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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2018-03-27 21:23:52 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2018-03-27 21:28:58 -0300
commitd39c0a459ef32a41daac4840859bf304d931adab (patch)
treec6e589a49857e4ba6ebe985a0a543802d55e1e4a /ChangeLog
parentcc8a1620eb97ccddd337d157263c13c57b39ab71 (diff)
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sparc: Fix arch_fork definition
This patch fixes 3dc214977 for sparc.  Different than other architectures
SPARC kernel Kconfig does not define CONFIG_CLONE_BACKWARDS, however it
has the same ABI as if it did, implemented by sparc-specific code
(sparc_do_fork).

It also has a unique return value convention for clone:

   Parent -->  %o0 == child's  pid, %o1 == 0
   Child  -->  %o0 == parent's pid, %o1 == 1

Which required a special macro to correct issue the syscall
(INLINE_CLONE_SYSCALL).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/unix/sysv/linux/arch-fork.h [__ASSUME_CLONE_BACKWARDS]
	(arch_fork): Issue INLINE_CLONE_SYSCALL if defined.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_CLONE_BACKWARDS): Define.
Diffstat (limited to 'ChangeLog')
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diff --git a/ChangeLog b/ChangeLog
index 7f2044dee5..6412367632 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2018-03-27  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+	* sysdeps/unix/sysv/linux/arch-fork.h [__ASSUME_CLONE_BACKWARDS]
+	(arch_fork): Issue INLINE_CLONE_SYSCALL if defined.
+	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
+	(__ASSUME_CLONE_BACKWARDS): Define.
+
 2018-03-27  Jesse Hathaway  <jesse@mbuki-mvuki.org>
 
 	* sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Return