diff options
Diffstat (limited to 'arch/x86/um/os-Linux')
-rw-r--r-- | arch/x86/um/os-Linux/registers.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/x86/um/os-Linux/registers.c b/arch/x86/um/os-Linux/registers.c index 28775f55bde2..3c423dfcd78b 100644 --- a/arch/x86/um/os-Linux/registers.c +++ b/arch/x86/um/os-Linux/registers.c @@ -5,6 +5,7 @@ */ #include <errno.h> +#include <stdlib.h> #include <sys/ptrace.h> #ifdef __i386__ #include <sys/user.h> @@ -31,7 +32,7 @@ int save_fp_registers(int pid, unsigned long *fp_regs) if (have_xstate_support) { iov.iov_base = fp_regs; - iov.iov_len = sizeof(struct _xstate); + iov.iov_len = FP_SIZE * sizeof(unsigned long); if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0) return -errno; return 0; @@ -51,10 +52,9 @@ int restore_fp_registers(int pid, unsigned long *fp_regs) { #ifdef PTRACE_SETREGSET struct iovec iov; - if (have_xstate_support) { iov.iov_base = fp_regs; - iov.iov_len = sizeof(struct _xstate); + iov.iov_len = FP_SIZE * sizeof(unsigned long); if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0) return -errno; return 0; @@ -125,13 +125,19 @@ int put_fp_registers(int pid, unsigned long *regs) void arch_init_registers(int pid) { #ifdef PTRACE_GETREGSET - struct _xstate fp_regs; + void * fp_regs; struct iovec iov; - iov.iov_base = &fp_regs; - iov.iov_len = sizeof(struct _xstate); + fp_regs = malloc(FP_SIZE * sizeof(unsigned long)); + if(fp_regs == NULL) + return; + + iov.iov_base = fp_regs; + iov.iov_len = FP_SIZE * sizeof(unsigned long); if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0) have_xstate_support = 1; + + free(fp_regs); #endif } #endif |