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From: "cagney at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: frysk-bugzilla@sourceware.org
Subject: [Bug general/6599] New: don't align the load-address
Date: Thu, 05 Jun 2008 21:55:00 -0000 [thread overview]
Message-ID: <20080605215421.6599.cagney@redhat.com> (raw)
>From dwfl_module_getdwarf:
@@ -96,11 +100,18 @@ open_elf (Dwfl_Module *mod, struct dwfl_file *file)
goto elf_error;
if (ph->p_type == PT_LOAD)
{
- file->bias = ((mod->low_addr & -ph->p_align)
- - (ph->p_vaddr & -ph->p_align));
+ // Align the vaddr.
+ fprintf(stderr, "mod->low_addr 0x%lx\n", mod->low_addr);
+ fprintf(stderr, "ph->p_align 0x%lx\n", ph->p_align);
+ Dwarf_Addr vaddr = ph->p_vaddr & -ph->p_align;
+ fprintf(stderr, "vaddr 0x%lx\n", vaddr);
+ file->bias = (mod->low_addr - (ph->p_vaddr & -ph->p_align));
+ fprintf(stderr, "setting file bias to something complex 0x%lx\n",
+ file->bias);
break;
}
}
+ }
mod->e_type = ehdr->e_type;
for instance, an solib mapped at:
low 0x2aaab0508000 high 0x2aaab07dc000
with alignment 0x200000, will result in a bias of 0x2aaab0400000, when it should
just be the low address
--
Summary: don't align the load-address
Product: frysk
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: general
AssignedTo: frysk-bugzilla at sourceware dot org
ReportedBy: cagney at redhat dot com
OtherBugsDependingO 2785
nThis:
http://sourceware.org/bugzilla/show_bug.cgi?id=6599
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next reply other threads:[~2008-06-05 21:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-05 21:55 cagney at redhat dot com [this message]
2008-06-05 21:59 ` [Bug general/6599] " cagney at redhat dot com
2008-06-07 12:24 ` cagney at redhat dot com
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