From c8105001007f377519e9a68bffb1621cc07b2ef1 Mon Sep 17 00:00:00 2001 From: Anatolii Nikulin Date: Tue, 18 Aug 2015 16:03:43 +0300 Subject: [PATCH] [FIX] remove unnessary function uprobe_prepare_singlestep() Change-Id: Ie9cac13905c4e4c040fa6880e316d3cb1617bc83 --- uprobe/arch/x86/swap-asm/swap_uprobes.c | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/uprobe/arch/x86/swap-asm/swap_uprobes.c b/uprobe/arch/x86/swap-asm/swap_uprobes.c index b12e024..2762bbc 100644 --- a/uprobe/arch/x86/swap-asm/swap_uprobes.c +++ b/uprobe/arch/x86/swap-asm/swap_uprobes.c @@ -437,32 +437,6 @@ static void prepare_ss(struct pt_regs *regs) regs->flags &= ~IF_MASK; } -/** - * @brief Prepares singlestep for current CPU. - * - * @param p Pointer to uprobe. - * @param regs Pointer to CPU registers data. - * @return Void. - */ -static void uprobe_prepare_singlestep(struct uprobe *p, struct pt_regs *regs) -{ - int cpu = smp_processor_id(); - - if (p->ss_addr[cpu]) { - regs->EREG(ip) = (unsigned long)p->ss_addr[cpu]; - p->ss_addr[cpu] = NULL; - } else { - regs->EREG(flags) |= TF_MASK; - regs->EREG(flags) &= ~IF_MASK; - /* single step inline if the instruction is an int3 */ - if (p->opcode == BREAKPOINT_INSTRUCTION) { - regs->EREG(ip) = (unsigned long) p->addr; - /* printk(KERN_INFO "break_insn!!!\n"); */ - } else - regs->EREG(ip) = (unsigned long) p->ainsn.insn; - } -} - static int uprobe_handler(struct pt_regs *regs) { struct uprobe *p; @@ -497,8 +471,6 @@ static int uprobe_handler(struct pt_regs *regs) set_current_probe(p); prepare_ss(regs); } - - uprobe_prepare_singlestep(p, regs); } } -- 2.7.4