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Re: run-elflint-self.sh fails on alpha
- From: Richard Henderson <rth at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Wed, 09 Mar 2011 12:03:19 +1100
- Subject: Re: run-elflint-self.sh fails on alpha
On 03/09/2011 11:17 AM, Roland McGrath wrote:
>> section [ 5] '.dynsym': symbol 61: unknown bit set in st_other
>> section [ 5] '.dynsym': symbol 64: unknown bit set in st_other
>> section [28] '.symtab': symbol 27: unknown bit set in st_other
>> section [28] '.symtab': symbol 34: unknown bit set in st_other
>> section [28] '.symtab': symbol 35: unknown bit set in st_other
>> section [28] '.symtab': symbol 36: unknown bit set in st_other
>> section [28] '.symtab': symbol 37: unknown bit set in st_other
>> section [28] '.symtab': symbol 38: unknown bit set in st_other
>> section [28] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol value 0x120014010 does not match .got section address 0x120014000
>
> These indicate either bugs in the compilation tools (probably ld) or else
> machine-specific oddities that the elfutils backend library for alpha needs
> to be taught to allow.
The later. From <elf.h>:
/* Legal values for st_other field of Elf64_Sym. */
#define STO_ALPHA_NOPV 0x80 /* No PV required. */
#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */
As for the _G_O_T_ symbol value, there's no reason for the value to even
be within the .got section; the value may be offset by +- 32k to aid
indexing. Further, Alpha supports multiple .got subsections, such that
_G_O_T_ does not represent a global value across the entire DSO.
Honestly there's no reason to check this on Alpha.
r~