[Crash-utility] [PATCH] Remove __exception_text_start and __exception_text_end for ARM64

[Prabhakar Kushwaha]

__exception_text_start and __exception_text_end is used to group functions
and place according to linker script in such a way to achieve
kprobe blacklist. commit b6e43c0e3129 ("arm64: remove __exception
annotations") has removed __exception_text_start and
__exception_text_end and uses NOKPROBE_SYMBOL() for blacklist kprobes.

So removing references of __exception_text_start and __exception_text_end
for ARM64.

Signed-off-by: Prabhakar Kushwaha <pkushwaha at marvell.com>
---
 arm64.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arm64.c b/arm64.c
index 1b024a4..56ec088 100644
--- a/arm64.c
+++ b/arm64.c
@@ -673,8 +673,6 @@ arm64_dump_machdep_table(ulong arg)
 		fprintf(fp, "        kimage_voffset: %016lx\n", ms->kimage_voffset);
 	}
 	fprintf(fp, "           phys_offset: %lx\n", ms->phys_offset);
-	fprintf(fp, "__exception_text_start: %lx\n", ms->__exception_text_start);
-	fprintf(fp, "  __exception_text_end: %lx\n", ms->__exception_text_end);
 	fprintf(fp, " __irqentry_text_start: %lx\n", ms->__irqentry_text_start);
 	fprintf(fp, "   __irqentry_text_end: %lx\n", ms->__irqentry_text_end);
 	fprintf(fp, "      exp_entry1_start: %lx\n", ms->exp_entry1_start);
@@ -1644,10 +1642,6 @@ arm64_stackframe_init(void)
 		machdep->machspec->kern_eframe_offset = SIZE(pt_regs);
 	}
 
-	machdep->machspec->__exception_text_start = 
-		symbol_value("__exception_text_start");
-	machdep->machspec->__exception_text_end = 
-		symbol_value("__exception_text_end");
 	if ((sp1 = kernel_symbol_search("__irqentry_text_start")) &&
 	    (sp2 = kernel_symbol_search("__irqentry_text_end"))) {
 		machdep->machspec->__irqentry_text_start = sp1->value; 
@@ -1861,9 +1855,7 @@ arm64_in_exception_text(ulong ptr)
 {
 	struct machine_specific *ms = machdep->machspec;
 
-	if ((ptr >= ms->__exception_text_start) &&
-	    (ptr < ms->__exception_text_end))
-		return TRUE;
+	return TRUE;
 
 	if (ms->__irqentry_text_start && ms->__irqentry_text_end &&
 	    ((ptr >= ms->__irqentry_text_start) && 
-- 
2.17.1