strace: fix ptrace {PEEK, POKE}USER arguments decoding on xtensa

Backported from: 57fac759ca0945f5608ed6a2228c697f8fb67cd6
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/strace/strace-04-xtensa-sort-values-in-struct_user_offsets.patch b/package/strace/strace-04-xtensa-sort-values-in-struct_user_offsets.patch
new file mode 100644 (file)
index 0000000..0ef038d
--- /dev/null
+++ b/package/strace/strace-04-xtensa-sort-values-in-struct_user_offsets.patch
@@ -0,0 +1,76 @@
+From 57fac759ca0945f5608ed6a2228c697f8fb67cd6 Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Wed, 18 Jun 2014 06:04:06 +0400
+Subject: [PATCH] xtensa: sort values in struct_user_offsets
+
+Otherwise ptrace syscall argument decoding is wrong:
+  ptrace(PTRACE_PEEKUSER, 296, syscall_nr, [0x4048eb]) = 0
+  ptrace(PTRACE_PEEKUSER, 296, syscall_nr, [0x3fa6cd30]) = 0
+  ptrace(PTRACE_PEEKUSER, 296, syscall_nr, [0x8040676d]) = 0
+instead of
+  ptrace(PTRACE_PEEKUSER, 296, pc, [0x4048eb]) = 0
+  ptrace(PTRACE_PEEKUSER, 296, a1, [0x3fa6cd30]) = 0
+  ptrace(PTRACE_PEEKUSER, 296, a0, [0x8040676d]) = 0
+
+* process.c (struct_user_offsets) [XTENSA]: Sort values.
+---
+Backported from: 57fac759ca0945f5608ed6a2228c697f8fb67cd6
+
+ process.c | 34 +++++++++++++++++-----------------
+ 1 file changed, 17 insertions(+), 17 deletions(-)
+
+diff --git a/process.c b/process.c
+index a880f9e..2cd0f01 100644
+--- a/process.c
++++ b/process.c
+@@ -1865,6 +1865,23 @@ const struct xlat struct_user_offsets[] = {
+       { 4*33, "sr" },
+ #endif
+ #ifdef XTENSA
++      { REG_A_BASE,           "a0"            },
++      { REG_A_BASE+1,         "a1"            },
++      { REG_A_BASE+2,         "a2"            },
++      { REG_A_BASE+3,         "a3"            },
++      { REG_A_BASE+4,         "a4"            },
++      { REG_A_BASE+5,         "a5"            },
++      { REG_A_BASE+6,         "a6"            },
++      { REG_A_BASE+7,         "a7"            },
++      { REG_A_BASE+8,         "a8"            },
++      { REG_A_BASE+9,         "a9"            },
++      { REG_A_BASE+10,        "a10"           },
++      { REG_A_BASE+11,        "a11"           },
++      { REG_A_BASE+12,        "a12"           },
++      { REG_A_BASE+13,        "a13"           },
++      { REG_A_BASE+14,        "a14"           },
++      { REG_A_BASE+15,        "a15"           },
++      { REG_PC,               "pc"            },
+       { SYSCALL_NR,           "syscall_nr"    },
+       { REG_AR_BASE,          "ar0"           },
+       { REG_AR_BASE+1,        "ar1"           },
+@@ -1937,23 +1954,6 @@ const struct xlat struct_user_offsets[] = {
+       { REG_WB,               "wb"            },
+       { REG_WS,               "ws"            },
+       { REG_PS,               "ps"            },
+-      { REG_PC,               "pc"            },
+-      { REG_A_BASE,           "a0"            },
+-      { REG_A_BASE+1,         "a1"            },
+-      { REG_A_BASE+2,         "a2"            },
+-      { REG_A_BASE+3,         "a3"            },
+-      { REG_A_BASE+4,         "a4"            },
+-      { REG_A_BASE+5,         "a5"            },
+-      { REG_A_BASE+6,         "a6"            },
+-      { REG_A_BASE+7,         "a7"            },
+-      { REG_A_BASE+8,         "a8"            },
+-      { REG_A_BASE+9,         "a9"            },
+-      { REG_A_BASE+10,        "a10"           },
+-      { REG_A_BASE+11,        "a11"           },
+-      { REG_A_BASE+12,        "a12"           },
+-      { REG_A_BASE+13,        "a13"           },
+-      { REG_A_BASE+14,        "a14"           },
+-      { REG_A_BASE+15,        "a15"           },
+ #endif
+ 
+       /* Other fields in "struct user" */
+-- 
+1.8.1.4
+