https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106581
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Component|libstdc++ |target
--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Lance Fredrickson from comment #10)
> (gdb) disassemble 0x7fb7eae3b8
> Dump of assembler code for function (anonymous namespace)::get_global():
> 0x0000007fb7eae3b8 <+0>: stp x29, x30, [sp, #-16]!
> 0x0000007fb7eae3bc <+4>: mov x29, sp
> 0x0000007fb7eae3c0 <+8>: adrp x0, 0x7fb7fe3000
> <_znst15basic_stringbuficst11char_traitsicesaicee15_m_update_egpt...@got.plt>
> 0x0000007fb7eae3c4 <+12>: ldr x1, [x0, #3248]
> 0x0000007fb7eae3c8 <+16>: add x0, x0, #0xcb0
> 0x0000007fb7eae3cc <+20>: blr x1
> 0x0000007fb7eae3d0 <+24>: mrs x1, tpidr_el0
> 0x0000007fb7eae3d4 <+28>: add x0, x1, x0
> 0x0000007fb7eae3d8 <+32>: ldp x29, x30, [sp], #16
> 0x0000007fb7eae3dc <+36>: ret
> End of assembler dump.
That looks correct.
It is basically:
adrp x0, :tlsdesc:a
ldr x1, [x0, #:tlsdesc_lo12:a]
add x0, x0, :tlsdesc_lo12:a
.tlsdesccall a
blr x1
mrs x1, tpidr_el0
add x0, x1, x0
So now this is looking more and more like an uclibc issue rather a
GCC/libstdc++ one.
Have you reported it to them yet?
