From 53e18df745b6f833df07ead62ded09ebae3b0303 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 3 Jul 2009 00:17:45 +0000 Subject: [PATCH] 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 --- arch/blackfin/kernel/ptrace.c | 26 ++++++++++++++++++++++++-- 1 file 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"); -- 2.20.1