glibc/tst-ro-dynamic-mod.map at 716c4027b04db785034b0f67ac552cfaff360463 - glibc - Gitea: Git with a cup of tea

AuroraMiddleware/glibc

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H.J. Lu b413280cfb ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340 ]

We can't relocate entries in dynamic section if it is readonly:

1. Add a l_ld_readonly field to struct link_map to indicate if dynamic
section is readonly and set it based on p_flags of PT_DYNAMIC segment.
2. Replace DL_RO_DYN_SECTION with dl_relocate_ld to decide if dynamic
section should be relocated.
3. Remove DL_RO_DYN_TEMP_CNT.
4. Don't use a static dynamic section to make readonly dynamic section
in vDSO writable.
5. Remove the temp argument from elf_get_dynamic_info.

This fixes BZ #28340.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

2021-09-22 11:12:43 -07:00

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 SECTIONS
 {
  . = SIZEOF_HEADERS;
  .dynamic : { *(.dynamic) } :text :dynamic
  .rodata : { *(.data*) *(.bss*) } :text
  /DISCARD/ : {
   *(.note.gnu.property)
  }
  .note : { *(.note.*) } :text :note
 }
 PHDRS
 {
  text PT_LOAD FLAGS(5) FILEHDR PHDRS;
  dynamic PT_DYNAMIC FLAGS(4);
  note PT_NOTE FLAGS(4);
 }