Add libunwindstack support for Mips and Mips64
This patch requires v3.18 kernel or above, because v3.10 kernel
has a bug (as of 8/1/2017) in the ptrace(GETREGSET) function for mips
and mips64.
Change-Id: I004c1fa190193eebe1c84440b366289122a6bd8a
Signed-off-by: Douglas Leung <douglas.leung@mips.com>
Signed-off-by: Dejan Jovicevic <dejan.jovicevic@mips.com>
diff --git a/libunwindstack/AsmGetRegsMips64.S b/libunwindstack/AsmGetRegsMips64.S
new file mode 100644
index 0000000..7a244f6
--- /dev/null
+++ b/libunwindstack/AsmGetRegsMips64.S
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+ .text
+ .type AsmGetRegs, %function
+ .globl AsmGetRegs
+ .ent AsmGetRegs
+ .balign 16
+AsmGetRegs:
+ .cfi_startproc
+ .cfi_def_cfa $sp, 0
+ .set push
+ .set noreorder
+ .cpload $t9
+ sd $zero, 0($a0)
+ .set noat
+ sd $at, 8($a0)
+ .set at
+ sd $v0, 16($a0)
+ sd $v1, 24($a0)
+ sd $a0, 32($a0)
+ sd $a1, 40($a0)
+ sd $a2, 48($a0)
+ sd $a3, 56($a0)
+ sd $a4, 64($a0)
+ sd $a5, 72($a0)
+ sd $a6, 80($a0)
+ sd $a7, 88($a0)
+ sd $t0, 96($a0)
+ sd $t1, 104($a0)
+ sd $t2, 112($a0)
+ sd $t3, 120($a0)
+ sd $s0, 128($a0)
+ sd $s1, 136($a0)
+ sd $s2, 144($a0)
+ sd $s3, 152($a0)
+ sd $s4, 160($a0)
+ sd $s5, 168($a0)
+ sd $s6, 176($a0)
+ sd $s7, 184($a0)
+ sd $t8, 192($a0)
+ sd $t9, 200($a0)
+ sd $k0, 208($a0)
+ sd $k1, 216($a0)
+ sd $gp, 224($a0)
+ sd $sp, 232($a0)
+ sd $s8, 240($a0)
+ sd $ra, 248($a0)
+ jalr $zero, $ra
+ sd $ra, 256($a0) // set PC to the calling function
+
+ .set pop
+ .cfi_endproc
+ .size AsmGetRegs, .-AsmGetRegs
+ .end AsmGetRegs