Author: Armin Rigo <[email protected]>
Branch:
Changeset: r78635:98e9b6aa3536
Date: 2015-07-22 16:58 +0200
http://bitbucket.org/pypy/pypy/changeset/98e9b6aa3536/
Log: Issue #2081: Oups, missed the "hg add".
diff --git a/rpython/translator/c/src/stacklet/switch_mips64_gcc.h
b/rpython/translator/c/src/stacklet/switch_mips64_gcc.h
new file mode 100644
--- /dev/null
+++ b/rpython/translator/c/src/stacklet/switch_mips64_gcc.h
@@ -0,0 +1,63 @@
+static void *slp_switch(void *(*save_state)(void*, void*),
+ void *(*restore_state)(void*, void*),
+ void *extra)
+{
+ void *result;
+ __asm__ volatile (
+ "daddiu $sp, $sp, -0x50\n"
+ "sd $s0, 0x0($sp)\n" /* push the registers specified as caller-save */
+ "sd $s1, 0x8($sp)\n"
+ "sd $s2, 0x10($sp)\n"
+ "sd $s3, 0x18($sp)\n"
+ "sd $s4, 0x20($sp)\n"
+ "sd $s5, 0x28($sp)\n"
+ "sd $s6, 0x30($sp)\n"
+ "sd $s7, 0x38($sp)\n"
+ "sd $fp, 0x40($sp)\n"
+ "sd $ra, 0x48($sp)\n"
+
+ "move $s0, %[rstate]\n" /* save 'restore_state' for later */
+ "move $s1, %[extra]\n" /* save 'extra' for later */
+
+ "move $a1, %[extra]\n"/* arg 2: extra */
+ "move $a0, $sp\n" /* arg 1: current (old) stack pointer */
+
+ "move $t9, %[sstate]\n"
+ "jalr $t9\n" /* call save_state() */
+
+ "beqz $v0, 0f\n" /* skip the rest if the return value is null */
+
+ "move $sp, $v0\n" /* change the stack pointer */
+
+ /* From now on, the stack pointer is modified, but the content of the
+ stack is not restored yet. It contains only garbage here. */
+
+ "move $a1, $s1\n" /* arg 2: extra */
+ "move $a0, $v0\n" /* arg 1: current (new) stack pointer */
+ "move $t9, $s0\n"
+ "jalr $t9\n" /* call restore_state() */
+
+ /* The stack's content is now restored. */
+
+ "0:\n"
+ "move %[result], $v0\n"
+ "ld $s0, 0x0($sp)\n"
+ "ld $s1, 0x8($sp)\n"
+ "ld $s2, 0x10($sp)\n"
+ "ld $s3, 0x18($sp)\n"
+ "ld $s4, 0x20($sp)\n"
+ "ld $s5, 0x28($sp)\n"
+ "ld $s6, 0x30($sp)\n"
+ "ld $s7, 0x38($sp)\n"
+ "ld $fp, 0x40($sp)\n"
+ "ld $ra, 0x48($sp)\n"
+ "daddiu $sp, $sp, 0x50\n"
+
+ : [result]"=&r"(result)
+ : [sstate]"r"(save_state),
+ [rstate]"r"(restore_state),
+ [extra]"r"(extra)
+ : "memory", "v0", "a0", "a1", "t9"
+ );
+ return result;
+}
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