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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:15 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:15 +0000
commit68c1b0995e963349e50f8a8b00ebc140908f7882 (patch)
treeae3788542761985ee15e3d1ca439706040d1eb0c /arch/alpha
parentReleasing progress-linux version 4.19.269-1progress5u1. (diff)
downloadlinux-68c1b0995e963349e50f8a8b00ebc140908f7882.tar.xz
linux-68c1b0995e963349e50f8a8b00ebc140908f7882.zip
Merging upstream version 4.19.282.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/kernel/entry.S4
-rw-r--r--arch/alpha/kernel/module.c4
-rw-r--r--arch/alpha/kernel/traps.c36
-rw-r--r--arch/alpha/mm/fault.c2
4 files changed, 23 insertions, 23 deletions
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index c64806a2d..ebe52200a 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -469,8 +469,10 @@ entSys:
#ifdef CONFIG_AUDITSYSCALL
lda $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
and $3, $6, $3
-#endif
bne $3, strace
+#else
+ blbs $3, strace /* check for SYSCALL_TRACE in disguise */
+#endif
beq $4, 1f
ldq $27, 0($5)
1: jsr $26, ($27), alpha_ni_syscall
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 47632fa8c..b169dc9a9 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -158,10 +158,8 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
base = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr;
symtab = (Elf64_Sym *)sechdrs[symindex].sh_addr;
- /* The small sections were sorted to the end of the segment.
- The following should definitely cover them. */
- gp = (u64)me->core_layout.base + me->core_layout.size - 0x8000;
got = sechdrs[me->arch.gotsecindex].sh_addr;
+ gp = got + 0x8000;
for (i = 0; i < n; i++) {
unsigned long r_sym = ELF64_R_SYM (rela[i].r_info);
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index bc9627698..e2c96f309 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -192,7 +192,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
local_irq_enable();
while (1);
}
- do_exit(SIGSEGV);
+ make_task_dead(SIGSEGV);
}
#ifndef CONFIG_MATHEMU
@@ -235,7 +235,21 @@ do_entIF(unsigned long type, struct pt_regs *regs)
{
int signo, code;
- if ((regs->ps & ~IPL_MAX) == 0) {
+ if (type == 3) { /* FEN fault */
+ /* Irritating users can call PAL_clrfen to disable the
+ FPU for the process. The kernel will then trap in
+ do_switch_stack and undo_switch_stack when we try
+ to save and restore the FP registers.
+
+ Given that GCC by default generates code that uses the
+ FP registers, PAL_clrfen is not useful except for DoS
+ attacks. So turn the bleeding FPU back on and be done
+ with it. */
+ current_thread_info()->pcb.flags |= 1;
+ __reload_thread(&current_thread_info()->pcb);
+ return;
+ }
+ if (!user_mode(regs)) {
if (type == 1) {
const unsigned int *data
= (const unsigned int *) regs->pc;
@@ -368,20 +382,6 @@ do_entIF(unsigned long type, struct pt_regs *regs)
}
break;
- case 3: /* FEN fault */
- /* Irritating users can call PAL_clrfen to disable the
- FPU for the process. The kernel will then trap in
- do_switch_stack and undo_switch_stack when we try
- to save and restore the FP registers.
-
- Given that GCC by default generates code that uses the
- FP registers, PAL_clrfen is not useful except for DoS
- attacks. So turn the bleeding FPU back on and be done
- with it. */
- current_thread_info()->pcb.flags |= 1;
- __reload_thread(&current_thread_info()->pcb);
- return;
-
case 5: /* illoc */
default: /* unexpected instruction-fault type */
;
@@ -577,7 +577,7 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
pc, va, opcode, reg);
- do_exit(SIGSEGV);
+ make_task_dead(SIGSEGV);
got_exception:
/* Ok, we caught the exception, but we don't want it. Is there
@@ -632,7 +632,7 @@ got_exception:
local_irq_enable();
while (1);
}
- do_exit(SIGSEGV);
+ make_task_dead(SIGSEGV);
}
/*
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 188fc9256..6ce67b054 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -206,7 +206,7 @@ retry:
printk(KERN_ALERT "Unable to handle kernel paging request at "
"virtual address %016lx\n", address);
die_if_kernel("Oops", regs, cause, (unsigned long*)regs - 16);
- do_exit(SIGKILL);
+ make_task_dead(SIGKILL);
/* We ran out of memory, or some other thing happened to us that
made us unable to handle the page fault gracefully. */