diff options
| author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 01:27:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:07 -0700 |
| commit | 058ac308f3dd34ce4e2dbf938258975ced14b809 (patch) | |
| tree | 86576cc43740bb45680fc990b445dacd08cfae76 | |
| parent | e8012b584fac3a1bb70cd896612c12086d28e9ff (diff) | |
| download | op-kernel-dev-058ac308f3dd34ce4e2dbf938258975ced14b809.zip op-kernel-dev-058ac308f3dd34ce4e2dbf938258975ced14b809.tar.gz | |
uml: coredumping floating point fixes
Fix core dumping of floating point state. ELF_CORE_COPY_FPREGS gets a
definitions, and as a result, dump_fpu no longer needs to exist. Also,
elf_fpregset_t needed a real definition.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/um/sys-i386/ptrace.c | 22 | ||||
| -rw-r--r-- | include/asm-um/elf-i386.h | 12 | ||||
| -rw-r--r-- | include/asm-um/elf-x86_64.h | 2 |
3 files changed, 12 insertions, 24 deletions
diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c index 659011d..9657c89 100644 --- a/arch/um/sys-i386/ptrace.c +++ b/arch/um/sys-i386/ptrace.c @@ -205,28 +205,6 @@ int set_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *child) return restore_fpx_registers(userspace_pid[cpu], fpregs); } -#ifdef notdef -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) -{ - fpu->cwd = (((SC_FP_CW(PT_REGS_SC(regs)) & 0xffff) << 16) | - (SC_FP_SW(PT_REGS_SC(regs)) & 0xffff)); - fpu->swd = SC_FP_CSSEL(PT_REGS_SC(regs)) & 0xffff; - fpu->twd = SC_FP_IPOFF(PT_REGS_SC(regs)); - fpu->fip = SC_FP_CSSEL(PT_REGS_SC(regs)) & 0xffff; - fpu->fcs = SC_FP_DATAOFF(PT_REGS_SC(regs)); - fpu->foo = SC_FP_DATASEL(PT_REGS_SC(regs)); - fpu->fos = 0; - memcpy(fpu->st_space, (void *) SC_FP_ST(PT_REGS_SC(regs)), - sizeof(fpu->st_space)); - return 1; -} -#endif - -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu ) -{ - return 1; -} - long subarch_ptrace(struct task_struct *child, long request, long addr, long data) { diff --git a/include/asm-um/elf-i386.h b/include/asm-um/elf-i386.h index 9bab712..ca94a13 100644 --- a/include/asm-um/elf-i386.h +++ b/include/asm-um/elf-i386.h @@ -5,7 +5,8 @@ #ifndef __UM_ELF_I386_H #define __UM_ELF_I386_H -#include <asm/user.h> +#include <linux/sched.h> +#include "skas.h" #define R_386_NONE 0 #define R_386_32 1 @@ -75,6 +76,15 @@ typedef struct user_i387_struct elf_fpregset_t; pr_reg[16] = PT_REGS_SS(regs); \ } while(0); +static inline int elf_core_copy_fpregs(struct task_struct *t, + elf_fpregset_t *fpu) +{ + int cpu = ((struct thread_info *) t->stack)->cpu; + return save_fp_registers(userspace_pid[cpu], (unsigned long *) fpu); +} + +#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu) + extern long elf_aux_hwcap; #define ELF_HWCAP (elf_aux_hwcap) diff --git a/include/asm-um/elf-x86_64.h b/include/asm-um/elf-x86_64.h index bfe27aa..97e1ced 100644 --- a/include/asm-um/elf-x86_64.h +++ b/include/asm-um/elf-x86_64.h @@ -36,7 +36,7 @@ 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]; -typedef struct { } elf_fpregset_t; +typedef struct user_i387_struct elf_fpregset_t; /* * This is used to ensure we don't load something for the wrong architecture. |
