Date: Fri, 8 Feb 2002 12:09:06 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: obrien@freebsd.org Cc: freebsd-alpha@freebsd.org, peter@freebsd.org, jdp@freebsd.org Subject: more on recent current alpha rtld/binutils breakage. Message-ID: <15460.1586.888567.63521@grasshopper.cs.duke.edu>
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I've found that if one links ld-elf.so.1 with the new ld, then it
produces an ld-elf.so.1 which will SEGV all dynamic bins. However, if
you link it with the old ld, the resulting ld-elf.so.1 seems to work fine.
The SEGVs happen like this:
fatal user trap:
trap entry = 0x2 (memory management fault)
faulting va = 0x7540
type = access violation
cause = instruction fetch
pc = 0x7540
ra = 0x1600193a0
sp = 0xfffffe000b7d5e58
usp = 0x11fff6c0
curthread = 0xfffffe000b343760
pid = 232, comm = du
(gotta love using printtrap to debug userland code...)
0x7540 is the address of _rtld:
nm -n /usr/testworld/usr/libexec/ld-elf.so.1 | grep 7540
0000000000007540 T _rtld
0000000000007540 t gcc2_compiled.
I think this implies that either the kernel isn't setting up the map
correctly, or that the elf header is wrong & its not marked
executable.
_rtld seems to be in the text section:
5 .text 00012d20 0000000000007340 0000000000007340 00007340 2**5
I'm not sure I have enough elf fu to take this much further..
help?
Drew
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