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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-08-02 13:52:36 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-10-06 09:02:21 -0700 |
| commit | 3234a31b489707f19ec6d4c9909af06f20ddb901 (patch) | |
| tree | 86b3e527cabd50fcf24644b07b225ea7d9b2d796 | |
| parent | 47252e4336d6d46e33fe8abe0c5b1d0f48c1db48 (diff) | |
| download | glibc-3234a31b489707f19ec6d4c9909af06f20ddb901.tar.gz glibc-3234a31b489707f19ec6d4c9909af06f20ddb901.tar.xz glibc-3234a31b489707f19ec6d4c9909af06f20ddb901.zip | |
ld.so: Don't fill the DT_DEBUG entry in ld.so [BZ #28129]
Linker creates the DT_DEBUG entry only in executables. Don't fill the non-existent DT_DEBUG entry in ld.so with the run-time address of the r_debug structure. This fixes BZ #28129.
| -rw-r--r-- | elf/rtld.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index 9642eb9c92..628245d8cd 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -1761,17 +1761,11 @@ dl_main (const ElfW(Phdr) *phdr, #ifdef ELF_MACHINE_DEBUG_SETUP /* Some machines (e.g. MIPS) don't use DT_DEBUG in this way. */ ELF_MACHINE_DEBUG_SETUP (main_map, r); - ELF_MACHINE_DEBUG_SETUP (&GL(dl_rtld_map), r); #else if (main_map->l_info[DT_DEBUG] != NULL) /* There is a DT_DEBUG entry in the dynamic section. Fill it in with the run-time address of the r_debug structure */ main_map->l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r; - - /* Fill in the pointer in the dynamic linker's own dynamic section, in - case you run gdb on the dynamic linker directly. */ - if (GL(dl_rtld_map).l_info[DT_DEBUG] != NULL) - GL(dl_rtld_map).l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r; #endif /* We start adding objects. */ |