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x86-64: fix clone(2) argument order for x86 processes

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Without this patch, strace claims that parent_tidptr == tls, which is
clearly wrong.  It is expected that parent_tidptr == child_tidptr.

* process.c [X86_64] (ARG_CTID, ARG_TLS): Take current
personality into account.

Signed-off-by: Elliott Hughes <enh@google.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
This commit is contained in:
Elliott Hughes 2014-04-05 11:56:17 -07:00 committed by Dmitry V. Levin
parent 391c0d8cc5
commit b563325f0a
1 changed files with 8 additions and 2 deletions
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10
process.c
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@ -512,8 +512,14 @@ extern void print_ldt_entry();
# define ARG_PTID 2
# define ARG_CTID 3
# define ARG_TLS 4
#elif defined X86_64 || defined X32 || defined ALPHA || defined TILE \
|| defined OR1K
#elif defined X86_64
/* x86 personality processes have the last two arguments flipped. */
# define ARG_FLAGS 0
# define ARG_STACK 1
# define ARG_PTID 2
# define ARG_CTID ((current_personality != 1) ? 3 : 4)
# define ARG_TLS ((current_personality != 1) ? 4 : 3)
#elif defined X32 || defined ALPHA || defined TILE || defined OR1K
# define ARG_FLAGS 0
# define ARG_STACK 1
# define ARG_PTID 2