AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-01 01:00:10 +00:00
Code Issues Packages Projects Releases Wiki Activity
f87cc2bfba
glibc/sysdeps/unix/sysv/linux/i386/localplt.data

19 lines
830 B
Plaintext
Raw Normal View History

Extend local PLT reference check On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with R_*_GLOB_DAT relocation against the same symbol. This patch extends local PLT reference check to support alternate relocations. [BZ #18078] * scripts/check-localplt.awk: Support alternate relocations. * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL sections. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and malloc entries with + REL R_386_GLOB_DAT. * sysdeps/x86_64/localplt.data: New file.
2015-07-29 18:57:54 +00:00
# Linker in binutils 2.26 and newer consolidates R_X86_64_JUMP_SLOT
# relocation with R_386_GLOB_DAT relocation against the same symbol.
Support PLT and GOT references in local PIC check Linker in binutils 2.26 and newer generate GOT references instead PLT references when -z now is passed to linker. We need to extend scripts/localplt.awk to allow PLT or GOT references. [BZ #19007] * scripts/localplt.awk: Also allow GOT references. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark _Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign with "+ REL R_386_GLOB_DAT". * sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
2015-10-14 12:59:50 +00:00
libc.so: _Unwind_Find_FDE + REL R_386_GLOB_DAT
libc.so: calloc + REL R_386_GLOB_DAT
Extend local PLT reference check On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with R_*_GLOB_DAT relocation against the same symbol. This patch extends local PLT reference check to support alternate relocations. [BZ #18078] * scripts/check-localplt.awk: Support alternate relocations. * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL sections. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and malloc entries with + REL R_386_GLOB_DAT. * sysdeps/x86_64/localplt.data: New file.
2015-07-29 18:57:54 +00:00
libc.so: free + REL R_386_GLOB_DAT
libc.so: malloc + REL R_386_GLOB_DAT
Support PLT and GOT references in local PIC check Linker in binutils 2.26 and newer generate GOT references instead PLT references when -z now is passed to linker. We need to extend scripts/localplt.awk to allow PLT or GOT references. [BZ #19007] * scripts/localplt.awk: Also allow GOT references. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark _Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign with "+ REL R_386_GLOB_DAT". * sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
2015-10-14 12:59:50 +00:00
libc.so: memalign + REL R_386_GLOB_DAT
libc.so: realloc + REL R_386_GLOB_DAT
Document and fix --enable-bind-now [BZ #21015]
2017-03-02 13:44:28 +00:00
libm.so: matherr + REL R_386_GLOB_DAT
ld.so: Remove __libc_memalign It is no longer needed since commit 6c444ad6e953dbdf9c7be065308a0a777 (elf: Do not use memalign for TCB/TLS blocks allocation [BZ #17730]). Applications do not link against ld.so and will use the definition in libc.so, so there is no ABI impact.
2016-11-30 15:23:58 +00:00
# The main malloc is interposed into the dynamic linker, for
# allocations after the initial link (when dlopen is used).
Support PLT and GOT references in local PIC check Linker in binutils 2.26 and newer generate GOT references instead PLT references when -z now is passed to linker. We need to extend scripts/localplt.awk to allow PLT or GOT references. [BZ #19007] * scripts/localplt.awk: Also allow GOT references. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark _Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign with "+ REL R_386_GLOB_DAT". * sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
2015-10-14 12:59:50 +00:00
ld.so: malloc + REL R_386_GLOB_DAT
ld.so: calloc + REL R_386_GLOB_DAT
ld.so: realloc + REL R_386_GLOB_DAT
Extend local PLT reference check On x86, linker in binutils 2.26 and newer consolidates R_*_JUMP_SLOT with R_*_GLOB_DAT relocation against the same symbol. This patch extends local PLT reference check to support alternate relocations. [BZ #18078] * scripts/check-localplt.awk: Support alternate relocations. * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL sections. * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and malloc entries with + REL R_386_GLOB_DAT. * sysdeps/x86_64/localplt.data: New file.
2015-07-29 18:57:54 +00:00
ld.so: free + REL R_386_GLOB_DAT
Implement _dl_catch_error, _dl_signal_error in libc.so [BZ #16628] This change moves the main implementation of _dl_catch_error, _dl_signal_error to libc.so, where TLS variables can be used directly. This removes a writable function pointer from the rtld_global variable. For use during initial relocation, minimal implementations of these functions are provided in ld.so. These are eventually interposed by the libc.so implementations. This is implemented by compiling elf/dl-error-skeleton.c twice, via elf/dl-error.c and elf/dl-error-minimal.c. As a side effect of this change, the static version of dl-error.c no longer includes support for the _dl_signal_cerror/_dl_receive_error mechanism because it is only used in ld.so.
2016-11-30 14:59:57 +00:00
# The TLS-enabled version of these functions is interposed from libc.so.
ld.so: _dl_signal_error + REL R_386_GLOB_DAT
ld.so: _dl_catch_error + REL R_386_GLOB_DAT
Reference in New Issue Copy Permalink