155 lines
3.0 KiB
ArmAsm
155 lines
3.0 KiB
ArmAsm
#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)
|