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authorPaul Mundt <lethal@linux-sh.org>2008-05-19 13:40:12 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-28 18:10:28 +0900
commit3bc24a1a5441ef621daf737ec93b0a10e8999d59 (patch)
tree09e3e2e8eda617de72f643aa22ba86490b16cd17 /arch/sh/kernel/ptrace_32.c
parent9b14ec35f03d89c88cba225add8b6eca15203964 (diff)
sh: Initial ELF FDPIC support.
This adds initial support for ELF FDPIC on MMU-less SH, as per version 0.2 of the ABI definition at: http://www.codesourcery.com/public/docs/sh-fdpic/sh-fdpic-abi.txt Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/ptrace_32.c')
-rw-r--r--arch/sh/kernel/ptrace_32.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index fddb547f3c2..2bc72def5cf 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -241,6 +241,29 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
}
#endif
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+ case PTRACE_GETFDPIC: {
+ unsigned long tmp = 0;
+
+ switch (addr) {
+ case PTRACE_GETFDPIC_EXEC:
+ tmp = child->mm->context.exec_fdpic_loadmap;
+ break;
+ case PTRACE_GETFDPIC_INTERP:
+ tmp = child->mm->context.interp_fdpic_loadmap;
+ break;
+ default:
+ break;
+ }
+
+ ret = 0;
+ if (put_user(tmp, (unsigned long *) data)) {
+ ret = -EFAULT;
+ break;
+ }
+ break;
+ }
+#endif
default:
ret = ptrace_request(child, request, addr, data);
break;