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, 139 insertions, 0 deletions

diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
new file mode 100644
index 00000000000..ee21b18c37a
--- /dev/null
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -0,0 +1,139 @@
+/*
+ * Support for o32 Linux/MIPS ELF binaries.
+ *
+ * Copyright (C) 1999, 2001 Ralf Baechle
+ * Copyright (C) 1999, 2001 Silicon Graphics, Inc.
+ *
+ * Heavily inspired by the 32-bit Sparc compat code which is
+ * 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_MIPS
+#define ELF_CLASS		ELFCLASS32
+#ifdef __MIPSEB__
+#define ELF_DATA		ELFDATA2MSB;
+#else /* __MIPSEL__ */
+#define ELF_DATA		ELFDATA2LSB;
+#endif
+
+/* ELF register definitions */
+#define ELF_NGREG	45
+#define ELF_NFPREG	33
+
+typedef unsigned int elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(hdr)						\
+({									\
+	int __res = 1;							\
+	struct elfhdr *__h = (hdr);					\
+									\
+	if (__h->e_machine != EM_MIPS)					\
+		__res = 0;						\
+	if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\
+		__res = 0;						\
+	if ((__h->e_flags & EF_MIPS_ABI2) != 0)				\
+		__res = 0;						\
+	if (((__h->e_flags & EF_MIPS_ABI) != 0) &&			\
+	    ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32))		\
+		__res = 0;						\
+									\
+	__res;								\
+})
+
+#define TASK32_SIZE		0x7fff8000UL
+#undef ELF_ET_DYN_BASE
+#define ELF_ET_DYN_BASE         (TASK32_SIZE / 3 * 2)
+
+#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 */
+	__kernel_uid_t	pr_uid;
+	__kernel_gid_t	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	u32
+#define elf_caddr_t	u32
+#define init_elf_binfmt init_elf32_binfmt
+
+#define jiffies_to_timeval jiffies_to_compat_timeval
+static __inline__ void
+jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
+{
+	/*
+	 * Convert jiffies to nanoseconds and seperate with
+	 * one divide.
+	 */
+	u64 nsec = (u64)jiffies * TICK_NSEC; 
+	value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_usec);
+	value->tv_usec /= NSEC_PER_USEC;
+}
+
+#undef ELF_CORE_COPY_REGS
+#define ELF_CORE_COPY_REGS(_dest,_regs) elf32_core_copy_regs(_dest,_regs);
+
+void elf32_core_copy_regs(elf_gregset_t _dest, struct pt_regs *_regs)
+{
+	int i;
+
+	memset(_dest, 0, sizeof(elf_gregset_t));
+
+	/* XXXKW the 6 is from EF_REG0 in gdb/gdb/mips-linux-tdep.c, include/asm-mips/reg.h */
+	for (i=6; i<38; i++)
+		_dest[i] = (elf_greg_t) _regs->regs[i-6];
+	_dest[i++] = (elf_greg_t) _regs->lo;
+	_dest[i++] = (elf_greg_t) _regs->hi;
+	_dest[i++] = (elf_greg_t) _regs->cp0_epc;
+	_dest[i++] = (elf_greg_t) _regs->cp0_badvaddr;
+	_dest[i++] = (elf_greg_t) _regs->cp0_status;
+	_dest[i++] = (elf_greg_t) _regs->cp0_cause;
+}
+
+MODULE_DESCRIPTION("Binary format loader for compatibility with o32 Linux/MIPS binaries");
+MODULE_AUTHOR("Ralf Baechle (ralf@linux-mips.org)");
+
+#undef MODULE_DESCRIPTION
+#undef MODULE_AUTHOR
+
+#include "../../../fs/binfmt_elf.c"