[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 5 May 2015 10:10:08 +0000
From: He Kuang <hekuang@...wei.com>
To: <ast@...mgrid.com>, <davem@...emloft.net>, <acme@...nel.org>,
<mingo@...hat.com>, <a.p.zijlstra@...llo.nl>,
<masami.hiramatsu.pt@...achi.com>, <jolsa@...nel.org>
CC: <wangnan0@...wei.com>, <lizefan@...nel.org>,
<linux-kernel@...r.kernel.org>, <pi3orama@....com>
Subject: [RFC PATCH 2/6] perf bpf: Add pt_regs convert table for x86
Convert register number in debuginfo to its index in pt_regs.
Signed-off-by: He Kuang <hekuang@...wei.com>
---
tools/perf/arch/x86/util/dwarf-regs.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/tools/perf/arch/x86/util/dwarf-regs.c b/tools/perf/arch/x86/util/dwarf-regs.c
index be22dd4..e586a47 100644
--- a/tools/perf/arch/x86/util/dwarf-regs.c
+++ b/tools/perf/arch/x86/util/dwarf-regs.c
@@ -59,10 +59,31 @@ const char *x86_64_regs_table[X86_64_MAX_REGS] = {
"%r15",
};
+const char x86_64_pt_regs_table[X86_64_MAX_REGS] = {
+ 10,
+ 12,
+ 11,
+ 5,
+ 13,
+ 14,
+ 4,
+ 19,
+ 9,
+ 8,
+ 7,
+ 6,
+ 3,
+ 2,
+ 1,
+ 0,
+};
+
/* TODO: switching by dwarf address size */
#ifdef __x86_64__
#define ARCH_MAX_REGS X86_64_MAX_REGS
#define arch_regs_table x86_64_regs_table
+#define arch_pt_regs_table x86_64_pt_regs_table
+#define arch_pt_regs_type unsigned long
#else
#define ARCH_MAX_REGS X86_32_MAX_REGS
#define arch_regs_table x86_32_regs_table
@@ -73,3 +94,13 @@ const char *get_arch_regstr(unsigned int n)
{
return (n <= ARCH_MAX_REGS) ? arch_regs_table[n] : NULL;
}
+
+char get_arch_pt_regs(unsigned int n)
+{
+ return (n <= ARCH_MAX_REGS) ? arch_pt_regs_table[n] : -1;
+}
+
+int get_arch_pt_regs_size(void)
+{
+ return sizeof(arch_pt_regs_type);
+}
--
1.8.5.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists