[MIPS64] libc/libm support
libc/libm support for MIPS64 targets
Change-Id: I8271941d418612a286be55495f0e95822f90004f
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Raghu Gandham <raghu.gandham@imgtec.com>
diff --git a/libc/arch-mips64/bionic/crtbegin.c b/libc/arch-mips64/bionic/crtbegin.c
new file mode 100644
index 0000000..2ea31ad
--- /dev/null
+++ b/libc/arch-mips64/bionic/crtbegin.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#include "../../bionic/libc_init_common.h"
+#include <stddef.h>
+#include <stdint.h>
+
+__attribute__ ((section (".preinit_array")))
+void (*__PREINIT_ARRAY__)(void) = (void (*)(void)) -1;
+
+__attribute__ ((section (".init_array")))
+void (*__INIT_ARRAY__)(void) = (void (*)(void)) -1;
+
+__attribute__ ((section (".fini_array")))
+void (*__FINI_ARRAY__)(void) = (void (*)(void)) -1;
+
+
+__LIBC_HIDDEN__ void do_mips_start(void *raw_args) {
+ structors_array_t array;
+ array.preinit_array = &__PREINIT_ARRAY__;
+ array.init_array = &__INIT_ARRAY__;
+ array.fini_array = &__FINI_ARRAY__;
+
+ __libc_init(raw_args, NULL, &main, &array);
+}
+
+/*
+ * This function prepares the return address with a branch-and-link
+ * instruction (bal) and then uses a .cpsetup to compute the Global
+ * Offset Table (GOT) pointer ($gp). The $gp is then used to load
+ * the address of _do_mips_start() into $t9 just before calling it.
+ * Terminating the stack with a NULL return address.
+ */
+__asm__ (
+" .set push \n"
+" \n"
+" .text \n"
+" .align 4 \n"
+" .type __start,@function \n"
+" .globl __start \n"
+" .globl _start \n"
+" \n"
+" .ent __start \n"
+"__start: \n"
+" _start: \n"
+" .frame $sp,32,$0 \n"
+" .mask 0x80000000,-8 \n"
+" \n"
+" move $a0, $sp \n"
+" daddiu $sp, $sp, -32 \n"
+" \n"
+" .set noreorder \n"
+" bal 1f \n"
+" nop \n"
+"1: \n"
+" .cpsetup $ra,16,1b \n"
+" .set reorder \n"
+" \n"
+" sd $0, 24($sp) \n"
+" jal do_mips_start \n"
+" \n"
+"2: b 2b \n"
+" .end __start \n"
+" \n"
+" .set pop \n"
+);
+
+#include "../../arch-common/bionic/__dso_handle.h"
+#include "atexit.h"