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-rw-r--r--arch/parisc/kernel/entry.S95
-rw-r--r--include/asm-parisc/linkage.h20
2 files changed, 63 insertions, 52 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 67dda1b0d6d..cec65323d21 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -37,6 +37,8 @@
#include <asm/unistd.h>
#include <asm/thread_info.h>
+#include <linux/linkage.h>
+
#ifdef CONFIG_64BIT
#define CMPIB cmpib,*
#define CMPB cmpb,*
@@ -648,13 +650,11 @@
* the static part of the kernel address space.
*/
- .export fault_vector_20
-
.text
.align 4096
-fault_vector_20:
+ENTRY(fault_vector_20)
/* First vector is invalid (0) */
.ascii "cows can fly"
.byte 0
@@ -695,14 +695,13 @@ fault_vector_20:
def 29
def 30
def 31
+END(fault_vector_20)
#ifndef CONFIG_64BIT
- .export fault_vector_11
-
.align 2048
-fault_vector_11:
+ENTRY(fault_vector_11)
/* First vector is invalid (0) */
.ascii "cows can fly"
.byte 0
@@ -743,6 +742,7 @@ fault_vector_11:
def 29
def 30
def 31
+END(fault_vector_11)
#endif
@@ -762,9 +762,8 @@ fault_vector_11:
#define CLONE_VM 0x100 /* Must agree with <linux/sched.h> */
#define CLONE_UNTRACED 0x00800000
- .export __kernel_thread, code
.import do_fork
-__kernel_thread:
+ENTRY(__kernel_thread)
STREG %r2, -RP_OFFSET(%r30)
copy %r30, %r1
@@ -797,6 +796,7 @@ __kernel_thread:
ldo -PT_SZ_ALGN(%r30), %r30
bv %r0(%r2)
nop
+ENDPROC(__kernel_thread)
/*
* Child Returns here
@@ -805,8 +805,7 @@ __kernel_thread:
* into task save area.
*/
- .export ret_from_kernel_thread
-ret_from_kernel_thread:
+ENTRY(ret_from_kernel_thread)
/* Call schedule_tail first though */
BL schedule_tail, %r2
@@ -833,10 +832,10 @@ ret_from_kernel_thread:
bv %r0(%r1)
#endif
ldi 0, %r26
+ENDPROC(ret_from_kernel_thread)
.import sys_execve, code
- .export __execve, code
-__execve:
+ENTRY(__execve)
copy %r2, %r15
copy %r30, %r16
ldo PT_SZ_ALGN(%r30), %r30
@@ -856,16 +855,15 @@ __execve:
copy %r16, %r30
bv %r0(%r2)
nop
+ENDPROC(__execve)
- .align 4
/*
* struct task_struct *_switch_to(struct task_struct *prev,
* struct task_struct *next)
*
* switch kernel stacks and return prev */
- .export _switch_to, code
-_switch_to:
+ENTRY(_switch_to)
STREG %r2, -RP_OFFSET(%r30)
callee_save_float
@@ -890,6 +888,7 @@ _switch_to_ret:
LDREG -RP_OFFSET(%r30), %r2
bv %r0(%r2)
copy %r26, %r28
+ENDPROC(_switch_to)
/*
* Common rfi return path for interruptions, kernel execve, and
@@ -907,8 +906,7 @@ _switch_to_ret:
.align 4096
- .export syscall_exit_rfi
-syscall_exit_rfi:
+ENTRY(syscall_exit_rfi)
mfctl %cr30,%r16
LDREG TI_TASK(%r16), %r16 /* thread_info -> task_struct */
ldo TASK_REGS(%r16),%r16
@@ -1140,13 +1138,12 @@ intr_extint:
b do_cpu_irq_mask
ldo R%intr_return(%r2), %r2 /* return to intr_return, not here */
+ENDPROC(syscall_exit_rfi)
/* Generic interruptions (illegal insn, unaligned, page fault, etc) */
- .export intr_save, code /* for os_hpmc */
-
-intr_save:
+ENTRY(intr_save) /* for os_hpmc */
mfsp %sr7,%r16
CMPIB=,n 0,%r16,1f
get_stack_use_cr30
@@ -1221,6 +1218,7 @@ skip_save_ior:
b handle_interruption
ldo R%intr_check_sig(%r2), %r2
+ENDPROC(intr_save)
/*
@@ -1806,9 +1804,7 @@ dtlb_fault:
LDREG PT_GR18(\regs),%r18
.endm
- .export sys_fork_wrapper
- .export child_return
-sys_fork_wrapper:
+ENTRY(sys_fork_wrapper)
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
ldo TASK_REGS(%r1),%r1
reg_save %r1
@@ -1845,9 +1841,10 @@ wrapper_exit:
ldi __NR_fork,%r20
bv %r0(%r2)
STREG %r20,PT_GR20(%r1)
+ENDPROC(sys_fork_wrapper)
/* Set the return value for the child */
-child_return:
+ENTRY(child_return)
BL schedule_tail, %r2
nop
@@ -1855,10 +1852,10 @@ child_return:
LDREG TASK_PT_GR19(%r1),%r2
b wrapper_exit
copy %r0,%r28
+ENDPROC(child_return)
-
- .export sys_clone_wrapper
-sys_clone_wrapper:
+
+ENTRY(sys_clone_wrapper)
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
ldo TASK_REGS(%r1),%r1 /* get pt regs */
reg_save %r1
@@ -1879,9 +1876,10 @@ sys_clone_wrapper:
b wrapper_exit
LDREG -RP_OFFSET-FRAME_SIZE(%r30),%r2
+ENDPROC(sys_clone_wrapper)
- .export sys_vfork_wrapper
-sys_vfork_wrapper:
+
+ENTRY(sys_vfork_wrapper)
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
ldo TASK_REGS(%r1),%r1 /* get pt regs */
reg_save %r1
@@ -1902,6 +1900,7 @@ sys_vfork_wrapper:
b wrapper_exit
LDREG -RP_OFFSET-FRAME_SIZE(%r30),%r2
+ENDPROC(sys_vfork_wrapper)
.macro execve_wrapper execve
@@ -1938,22 +1937,19 @@ error_\execve:
nop
.endm
- .export sys_execve_wrapper
.import sys_execve
-
-sys_execve_wrapper:
+ENTRY(sys_execve_wrapper)
execve_wrapper sys_execve
+ENDPROC(sys_execve_wrapper)
#ifdef CONFIG_64BIT
- .export sys32_execve_wrapper
.import sys32_execve
-
-sys32_execve_wrapper:
+ENTRY(sys32_execve_wrapper)
execve_wrapper sys32_execve
+ENDPROC(sys32_execve_wrapper)
#endif
- .export sys_rt_sigreturn_wrapper
-sys_rt_sigreturn_wrapper:
+ENTRY(sys_rt_sigreturn_wrapper)
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26
ldo TASK_REGS(%r26),%r26 /* get pt regs */
/* Don't save regs, we are going to restore them from sigcontext. */
@@ -1981,9 +1977,9 @@ sys_rt_sigreturn_wrapper:
*/
bv %r0(%r2)
LDREG PT_GR28(%r1),%r28 /* reload original r28 for syscall_exit */
+ENDPROC(sys_rt_sigreturn_wrapper)
- .export sys_sigaltstack_wrapper
-sys_sigaltstack_wrapper:
+ENTRY(sys_sigaltstack_wrapper)
/* Get the user stack pointer */
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
ldo TASK_REGS(%r1),%r24 /* get pt regs */
@@ -2002,10 +1998,10 @@ sys_sigaltstack_wrapper:
LDREG -RP_OFFSET(%r30), %r2
bv %r0(%r2)
nop
+ENDPROC(sys_sigaltstack_wrapper)
#ifdef CONFIG_64BIT
- .export sys32_sigaltstack_wrapper
-sys32_sigaltstack_wrapper:
+ENTRY(sys32_sigaltstack_wrapper)
/* Get the user stack pointer */
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r24
LDREG TASK_PT_GR30(%r24),%r24
@@ -2018,11 +2014,10 @@ sys32_sigaltstack_wrapper:
LDREG -RP_OFFSET(%r30), %r2
bv %r0(%r2)
nop
+ENDPROC(sys32_sigaltstack_wrapper)
#endif
- .export syscall_exit
-syscall_exit:
-
+ENTRY(syscall_exit)
/* NOTE: HP-UX syscalls also come through here
* after hpux_syscall_exit fixes up return
* values. */
@@ -2251,7 +2246,10 @@ syscall_do_resched:
#endif
b syscall_check_bh /* if resched, we start over again */
nop
+ENDPROC(syscall_exit)
+
+ENTRY(get_register)
/*
* get_register is used by the non access tlb miss handlers to
* copy the value of the general register specified in r8 into
@@ -2262,8 +2260,6 @@ syscall_do_resched:
* a -1 in it, but that is OK, it just means that we will have
* to use the slow path instead).
*/
-
-get_register:
blr %r8,%r0
nop
bv %r0(%r25) /* r0 */
@@ -2330,14 +2326,15 @@ get_register:
copy %r30,%r1
bv %r0(%r25) /* r31 */
copy %r31,%r1
+ENDPROC(get_register)
+
+ENTRY(set_register)
/*
* set_register is used by the non access tlb miss handlers to
* copy the value of r1 into the general register specified in
* r8.
*/
-
-set_register:
blr %r8,%r0
nop
bv %r0(%r25) /* r0 (silly, but it is a place holder) */
@@ -2404,3 +2401,5 @@ set_register:
copy %r1,%r30
bv %r0(%r25) /* r31 */
copy %r1,%r31
+ENDPROC(set_register)
+
diff --git a/include/asm-parisc/linkage.h b/include/asm-parisc/linkage.h
index 291c2d01c44..9df3978f8a9 100644
--- a/include/asm-parisc/linkage.h
+++ b/include/asm-parisc/linkage.h
@@ -1,6 +1,18 @@
-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
-
-/* Nothing to see here... */
+#ifndef __ASM_PARISC_LINKAGE_H
+#define __ASM_PARISC_LINKAGE_H
+#ifndef __ALIGN
+#define __ALIGN .align 4
+#define __ALIGN_STR ".align 4"
#endif
+
+/*
+ * In parisc assembly a semicolon marks a comment.
+ * Because of that we use an exclamation mark to seperate independend lines.
+ */
+#define ENTRY(name) \
+ .globl name !\
+ ALIGN !\
+name:
+
+#endif /* __ASM_PARISC_LINKAGE_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 05:50:11 +0000