Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / blackfin / lib / __kgdb.S

diff --git a/qemu/roms/u-boot/arch/blackfin/lib/__kgdb.S b/qemu/roms/u-boot/arch/blackfin/lib/__kgdb.S
new file mode 100644 (file)
index 0000000..4e7b6a4
--- /dev/null
+++ b/qemu/roms/u-boot/arch/blackfin/lib/__kgdb.S
@@ -0,0 +1,154 @@
+#include <linux/linkage.h>
+
+/* save stack context for non-local goto
+ * int kgdb_setjmp(long *buf)
+ */
+
+ENTRY(_kgdb_setjmp)
+       [--SP] = p0;    /* Save P0 */
+       p0 = r0;
+       r0 = [SP++];    /* Load P0 into R0 */
+
+       [p0 + 0x00] = r0;       /* GP address registers */
+       [p0 + 0x04] = p1;
+       [p0 + 0x08] = p2;
+       [p0 + 0x0C] = p3;
+       [p0 + 0x10] = p4;
+       [p0 + 0x14] = p5;
+       [p0 + 0x18] = FP;       /* frame pointer */
+       [p0 + 0x1C] = SP;       /* stack pointer */
+
+       [p0 + 0x20] = p0;       /* data regs */
+       [p0 + 0x24] = r1;
+       [p0 + 0x28] = r2;
+       [p0 + 0x2C] = r3;
+       [p0 + 0x30] = r4;
+       [p0 + 0x34] = r5;
+       [p0 + 0x38] = r6;
+       [p0 + 0x3C] = r7;
+
+       r0 = ASTAT;     [p0 + 0x40] = r0;
+
+       /* loop counters */
+       r0 = LC0;       [p0 + 0x44] = r0;
+       r0 = LC1;       [p0 + 0x48] = r0;
+
+       /* Accumulator */
+       r0 = A0.w;      [p0 + 0x4C] = r0;
+       r0.l = A0.x;    [p0 + 0x50] = r0;
+       r0 = A1.w;      [p0 + 0x54] = r0;
+       r0.l = A1.x;    [p0 + 0x58] = r0;
+
+       /* index registers */
+       r0 = i0;        [p0 + 0x5C] = r0;
+       r0 = i1;        [p0 + 0x60] = r0;
+       r0 = i2;        [p0 + 0x64] = r0;
+       r0 = i3;        [p0 + 0x68] = r0;
+
+       /* modifier registers */
+       r0 = m0;        [p0 + 0x6C] = r0;
+       r0 = m1;        [p0 + 0x70] = r0;
+       r0 = m2;        [p0 + 0x74] = r0;
+       r0 = m3;        [p0 + 0x78] = r0;
+
+       /* length registers */
+       r0 = l0;        [p0 + 0x7C] = r0;
+       r0 = l1;        [p0 + 0x80] = r0;
+       r0 = l2;        [p0 + 0x84] = r0;
+       r0 = l3;        [p0 + 0x88] = r0;
+
+       /* base registers */
+       r0 = b0;        [p0 + 0x8C] = r0;
+       r0 = b1;        [p0 + 0x90] = r0;
+       r0 = b2;        [p0 + 0x94] = r0;
+       r0 = b3;        [p0 + 0x98] = r0;
+
+       /* store return address */
+       r0 = RETS;      [p0 + 0x9C] = r0;
+
+       R0 = 0;
+       RTS;
+ENDPROC(_kgdb_setjmp)
+
+/*
+ * non-local jump to a saved stack context
+ * longjmp(long *buf, int val)
+ */
+
+ENTRY(_kgdb_longjmp)
+       p0 = r0;
+       r0 = [p0 + 0x00];
+       [--sp] = r0;
+
+       /* GP address registers - skip p0 for now*/
+       p1 = [p0 + 0x04];
+       p2 = [p0 + 0x08];
+       p3 = [p0 + 0x0C];
+       p4 = [p0 + 0x10];
+       p5 = [p0 + 0x14];
+       /* frame pointer */
+       fp = [p0 + 0x18];
+       /* stack pointer */
+       r0 = [sp++];
+       sp = [p0 + 0x1C];
+       [--sp] = r0;
+       [--sp] = r1;
+
+       /* data regs */
+       r0 = [p0 + 0x20];
+       r1 = [p0 + 0x24];
+       r2 = [p0 + 0x28];
+       r3 = [p0 + 0x2C];
+       r4 = [p0 + 0x30];
+       r5 = [p0 + 0x34];
+       r6 = [p0 + 0x38];
+       r7 = [p0 + 0x3C];
+
+       r0 = [p0 + 0x40];       ASTAT = r0;
+
+       /* loop counters */
+       r0 = [p0 + 0x44];       LC0 = r0;
+       r0 = [p0 + 0x48];       LC1 = r0;
+
+       /* Accumulator */
+       r0 = [p0 + 0x4C];       A0.w = r0;
+       r0 = [p0 + 0x50];       A0.x = r0;
+       r0 = [p0 + 0x54];       A1.w = r0;
+       r0 = [p0 + 0x58];       A1.x = r0;
+
+       /* index registers */
+       r0 = [p0 + 0x5C];       i0 = r0;
+       r0 = [p0 + 0x60];       i1 = r0;
+       r0 = [p0 + 0x64];       i2 = r0;
+       r0 = [p0 + 0x68];       i3 = r0;
+
+       /* modifier registers */
+       r0 = [p0 + 0x6C];       m0 = r0;
+       r0 = [p0 + 0x70];       m1 = r0;
+       r0 = [p0 + 0x74];       m2 = r0;
+       r0 = [p0 + 0x78];       m3 = r0;
+
+       /* length registers */
+       r0 = [p0 + 0x7C];       l0 = r0;
+       r0 = [p0 + 0x80];       l1 = r0;
+       r0 = [p0 + 0x84];       l2 = r0;
+       r0 = [p0 + 0x88];       l3 = r0;
+
+       /* base registers */
+       r0 = [p0 + 0x8C];       b0 = r0;
+       r0 = [p0 + 0x90];       b1 = r0;
+       r0 = [p0 + 0x94];       b2 = r0;
+       r0 = [p0 + 0x98];       b3 = r0;
+
+       /* store return address */
+       r0 = [p0 + 0x9C];       RETS = r0;
+
+       /* fixup R0 & P0 */
+       r0 = [sp++];
+       p0 = [sp++];
+       CC = R0 == 0;
+       IF !CC JUMP .Lfinished;
+       R0 = 1;
+.Lfinished:
+       RTS;
+ENDPROC(_kgdb_longjmp)