https://sourceware.org/bugzilla/show_bug.cgi?id=25426
--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ccf20d460f73c48f3334e1401558df342c77ac8a commit ccf20d460f73c48f3334e1401558df342c77ac8a Author: H.J. Lu <hjl.to...@gmail.com> Date: Fri May 1 10:11:06 2020 -0700 gold: x86-64: Fix TLSDESC relaxation for x32 X32 TLSDESC sequences can be: 40 8d 05 00 00 00 00 rex lea foo@TLSDESC(%rip), %reg ... 67 ff 10 call *foo@TLSCALL(%eax) or the same sequence as LP64: 48 8d 05 00 00 00 00 lea foo@TLSDESC(%rip), %reg ... ff 10 call *foo@TLSCALL(%rax) We need to support both sequences for x32. For both GDesc -> IE/LE transitions, 67 ff 10 call *foo@TLSCALL(%eax) should relaxed to 0f 1f 00 nopl (%rax) For GDesc -> LE transition, 40 8d 05 00 00 00 00 rex lea foo@TLSDESC(%rip), %reg should relaxed to 40 c7 c0 fc ff ff ff rex movl $foo@tpoff, %reg For GDesc -> IE transition, 40 8d 05 00 00 00 00 rex lea foo@TLSDESC(%rip), %reg should relaxed to 40 8b 05 00 00 00 00 rex movl foo@gottpoff(%rip), %eax PR gold/25426 * x86_64.cc (Target_x86_64<size>::Relocate::tls_desc_gd_to_ie): For x32, relax "rex leal foo@tlsdesc(%rip), %reg" to "rex movl foo@gottpoff(%rip), %eax" and relax ""call *(%eax)" to "nopl (%rax)". (Target_x86_64<size>::Relocate::tls_desc_gd_to_le): For x32, relax "rex leal foo@tlsdesc(%rip), %reg" to "rex movl foo@tpoff, %eax" and relax "call *foo@tlscall(%eax)" to "nopl (%rax)". * testsuite/Makefile.am (tls_test_gnu2.o): Depend on gcctestdir/as. (tls_test_file2_gnu2.o): Likewise. (tls_test_c_gnu2.o): Likewise. * testsuite/Makefile.in: Regenerated. -- You are receiving this mail because: You are on the CC list for the bug.
