Date: Fri, 8 Jan 2021 00:14:09 GMT From: Ed Maste <emaste@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 0713c7b88cf0 - main - ldd: Retire aout support Message-ID: <202101080014.1080E9JH033410@gitrepo.freebsd.org>
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The branch main has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=0713c7b88cf08df95a2a2102f81d84b090afb510 commit 0713c7b88cf08df95a2a2102f81d84b090afb510 Author: Ed Maste <emaste@FreeBSD.org> AuthorDate: 2021-01-08 00:14:01 +0000 Commit: Ed Maste <emaste@FreeBSD.org> CommitDate: 2021-01-08 00:14:01 +0000 ldd: Retire aout support Userland aout support has not been required since FreeBSD 2.x. If someone needs to use FreeBSD 2 shared libraries they will be best served by using a FreeBSD 2 ldd, perhaps as part of a jail with a full FreeBSD 2.x install. Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D27478 --- usr.bin/ldd/Makefile | 3 - usr.bin/ldd/extern.h | 32 --- usr.bin/ldd/ldd.c | 38 ---- usr.bin/ldd/sods.c | 573 --------------------------------------------------- 4 files changed, 646 deletions(-) diff --git a/usr.bin/ldd/Makefile b/usr.bin/ldd/Makefile index fd2b7b4d9ccb..5d2beb7bb6c0 100644 --- a/usr.bin/ldd/Makefile +++ b/usr.bin/ldd/Makefile @@ -2,8 +2,5 @@ PROG?= ldd SRCS= ldd.c -.if ${MACHINE_CPUARCH} == "i386" -SRCS+= sods.c -.endif .include <bsd.prog.mk> diff --git a/usr.bin/ldd/extern.h b/usr.bin/ldd/extern.h deleted file mode 100644 index 840ca0ea52db..000000000000 --- a/usr.bin/ldd/extern.h +++ /dev/null @@ -1,32 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (c) 2002 FreeBSD, Inc - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -extern void dump_file(const char *); -extern int error_count; - diff --git a/usr.bin/ldd/ldd.c b/usr.bin/ldd/ldd.c index f4e76368b31e..892cf9bb3cc5 100644 --- a/usr.bin/ldd/ldd.c +++ b/usr.bin/ldd/ldd.c @@ -48,14 +48,6 @@ __FBSDID("$FreeBSD$"); #include <string.h> #include <unistd.h> -#include "extern.h" - -/* We don't support a.out executables on arm64 and riscv */ -#if !defined(__aarch64__) && !defined(__riscv) -#include <a.out.h> -#define AOUT_SUPPORTED -#endif - /* * 32-bit ELF data structures can only be used if the system header[s] declare * them. There is no official macro for determining whether they are declared, @@ -80,7 +72,6 @@ static int is_executable(const char *fname, int fd, int *is_shlib, static void usage(void); #define TYPE_UNKNOWN 0 -#define TYPE_AOUT 1 #define TYPE_ELF 2 /* Architecture default */ #if __ELF_WORD_SIZE > 32 && defined(ELF32_SUPPORTED) #define TYPE_ELF32 3 /* Explicit 32 bits on architectures >32 bits */ @@ -178,14 +169,6 @@ main(int argc, char *argv[]) /* NOTREACHED */ } -#ifdef __i386__ - if (vflag) { - for (c = 0; c < argc; c++) - dump_file(argv[c]); - exit(error_count == 0 ? EXIT_SUCCESS : EXIT_FAILURE); - } -#endif - rval = 0; for (; argc > 0; argc--, argv++) { int fd, status, is_shlib, rv, type; @@ -204,7 +187,6 @@ main(int argc, char *argv[]) switch (type) { case TYPE_ELF: - case TYPE_AOUT: break; #if __ELF_WORD_SIZE > 32 && defined(ELF32_SUPPORTED) case TYPE_ELF32: @@ -281,9 +263,6 @@ static int is_executable(const char *fname, int fd, int *is_shlib, int *type) { union { -#ifdef AOUT_SUPPORTED - struct exec aout; -#endif #if __ELF_WORD_SIZE > 32 && defined(ELF32_SUPPORTED) Elf32_Ehdr elf32; #endif @@ -307,23 +286,6 @@ is_executable(const char *fname, int fd, int *is_shlib, int *type) return (0); } -#ifdef AOUT_SUPPORTED - if ((size_t)n >= sizeof(hdr.aout) && !N_BADMAG(hdr.aout)) { - /* a.out file */ - if ((N_GETFLAG(hdr.aout) & EX_DPMASK) != EX_DYNAMIC -#if 1 /* Compatibility */ - || hdr.aout.a_entry < __LDPGSZ -#endif - ) { - warnx("%s: not a dynamic executable", fname); - return (0); - } - *type = TYPE_AOUT; - warnx("%s: aout support is deprecated", fname); - return (1); - } -#endif - #if __ELF_WORD_SIZE > 32 && defined(ELF32_SUPPORTED) if ((size_t)n >= sizeof(hdr.elf32) && IS_ELF(hdr.elf32) && hdr.elf32.e_ident[EI_CLASS] == ELFCLASS32) { diff --git a/usr.bin/ldd/sods.c b/usr.bin/ldd/sods.c deleted file mode 100644 index d65b0c82899d..000000000000 --- a/usr.bin/ldd/sods.c +++ /dev/null @@ -1,573 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (C) 1996-1997 John D. Polstra. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY JOHN D. POLSTRA AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL JOHN D. POLSTRA OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/mman.h> -#include <sys/stat.h> - -#include <machine/elf.h> - -#include <arpa/inet.h> - -#include <a.out.h> -#include <assert.h> -#include <ctype.h> -#include <err.h> -#include <fcntl.h> -#include <sys/link_aout.h> -#include <stab.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "extern.h" - -#define PAGE_SIZE 4096 /* i386 specific */ - -#ifndef N_SETA -#define N_SETA 0x14 /* Absolute set element symbol */ -#endif /* This is input to LD, in a .o file. */ - -#ifndef N_SETT -#define N_SETT 0x16 /* Text set element symbol */ -#endif /* This is input to LD, in a .o file. */ - -#ifndef N_SETD -#define N_SETD 0x18 /* Data set element symbol */ -#endif /* This is input to LD, in a .o file. */ - -#ifndef N_SETB -#define N_SETB 0x1A /* Bss set element symbol */ -#endif /* This is input to LD, in a .o file. */ - -#ifndef N_SETV -#define N_SETV 0x1C /* Pointer to set vector in data area. */ -#endif /* This is output from LD. */ - -#ifdef STANDALONE -static -#endif - -static void dump_rels(const char *, const struct relocation_info *, - unsigned long, const char *(*)(unsigned long), unsigned char *); -static void dump_segs(void); -static void dump_sods(void); -static void dump_sym(const struct nlist *); -static void dump_syms(void); - -static void dump_rtsyms(void); - -static const char *rtsym_name(unsigned long); -static const char *sym_name(unsigned long); - -#ifdef STANDALONE -static -#endif -int error_count; - -/* - * Variables ending in _base are pointers to things in our address space, - * i.e., in the file itself. - * - * Variables ending in _addr are adjusted according to where things would - * actually appear in memory if the file were loaded. - */ -static const char *file_base; -static const char *text_base; -static const char *data_base; -static const struct relocation_info *rel_base; -static const struct nlist *sym_base; -static const char *str_base; - -static const struct relocation_info *rtrel_base; -static const struct nzlist *rtsym_base; -static const char *rtstr_base; - -static const struct exec *ex; -static const struct _dynamic *dyn; -static const struct section_dispatch_table *sdt; - -static const char *text_addr; -static const char *data_addr; - -static unsigned long rel_count; -static unsigned long sym_count; - -static unsigned long rtrel_count; -static unsigned long rtsym_count; - -/* Dynamically allocated flags, 1 byte per symbol, to record whether each - symbol was referenced by a relocation entry. */ -static unsigned char *sym_used; -static unsigned char *rtsym_used; - -static unsigned long origin; /* What values are relocated relative to */ - -#ifdef STANDALONE -int -main(int argc, char *argv[]) -{ - int i; - - for (i = 1; i < argc; ++i) - dump_file(argv[i]); - - return error_count == 0 ? EXIT_SUCCESS : EXIT_FAILURE; -} -#endif - -static inline const void *align_struct(const void *expr) -{ - assert(!(((int)expr) & 3)); - return expr; -} - -static inline const void *align_long(const void *expr) -{ - assert(!(((int)expr) & 3)); - return expr; -} - -static inline const void *align_short(const void *expr) -{ - assert(!(((int)expr) & 1)); - return expr; -} - -#ifdef STANDALONE -static -#endif -void -dump_file(const char *fname) -{ - int fd; - struct stat sb; - caddr_t objbase; - - if (stat(fname, &sb) == -1) { - warnx("cannot stat \"%s\"", fname); - ++error_count; - return; - } - - if ((sb.st_mode & S_IFMT) != S_IFREG) { - warnx("\"%s\" is not a regular file", fname); - ++error_count; - return; - } - - if ((fd = open(fname, O_RDONLY, 0)) == -1) { - warnx("cannot open \"%s\"", fname); - ++error_count; - return; - } - - objbase = mmap(0, sb.st_size, PROT_READ, MAP_SHARED, fd, 0); - if (objbase == (caddr_t) -1) { - warnx("cannot mmap \"%s\"", fname); - ++error_count; - close(fd); - return; - } - - close(fd); - - file_base = (const char *) objbase; /* Makes address arithmetic easier */ - - if (IS_ELF(*(const Elf32_Ehdr*) align_struct(file_base))) { - warnx("%s: this is an ELF program; use readelf to examine", fname); - ++error_count; - munmap(objbase, sb.st_size); - return; - } - - ex = (const struct exec *) align_struct(file_base); - - printf("%s: a_midmag = 0x%lx\n", fname, (long)ex->a_midmag); - printf(" magic = 0x%lx = 0%lo, netmagic = 0x%lx = 0%lo\n", - (long)N_GETMAGIC(*ex), (long)N_GETMAGIC(*ex), - (long)N_GETMAGIC_NET(*ex), (long)N_GETMAGIC_NET(*ex)); - - if (N_BADMAG(*ex)) { - warnx("%s: bad magic number", fname); - ++error_count; - munmap(objbase, sb.st_size); - return; - } - - printf(" a_text = 0x%lx\n", (long)ex->a_text); - printf(" a_data = 0x%lx\n", (long)ex->a_data); - printf(" a_bss = 0x%lx\n", (long)ex->a_bss); - printf(" a_syms = 0x%lx\n", (long)ex->a_syms); - printf(" a_entry = 0x%lx\n", (long)ex->a_entry); - printf(" a_trsize = 0x%lx\n", (long)ex->a_trsize); - printf(" a_drsize = 0x%lx\n", (long)ex->a_drsize); - - text_base = file_base + N_TXTOFF(*ex); - data_base = file_base + N_DATOFF(*ex); - rel_base = (const struct relocation_info *) - align_struct(file_base + N_RELOFF(*ex)); - sym_base = (const struct nlist *) align_struct(file_base + N_SYMOFF(*ex)); - str_base = file_base + N_STROFF(*ex); - - rel_count = (ex->a_trsize + ex->a_drsize) / sizeof rel_base[0]; - assert(rel_count * sizeof rel_base[0] == ex->a_trsize + ex->a_drsize); - sym_count = ex->a_syms / sizeof sym_base[0]; - assert(sym_count * sizeof sym_base[0] == ex->a_syms); - - if (sym_count != 0) { - sym_used = (unsigned char *) calloc(sym_count, sizeof(unsigned char)); - assert(sym_used != NULL); - } - - printf(" Entry = 0x%lx\n", (long)ex->a_entry); - printf(" Text offset = %x, address = %lx\n", N_TXTOFF(*ex), - (long)N_TXTADDR(*ex)); - printf(" Data offset = %lx, address = %lx\n", (long)N_DATOFF(*ex), - (long)N_DATADDR(*ex)); - - /* - * In an executable program file, everything is relocated relative to - * the assumed run-time load address, i.e., N_TXTADDR(*ex), i.e., 0x1000. - * - * In a shared library file, everything is relocated relative to the - * start of the file, i.e., N_TXTOFF(*ex), i.e., 0. - * - * The way to tell the difference is by looking at ex->a_entry. If it - * is >= 0x1000, then we have an executable program. Otherwise, we - * have a shared library. - * - * When a program is executed, the entire file is mapped into memory, - * including the a.out header and so forth. But it is not mapped at - * address 0; rather it is mapped at address 0x1000. The first page - * of the user's address space is left unmapped in order to catch null - * pointer dereferences. - * - * In this program, when we map in an executable program, we have to - * simulate the empty page by decrementing our assumed base address by - * a pagesize. - */ - - text_addr = text_base; - data_addr = data_base; - origin = 0; - - if (ex->a_entry >= PAGE_SIZE) { /* Executable, not a shared library */ - /* - * The fields in the object have already been relocated on the - * assumption that the object will be loaded at N_TXTADDR(*ex). - * We have to compensate for that. - */ - text_addr -= PAGE_SIZE; - data_addr -= PAGE_SIZE; - origin = PAGE_SIZE; - printf(" Program, origin = %lx\n", origin); - } else if (N_GETFLAG(*ex) & EX_DYNAMIC) - printf(" Shared library, origin = %lx\n", origin); - else - printf(" Object file, origin = %lx\n", origin); - - if (N_GETFLAG(*ex) & EX_DYNAMIC) { - dyn = (const struct _dynamic *) align_struct(data_base); - printf(" Dynamic version = %d\n", dyn->d_version); - - sdt = (const struct section_dispatch_table *) - align_struct(text_addr + (unsigned long) dyn->d_un.d_sdt); - - rtrel_base = (const struct relocation_info *) - align_struct(text_addr + sdt->sdt_rel); - rtrel_count = (sdt->sdt_hash - sdt->sdt_rel) / sizeof rtrel_base[0]; - assert(rtrel_count * sizeof rtrel_base[0] == - (size_t)(sdt->sdt_hash - sdt->sdt_rel)); - - rtsym_base = (const struct nzlist *) - align_struct(text_addr + sdt->sdt_nzlist); - rtsym_count = (sdt->sdt_strings - sdt->sdt_nzlist) / - sizeof rtsym_base[0]; - assert(rtsym_count * sizeof rtsym_base[0] == - (size_t)(sdt->sdt_strings - sdt->sdt_nzlist)); - - if (rtsym_count != 0) { - rtsym_used = (unsigned char *) calloc(rtsym_count, - sizeof(unsigned char)); - assert(rtsym_used != NULL); - } - - rtstr_base = text_addr + sdt->sdt_strings; - } - - dump_segs(); - dump_sods(); - dump_rels("Relocations", rel_base, rel_count, sym_name, sym_used); - dump_syms(); - - dump_rels("Run-time relocations", rtrel_base, rtrel_count, rtsym_name, - rtsym_used); - dump_rtsyms(); - - if (rtsym_used != NULL) { - free(rtsym_used); - rtsym_used = NULL; - } - if (sym_used != NULL) { - free(sym_used); - sym_used = NULL; - } - munmap(objbase, sb.st_size); -} - -static void -dump_rels(const char *label, const struct relocation_info *base, - unsigned long count, const char *(*name)(unsigned long), - unsigned char *sym_used_flags) -{ - unsigned long i; - - printf(" %s:\n", label); - for (i = 0; i < count; ++i) { - const struct relocation_info *r = &base[i]; - unsigned int size; - char contents[16]; - - size = 1u << r->r_length; - - if (origin <= (unsigned long)r->r_address - && (unsigned long)r->r_address < origin + ex->a_text + ex->a_data - && 1 <= size && size <= 4) { - /* - * XXX - This can cause unaligned accesses. OK for the - * i386, not so for other architectures. - */ - switch (size) { - case 1: - snprintf(contents, sizeof contents, " [%02x]", - *(unsigned const char *)(text_addr + r->r_address)); - break; - case 2: - snprintf(contents, sizeof contents, " [%04x]", - *(unsigned const short *) - align_short(text_addr + r->r_address)); - break; - case 4: - snprintf(contents, sizeof contents, "[%08lx]", - *(unsigned const long *) - align_long(text_addr + r->r_address)); - break; - } - } else - snprintf(contents, sizeof contents, " "); - - printf(" %6lu %8x/%u %s %c%c%c%c%c%c", i, - r->r_address, size, - contents, - r->r_extern ? 'e' : '-', - r->r_jmptable ? 'j' : '-', - r->r_relative ? 'r' : '-', - r->r_baserel ? 'b' : '-', - r->r_pcrel ? 'p' : '-', - r->r_copy ? 'c' : '-'); - - if (r->r_extern || r->r_baserel || r->r_jmptable || r->r_copy) { - printf(" %4u %s", r->r_symbolnum, name(r->r_symbolnum)); - sym_used_flags[r->r_symbolnum] = 1; - } - - printf("\n"); - } -} - -static void -dump_rtsyms(void) -{ - unsigned long i; - - printf(" Run-time symbols:\n"); - for (i = 0; i < rtsym_count; ++i) { - printf(" %6lu%c ", i, rtsym_used[i] ? '*' : ' '); - dump_sym(&rtsym_base[i].nlist); - printf("/%-5ld %s\n", rtsym_base[i].nz_size, rtsym_name(i)); - } -} - -static void -dump_segs(void) -{ - printf(" Text segment starts at address %lx\n", origin + N_TXTOFF(*ex)); - if (N_GETFLAG(*ex) & EX_DYNAMIC) { - printf(" rel starts at %lx\n", sdt->sdt_rel); - printf(" hash starts at %lx\n", sdt->sdt_hash); - printf(" nzlist starts at %lx\n", sdt->sdt_nzlist); - printf(" strings starts at %lx\n", sdt->sdt_strings); - } - - printf(" Data segment starts at address %lx\n", origin + N_DATOFF(*ex)); - if (N_GETFLAG(*ex) & EX_DYNAMIC) { - printf(" _dynamic starts at %lx\n", origin + N_DATOFF(*ex)); - printf(" so_debug starts at %lx\n", (unsigned long) dyn->d_debug); - printf(" sdt starts at %lx\n", (unsigned long) dyn->d_un.d_sdt); - printf(" got starts at %lx\n", sdt->sdt_got); - printf(" plt starts at %lx\n", sdt->sdt_plt); - printf(" rest of stuff starts at %lx\n", - sdt->sdt_plt + sdt->sdt_plt_sz); - } -} - -static void -dump_sods(void) -{ - long sod_offset; - long paths_offset; - - if (dyn == NULL) /* Not a shared object */ - return; - - sod_offset = sdt->sdt_sods; - printf(" Shared object dependencies:\n"); - while (sod_offset != 0) { - const struct sod *sodp = (const struct sod *) align_struct((text_addr + sod_offset)); - const char *name = (const char *) (text_addr + sodp->sod_name); - - if (sodp->sod_library) - printf(" -l%-16s version %d.%d\n", name, sodp->sod_major, - sodp->sod_minor); - else - printf(" %s\n", name); - sod_offset = sodp->sod_next; - } - paths_offset = sdt->sdt_paths; - printf(" Shared object additional paths:\n"); - if (paths_offset != 0) { - printf(" %s\n", (const char *)(text_addr + paths_offset)); - } else { - printf(" (none)\n"); - } -} - -static void -dump_sym(const struct nlist *np) -{ - char type[8]; - char aux[8]; - char weak; - char *p; - - switch (np->n_type & ~N_EXT) { - case N_UNDF: strcpy(type, "undf"); break; - case N_ABS: strcpy(type, "abs"); break; - case N_TEXT: strcpy(type, "text"); break; - case N_DATA: strcpy(type, "data"); break; - case N_BSS: strcpy(type, "bss"); break; - case N_INDR: strcpy(type, "indr"); break; - case N_SIZE: strcpy(type, "size"); break; - case N_COMM: strcpy(type, "comm"); break; - case N_SETA: strcpy(type, "seta"); break; - case N_SETT: strcpy(type, "sett"); break; - case N_SETD: strcpy(type, "setd"); break; - case N_SETB: strcpy(type, "setb"); break; - case N_SETV: strcpy(type, "setv"); break; - case N_FN: strcpy(type, np->n_type&N_EXT ? "fn" : "warn"); break; - case N_GSYM: strcpy(type, "gsym"); break; - case N_FNAME: strcpy(type, "fname"); break; - case N_FUN: strcpy(type, "fun"); break; - case N_STSYM: strcpy(type, "stsym"); break; - case N_LCSYM: strcpy(type, "lcsym"); break; - case N_MAIN: strcpy(type, "main"); break; - case N_PC: strcpy(type, "pc"); break; - case N_RSYM: strcpy(type, "rsym"); break; - case N_SLINE: strcpy(type, "sline"); break; - case N_DSLINE: strcpy(type, "dsline"); break; - case N_BSLINE: strcpy(type, "bsline"); break; - case N_SSYM: strcpy(type, "ssym"); break; - case N_SO: strcpy(type, "so"); break; - case N_LSYM: strcpy(type, "lsym"); break; - case N_BINCL: strcpy(type, "bincl"); break; - case N_SOL: strcpy(type, "sol"); break; - case N_PSYM: strcpy(type, "psym"); break; - case N_EINCL: strcpy(type, "eincl"); break; - case N_ENTRY: strcpy(type, "entry"); break; - case N_LBRAC: strcpy(type, "lbrac"); break; - case N_EXCL: strcpy(type, "excl"); break; - case N_RBRAC: strcpy(type, "rbrac"); break; - case N_BCOMM: strcpy(type, "bcomm"); break; - case N_ECOMM: strcpy(type, "ecomm"); break; - case N_ECOML: strcpy(type, "ecoml"); break; - case N_LENG: strcpy(type, "leng"); break; - default: - snprintf(type, sizeof type, "%#02x", np->n_type); - break; - } - - if (np->n_type & N_EXT && type[0] != '0') - for (p = type; *p != '\0'; ++p) - *p = toupper(*p); - - switch (N_AUX(np)) { - case 0: strcpy(aux, ""); break; - case AUX_OBJECT: strcpy(aux, "objt"); break; - case AUX_FUNC: strcpy(aux, "func"); break; - default: snprintf(aux, sizeof aux, "%#01x", N_AUX(np)); break; - } - - weak = N_BIND(np) == BIND_WEAK ? 'w' : ' '; - - printf("%c%-6s %-4s %8lx", weak, type, aux, np->n_value); -} - -static void -dump_syms(void) -{ - unsigned long i; - - printf(" Symbols:\n"); - for (i = 0; i < sym_count; ++i) { - printf(" %6lu%c ", i, sym_used[i] ? '*' : ' '); - dump_sym(&sym_base[i]); - printf(" %s\n", sym_name(i)); - } -} - -static const char * -rtsym_name(unsigned long n) -{ - assert(n < rtsym_count); - if (rtsym_base[n].nz_strx == 0) - return ""; - return rtstr_base + rtsym_base[n].nz_strx; -} - -static const char * -sym_name(unsigned long n) -{ - assert(n < sym_count); - if (sym_base[n].n_un.n_strx == 0) - return ""; - return str_base + sym_base[n].n_un.n_strx; -}
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