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authorMike Frysinger <vapier@gentoo.org>2009-07-03 00:17:45 +0000
committerMike Frysinger <vapier@gentoo.org>2009-09-16 21:31:42 -0400
commit53e18df745b6f833df07ead62ded09ebae3b0303 (patch)
tree20de888ee6ef362554a9dea0d2fbad280cc91272 /arch/blackfin
parent81c969a8bc4bdc39032f6c58e50e61a8daeeb655 (diff)
Blackfin: add support for common FDPIC ptrace requests
The FDPIC arches support a standard set of ptrace requests so rather than define our own custom API, hook up those requests for common code to leverage. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/kernel/ptrace.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 271d7c63cef..30f4828277a 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -285,9 +285,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
tmp = child->mm->start_data;
#ifdef CONFIG_BINFMT_ELF_FDPIC
} else if (addr == (sizeof(struct pt_regs) + 12)) {
- tmp = child->mm->context.exec_fdpic_loadmap;
+ goto case_PTRACE_GETFDPIC_EXEC;
} else if (addr == (sizeof(struct pt_regs) + 16)) {
- tmp = child->mm->context.interp_fdpic_loadmap;
+ goto case_PTRACE_GETFDPIC_INTERP;
#endif
} else {
tmp = get_reg(child, addr);
@@ -296,6 +296,28 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
}
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+ case PTRACE_GETFDPIC: {
+ unsigned long tmp = 0;
+
+ switch (addr) {
+ case_PTRACE_GETFDPIC_EXEC:
+ case PTRACE_GETFDPIC_EXEC:
+ tmp = child->mm->context.exec_fdpic_loadmap;
+ break;
+ case_PTRACE_GETFDPIC_INTERP:
+ case PTRACE_GETFDPIC_INTERP:
+ tmp = child->mm->context.interp_fdpic_loadmap;
+ break;
+ default:
+ break;
+ }
+
+ ret = put_user(tmp, datap);
+ break;
+ }
+#endif
+
/* when I and D space are separate, this will have to be fixed. */
case PTRACE_POKEDATA:
pr_debug("ptrace: PTRACE_PEEKDATA\n");