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objtool: Warn on stripped section symbol

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commit 830c1e3d16b2c1733cd1ec9c8f4d47a398ae31bc

With the following fix:

  2a0098d70640 ("objtool: Fix seg fault with gold linker")

... a seg fault was avoided, but the original seg fault condition in
objtool wasn't fixed.  Replace the seg fault with an error message.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/dc4585a70d6b975c99fc51d1957ccdde7bd52f3a.1517284349.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Josh Poimboeuf 2018-01-29 22:00:41 -06:00 committed by Greg Kroah-Hartman
parent 3e04e09855
commit 23a4ca4e74
1 changed files with 5 additions and 0 deletions
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5
tools/objtool/orc_gen.c
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@ -98,6 +98,11 @@ static int create_orc_entry(struct section *u_sec, struct section *ip_relasec,
struct orc_entry *orc;
struct rela *rela;
if (!insn_sec->sym) {
WARN("missing symbol for section %s", insn_sec->name);
return -1;
}
/* populate ORC data */
orc = (struct orc_entry *)u_sec->data->d_buf + idx;
memcpy(orc, o, sizeof(*orc));