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| author | Florian Weimer <fweimer@redhat.com> | 2020-07-16 17:55:35 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-07-16 17:55:35 +0200 |
| commit | efedd1ed3d211941fc66d14ba245be3552b2616a (patch) | |
| tree | 67e2e7d222933fa2f442ff92019d4ba85eee23a2 /csu | |
| parent | da7d62b50396c8b6d67c1ba800a196e83e2ec469 (diff) | |
| download | glibc-efedd1ed3d211941fc66d14ba245be3552b2616a.tar.gz glibc-efedd1ed3d211941fc66d14ba245be3552b2616a.tar.xz glibc-efedd1ed3d211941fc66d14ba245be3552b2616a.zip | |
Linux: Remove rseq support
The kernel ABI is not finalized, and there are now various proposals
to change the size of struct rseq, which would make the glibc ABI
dependent on the version of the kernels used for building glibc.
This is of course not acceptable.
This reverts commit 48699da1c468543ade14777819bd1b4d652709de ("elf:
Support at least 32-byte alignment in static dlopen"), commit
8f4632deb3545b2949cec5454afc3cb21a0024ea ("Linux: rseq registration
tests"), commit 6e29cb3f61ff5432c78a1c84b0d9b123a350ab36 ("Linux: Use
rseq in sched_getcpu if available"), and commit
0c76fc3c2b346dc5401dc055d97d4279632b0fb3 ("Linux: Perform rseq
registration at C startup and thread creation"), resolving the conflicts
introduced by the ARC port and the TLS static surplus changes.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'csu')
| -rw-r--r-- | csu/libc-tls.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/csu/libc-tls.c b/csu/libc-tls.c index 3f1655f264..06e76bd395 100644 --- a/csu/libc-tls.c +++ b/csu/libc-tls.c @@ -112,12 +112,6 @@ __libc_setup_tls (void) size_t tcb_offset; const ElfW(Phdr) *phdr; - /* libc.so with rseq has TLS with 32-byte alignment. Static dlopen - requires at least 32-byte alignment as well, otherwise loading - libc.so will always fail. */ - if (max_align < 32) - max_align = 32; - struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded; /* Look through the TLS segment if there is any. */ |