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authorAdhemerval Zanella <adhemerval.zanella@linaro.com>2015-09-21 15:55:58 -0700
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-01-03 18:38:09 -0200
commitd0d7f85f66a19c3110d550c3c24247f7b4f2c58a (patch)
tree1e5707d171b1c6ca7c911e37c78d3b7bbc341dce /ChangeLog
parent17cc27d5b7e74fe92db11caf989b941c1fd0d9f7 (diff)
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nptl: Fix testcases for new pthread cancellation mechanism
With upcoming fix for BZ#12683, pthread cancellation does not act for:

  1. If syscall is blocked but with some side effects already having
     taken place (e.g. a partial read or write).
  2. After the syscall has returned.

The main change is due the fact programs need to act in syscalls with
side-effects (for instance, to avoid leak of allocated resources or
handle partial read/write).

This patch changes the NPTL testcase that assumes the old behavior and
also changes the tst-backtrace{5,6} to ignore the cancellable wrappers.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,
powerpc-linux-gnu, sparcv9-linux-gnu, and sparc64-linux-gnu.

	* debug/tst-backtrace5.c (handle_signal): Avoid cancellable wrappers
	in backtrace analysis.
	* nptl/tst-cancel4.c (tf_write): Handle cancelled syscall with
	side-effects.
	(tf_send): Likewise.
Diffstat (limited to 'ChangeLog')
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diff --git a/ChangeLog b/ChangeLog
index b190eb8eac..b695780b0d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2019-01-03  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* debug/tst-backtrace5.c (handle_signal): Avoid cancellable wrappers
+	in backtrace analysis.
+	* nptl/tst-cancel4.c (tf_write): Handle cancelled syscall with
+	side-effects.
+	(tf_send): Likewise.
+
 	* io/creat.c (LIBC_CANCEL_HANDLED): Remove macro.
 	* io/ppoll.c (LIBC_CANCEL_HANDLED): Likewise.
 	* misc/pselect.c (LIBC_CANCEL_HANDLED): Likewise.