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authorDavid S. Miller <davem@davemloft.net>2008-04-20 05:14:23 -0400
committerDavid S. Miller <davem@davemloft.net>2008-04-21 18:10:15 -0400
commitec98c6b9b47df6df1c1fa6cf3d427414f8c2cf16 (patch)
treeb144d907e47f8ade53296bd19850af708692386f /arch/sparc/kernel/entry.S
parent3925e6fc1f774048404fdd910b0345b06c699eb4 (diff)
[SPARC]: Remove SunOS and Solaris binary support.
As per Documentation/feature-removal-schedule.txt Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/entry.S')
-rw-r--r--arch/sparc/kernel/entry.S206
1 files changed, 11 insertions, 195 deletions
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index c2eed8f71516..135644f8add7 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1186,36 +1186,6 @@ srmmu_fault:
1186 1186
1187 RESTORE_ALL 1187 RESTORE_ALL
1188 1188
1189#ifdef CONFIG_SUNOS_EMUL
1190 /* SunOS uses syscall zero as the 'indirect syscall' it looks
1191 * like indir_syscall(scall_num, arg0, arg1, arg2...); etc.
1192 * This is complete brain damage.
1193 */
1194 .globl sunos_indir
1195sunos_indir:
1196 mov %o7, %l4
1197 cmp %o0, NR_SYSCALLS
1198 blu,a 1f
1199 sll %o0, 0x2, %o0
1200
1201 sethi %hi(sunos_nosys), %l6
1202 b 2f
1203 or %l6, %lo(sunos_nosys), %l6
1204
12051:
1206 set sunos_sys_table, %l7
1207 ld [%l7 + %o0], %l6
1208
12092:
1210 mov %o1, %o0
1211 mov %o2, %o1
1212 mov %o3, %o2
1213 mov %o4, %o3
1214 mov %o5, %o4
1215 call %l6
1216 mov %l4, %o7
1217#endif
1218
1219 .align 4 1189 .align 4
1220 .globl sys_nis_syscall 1190 .globl sys_nis_syscall
1221sys_nis_syscall: 1191sys_nis_syscall:
@@ -1232,6 +1202,16 @@ sys_execve:
1232 call sparc_execve 1202 call sparc_execve
1233 mov %l5, %o7 1203 mov %l5, %o7
1234 1204
1205 .globl sunos_execv
1206sunos_execv:
1207 st %g0, [%sp + STACKFRAME_SZ + PT_I2]
1208
1209 call sparc_execve
1210 add %sp, STACKFRAME_SZ, %o0
1211
1212 b ret_sys_call
1213 ld [%sp + STACKFRAME_SZ + PT_I0], %o0
1214
1235 .align 4 1215 .align 4
1236 .globl sys_pipe 1216 .globl sys_pipe
1237sys_pipe: 1217sys_pipe:
@@ -1394,7 +1374,7 @@ ret_from_fork:
1394 b ret_sys_call 1374 b ret_sys_call
1395 ld [%sp + STACKFRAME_SZ + PT_I0], %o0 1375 ld [%sp + STACKFRAME_SZ + PT_I0], %o0
1396 1376
1397 /* Linux native and SunOS system calls enter here... */ 1377 /* Linux native system calls enter here... */
1398 .align 4 1378 .align 4
1399 .globl linux_sparc_syscall 1379 .globl linux_sparc_syscall
1400linux_sparc_syscall: 1380linux_sparc_syscall:
@@ -1472,170 +1452,6 @@ linux_syscall_trace2:
1472 st %l2, [%sp + STACKFRAME_SZ + PT_NPC] 1452 st %l2, [%sp + STACKFRAME_SZ + PT_NPC]
1473 1453
1474 1454
1475 /*
1476 * Solaris system calls and indirect system calls enter here.
1477 *
1478 * I have named the solaris indirect syscalls like that because
1479 * it seems like Solaris has some fast path syscalls that can
1480 * be handled as indirect system calls. - mig
1481 */
1482
1483linux_syscall_for_solaris:
1484 sethi %hi(sys_call_table), %l7
1485 b linux_sparc_syscall
1486 or %l7, %lo(sys_call_table), %l7
1487
1488 .align 4
1489 .globl solaris_syscall
1490solaris_syscall:
1491 cmp %g1,59
1492 be linux_syscall_for_solaris
1493 cmp %g1,2
1494 be linux_syscall_for_solaris
1495 cmp %g1,42
1496 be linux_syscall_for_solaris
1497 cmp %g1,119
1498 be,a linux_syscall_for_solaris
1499 mov 2, %g1
15001:
1501 SAVE_ALL_HEAD
1502 rd %wim, %l3
1503
1504 wr %l0, PSR_ET, %psr
1505 nop
1506 nop
1507 mov %i0, %l5
1508
1509 call do_solaris_syscall
1510 add %sp, STACKFRAME_SZ, %o0
1511
1512 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
1513 set PSR_C, %g2
1514 cmp %o0, -ERESTART_RESTARTBLOCK
1515 bgeu 1f
1516 ld [%sp + STACKFRAME_SZ + PT_PSR], %g3
1517
1518 /* System call success, clear Carry condition code. */
1519 andn %g3, %g2, %g3
1520 clr %l6
1521 b 2f
1522 st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
1523
15241:
1525 /* System call failure, set Carry condition code.
1526 * Also, get abs(errno) to return to the process.
1527 */
1528 sub %g0, %o0, %o0
1529 mov 1, %l6
1530 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
1531 or %g3, %g2, %g3
1532 st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
1533
1534 /* Advance the pc and npc over the trap instruction.
1535 * If the npc is unaligned (has a 1 in the lower byte), it means
1536 * the kernel does not want us to play magic (ie, skipping over
1537 * traps). Mainly when the Solaris code wants to set some PC and
1538 * nPC (setcontext).
1539 */
15402:
1541 ld [%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
1542 andcc %l1, 1, %g0
1543 bne 1f
1544 add %l1, 0x4, %l2 /* npc = npc+4 */
1545 st %l1, [%sp + STACKFRAME_SZ + PT_PC]
1546 b ret_trap_entry
1547 st %l2, [%sp + STACKFRAME_SZ + PT_NPC]
1548
1549 /* kernel knows what it is doing, fixup npc and continue */
15501:
1551 sub %l1, 1, %l1
1552 b ret_trap_entry
1553 st %l1, [%sp + STACKFRAME_SZ + PT_NPC]
1554
1555#ifndef CONFIG_SUNOS_EMUL
1556 .align 4
1557 .globl sunos_syscall
1558sunos_syscall:
1559 SAVE_ALL_HEAD
1560 rd %wim, %l3
1561 wr %l0, PSR_ET, %psr
1562 nop
1563 nop
1564 mov %i0, %l5
1565 call do_sunos_syscall
1566 add %sp, STACKFRAME_SZ, %o0
1567#endif
1568
1569 /* {net, open}bsd system calls enter here... */
1570 .align 4
1571 .globl bsd_syscall
1572bsd_syscall:
1573 /* Direct access to user regs, must faster. */
1574 cmp %g1, NR_SYSCALLS
1575 blu,a 1f
1576 sll %g1, 2, %l4
1577
1578 set sys_ni_syscall, %l7
1579 b bsd_is_too_hard
1580 nop
1581
15821:
1583 ld [%l7 + %l4], %l7
1584
1585 .globl bsd_is_too_hard
1586bsd_is_too_hard:
1587 rd %wim, %l3
1588 SAVE_ALL
1589
1590 wr %l0, PSR_ET, %psr
1591 WRITE_PAUSE
1592
15932:
1594 mov %i0, %o0
1595 mov %i1, %o1
1596 mov %i2, %o2
1597 mov %i0, %l5
1598 mov %i3, %o3
1599 mov %i4, %o4
1600 call %l7
1601 mov %i5, %o5
1602
1603 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
1604 set PSR_C, %g2
1605 cmp %o0, -ERESTART_RESTARTBLOCK
1606 bgeu 1f
1607 ld [%sp + STACKFRAME_SZ + PT_PSR], %g3
1608
1609 /* System call success, clear Carry condition code. */
1610 andn %g3, %g2, %g3
1611 clr %l6
1612 b 2f
1613 st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
1614
16151:
1616 /* System call failure, set Carry condition code.
1617 * Also, get abs(errno) to return to the process.
1618 */
1619 sub %g0, %o0, %o0
1620#if 0 /* XXX todo XXX */
1621 sethi %hi(bsd_xlatb_rorl), %o3
1622 or %o3, %lo(bsd_xlatb_rorl), %o3
1623 sll %o0, 2, %o0
1624 ld [%o3 + %o0], %o0
1625#endif
1626 mov 1, %l6
1627 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
1628 or %g3, %g2, %g3
1629 st %g3, [%sp + STACKFRAME_SZ + PT_PSR]
1630
1631 /* Advance the pc and npc over the trap instruction. */
16322:
1633 ld [%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
1634 add %l1, 0x4, %l2 /* npc = npc+4 */
1635 st %l1, [%sp + STACKFRAME_SZ + PT_PC]
1636 b ret_trap_entry
1637 st %l2, [%sp + STACKFRAME_SZ + PT_NPC]
1638
1639/* Saving and restoring the FPU state is best done from lowlevel code. 1455/* Saving and restoring the FPU state is best done from lowlevel code.
1640 * 1456 *
1641 * void fpsave(unsigned long *fpregs, unsigned long *fsr, 1457 * void fpsave(unsigned long *fpregs, unsigned long *fsr,