diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/Kconfig | 8 | ||||
| -rw-r--r-- | arch/sparc64/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/sparc64/kernel/binfmt_elf32.c | 134 | ||||
| -rw-r--r-- | arch/sparc64/kernel/ptrace.c | 266 | ||||
| -rw-r--r-- | arch/sparc64/kernel/systbls.S | 2 |
5 files changed, 110 insertions, 301 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 5023b815e522..b810f2b7526a 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -383,13 +383,7 @@ config COMPAT bool depends on SPARC32_COMPAT default y - -config BINFMT_ELF32 - bool "Kernel support for 32-bit ELF binaries" - depends on SPARC32_COMPAT - help - This allows you to run 32-bit Linux/ELF binaries on your Ultra. - Everybody wants this; say Y. + select COMPAT_BINFMT_ELF config BINFMT_AOUT32 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries" diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile index 4b78b24ef413..1bf5b187de49 100644 --- a/arch/sparc64/kernel/Makefile +++ b/arch/sparc64/kernel/Makefile @@ -21,7 +21,6 @@ obj-$(CONFIG_PCI) += ebus.o isa.o pci_common.o \ obj-$(CONFIG_PCI_MSI) += pci_msi.o obj-$(CONFIG_SMP) += smp.o trampoline.o hvtramp.o obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o -obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o obj-$(CONFIG_BINFMT_AOUT32) += binfmt_aout32.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c deleted file mode 100644 index a0718dc950f4..000000000000 --- a/arch/sparc64/kernel/binfmt_elf32.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * binfmt_elf32.c: Support 32-bit Sparc ELF binaries on Ultra. - * - * Copyright (C) 1995, 1996, 1997, 1998, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -#define ELF_ARCH EM_SPARC -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB; - -/* Format is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * PSR, PC, nPC, Y, WIM, TBR - */ -typedef unsigned int elf_greg_t; -#define ELF_NGREG 38 -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct { - union { - unsigned int pr_regs[32]; - unsigned long pr_dregs[16]; - } pr_fr; - unsigned int __unused; - unsigned int pr_fsr; - unsigned char pr_qcnt; - unsigned char pr_q_entrysize; - unsigned char pr_en; - unsigned int pr_q[64]; -} elf_fpregset_t; - -/* UltraSparc extensions. Still unused, but will be eventually. */ -typedef struct { - unsigned int pr_type; - unsigned int pr_align; - union { - struct { - union { - unsigned int pr_regs[32]; - unsigned long pr_dregs[16]; - long double pr_qregs[8]; - } pr_xfr; - } pr_v8p; - unsigned int pr_xfsr; - unsigned int pr_fprs; - unsigned int pr_xg[8]; - unsigned int pr_xo[8]; - unsigned long pr_tstate; - unsigned int pr_filler[8]; - } pr_un; -} elf_xregset_t; - -#define elf_check_arch(x) (((x)->e_machine == EM_SPARC) || ((x)->e_machine == EM_SPARC32PLUS)) - -#define ELF_ET_DYN_BASE 0x70000000 - - -#include <asm/processor.h> -#include <linux/module.h> -#include <linux/elfcore.h> -#include <linux/compat.h> - -#define elf_prstatus elf_prstatus32 -struct elf_prstatus32 -{ - struct elf_siginfo pr_info; /* Info associated with signal */ - short pr_cursig; /* Current signal */ - unsigned int pr_sigpend; /* Set of pending signals */ - unsigned int pr_sighold; /* Set of held signals */ - pid_t pr_pid; - pid_t pr_ppid; - pid_t pr_pgrp; - pid_t pr_sid; - struct compat_timeval pr_utime; /* User time */ - struct compat_timeval pr_stime; /* System time */ - struct compat_timeval pr_cutime; /* Cumulative user time */ - struct compat_timeval pr_cstime; /* Cumulative system time */ - elf_gregset_t pr_reg; /* GP registers */ - int pr_fpvalid; /* True if math co-processor being used. */ -}; - -#define elf_prpsinfo elf_prpsinfo32 -struct elf_prpsinfo32 -{ - char pr_state; /* numeric process state */ - char pr_sname; /* char for pr_state */ - char pr_zomb; /* zombie */ - char pr_nice; /* nice val */ - unsigned int pr_flag; /* flags */ - u16 pr_uid; - u16 pr_gid; - pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; - /* Lots missing */ - char pr_fname[16]; /* filename of executable */ - char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ -}; - -#include <linux/highuid.h> - -#undef NEW_TO_OLD_UID -#undef NEW_TO_OLD_GID -#define NEW_TO_OLD_UID(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid) -#define NEW_TO_OLD_GID(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid) - -#include <linux/time.h> - -#undef cputime_to_timeval -#define cputime_to_timeval cputime_to_compat_timeval -static inline void -cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value) -{ - unsigned long jiffies = cputime_to_jiffies(cputime); - value->tv_usec = (jiffies % HZ) * (1000000L / HZ); - value->tv_sec = jiffies / HZ; -} - -#undef start_thread -#define start_thread start_thread32 -#define init_elf_binfmt init_elf32_binfmt - -MODULE_DESCRIPTION("Binary format loader for compatibility with 32bit SparcLinux binaries on the Ultra"); -MODULE_AUTHOR("Eric Youngdale, David S. Miller, Jakub Jelinek"); - -#undef MODULE_DESCRIPTION -#undef MODULE_AUTHOR - -#undef TASK_SIZE -#define TASK_SIZE STACK_TOP32 - -#include "../../../fs/binfmt_elf.c" diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index 51f012410f9d..9a1ba1fe859d 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -684,72 +684,39 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *task) return &user_sparc64_view; } -long arch_ptrace(struct task_struct *child, long request, long addr, long data) +struct compat_fps { + unsigned int regs[32]; + unsigned int fsr; + unsigned int flags; + unsigned int extra; + unsigned int fpqd; + struct compat_fq { + unsigned int insnaddr; + unsigned int insn; + } fpq[16]; +}; + +long compat_arch_ptrace(struct task_struct *child, compat_long_t request, + compat_ulong_t caddr, compat_ulong_t cdata) { - long addr2 = task_pt_regs(current)->u_regs[UREG_I4]; - const struct user_regset_view *view; + const struct user_regset_view *view = task_user_regset_view(child); + compat_ulong_t caddr2 = task_pt_regs(current)->u_regs[UREG_I4]; + struct pt_regs32 __user *pregs; + struct compat_fps __user *fps; + unsigned long addr2 = caddr2; + unsigned long addr = caddr; + unsigned long data = cdata; int ret; - if (test_thread_flag(TIF_32BIT)) - addr2 &= 0xffffffffUL; + pregs = (struct pt_regs32 __user *) addr; + fps = (struct compat_fps __user *) addr; - view = task_user_regset_view(child); - - switch(request) { + switch (request) { case PTRACE_PEEKUSR: ret = (addr != 0) ? -EIO : 0; break; - case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp64; - unsigned int tmp32; - int copied; - - ret = -EIO; - if (test_thread_flag(TIF_32BIT)) { - copied = access_process_vm(child, addr, - &tmp32, sizeof(tmp32), 0); - if (copied == sizeof(tmp32)) - ret = put_user(tmp32, - (unsigned int __user *) data); - } else { - copied = access_process_vm(child, addr, - &tmp64, sizeof(tmp64), 0); - if (copied == sizeof(tmp64)) - ret = put_user(tmp64, - (unsigned long __user *) data); - } - break; - } - - case PTRACE_POKETEXT: /* write the word at location addr. */ - case PTRACE_POKEDATA: { - unsigned long tmp64; - unsigned int tmp32; - int copied; - - ret = -EIO; - if (test_thread_flag(TIF_32BIT)) { - tmp32 = data; - copied = access_process_vm(child, addr, - &tmp32, sizeof(tmp32), 1); - if (copied == sizeof(tmp32)) - ret = 0; - } else { - tmp64 = data; - copied = access_process_vm(child, addr, - &tmp64, sizeof(tmp64), 1); - if (copied == sizeof(tmp64)) - ret = 0; - } - break; - } - - case PTRACE_GETREGS: { - struct pt_regs32 __user *pregs = - (struct pt_regs32 __user *) addr; - + case PTRACE_GETREGS: ret = copy_regset_to_user(child, view, REGSET_GENERAL, 32 * sizeof(u32), 4 * sizeof(u32), @@ -760,29 +727,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 15 * sizeof(u32), &pregs->u_regs[0]); break; - } - - case PTRACE_GETREGS64: { - struct pt_regs __user *pregs = (struct pt_regs __user *) addr; - - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 1 * sizeof(u64), - 15 * sizeof(u64), - &pregs->u_regs[0]); - if (!ret) { - /* XXX doesn't handle 'y' register correctly XXX */ - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 32 * sizeof(u64), - 4 * sizeof(u64), - &pregs->tstate); - } - break; - } - - case PTRACE_SETREGS: { - struct pt_regs32 __user *pregs = - (struct pt_regs32 __user *) addr; + case PTRACE_SETREGS: ret = copy_regset_from_user(child, view, REGSET_GENERAL, 32 * sizeof(u32), 4 * sizeof(u32), @@ -793,39 +739,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 15 * sizeof(u32), &pregs->u_regs[0]); break; - } - - case PTRACE_SETREGS64: { - struct pt_regs __user *pregs = (struct pt_regs __user *) addr; - - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 1 * sizeof(u64), - 15 * sizeof(u64), - &pregs->u_regs[0]); - if (!ret) { - /* XXX doesn't handle 'y' register correctly XXX */ - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 32 * sizeof(u64), - 4 * sizeof(u64), - &pregs->tstate); - } - break; - } - - case PTRACE_GETFPREGS: { - struct fps { - unsigned int regs[32]; - unsigned int fsr; - unsigned int flags; - unsigned int extra; - unsigned int fpqd; - struct fq { - unsigned int insnaddr; - unsigned int insn; - } fpq[16]; - }; - struct fps __user *fps = (struct fps __user *) addr; + case PTRACE_GETFPREGS: ret = copy_regset_to_user(child, view, REGSET_FP, 0 * sizeof(u32), 32 * sizeof(u32), @@ -843,36 +758,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EFAULT; } break; - } - - case PTRACE_GETFPREGS64: { - struct fps { - unsigned int regs[64]; - unsigned long fsr; - }; - struct fps __user *fps = (struct fps __user *) addr; - - ret = copy_regset_to_user(child, view, REGSET_FP, - 0 * sizeof(u64), - 33 * sizeof(u64), - fps); - break; - } - - case PTRACE_SETFPREGS: { - struct fps { - unsigned int regs[32]; - unsigned int fsr; - unsigned int flags; - unsigned int extra; - unsigned int fpqd; - struct fq { - unsigned int insnaddr; - unsigned int insn; - } fpq[16]; - }; - struct fps __user *fps = (struct fps __user *) addr; + case PTRACE_SETFPREGS: ret = copy_regset_from_user(child, view, REGSET_FP, 0 * sizeof(u32), 32 * sizeof(u32), @@ -883,21 +770,94 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 1 * sizeof(u32), &fps->fsr); break; + + case PTRACE_READTEXT: + case PTRACE_READDATA: + ret = ptrace_readdata(child, addr, + (char __user *)addr2, data); + if (ret == data) + ret = 0; + else if (ret >= 0) + ret = -EIO; + break; + + case PTRACE_WRITETEXT: + case PTRACE_WRITEDATA: + ret = ptrace_writedata(child, (char __user *) addr2, + addr, data); + if (ret == data) + ret = 0; + else if (ret >= 0) + ret = -EIO; + break; + + default: + ret = compat_ptrace_request(child, request, addr, data); + break; } - case PTRACE_SETFPREGS64: { - struct fps { - unsigned int regs[64]; - unsigned long fsr; - }; - struct fps __user *fps = (struct fps __user *) addr; + return ret; +} + +struct fps { + unsigned int regs[64]; + unsigned long fsr; +}; + +long arch_ptrace(struct task_struct *child, long request, long addr, long data) +{ + const struct user_regset_view *view = task_user_regset_view(child); + struct pt_regs __user *pregs = (struct pt_regs __user *) addr; + unsigned long addr2 = task_pt_regs(current)->u_regs[UREG_I4]; + struct fps __user *fps = (struct fps __user *) addr; + int ret; + + switch (request) { + case PTRACE_PEEKUSR: + ret = (addr != 0) ? -EIO : 0; + break; + case PTRACE_GETREGS64: + ret = copy_regset_to_user(child, view, REGSET_GENERAL, + 1 * sizeof(u64), + 15 * sizeof(u64), + &pregs->u_regs[0]); + if (!ret) { + /* XXX doesn't handle 'y' register correctly XXX */ + ret = copy_regset_to_user(child, view, REGSET_GENERAL, + 32 * sizeof(u64), + 4 * sizeof(u64), + &pregs->tstate); + } + break; + + case PTRACE_SETREGS64: + ret = copy_regset_from_user(child, view, REGSET_GENERAL, + 1 * sizeof(u64), + 15 * sizeof(u64), + &pregs->u_regs[0]); + if (!ret) { + /* XXX doesn't handle 'y' register correctly XXX */ + ret = copy_regset_from_user(child, view, REGSET_GENERAL, + 32 * sizeof(u64), + 4 * sizeof(u64), + &pregs->tstate); + } + break; + + case PTRACE_GETFPREGS64: + ret = copy_regset_to_user(child, view, REGSET_FP, + 0 * sizeof(u64), + 33 * sizeof(u64), + fps); + break; + + case PTRACE_SETFPREGS64: ret = copy_regset_to_user(child, view, REGSET_FP, 0 * sizeof(u64), 33 * sizeof(u64), fps); break; - } case PTRACE_READTEXT: case PTRACE_READDATA: @@ -919,16 +879,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EIO; break; - case PTRACE_GETEVENTMSG: { - if (test_thread_flag(TIF_32BIT)) - ret = put_user(child->ptrace_message, - (unsigned int __user *) data); - else - ret = put_user(child->ptrace_message, - (unsigned long __user *) data); - break; - } - default: ret = ptrace_request(child, request, addr, data); break; diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S index adc62f490f36..6b9b718e24af 100644 --- a/arch/sparc64/kernel/systbls.S +++ b/arch/sparc64/kernel/systbls.S @@ -23,7 +23,7 @@ sys_call_table32: /*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys32_chown16, sys32_mknod /*15*/ .word sys_chmod, sys32_lchown16, sparc_brk, sys32_perfctr, sys32_lseek /*20*/ .word sys_getpid, sys_capget, sys_capset, sys32_setuid16, sys32_getuid16 -/*25*/ .word sys32_vmsplice, sys_ptrace, sys_alarm, sys32_sigaltstack, sys32_pause +/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys32_pause /*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice .word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile /*40*/ .word compat_sys_newlstat, sys_dup, sys_pipe, compat_sys_times, sys_getuid |