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arm64: Do not forget syscall when starting a new thread.
[ Upstream commit de6921856f
]
Enable tracing of the execve*() system calls with the
syscalls:sys_exit_execve tracepoint by removing the call to
forget_syscall() when starting a new thread and preserving the value of
regs->syscallno across exec.
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
Link: https://lore.kernel.org/r/20220608162447.666494-2-flaniel@linux.microsoft.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
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1 changed files with 2 additions and 1 deletions
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@ -250,8 +250,9 @@ void tls_preserve_current_state(void);
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static inline void start_thread_common(struct pt_regs *regs, unsigned long pc)
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{
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s32 previous_syscall = regs->syscallno;
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memset(regs, 0, sizeof(*regs));
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forget_syscall(regs);
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regs->syscallno = previous_syscall;
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regs->pc = pc;
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if (system_uses_irq_prio_masking())
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