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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2020-06-14 12:56:54 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2020-06-14 15:53:04 +0000
commita50efac19a1eb0a9dc6f5917ae299c0fbbf3c46b (patch)
tree975cff922cf658c87dfc70e3b4fb490fdca8519b /htl/Versions
parente2b9d562d1e024fda6d10f0f272521bf20fa664f (diff)
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htl: Move cleanup stack to variable shared between libc and pthread
If libpthread gets loaded dynamically, the stack needs to already contain the
cleanup handlers of the main thread.

* htl/libc_pthread_init.c (__pthread_cleanup_stack): New per-thread variable.
* htl/Versions (libc): Add __pthread_cleanup_stack as private symbol.
* htl/pt-internal.h (struct __pthread): Remove cancelation_handlers
field.
(__pthread_cleanup_stack): Add variable declaration.
* htl/pt-alloc.c (initialize_pthread): Remove initialization of
cancelation_handlers field.
* htl/pt-cleanup.c (__pthread_get_cleanup_stack): Return the address of
__pthread_cleanup_stack instead of that of the cancelation_handlers
field.
* htl/forward.c: Include <pt-internal.h>.
(dummy_list): Remove variable.
(__pthread_get_cleanup_stack): Return the address of __pthread_cleanup_stack
instead of that of dummy_list.
Diffstat (limited to 'htl/Versions')
-rw-r--r--htl/Versions1
1 files changed, 1 insertions, 0 deletions
diff --git a/htl/Versions b/htl/Versions
index fd9eefbaee..832cc5d814 100644
--- a/htl/Versions
+++ b/htl/Versions
@@ -29,6 +29,7 @@ libc {
   GLIBC_PRIVATE {
     __libc_alloca_cutoff;
     __libc_pthread_init;
+    __pthread_cleanup_stack;
   }
 }