https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120653
--- Comment #17 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Jakub Jelinek from comment #14) > Seems _dl_start_final is in this configuration inlined into _dl_start and > the important difference is (-fstrict-aliasing to -fno-strict-aliasing): > @@ -1206,11 +1207,8 @@ _dl_start: > pushq %rbp > .cfi_def_cfa_offset 16 > .cfi_offset 6, -16 > - leaq __ehdr_start(%rip), %rsi This doesn't need run-time relocation. > leaq _end(%rip), %rax > - movq %rsi, %xmm2 > movq %rax, %xmm3 > - punpcklqdq %xmm3, %xmm2 > movq %rsp, %rbp > .cfi_def_cfa_register 6 > pushq %r15 > @@ -1225,214 +1223,176 @@ _dl_start: > .cfi_offset 12, -48 > .cfi_offset 3, -56 > movq %rdi, -136(%rbp) > + movq .LC31(%rip), %xmm2 > + punpcklqdq %xmm3, %xmm2 > movaps %xmm2, -128(%rbp) > rdtsc > + leaq __ehdr_start(%rip), %rdi > andb $-33, 854+_dl_rtld_map(%rip) > - leaq 64+_dl_rtld_map(%rip), %rcx > - movl $1879048191, %r8d > - movl $1879048233, %r9d > + movq %rdi, _dl_rtld_map(%rip) > salq $32, %rdx > - movq %rsi, _dl_rtld_map(%rip) > orq %rdx, %rax > leaq _DYNAMIC(%rip), %rdx > movq %rax, start_time(%rip) > movq _DYNAMIC(%rip), %rax > ... > @@ -6289,9 +6296,13 @@ _rtld_global_ro: > .globl _rtld_local_ro > .hidden _rtld_local_ro > .set _rtld_local_ro,_rtld_global_ro > + .section .data.rel.ro.local > + .align 8 > +.LC31: > + .quad __ehdr_start This requires the run-time relocation. This is another case of PR 103762.
