Merge bitcoin/bitcoin#22244: devtools: Correctly extract symbol versions in symbol-check

e8cd3700eeb27437f5ea435869c9d61214285fdd devtools: Integrate ARCH_MIN_GLIBC_VER table into MAX_VERSIONS in symbol-check.py (W. J. van der Laan)
a33381acf5ae2b43616fffaf26b1c8962e8ef0bb devtools: Add xkb version to symbol-check (W. J. van der Laan)
19e598bab0a1cb5ad93321eb9fa25d1a58d5e276 devtools: Fix verneed section parsing in pixie (W. J. van der Laan)

Pull request description:

  I misunderstood the ELF specification for version symbols (verneed): The `vn_aux` pointer is relative to the main verneed record, not the start of the section.

  This caused many symbols to not be versioned properly in the return value of `elf.dyn_symbols`. This was discovered in #21454.

  Fix it by correcting the offset computation.

  - xkb versions symbols (using the prefix `V`), as this library is used by bitcoin-qt, add it to the valid versions in `symbol-check.py`

  This unfortunately brings to light some symbols that have been introduced since and weren't caught (from a gitian compile of master):

  ```
  bitcoin-cli: symbol getrandom from unsupported version GLIBC_2.25
  bitcoin-cli: failed IMPORTED_SYMBOLS
  bitcoind: symbol getrandom from unsupported version GLIBC_2.25
  bitcoind: symbol log from unsupported version GLIBC_2.29
  bitcoind: symbol fcntl64 from unsupported version GLIBC_2.28
  bitcoind: symbol pow from unsupported version GLIBC_2.29
  bitcoind: symbol exp from unsupported version GLIBC_2.29
  bitcoind: failed IMPORTED_SYMBOLS
  bitcoin-qt: symbol exp from unsupported version GLIBC_2.29
  bitcoin-qt: symbol fcntl64 from unsupported version GLIBC_2.28
  bitcoin-qt: symbol log from unsupported version GLIBC_2.29
  bitcoin-qt: symbol pow from unsupported version GLIBC_2.29
  bitcoin-qt: symbol statx from unsupported version GLIBC_2.28
  bitcoin-qt: symbol getrandom from unsupported version GLIBC_2.25
  bitcoin-qt: symbol renameat2 from unsupported version GLIBC_2.28
  bitcoin-qt: symbol getentropy from unsupported version GLIBC_2.25
  bitcoin-qt: failed IMPORTED_SYMBOLS
  bitcoin-wallet: symbol exp from unsupported version GLIBC_2.29
  bitcoin-wallet: symbol log from unsupported version GLIBC_2.29
  bitcoin-wallet: symbol fcntl64 from unsupported version GLIBC_2.28
  bitcoin-wallet: failed IMPORTED_SYMBOLS
  test_bitcoin: symbol getrandom from unsupported version GLIBC_2.25
  test_bitcoin: symbol log from unsupported version GLIBC_2.29
  test_bitcoin: symbol fcntl64 from unsupported version GLIBC_2.28
  test_bitcoin: symbol pow from unsupported version GLIBC_2.29
  test_bitcoin: symbol exp from unsupported version GLIBC_2.29
  test_bitcoin: failed IMPORTED_SYMBOLS
  ```

ACKs for top commit:
  hebasto:
    ACK e8cd3700eeb27437f5ea435869c9d61214285fdd

Tree-SHA512: 8c15e3478eb642f01a1ddaadef03f80583f088f9fa8e3bf171ce16b0ec05ffb4675ec147d7ffc6a4360637ed47fca517c6ca2bac7bb30d794c03783cfb964b79

0 files changed, 0 insertions, 0 deletions