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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2021-03-16 23:35:49 +0900 |
|---|---|---|
| committer | Masami Hiramatsu <mhiramat@kernel.org> | 2021-03-19 11:51:27 +0900 |
| commit | cdcac77b353402a1fbca66038032f33e5ecfc028 (patch) | |
| tree | fb6954524e38fa484ce1d2441ba5300d79ceb567 | |
| parent | 46f5e0547199fbd3be9ed16940be8322b3ea3b05 (diff) | |
| download | linux-cdcac77b353402a1fbca66038032f33e5ecfc028.tar.gz | |
ia64: Add instruction_pointer_set() API
Add instruction_pointer_set() API for ia64.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
| -rw-r--r-- | arch/ia64/include/asm/ptrace.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h index b3aa460901012..e382f1a6bff38 100644 --- a/arch/ia64/include/asm/ptrace.h +++ b/arch/ia64/include/asm/ptrace.h @@ -45,6 +45,7 @@ #include <asm/current.h> #include <asm/page.h> +# define ia64_psr(regs) ((struct ia64_psr *) &(regs)->cr_ipsr) /* * We use the ia64_psr(regs)->ri to determine which of the three * instructions in bundle (16 bytes) took the sample. Generate @@ -71,6 +72,12 @@ static inline long regs_return_value(struct pt_regs *regs) return -regs->r8; } +static inline void instruction_pointer_set(struct pt_regs *regs, unsigned long val) +{ + ia64_psr(regs)->ri = (val & 0xf); + regs->cr_iip = (val & ~0xfULL); +} + /* Conserve space in histogram by encoding slot bits in address * bits 2 and 3 rather than bits 0 and 1. */ @@ -87,7 +94,6 @@ static inline long regs_return_value(struct pt_regs *regs) /* given a pointer to a task_struct, return the user's pt_regs */ # define task_pt_regs(t) (((struct pt_regs *) ((char *) (t) + IA64_STK_OFFSET)) - 1) -# define ia64_psr(regs) ((struct ia64_psr *) &(regs)->cr_ipsr) # define user_mode(regs) (((struct ia64_psr *) &(regs)->cr_ipsr)->cpl != 0) # define user_stack(task,regs) ((long) regs - (long) task == IA64_STK_OFFSET - sizeof(*regs)) # define fsys_mode(task,regs) \ |