
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(u_long)sym->st_value, (int)sym->st_size,
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dstaddr, (u_long)*dstaddr);
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}
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return;
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}
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void
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dump_Elf_Rela (Obj_Entry *obj, const Elf_Rela *rela0, u_long relasize)
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{
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const Elf_Rela *rela;
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const Elf_Rela *relalim;
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const Elf_Sym *sym;
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Elf_Addr *dstaddr;
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rtld_putstr(rel_header);
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relalim = (const Elf_Rela *)((const char *)rela0 + relasize);
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for (rela = rela0; rela < relalim; rela++) {
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dstaddr = (Elf_Addr *)(obj->relocbase + rela->r_offset);
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sym = obj->symtab + ELF_R_SYM(rela->r_info);
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rtld_printf(rel_format,
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obj->strtab + sym->st_name,
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(u_long)rela->r_info, (u_long)rela->r_offset,
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(u_long)sym->st_value, (int)sym->st_size,
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dstaddr, (u_long)*dstaddr);
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}
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return;
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}
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