diff options
Diffstat (limited to 'sys/amd64/amd64/ptrace_machdep.c')
| -rw-r--r-- | sys/amd64/amd64/ptrace_machdep.c | 58 |
1 files changed, 45 insertions, 13 deletions
diff --git a/sys/amd64/amd64/ptrace_machdep.c b/sys/amd64/amd64/ptrace_machdep.c index 9fa1917..c96fe26 100644 --- a/sys/amd64/amd64/ptrace_machdep.c +++ b/sys/amd64/amd64/ptrace_machdep.c @@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$"); static int cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) { + struct ptrace_xstate_info info; char *savefpu; int error; @@ -49,14 +50,14 @@ cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) return (EOPNOTSUPP); switch (req) { - case PT_GETXSTATE: + case PT_GETXSTATE_OLD: fpugetregs(td); savefpu = (char *)(get_pcb_user_save_td(td) + 1); error = copyout(savefpu, addr, cpu_max_ext_state_size - sizeof(struct savefpu)); break; - case PT_SETXSTATE: + case PT_SETXSTATE_OLD: if (data > cpu_max_ext_state_size - sizeof(struct savefpu)) { error = EINVAL; break; @@ -70,6 +71,36 @@ cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) free(savefpu, M_TEMP); break; + case PT_GETXSTATE_INFO: + if (data != sizeof(info)) { + error = EINVAL; + break; + } + info.xsave_len = cpu_max_ext_state_size; + info.xsave_mask = xsave_mask; + error = copyout(&info, addr, data); + break; + + case PT_GETXSTATE: + fpugetregs(td); + savefpu = (char *)(get_pcb_user_save_td(td)); + error = copyout(savefpu, addr, cpu_max_ext_state_size); + break; + + case PT_SETXSTATE: + if (data > cpu_max_ext_state_size) { + error = EINVAL; + break; + } + savefpu = malloc(data, M_TEMP, M_WAITOK); + error = copyin(addr, savefpu, data); + if (error == 0) + error = fpusetregs(td, (struct savefpu *)savefpu, + savefpu + sizeof(struct savefpu), data - + sizeof(struct savefpu)); + free(savefpu, M_TEMP); + break; + default: error = EINVAL; break; @@ -81,8 +112,6 @@ cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data) #ifdef COMPAT_FREEBSD32 #define PT_I386_GETXMMREGS (PT_FIRSTMACH + 0) #define PT_I386_SETXMMREGS (PT_FIRSTMACH + 1) -#define PT_I386_GETXSTATE (PT_FIRSTMACH + 2) -#define PT_I386_SETXSTATE (PT_FIRSTMACH + 3) static int cpu32_ptrace(struct thread *td, int req, void *addr, int data) @@ -104,12 +133,12 @@ cpu32_ptrace(struct thread *td, int req, void *addr, int data) fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask; break; - case PT_I386_GETXSTATE: - error = cpu_ptrace_xstate(td, PT_GETXSTATE, addr, data); - break; - - case PT_I386_SETXSTATE: - error = cpu_ptrace_xstate(td, PT_SETXSTATE, addr, data); + case PT_GETXSTATE_OLD: + case PT_SETXSTATE_OLD: + case PT_GETXSTATE_INFO: + case PT_GETXSTATE: + case PT_SETXSTATE: + error = cpu_ptrace_xstate(td, req, addr, data); break; default: @@ -131,13 +160,16 @@ cpu_ptrace(struct thread *td, int req, void *addr, int data) return (cpu32_ptrace(td, req, addr, data)); #endif - /* Support old values of PT_GETXSTATE and PT_SETXSTATE. */ + /* Support old values of PT_GETXSTATE_OLD and PT_SETXSTATE_OLD. */ if (req == PT_FIRSTMACH + 0) - req = PT_GETXSTATE; + req = PT_GETXSTATE_OLD; if (req == PT_FIRSTMACH + 1) - req = PT_SETXSTATE; + req = PT_SETXSTATE_OLD; switch (req) { + case PT_GETXSTATE_OLD: + case PT_SETXSTATE_OLD: + case PT_GETXSTATE_INFO: case PT_GETXSTATE: case PT_SETXSTATE: error = cpu_ptrace_xstate(td, req, addr, data); |
