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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/parisc/kernel/binfmt_elf32.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/parisc/kernel/binfmt_elf32.c')
-rw-r--r--arch/parisc/kernel/binfmt_elf32.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c
new file mode 100644
index 00000000000..f61692d2b55
--- /dev/null
+++ b/arch/parisc/kernel/binfmt_elf32.c
@@ -0,0 +1,103 @@
+/*
+ * 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 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) \
+ set_thread_flag(TIF_32BIT); \
+ 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"