diff options
| author | Sven Schnelle <svens@linux.ibm.com> | 2021-10-01 14:42:08 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-10-26 16:21:28 +0300 |
| commit | c8f573eccb7398d7c198e547c630351e69af5ca1 (patch) | |
| tree | fc4e6ba830973162eecfc2f4967198cbef70d6c3 | |
| parent | ada1da31ce34248bc97ca8f801f2cf6efa378a81 (diff) | |
| download | linux-c8f573eccb7398d7c198e547c630351e69af5ca1.tar.xz | |
s390/ptrace: add last_break member to pt_regs
Instead of using args[0] for the value of the last breaking event
address register, add a member to make things more obvious.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/dumpstack.c | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/traps.c | 2 |
3 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 82fc11907451..4ffa8e7f0ed3 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -96,6 +96,7 @@ struct pt_regs { }; unsigned long flags; unsigned long cr1; + unsigned long last_break; }; /* diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index db1bc00229ca..85f326e258df 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -152,7 +152,7 @@ void show_stack(struct task_struct *task, unsigned long *stack, static void show_last_breaking_event(struct pt_regs *regs) { printk("Last Breaking-Event-Address:\n"); - printk(" [<%016lx>] %pSR\n", regs->args[0], (void *)regs->args[0]); + printk(" [<%016lx>] %pSR\n", regs->last_break, (void *)regs->last_break); } void show_registers(struct pt_regs *regs) diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index bcefc2173de4..d984f0b42604 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -314,7 +314,7 @@ void noinstr __do_pgm_check(struct pt_regs *regs) if (last_break < 4096) last_break = 1; current->thread.last_break = last_break; - regs->args[0] = last_break; + regs->last_break = last_break; } if (S390_lowcore.pgm_code & 0x0200) { |