diff options
| author | Stafford Horne <shorne@gmail.com> | 2023-04-14 09:27:51 +0200 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2023-04-26 16:08:06 +0200 |
| commit | 27267655c5313ba0f5a3caa9ad35d887d9a12574 (patch) | |
| tree | d72bb9628b509240ca045f77f9bfc98c4680cb0d /arch/openrisc/include | |
| parent | openrisc: Support storing and restoring fpu state (diff) | |
| download | linux-27267655c5313ba0f5a3caa9ad35d887d9a12574.tar.xz linux-27267655c5313ba0f5a3caa9ad35d887d9a12574.zip | |
openrisc: Support floating point user api
Add support for handling floating point exceptions and forwarding the
SIGFPE signal to processes. Also, add fpu state to sigcontext.
Signed-off-by: Stafford Horne <shorne@gmail.com>
Diffstat (limited to 'arch/openrisc/include')
| -rw-r--r-- | arch/openrisc/include/uapi/asm/elf.h | 3 | ||||
| -rw-r--r-- | arch/openrisc/include/uapi/asm/ptrace.h | 4 | ||||
| -rw-r--r-- | arch/openrisc/include/uapi/asm/sigcontext.h | 1 |
3 files changed, 6 insertions, 2 deletions
diff --git a/arch/openrisc/include/uapi/asm/elf.h b/arch/openrisc/include/uapi/asm/elf.h index e892d5061685..6868f81c281e 100644 --- a/arch/openrisc/include/uapi/asm/elf.h +++ b/arch/openrisc/include/uapi/asm/elf.h @@ -53,8 +53,7 @@ typedef unsigned long elf_greg_t; #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ -typedef unsigned long elf_fpregset_t; +typedef struct __or1k_fpu_state elf_fpregset_t; /* EM_OPENRISC is defined in linux/elf-em.h */ #define EM_OR32 0x8472 diff --git a/arch/openrisc/include/uapi/asm/ptrace.h b/arch/openrisc/include/uapi/asm/ptrace.h index d4fab268f6aa..a77cc9915ca8 100644 --- a/arch/openrisc/include/uapi/asm/ptrace.h +++ b/arch/openrisc/include/uapi/asm/ptrace.h @@ -30,6 +30,10 @@ struct user_regs_struct { unsigned long pc; unsigned long sr; }; + +struct __or1k_fpu_state { + unsigned long fpcsr; +}; #endif diff --git a/arch/openrisc/include/uapi/asm/sigcontext.h b/arch/openrisc/include/uapi/asm/sigcontext.h index 8ab775fc3450..ca585e4af6b8 100644 --- a/arch/openrisc/include/uapi/asm/sigcontext.h +++ b/arch/openrisc/include/uapi/asm/sigcontext.h @@ -28,6 +28,7 @@ struct sigcontext { struct user_regs_struct regs; /* needs to be first */ + struct __or1k_fpu_state fpu; unsigned long oldmask; }; |