[Crash-utility] Strip llvm text symbol name ending

[赵乾利]

Hi

I found an issue when the kernel build by LLVM,many symbol missing,such as irq_desc_tree,causes irq -s command execution failed ,so i add llvm to strip_symbol_end:

Issue fix after applying the patch

crash> irq -s
           CPU0       CPU1       CPU2       CPU3       CPU4       CPU5       CPU6       CPU7
irq: neither irq_desc, _irq_desc, irq_desc_ptrs or irq_desc_tree symbols exist

crash> sym irq_desc_tree
symbol not found: irq_desc_tree
possible alternatives:
  ffffffd44bcbbf60 (d) irq_desc_tree.llvm.7481403593665956221

diff --git a/symbols.c b/symbols.c
index 449d6d4..3b1f08a 100644
--- a/symbols.c
+++ b/symbols.c
@@ -540,30 +540,28 @@ get_text_init_space(void)
 static char *
 strip_symbol_end(const char *name, char *buf)
 {
+       int i;
        char *p;
+       char *strip[] = {
+               ".isra.",
+               ".part.",
+               ".llvm.",
+               NULL
+       };

        if (st->flags & NO_STRIP)
                return (char *)name;

-       if ((p = strstr(name, ".isra."))) {
-               if (buf) {
-                       strcpy(buf, name);
-                       buf[p-name] = NULLCHAR;
-                       return buf;
-               } else {
-                       *p = NULLCHAR;
-                       return (char *)name;
-               }
-       }
-
-       if ((p = strstr(name, ".part."))) {
-               if (buf) {
-                       strcpy(buf, name);
-                       buf[p-name] = NULLCHAR;
-                       return buf;
-               } else {
-                       *p = NULLCHAR;
-                       return (char *)name;
+       for (i = 0; strip[i]; i++) {
+               if ((p = strstr(name, strip[i]))) {
+                       if (buf) {
+                               strcpy(buf, name);
+                               buf[p-name] = NULLCHAR;
+                               return buf;
+                       } else {
+                               *p = NULLCHAR;
+                               return (char *)name;
+                       }
                }
        }​





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