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From: Keith Owens <kaos@sgi.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@osdl.org
Subject: [patch 2.6.10-rc1] Include useful absolute symbols in kallsyms
Date: Fri, 29 Oct 2004 19:37:01 +1000	[thread overview]
Message-ID: <19397.1099042621@kao2.melbourne.sgi.com> (raw)

Some absolute symbols are useful, they can even appear in back traces.
Tweak kallsyms to retain the useful absolute symbols.

Signed-off-by: Keith Owens <kaos@sgi.com>

---

This list is from ia64, add absolute symbols from other architectures
as required.

Index: linux/scripts/kallsyms.c
===================================================================
--- linux.orig/scripts/kallsyms.c	Fri Oct 29 17:01:13 2004
+++ linux/scripts/kallsyms.c	Fri Oct 29 18:31:05 2004
@@ -121,7 +121,14 @@ read_symbol(FILE *in, struct sym_entry *
 		_sinittext = s->addr;
 	else if (strcmp(str, "_einittext") == 0)
 		_einittext = s->addr;
-	else if (toupper(s->type) == 'A' || toupper(s->type) == 'U')
+	else if (toupper(s->type) == 'A') {
+		/* Keep these useful absolute symbols */
+		if (strcmp(str, "__kernel_syscall_via_break") &&
+		    strcmp(str, "__kernel_syscall_via_epc") &&
+		    strcmp(str, "__kernel_sigtramp") &&
+		    strcmp(str, "__gp"))
+			return -1;
+	} else if (toupper(s->type) == 'U')
 		return -1;
 
 	/* include the type field in the symbol name, so that it gets


             reply	other threads:[~2004-10-29  9:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-29  9:37 Keith Owens [this message]
2004-10-30 23:15 ` Sam Ravnborg

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