diff options
| author | Tony Lu <zlu@tilera.com> | 2013-08-09 21:08:57 +0200 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-30 17:55:53 +0200 |
| commit | 3fa17c395bb0c358745fbe0c8aa039d6cdac1735 (patch) | |
| tree | c12f999476581bf31929c4d6a7697efe7062d904 /arch/tile/mm/fault.c | |
| parent | tile: support ftrace on tilegx (diff) | |
| download | linux-3fa17c395bb0c358745fbe0c8aa039d6cdac1735.tar.xz linux-3fa17c395bb0c358745fbe0c8aa039d6cdac1735.zip | |
tile: support kprobes on tilegx
This change includes support for Kprobes, Jprobes and Return Probes.
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/mm/fault.c')
| -rw-r--r-- | arch/tile/mm/fault.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index 502664ae1e6e..64eec3f9584f 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -34,6 +34,7 @@ #include <linux/hugetlb.h> #include <linux/syscalls.h> #include <linux/uaccess.h> +#include <linux/kdebug.h> #include <asm/pgalloc.h> #include <asm/sections.h> @@ -721,6 +722,17 @@ void do_page_fault(struct pt_regs *regs, int fault_num, { int is_page_fault; +#ifdef CONFIG_KPROBES + /* + * This is to notify the fault handler of the kprobes. The + * exception code is redundant as it is also carried in REGS, + * but we pass it anyhow. + */ + if (notify_die(DIE_PAGE_FAULT, "page fault", regs, -1, + regs->faultnum, SIGSEGV) == NOTIFY_STOP) + return; +#endif + #ifdef __tilegx__ /* * We don't need early do_page_fault_ics() support, since unlike |