https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246322
Dimitry Andric <d...@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |d...@freebsd.org
--- Comment #3 from Dimitry Andric <d...@freebsd.org> ---
As emaste noted, it looks exactly like this very old DragonFly issue:
https://bugs.dragonflybsd.org/issues/2511. The workaround they used eventually
was to compile the crt objects with -fno-asynchronous-unwind-tables.
But this is very likely a ld.bfd bug, as there seems to be nothing wrong with
the .eh_frame section in crt1.o. Dwarfdump gives me:
.eh_frame
fde:
< 0><0x00000020:0x00000039><_fini><cie offset 0x0000001c::cie index
0><fde offset 0x00000018 length: 0x00000018>
<eh aug data len 0x0>
0x00000020: <off cfa=04(r4) > <off r8=-4(cfa) >
0x00000023: <off cfa=04(r4) > <off r8=-4(cfa) >
0x00000025: <off cfa=04(r5) > <off r5=-8(cfa) > <off r8=-4(cfa) >
< 1><0x00000074:0x000001a3><><cie offset 0x0000001c::cie index 1><fde
offset 0x0000004c length: 0x0000001c>
<eh aug data len 0x0>
0x00000074: <off cfa=04(r4) > <off r8=-4(cfa) >
0x00000075: <off cfa=08(r4) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x00000077: <off cfa=08(r5) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x0000007d: <off cfa=08(r5) > <off r3=-12(cfa) > <off r5=-8(cfa) > <off
r6=-20(cfa) > <off r7=-16(cfa) > <off r8=-4(cfa) >
< 2><0x000001c4:0x00000297><><cie offset 0x0000003c::cie index 1><fde
offset 0x0000006c length: 0x00000024>
<eh aug data len 0x0>
0x000001c4: <off cfa=04(r4) > <off r8=-4(cfa) >
0x000001c5: <off cfa=08(r4) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x000001c7: <off cfa=08(r5) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x000001cd: <off cfa=08(r5) > <off r3=-12(cfa) > <off r5=-8(cfa) > <off
r6=-20(cfa) > <off r7=-16(cfa) > <off r8=-4(cfa) >
0x00000296: <off cfa=04(r4) > <off r3=-12(cfa) > <off r5=-8(cfa) > <off
r6=-20(cfa) > <off r7=-16(cfa) > <off r8=-4(cfa) >
< 3><0x000002cc:0x00000311><><cie offset 0x00000064::cie index 1><fde
offset 0x00000094 length: 0x00000020>
<eh aug data len 0x0>
0x000002cc: <off cfa=04(r4) > <off r8=-4(cfa) >
0x000002cd: <off cfa=08(r4) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x000002cf: <off cfa=08(r5) > <off r5=-8(cfa) > <off r8=-4(cfa) >
0x000002d0: <off cfa=08(r5) > <off r5=-8(cfa) > <off r6=-12(cfa) > <off
r8=-4(cfa) >
0x000002ed: <off cfa=04(r4) > <off r5=-8(cfa) > <off r6=-12(cfa) > <off
r8=-4(cfa) >
0x000002f2: <off cfa=08(r5) > <off r5=-8(cfa) > <off r6=-12(cfa) > <off
r8=-4(cfa) >
cie:
< 0> version 1
cie section offset 0 0x00000000
augmentation zR
code_alignment_factor 1
data_alignment_factor -4
return_address_register 8
eh aug data len 0x1 bytes 0x1b
bytes of initial instructions 7
cie length 20
initial instructions
0 DW_CFA_def_cfa r4 4
3 DW_CFA_offset r8 -4
5 DW_CFA_nop
6 DW_CFA_nop
< 1> version 1
cie section offset 52 0x00000034
augmentation zR
code_alignment_factor 1
data_alignment_factor -4
return_address_register 8
eh aug data len 0x1 bytes 0x1b
bytes of initial instructions 7
cie length 20
initial instructions
0 DW_CFA_def_cfa r4 4
3 DW_CFA_offset r8 -4
5 DW_CFA_nop
6 DW_CFA_nop
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