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-rw-r--r--arch/sparc64/Kconfig8
-rw-r--r--arch/sparc64/kernel/Makefile1
-rw-r--r--arch/sparc64/kernel/binfmt_elf32.c134
-rw-r--r--arch/sparc64/kernel/ptrace.c266
-rw-r--r--arch/sparc64/kernel/systbls.S2
-rw-r--r--include/asm-sparc64/elf.h59
-rw-r--r--include/asm-sparc64/ptrace.h2
7 files changed, 163 insertions, 309 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 5023b81..b810f2b 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 4b78b24..1bf5b18 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 a0718dc..0000000
--- 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 51f0124..9a1ba1f 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 adc62f4..6b9b718 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
diff --git a/include/asm-sparc64/elf.h b/include/asm-sparc64/elf.h
index 272a658..11c8e68 100644
--- a/include/asm-sparc64/elf.h
+++ b/include/asm-sparc64/elf.h
@@ -75,7 +75,6 @@
/*
* These are used to set parameters in the core dumps.
*/
-#ifndef ELF_ARCH
#define ELF_ARCH EM_SPARCV9
#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2MSB
@@ -100,14 +99,59 @@ typedef struct {
unsigned long pr_gsr;
unsigned long pr_fprs;
} elf_fpregset_t;
-#endif
+
+/* Format of 32-bit elf_gregset_t is:
+ * G0 --> G7
+ * O0 --> O7
+ * L0 --> L7
+ * I0 --> I7
+ * PSR, PC, nPC, Y, WIM, TBR
+ */
+typedef unsigned int compat_elf_greg_t;
+#define COMPAT_ELF_NGREG 38
+typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_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];
+} compat_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;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
-#ifndef elf_check_arch
-#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */
-#endif
+#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
+#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
+ (x)->e_machine == EM_SPARC32PLUS)
+#define compat_start_thread start_thread32
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE PAGE_SIZE
@@ -117,9 +161,8 @@ typedef struct {
the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
-#ifndef ELF_ET_DYN_BASE
-#define ELF_ET_DYN_BASE 0x0000010000000000UL
-#endif
+#define ELF_ET_DYN_BASE 0x0000010000000000UL
+#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
/* This yields a mask that user programs can use to figure out what
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h
index 734a767..8617c3a 100644
--- a/include/asm-sparc64/ptrace.h
+++ b/include/asm-sparc64/ptrace.h
@@ -95,6 +95,8 @@ struct sparc_trapf {
#ifdef __KERNEL__
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+
#define force_successful_syscall_return() \
do { current_thread_info()->syscall_noerror = 1; \
} while (0)
generated by cgit v0.10.2 at 2024-11-09 18:50:54 (GMT)