Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 126 insertions, 0 deletions

diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c
new file mode 100644
index 000000000000..d1833f164bbe
--- /dev/null
+++ b/arch/parisc/kernel/binfmt_elf32.c
@@ -0,0 +1,126 @@
+/*
+ * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels
+ *
+ * Copyright (C) 2000 John Marvin
+ * Copyright (C) 2000 Hewlett Packard Co.
+ *
+ * Heavily inspired from various other efforts to do the same thing
+ * (ia64,sparc64/mips64)
+ */
+
+/* Make sure include/asm-parisc/elf.h does the right thing */
+
+#define ELF_CLASS       ELFCLASS32
+
+#define ELF_CORE_COPY_REGS(dst, pt)     \
+        memset(dst, 0, sizeof(dst));    /* don't leak any "random" bits */ \
+        {       int i; \
+                for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \
+                for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \
+        } \
+        dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \
+        dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \
+        dst[44] = (elf_greg_t) pt->sar;   dst[45] = (elf_greg_t) pt->iir; \
+        dst[46] = (elf_greg_t) pt->isr;   dst[47] = (elf_greg_t) pt->ior; \
+        dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \
+        dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \
+        dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \
+        dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \
+        dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \
+        dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \
+        dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \
+        dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15);
+
+
+typedef unsigned int elf_greg_t;
+
+#include <linux/spinlock.h>
+#include <asm/processor.h>
+#include <linux/module.h>
+#include <linux/elfcore.h>
+#include <linux/compat.h>               /* struct compat_timeval */
+
+#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 */
+};
+
+#define elf_addr_t      unsigned int
+#define init_elf_binfmt init_elf32_binfmt
+
+#define ELF_PLATFORM  ("PARISC32\0")
+
+/*
+ * We should probably use this macro to set a flag somewhere to indicate
+ * this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we
+ * could set a processor dependent flag in the thread_struct.
+ */
+
+#define SET_PERSONALITY(ex, ibcs2) \
+        current->personality = PER_LINUX32; \
+        current->thread.map_base = DEFAULT_MAP_BASE32; \
+        current->thread.task_size = DEFAULT_TASK_SIZE32 \
+
+#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;
+}
+
+#include "../../../fs/binfmt_elf.c"
+
+/* Set up a separate execution domain for ELF32 binaries running
+ * on an ELF64 kernel */
+
+static struct exec_domain parisc32_exec_domain = { 
+        .name = "Linux/ELF32",
+        .pers_low = PER_LINUX32,
+        .pers_high = PER_LINUX32,
+};      
+
+static int __init parisc32_exec_init(void)
+{
+        /* steal the identity signal mappings from the default domain */
+        parisc32_exec_domain.signal_map = default_exec_domain.signal_map;
+        parisc32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
+
+        register_exec_domain(&parisc32_exec_domain);
+
+        return 0;
+}
+
+__initcall(parisc32_exec_init);