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主页 / unix / 问题 / 792460
Accepted
Stewart
Stewart
Asked: 2025-03-14 23:06:40 +0800 CST2025-03-14 23:06:40 +0800 CST 2025-03-14 23:06:40 +0800 CST

Debian trixie libc 转换后 dlopen() 失败:“无法启用可执行堆栈”

  • 772

自 2018 年以来,我一直在运行相同的 32 位第三方闭源二进制文件。本周在 Debiantrixie/testing服务器上(可能是由于libc6过渡?),该程序在启动时开始崩溃。不幸的是,我无法让原始供应商为我重新编译它。

我唯一的提示是在标准输出上打印的这些行:

Start of process LocalCtrl...
SL - error in dlopen(libDSS_Operator.so):
LocalCtrl initialization failed...

我要么让它工作起来,要么就承诺永远支持 Deb12。

排除故障/修复此问题的最佳方法是什么?

我可以使用此示例程序在更加简单的环境中重现此过程:

#include <stdio.h>
#include <dlfcn.h>

int main() {
    void* so = dlopen(
        "/opt/<package>/Cots/OPERATOR/libDSS_Operator.so", 
        RTLD_NOW
    );

    if (so == NULL) {
        printf("dlopen() failed: %s\n", dlerror());
        return 1;
    } 
    printf("Success\n");
    dlclose(so);
    return 0;
}

我看了一下ldd、、、和strace。LD_DEBUG=libsreadelf

在 Deb11 机器上,该过程运行正常,我得到:

$ dpkg --print-foreign-architectures
i386

$ sudo apt install gcc-multilib

$ gcc main.c -m32 -ldl

$ file a.out
a.out: ELF 32-bit LSB pie executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, BuildID[sha1]=eabedb331eafcdef4e2f839f71df7fc7330069d2, for GNU/Linux 3.2.0, not stripped

$ ./a.out
Success

$ ldd /opt/<package>/Cots/OPERATOR/libDSS_Operator.so
    linux-gate.so.1 (0xf7f25000)
    libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf7d1b000)
    libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xf7c17000)
    /lib/ld-linux.so.2 (0xf7f27000)

$ file /opt/<pacakge>/Cots/OPERATOR/libDSS_Operator.so
/opt/<package>/Cots/OPERATOR/libDSS_Operator.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, not stripped

$ strace ./a.out
execve("./a.out", ["./a.out"], 0x7ffeb7d8e5b0 /* 22 vars */) = 0
[ Process PID=13616 runs in 32 bit mode. ]
brk(NULL)                               = 0x5851f000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7f78000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=102958, ...}) = 0
mmap2(NULL, 102958, PROT_READ, MAP_PRIVATE, 3, 0) = 0xf7f5e000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/i386-linux-gnu/libdl.so.2", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0000\21\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=17924, ...}) = 0
mmap2(NULL, 20596, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7f58000
mmap2(0xf7f59000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xf7f59000
mmap2(0xf7f5b000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0xf7f5b000
mmap2(0xf7f5c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0xf7f5c000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/i386-linux-gnu/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\260\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1987668, ...}) = 0
mmap2(NULL, 1996648, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7d70000
mprotect(0xf7d89000, 1871872, PROT_NONE) = 0
mmap2(0xf7d89000, 1392640, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0xf7d89000
mmap2(0xf7edd000, 475136, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16d000) = 0xf7edd000
mmap2(0xf7f52000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e1000) = 0xf7f52000
mmap2(0xf7f55000, 10088, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xf7f55000
close(3)                                = 0
set_thread_area({entry_number=-1, base_addr=0xf7f794c0, limit=0x0fffff, seg_32bit=1, contents=0, read_exec_only=0, limit_in_pages=1, seg_not_present=0, useable=1}) = 0 (entry_number=12)
mprotect(0xf7f52000, 8192, PROT_READ)   = 0
mprotect(0xf7f5c000, 4096, PROT_READ)   = 0
mprotect(0x56648000, 4096, PROT_READ)   = 0
mprotect(0xf7faa000, 4096, PROT_READ)   = 0
munmap(0xf7f5e000, 102958)              = 0
brk(NULL)                               = 0x5851f000
brk(0x58540000)                         = 0x58540000
brk(0x58541000)                         = 0x58541000
openat(AT_FDCWD, "/opt/<package>/Cots/OPERATOR/libDSS_Operator.so", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0X\6\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=4398, ...}) = 0
mmap2(NULL, 6844, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7f76000
mmap2(0xf7f77000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0xf7f77000
mprotect(0xf7faa000, 2636, PROT_READ|PROT_WRITE) = 0
mprotect(0xf7faa000, 2636, PROT_READ)   = 0
mprotect(0xffa54000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN) = 0
close(3)                                = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=102958, ...}) = 0
mmap2(NULL, 102958, PROT_READ, MAP_PRIVATE, 3, 0) = 0xf7d56000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/i386-linux-gnu/libm.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220\241\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1058344, ...}) = 0
mmap2(NULL, 1060976, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7c52000
mmap2(0xf7c5c000, 790528, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0xf7c5c000
mmap2(0xf7d1d000, 225280, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xcb000) = 0xf7d1d000
mmap2(0xf7d54000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x101000) = 0xf7d54000
close(3)                                = 0
mprotect(0xf7d54000, 4096, PROT_READ)   = 0
mprotect(0xf7f76000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC) = 0
mprotect(0xf7f76000, 4096, PROT_READ|PROT_EXEC) = 0
munmap(0xf7d56000, 102958)              = 0
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(0x88, 0x4), ...}) = 0
write(1, "Success\n", 8Success
)                = 8
munmap(0xf7f76000, 6844)                = 0
munmap(0xf7c52000, 1060976)             = 0
exit_group(0)                           = ?
+++ exited with 0 +++


$ LD_DEBUG=libs ./a.out
     13617: find library=libdl.so.2 [0]; searching
     13617:  search cache=/etc/ld.so.cache
     13617:   trying file=/lib/i386-linux-gnu/libdl.so.2
     13617: 
     13617: find library=libc.so.6 [0]; searching
     13617:  search cache=/etc/ld.so.cache
     13617:   trying file=/lib/i386-linux-gnu/libc.so.6
     13617: 
     13617: 
     13617: calling init: /lib/i386-linux-gnu/libc.so.6
     13617: 
     13617: 
     13617: calling init: /lib/i386-linux-gnu/libdl.so.2
     13617: 
     13617: 
     13617: initialize program: ./a.out
     13617: 
     13617: 
     13617: transferring control: ./a.out
     13617: 
     13617: find library=libm.so.6 [0]; searching
     13617:  search cache=/etc/ld.so.cache
     13617:   trying file=/lib/i386-linux-gnu/libm.so.6
     13617: 
     13617: 
     13617: calling init: /lib/i386-linux-gnu/libm.so.6
     13617: 
Success
     13617: 
     13617: calling fini: /opt/<package>/Cots/OPERATOR/libDSS_Operator.so [0]
     13617: 
     13617: 
     13617: calling fini: /lib/i386-linux-gnu/libm.so.6 [0]
     13617: 
     13617: 
     13617: calling fini: ./a.out [0]
     13617: 
     13617: 
     13617: calling fini: /lib/i386-linux-gnu/libdl.so.2 [0]
     13617: 

在遇到问题的 Deb13 服务器上,输出要短得多:

$ dpkg --print-foreign-architectures
i386

$ sudo apt install gcc-multilib

$ gcc main.c -m32 -ldl

$ file a.out
a.out: ELF 32-bit LSB pie executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, BuildID[sha1]=ab5677099dd8d392861f817ee098264a76a16792, for GNU/Linux 3.2.0, not stripped

$ ./a.out 
dlopen() failed: /opt/<package>/Cots/OPERATOR/libDSS_Operator.so: cannot enable executable stack as shared object requires: Invalid argument

$ ldd /opt/<package>/Cots/OPERATOR/libDSS_Operator.so 
    linux-gate.so.1 (0xf7ed4000)
    libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf7c70000)
    libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xf7b53000)
    /lib/ld-linux.so.2 (0xf7ed6000)

$ file /opt/<pacakge>/Cots/OPERATOR/libDSS_Operator.so
.../libDSS_Operator.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, not stripped

$ strace ./a.out
execve("./a.out", ["./a.out"], 0x7ffccb5bca20 /* 24 vars */) = 0
[ Process PID=8276 runs in 32 bit mode. ]
brk(NULL)                               = 0x57fac000
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7f4a000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH, STATX_BASIC_STATS, {stx_mask=STATX_BASIC_STATS|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=122402, ...}) = 0
mmap2(NULL, 122402, PROT_READ, MAP_PRIVATE, 3, 0) = 0xf7f2c000
close(3)                                = 0
openat(AT_FDCWD, "/lib/i386-linux-gnu/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\0O\2\0004\0\0\0"..., 512) = 512
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH, STATX_BASIC_STATS, {stx_mask=STATX_BASIC_STATS|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFREG|0755, stx_size=2315004, ...}) = 0
mmap2(NULL, 2349360, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7cee000
mmap2(0xf7d11000, 1609728, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0xf7d11000
mmap2(0xf7e9a000, 544768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0xf7e9a000
mmap2(0xf7f1f000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x231000) = 0xf7f1f000
mmap2(0xf7f22000, 39216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xf7f22000
close(3)                                = 0
set_thread_area({entry_number=-1, base_addr=0xf7f4b500, limit=0x0fffff, seg_32bit=1, contents=0, read_exec_only=0, limit_in_pages=1, seg_not_present=0, useable=1}) = 0 (entry_number=12)
set_tid_address(0xf7f4b568)             = 8276
set_robust_list(0xf7f4b56c, 12)         = 0
rseq(0xf7f4b480, 0x20, 0, 0x53053053)   = 0
mprotect(0xf7f1f000, 8192, PROT_READ)   = 0
mprotect(0x56575000, 4096, PROT_READ)   = 0
mprotect(0xf7f86000, 8192, PROT_READ)   = 0
ugetrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
munmap(0xf7f2c000, 122402)              = 0
getrandom("\x81\x4a\xa4\xb7", 4, GRND_NONBLOCK) = 4
brk(NULL)                               = 0x57fac000
brk(0x57fcd000)                         = 0x57fcd000
brk(0x57fce000)                         = 0x57fce000
openat(AT_FDCWD, "/opt/<package>/Cots/OPERATOR/libDSS_Operator.so", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0X\6\0\0004\0\0\0"..., 512) = 512
statx(3, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH, STATX_BASIC_STATS, {stx_mask=STATX_BASIC_STATS|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=4398, ...}) = 0
mmap2(NULL, 6844, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xf7f48000
mmap2(0xf7f49000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0xf7f49000
close(3)                                = 0
munmap(0xf7f48000, 6844)                = 0
statx(1, "", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT|AT_EMPTY_PATH, STATX_BASIC_STATS, {stx_mask=STATX_BASIC_STATS|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFCHR|0620, stx_size=0, ...}) = 0
write(1, "dlopen() failed: /opt/..."..., 153dlopen() failed: /opt/<package>/Cots/OPERATOR/libDSS_Operator.so: cannot enable executable stack as shared object requires: Invalid argument
) = 153
exit_group(1)                           = ?
+++ exited with 1 +++

$ LD_DEBUG=libs ./a.out
      8277: find library=libc.so.6 [0]; searching
      8277:  search cache=/etc/ld.so.cache
      8277:   trying file=/lib/i386-linux-gnu/libc.so.6
      8277: 
      8277: 
      8277: calling init: /lib/ld-linux.so.2
      8277: 
      8277: 
      8277: calling init: /lib/i386-linux-gnu/libc.so.6
      8277: 
      8277: 
      8277: initialize program: ./a.out
      8277: 
      8277: 
      8277: transferring control: ./a.out
      8277: 
dlopen() failed: /opt/<package>/Cots/OPERATOR/libDSS_Operator.so: cannot enable executable stack as shared object requires: Invalid argument
      8277: 
      8277: calling fini:  [0]
      8277: 
      8277: 
      8277: calling fini: /lib/i386-linux-gnu/libc.so.6 [0]
      8277: 
      8277: 
      8277: calling fini: /lib/ld-linux.so.2 [0]
      8277:

两台机器上的库的patchelf --print-needed、objdump -p、几乎完全相同,而且出奇地简洁。我做了一个,deb11 和 deb13 输出之间的唯一区别是的符号表的 LOCAL 条目仅在 deb13 中有一个填充的“名称”列。这可能不是很有趣。这是 deb13 输出:readelf -adiffreadelf

$ patchelf --print-needed /opt/<package>/Cots/OPERATOR/libDSS_Operator.so
libc.so.6
libm.so.6

$ objdump -p /opt/<package>/Cots/OPERATOR/libDSS_Operator.so

/opt/<package>/Cots/OPERATOR/libDSS_Operator.so:     file format elf32-i386

Program Header:
    LOAD off    0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**12
         filesz 0x000009e0 memsz 0x000009e0 flags r-x
    LOAD off    0x000009e0 vaddr 0x000019e0 paddr 0x000019e0 align 2**12
         filesz 0x000000dc memsz 0x000000dc flags rw-
 DYNAMIC off    0x00000a2c vaddr 0x00001a2c paddr 0x00001a2c align 2**2
         filesz 0x00000090 memsz 0x00000090 flags rw-

Dynamic Section:
  NEEDED               libc.so.6
  NEEDED               libm.so.6
  HASH                 0x00000094
  STRTAB               0x0000034c
  SYMTAB               0x0000015c
  STRSZ                0x00000121
  SYMENT               0x00000010
  REL                  0x00000470
  RELSZ                0x000001e8
  RELENT               0x00000008
  TEXTREL              0x00000000
  RELCOUNT             0x0000003c




$ readelf -a /opt/<package>/Cots/OPERATOR/libDSS_Operator.so 
ELF Header:
  Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              DYN (Shared object file)
  Machine:                           Intel 80386
  Version:                           0x1
  Entry point address:               0x658
  Start of program headers:          52 (bytes into file)
  Start of section headers:          2940 (bytes into file)
  Flags:                             0x0
  Size of this header:               52 (bytes)
  Size of program headers:           32 (bytes)
  Number of program headers:         3
  Size of section headers:           40 (bytes)
  Number of section headers:         17
  Section header string table index: 14

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .hash             HASH            00000094 000094 0000c8 04   A  2   0  4
  [ 2] .dynsym           DYNSYM          0000015c 00015c 0001f0 10   A  3  14  4
  [ 3] .dynstr           STRTAB          0000034c 00034c 000121 00   A  0   0  1
  [ 4] .rel.dyn          REL             00000470 000470 0001e8 08   A  2   0  4
  [ 5] .text             PROGBITS        00000658 000658 000244 00  AX  0   0  4
  [ 6] .rodata           PROGBITS        000008a0 0008a0 000140 00   A  0   0 16
  [ 7] .data             PROGBITS        000019e0 0009e0 000040 00  WA  0   0 32
  [ 8] .got              PROGBITS        00001a20 000a20 00000c 04  WA  0   0  4
  [ 9] .dynamic          DYNAMIC         00001a2c 000a2c 000090 08  WA  3   0  4
  [10] .sbss             PROGBITS        00001abc 000abc 000000 00   W  0   0  1
  [11] .bss              NOBITS          00001abc 000abc 000000 00  WA  0   0  4
  [12] .comment          PROGBITS        00000000 000abc 000036 00      0   0  1
  [13] .note             NOTE            00000000 000af2 000014 00      0   0  1
  [14] .shstrtab         STRTAB          00000000 000b06 000076 00      0   0  1
  [15] .symtab           SYMTAB          00000000 000e24 000240 10     16  19  4
  [16] .strtab           STRTAB          00000000 001064 0000ca 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
  L (link order), O (extra OS processing required), G (group), T (TLS),
  C (compressed), x (unknown), o (OS specific), E (exclude),
  D (mbind), p (processor specific)

There are no section groups in this file.

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  LOAD           0x000000 0x00000000 0x00000000 0x009e0 0x009e0 R E 0x1000
  LOAD           0x0009e0 0x000019e0 0x000019e0 0x000dc 0x000dc RW  0x1000
  DYNAMIC        0x000a2c 0x00001a2c 0x00001a2c 0x00090 0x00090 RW  0x4

 Section to Segment mapping:
  Segment Sections...
   00     .hash .dynsym .dynstr .rel.dyn .text .rodata 
   01     .data .got .dynamic 
   02     .dynamic 

Dynamic section at offset 0xa2c contains 13 entries:
  Tag        Type                         Name/Value
 0x00000001 (NEEDED)                     Shared library: [libc.so.6]
 0x00000001 (NEEDED)                     Shared library: [libm.so.6]
 0x00000004 (HASH)                       0x94
 0x00000005 (STRTAB)                     0x34c
 0x00000006 (SYMTAB)                     0x15c
 0x0000000a (STRSZ)                      289 (bytes)
 0x0000000b (SYMENT)                     16 (bytes)
 0x00000011 (REL)                        0x470
 0x00000012 (RELSZ)                      488 (bytes)
 0x00000013 (RELENT)                     8 (bytes)
 0x00000016 (TEXTREL)                    0x0
 0x6ffffffa (RELCOUNT)                   60
 0x00000000 (NULL)                       0x0

Relocation section '.rel.dyn' at offset 0x470 contains 61 entries:
 Offset     Info    Type            Sym.Value  Sym. Name
0000068f  00000008 R_386_RELATIVE   
0000069f  00000008 R_386_RELATIVE   
000006cb  00000008 R_386_RELATIVE   
000006db  00000008 R_386_RELATIVE   
000006f6  00000008 R_386_RELATIVE   
00000736  00000008 R_386_RELATIVE   
00000772  00000008 R_386_RELATIVE   
000007a7  00000008 R_386_RELATIVE   
000007b7  00000008 R_386_RELATIVE   
000007e3  00000008 R_386_RELATIVE   
000007f3  00000008 R_386_RELATIVE   
0000080e  00000008 R_386_RELATIVE   
0000084e  00000008 R_386_RELATIVE   
0000088a  00000008 R_386_RELATIVE   
000008a0  00000008 R_386_RELATIVE   
000008a4  00000008 R_386_RELATIVE   
000008a8  00000008 R_386_RELATIVE   
000008ac  00000008 R_386_RELATIVE   
000008b0  00000008 R_386_RELATIVE   
000008b4  00000008 R_386_RELATIVE   
000008c0  00000008 R_386_RELATIVE   
000008c4  00000008 R_386_RELATIVE   
000008c8  00000008 R_386_RELATIVE   
000008cc  00000008 R_386_RELATIVE   
000008d0  00000008 R_386_RELATIVE   
000008d4  00000008 R_386_RELATIVE   
000008e0  00000008 R_386_RELATIVE   
000008e4  00000008 R_386_RELATIVE   
000008e8  00000008 R_386_RELATIVE   
000008ec  00000008 R_386_RELATIVE   
000008f0  00000008 R_386_RELATIVE   
000008f4  00000008 R_386_RELATIVE   
00000900  00000008 R_386_RELATIVE   
00000904  00000008 R_386_RELATIVE   
00000908  00000008 R_386_RELATIVE   
0000090c  00000008 R_386_RELATIVE   
00000910  00000008 R_386_RELATIVE   
00000914  00000008 R_386_RELATIVE   
00000920  00000008 R_386_RELATIVE   
00000924  00000008 R_386_RELATIVE   
00000928  00000008 R_386_RELATIVE   
0000092c  00000008 R_386_RELATIVE   
00000930  00000008 R_386_RELATIVE   
00000934  00000008 R_386_RELATIVE   
00000940  00000008 R_386_RELATIVE   
00000944  00000008 R_386_RELATIVE   
00000948  00000008 R_386_RELATIVE   
0000094c  00000008 R_386_RELATIVE   
00000950  00000008 R_386_RELATIVE   
00000954  00000008 R_386_RELATIVE   
000019e0  00000008 R_386_RELATIVE   
000019e4  00000008 R_386_RELATIVE   
000019e8  00000008 R_386_RELATIVE   
000019ec  00000008 R_386_RELATIVE   
000019f0  00000008 R_386_RELATIVE   
000019f4  00000008 R_386_RELATIVE   
000019f8  00000008 R_386_RELATIVE   
000019fc  00000008 R_386_RELATIVE   
00001a00  00000008 R_386_RELATIVE   
00001a04  00000008 R_386_RELATIVE   
00000665  00000f01 R_386_32          000019e0   listOperators
No processor specific unwind information to decode

Symbol table '.dynsym' contains 31 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 00000094     0 SECTION LOCAL  DEFAULT    1 .hash
     2: 0000015c     0 SECTION LOCAL  DEFAULT    2 .dynsym
     3: 0000034c     0 SECTION LOCAL  DEFAULT    3 .dynstr
     4: 00000470     0 SECTION LOCAL  DEFAULT    4 .rel.dyn
     5: 00000658     0 SECTION LOCAL  DEFAULT    5 .text
     6: 000008a0     0 SECTION LOCAL  DEFAULT    6 .rodata
     7: 000019e0     0 SECTION LOCAL  DEFAULT    7 .data
     8: 00001a20     0 SECTION LOCAL  DEFAULT    8 .got
     9: 00001a2c     0 SECTION LOCAL  DEFAULT    9 .dynamic
    10: 00001abc     0 SECTION LOCAL  DEFAULT   10 .sbss
    11: 00001abc     0 SECTION LOCAL  DEFAULT   11 .bss
    12: 00000000     0 SECTION LOCAL  DEFAULT   12 .comment
    13: 00000000     0 SECTION LOCAL  DEFAULT   13 .note
    14: 000007fc    61 FUNC    GLOBAL DEFAULT    5 op_inv_rev
    15: 000019e0    40 OBJECT  GLOBAL DEFAULT    7 listOperators
    16: 00001a2c     0 OBJECT  GLOBAL DEFAULT  ABS _DYNAMIC
    17: 000007c0    59 FUNC    GLOBAL DEFAULT    5 op10_rev
    18: 00000658    19 FUNC    GLOBAL DEFAULT    5 getListOperator
    19: 0000083c    57 FUNC    GLOBAL DEFAULT    5 op_inv2_rev
    20: 000006e4    61 FUNC    GLOBAL DEFAULT    5 op_inv
    21: 00000784    59 FUNC    GLOBAL DEFAULT    5 op3_rev
    22: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS __bss_start
    23: 00000724    57 FUNC    GLOBAL DEFAULT    5 op_inv2
    24: 00000760    35 FUNC    GLOBAL DEFAULT    5 op_refresh
    25: 000006a8    59 FUNC    GLOBAL DEFAULT    5 op10
    26: 0000066c    59 FUNC    GLOBAL DEFAULT    5 op3
    27: 00000878    35 FUNC    GLOBAL DEFAULT    5 op_refresh_rev
    28: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS _edata
    29: 00001a20     0 OBJECT  GLOBAL DEFAULT  ABS _GLOBAL_OFFSET_TABLE_
    30: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS _end

Symbol table '.symtab' contains 36 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 00000094     0 SECTION LOCAL  DEFAULT    1 .hash
     2: 0000015c     0 SECTION LOCAL  DEFAULT    2 .dynsym
     3: 0000034c     0 SECTION LOCAL  DEFAULT    3 .dynstr
     4: 00000470     0 SECTION LOCAL  DEFAULT    4 .rel.dyn
     5: 00000658     0 SECTION LOCAL  DEFAULT    5 .text
     6: 000008a0     0 SECTION LOCAL  DEFAULT    6 .rodata
     7: 000019e0     0 SECTION LOCAL  DEFAULT    7 .data
     8: 00001a20     0 SECTION LOCAL  DEFAULT    8 .got
     9: 00001a2c     0 SECTION LOCAL  DEFAULT    9 .dynamic
    10: 00001abc     0 SECTION LOCAL  DEFAULT   10 .sbss
    11: 00001abc     0 SECTION LOCAL  DEFAULT   11 .bss
    12: 00000000     0 SECTION LOCAL  DEFAULT   12 .comment
    13: 00000000     0 SECTION LOCAL  DEFAULT   13 .note
    14: 00000000     0 SECTION LOCAL  DEFAULT   14 .shstrtab
    15: 00000000     0 SECTION LOCAL  DEFAULT   15 .symtab
    16: 00000000     0 SECTION LOCAL  DEFAULT   16 .strtab
    17: 00000000     0 FILE    LOCAL  DEFAULT  ABS operator.c
    18: 00000658     0 NOTYPE  LOCAL  DEFAULT    5 gcc2_compiled.
    19: 000007fc    61 FUNC    GLOBAL DEFAULT    5 op_inv_rev
    20: 000019e0    40 OBJECT  GLOBAL DEFAULT    7 listOperators
    21: 00001a2c     0 OBJECT  GLOBAL DEFAULT  ABS _DYNAMIC
    22: 000007c0    59 FUNC    GLOBAL DEFAULT    5 op10_rev
    23: 00000658    19 FUNC    GLOBAL DEFAULT    5 getListOperator
    24: 0000083c    57 FUNC    GLOBAL DEFAULT    5 op_inv2_rev
    25: 000006e4    61 FUNC    GLOBAL DEFAULT    5 op_inv
    26: 00000784    59 FUNC    GLOBAL DEFAULT    5 op3_rev
    27: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS __bss_start
    28: 00000724    57 FUNC    GLOBAL DEFAULT    5 op_inv2
    29: 00000760    35 FUNC    GLOBAL DEFAULT    5 op_refresh
    30: 000006a8    59 FUNC    GLOBAL DEFAULT    5 op10
    31: 0000066c    59 FUNC    GLOBAL DEFAULT    5 op3
    32: 00000878    35 FUNC    GLOBAL DEFAULT    5 op_refresh_rev
    33: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS _edata
    34: 00001a20     0 OBJECT  GLOBAL DEFAULT  ABS _GLOBAL_OFFSET_TABLE_
    35: 00001abc     0 OBJECT  GLOBAL DEFAULT  ABS _end

Histogram for bucket list length (total of 17 buckets):
 Length  Number     % of total  Coverage
      0  7          ( 41.2%)
      1  4          ( 23.5%)     23.5%
      2  5          ( 29.4%)     82.4%
      3  1          (  5.9%)    100.0%

No version information found in this file.

Displaying notes found in: .note
  Owner                Data size    Description
  01.01                0x00000000   NT_VERSION (version)

我减少了一些冗长的内容以patchelf --remove-rpath消除不必要的搜索,但两台机器上都没有变化。

dynamic-linking
  • 1 1 个回答
  • 297 Views

1 个回答

  • Voted
  1. Best Answer
    Stephen Kitt
    2025-03-14T23:16:58+08:002025-03-14T23:16:58+08:00

    这确实是 glibc 的改变:在3 月 13 日迁移到 Debian 13 的2.41 版本(替代 2.40 版本)中,如果堆栈尚未执行,则不再允许加载需要可执行堆栈的库:dlopen

    如果共享库需要堆栈,dlopen 和 dlmopen 不再使堆栈可执行,无论是由于缺少 GNU_STACK ELF 标头(并且默认 ABI 权限设置了可执行位)还是由于 GNU_STACK 中的可执行位而明确要求,并且堆栈尚未可执行。相反,加载此类对象将失败。

    这会显示在您的输出中:

    无法启用可执行堆栈,因为共享对象需要:参数无效

    显然有一个工具可以清除相关标志,并且 Debian 软件包在快照中仍然可用。如果库实际上不需要可执行堆栈,但似乎只是通过省略来请求一个,那么应该可以解决问题。

    • 10

相关问题

  • 只要版本相同,共享库 ABI 是否兼容?

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