aboutsummaryrefslogtreecommitdiff
path: root/arch/m68knommu/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu/kernel')
-rw-r--r--arch/m68knommu/kernel/m68k_ksyms.c4
-rw-r--r--arch/m68knommu/kernel/process.c51
-rw-r--r--arch/m68knommu/kernel/ptrace.c2
-rw-r--r--arch/m68knommu/kernel/setup.c2
-rw-r--r--arch/m68knommu/kernel/signal.c8
-rw-r--r--arch/m68knommu/kernel/vmlinux.lds.S2
6 files changed, 12 insertions, 57 deletions
diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c
index e93a5ad5649..eddb8d3e130 100644
--- a/arch/m68knommu/kernel/m68k_ksyms.c
+++ b/arch/m68knommu/kernel/m68k_ksyms.c
@@ -18,7 +18,6 @@
#include <asm/checksum.h>
#include <asm/current.h>
-extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
/* platform dependent support */
@@ -26,7 +25,6 @@ extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
EXPORT_SYMBOL(__ioremap);
EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(strnlen);
EXPORT_SYMBOL(strrchr);
EXPORT_SYMBOL(strstr);
@@ -38,8 +36,6 @@ EXPORT_SYMBOL(strncmp);
EXPORT_SYMBOL(ip_fast_csum);
-EXPORT_SYMBOL(mach_enable_irq);
-EXPORT_SYMBOL(mach_disable_irq);
EXPORT_SYMBOL(kernel_thread);
/* Networking helper routines. */
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 82e7ec88880..99bf4382479 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -198,10 +198,9 @@ int copy_thread(int nr, unsigned long clone_flags,
{
struct pt_regs * childregs;
struct switch_stack * childstack, *stack;
- unsigned long stack_offset, *retp;
+ unsigned long *retp;
- stack_offset = THREAD_SIZE - sizeof(struct pt_regs);
- childregs = (struct pt_regs *) ((unsigned long) p->thread_info + stack_offset);
+ childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
*childregs = *regs;
childregs->d0 = 0;
@@ -276,52 +275,6 @@ int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu)
}
/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
- struct switch_stack *sw;
-
- /* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
- dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
- dump->u_dsize = ((unsigned long) (current->mm->brk +
- (PAGE_SIZE-1))) >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
-
- if (dump->start_stack < TASK_SIZE)
- dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
- dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump);
- sw = ((struct switch_stack *)regs) - 1;
- dump->regs.d1 = regs->d1;
- dump->regs.d2 = regs->d2;
- dump->regs.d3 = regs->d3;
- dump->regs.d4 = regs->d4;
- dump->regs.d5 = regs->d5;
- dump->regs.d6 = sw->d6;
- dump->regs.d7 = sw->d7;
- dump->regs.a0 = regs->a0;
- dump->regs.a1 = regs->a1;
- dump->regs.a2 = regs->a2;
- dump->regs.a3 = sw->a3;
- dump->regs.a4 = sw->a4;
- dump->regs.a5 = sw->a5;
- dump->regs.a6 = sw->a6;
- dump->regs.d0 = regs->d0;
- dump->regs.orig_d0 = regs->orig_d0;
- dump->regs.stkadj = regs->stkadj;
- dump->regs.sr = regs->sr;
- dump->regs.pc = regs->pc;
- dump->regs.fmtvec = (regs->format << 12) | regs->vector;
- /* dump floating point stuff */
- dump->u_fpvalid = dump_fpu (regs, &dump->m68kfp);
-}
-
-/*
* Generic dumping code. Used for panic and debug.
*/
void dump(struct pt_regs *fp)
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 262ab8c72e5..382ca5797b9 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -101,7 +101,7 @@ void ptrace_disable(struct task_struct *child)
put_reg(child, PT_SR, tmp);
}
-long arch_ptrace(truct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
int ret;
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c
index abb80fa2b94..93120b9bfff 100644
--- a/arch/m68knommu/kernel/setup.c
+++ b/arch/m68knommu/kernel/setup.c
@@ -65,8 +65,6 @@ void (*mach_kbd_leds) (unsigned int) = NULL;
/* machine dependent irq functions */
void (*mach_init_IRQ) (void) = NULL;
irqreturn_t (*(*mach_default_handler)[]) (int, void *, struct pt_regs *) = NULL;
-void (*mach_enable_irq) (unsigned int) = NULL;
-void (*mach_disable_irq) (unsigned int) = NULL;
int (*mach_get_irq_list) (struct seq_file *, void *) = NULL;
void (*mach_process_int) (int irq, struct pt_regs *fp) = NULL;
void (*mach_trap_init) (void);
diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c
index 43a2726c0d0..e1b3aa39e27 100644
--- a/arch/m68knommu/kernel/signal.c
+++ b/arch/m68knommu/kernel/signal.c
@@ -285,6 +285,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc, void *fp,
regs->d1 = context.sc_d1;
regs->a0 = context.sc_a0;
regs->a1 = context.sc_a1;
+ ((struct switch_stack *)regs - 1)->a5 = context.sc_a5;
regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff);
regs->pc = context.sc_pc;
regs->orig_d0 = -1; /* disable syscall checks */
@@ -498,6 +499,7 @@ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
sc->sc_d1 = regs->d1;
sc->sc_a0 = regs->a0;
sc->sc_a1 = regs->a1;
+ sc->sc_a5 = ((struct switch_stack *)regs - 1)->a5;
sc->sc_sr = regs->sr;
sc->sc_pc = regs->pc;
sc->sc_formatvec = regs->format << 12 | regs->vector;
@@ -597,6 +599,9 @@ static void setup_frame (int sig, struct k_sigaction *ka,
/* Set up registers for signal handler */
wrusp ((unsigned long) frame);
regs->pc = (unsigned long) ka->sa.sa_handler;
+ ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data;
+ regs->format = 0x4; /*set format byte to make stack appear modulo 4
+ which it will be when doing the rte */
adjust_stack:
/* Prepare to skip over the extra stuff in the exception frame. */
@@ -664,6 +669,9 @@ static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
/* Set up registers for signal handler */
wrusp ((unsigned long) frame);
regs->pc = (unsigned long) ka->sa.sa_handler;
+ ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data;
+ regs->format = 0x4; /*set format byte to make stack appear modulo 4
+ which it will be when doing the rte */
adjust_stack:
/* Prepare to skip over the extra stuff in the exception frame. */
diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index 0eab92ca4b9..ac9de2661c0 100644
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -129,7 +129,7 @@
*/
#if defined(CONFIG_M5208EVB)
#define RAM_START 0x40020000
-#define RAM_LENGTH 0x01e00000
+#define RAM_LENGTH 0x01fe0000
#endif
/*
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-04 10:15:11 +0000