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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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3b1307e1cd
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: David S. Miller <davem@davemloft.net> Cc: Andreas Larsson <andreas@gaisler.com> Cc: sparclinux@vger.kernel.org Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Andreas Larsson <andreas@gaisler.com>
163 lines
4.1 KiB
C
163 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __SPARC_PTRACE_H
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#define __SPARC_PTRACE_H
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#include <uapi/asm/ptrace.h>
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#if defined(__sparc__) && defined(__arch64__)
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#ifndef __ASSEMBLER__
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#include <linux/compiler.h>
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#include <linux/threads.h>
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#include <asm/switch_to.h>
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static inline int pt_regs_trap_type(struct pt_regs *regs)
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{
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return regs->magic & 0x1ff;
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}
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static inline bool pt_regs_is_syscall(struct pt_regs *regs)
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{
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return (regs->tstate & TSTATE_SYSCALL);
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}
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static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
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{
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return (regs->tstate &= ~TSTATE_SYSCALL);
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}
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#define arch_ptrace_stop_needed() \
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({ flush_user_windows(); \
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get_thread_wsaved() != 0; \
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})
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#define arch_ptrace_stop() \
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synchronize_user_stack()
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#define current_pt_regs() \
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((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
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struct global_reg_snapshot {
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unsigned long tstate;
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unsigned long tpc;
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unsigned long tnpc;
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unsigned long o7;
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unsigned long i7;
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unsigned long rpc;
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struct thread_info *thread;
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unsigned long pad1;
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};
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struct global_pmu_snapshot {
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unsigned long pcr[4];
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unsigned long pic[4];
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};
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union global_cpu_snapshot {
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struct global_reg_snapshot reg;
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struct global_pmu_snapshot pmu;
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};
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extern union global_cpu_snapshot global_cpu_snapshot[NR_CPUS];
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#define force_successful_syscall_return() set_thread_noerror(1)
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#define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV))
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#define instruction_pointer(regs) ((regs)->tpc)
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#define instruction_pointer_set(regs, val) do { \
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(regs)->tpc = (val); \
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(regs)->tnpc = (val)+4; \
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} while (0)
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#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
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static inline int is_syscall_success(struct pt_regs *regs)
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{
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return !(regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY));
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}
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static inline long regs_return_value(struct pt_regs *regs)
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{
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return regs->u_regs[UREG_I0];
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}
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#ifdef CONFIG_SMP
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unsigned long profile_pc(struct pt_regs *);
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#else
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#define profile_pc(regs) instruction_pointer(regs)
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#endif
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#define MAX_REG_OFFSET (offsetof(struct pt_regs, magic))
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int regs_query_register_offset(const char *name);
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unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n);
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/**
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* regs_get_register() - get register value from its offset
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* @regs: pt_regs from which register value is gotten
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* @offset: offset number of the register.
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*
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* regs_get_register returns the value of a register whose
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* offset from @regs. The @offset is the offset of the register
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* in struct pt_regs. If @offset is bigger than MAX_REG_OFFSET,
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* this returns 0.
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*/
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static inline unsigned long regs_get_register(struct pt_regs *regs,
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unsigned long offset)
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{
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if (unlikely(offset >= MAX_REG_OFFSET))
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return 0;
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if (offset == PT_V9_Y)
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return *(unsigned int *)((unsigned long)regs + offset);
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return *(unsigned long *)((unsigned long)regs + offset);
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}
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/* Valid only for Kernel mode traps. */
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static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
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{
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return regs->u_regs[UREG_I6];
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}
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#else /* __ASSEMBLER__ */
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#endif /* __ASSEMBLER__ */
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#else /* (defined(__sparc__) && defined(__arch64__)) */
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#ifndef __ASSEMBLER__
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#include <asm/switch_to.h>
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static inline bool pt_regs_is_syscall(struct pt_regs *regs)
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{
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return (regs->psr & PSR_SYSCALL);
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}
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static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
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{
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return (regs->psr &= ~PSR_SYSCALL);
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}
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#define arch_ptrace_stop_needed() \
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({ flush_user_windows(); \
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current_thread_info()->w_saved != 0; \
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})
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#define arch_ptrace_stop() \
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synchronize_user_stack()
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#define current_pt_regs() \
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((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
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#define user_mode(regs) (!((regs)->psr & PSR_PS))
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#define instruction_pointer(regs) ((regs)->pc)
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#define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP])
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unsigned long profile_pc(struct pt_regs *);
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#else /* (!__ASSEMBLER__) */
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#endif /* (!__ASSEMBLER__) */
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#endif /* (defined(__sparc__) && defined(__arch64__)) */
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#define STACK_BIAS 2047
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/* global_reg_snapshot offsets */
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#define GR_SNAP_TSTATE 0x00
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#define GR_SNAP_TPC 0x08
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#define GR_SNAP_TNPC 0x10
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#define GR_SNAP_O7 0x18
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#define GR_SNAP_I7 0x20
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#define GR_SNAP_RPC 0x28
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#define GR_SNAP_THREAD 0x30
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#define GR_SNAP_PAD1 0x38
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#endif /* !(__SPARC_PTRACE_H) */
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