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-rw-r--r--arch/sparc64/kernel/binfmt_elf32.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c
new file mode 100644
index 000000000000..a1a12d2aa353
--- /dev/null
+++ b/arch/sparc64/kernel/binfmt_elf32.c
@@ -0,0 +1,159 @@
+/*
+ * binfmt_elf32.c: Support 32-bit Sparc ELF binaries on Ultra.
+ *
+ * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com)
+ * 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;
+
+/* For the most part we present code dumps in the format
+ * Solaris does.
+ */
+typedef unsigned int elf_greg_t;
+#define ELF_NGREG 38
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Format is:
+ * G0 --> G7
+ * O0 --> O7
+ * L0 --> L7
+ * I0 --> I7
+ * PSR, PC, nPC, Y, WIM, TBR
+ */
+#include <asm/psrcompat.h>
+#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
+do { unsigned int *dest = &(__elf_regs[0]); \
+ struct pt_regs *src = (__pt_regs); \
+ unsigned int __user *sp; \
+ int i; \
+ for(i = 0; i < 16; i++) \
+ dest[i] = (unsigned int) src->u_regs[i];\
+ /* Don't try this at home kids... */ \
+ sp = (unsigned int __user *) (src->u_regs[14] & \
+ 0x00000000fffffffc); \
+ for(i = 0; i < 16; i++) \
+ __get_user(dest[i+16], &sp[i]); \
+ dest[32] = tstate_to_psr(src->tstate); \
+ dest[33] = (unsigned int) src->tpc; \
+ dest[34] = (unsigned int) src->tnpc; \
+ dest[35] = src->y; \
+ dest[36] = dest[37] = 0; /* XXX */ \
+} while(0);
+
+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/config.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;
+}
+
+#define elf_addr_t u32
+#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 0xf0000000
+
+#include "../../../fs/binfmt_elf.c"