[Bug ld/16548] New: Ld does not handle arbitrary .plt/.got displacements
https://sourceware.org/bugzilla/show_bug.cgi?id=16548 Bug ID: 16548 Summary: Ld does not handle arbitrary .plt/.got displacements Product: binutils Version: 2.25 (HEAD) Status: NEW Severity: normal Priority: P2 Component: ld Assignee: unassigned at sourceware dot org Reporter: y.gribov at samsung dot com Currently BFD linker generates 3-word wide .plt entries for ARM targets: 825c <.plt>: ... 8270: e28fc600 add ip, pc, #0, 12 8274: e28cca08 add ip, ip, #8, 20 ; 0x8000 8278: e5bcf3e8 ldr pc, [ip, #1000]! ; 0x3e8 827c: e28fc600 add ip, pc, #0, 12 8280: e28cca08 add ip, ip, #8, 20 ; 0x8000 8284: e5bcf3e0 ldr pc, [ip, #992]! ; 0x3e0 These entries are only able to initialize first 28 bits of .plt/.got displacement. If .text and .rodata are bigger than 2 ^ 28 bytes (i.e. 256M) this may cause linker errors due to assert in elf32_arm_populate_plt_entry (in bfd/elf32-arm.c): BFD_ASSERT ((got_displacement & 0xf000) == 0); -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/16548] Ld does not handle arbitrary .plt/.got displacements
https://sourceware.org/bugzilla/show_bug.cgi?id=16548 Yury Gribov changed: What|Removed |Added CC||v.garbuzov at samsung dot com, ||y.gribov at samsung dot com -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/16548] Ld does not handle arbitrary .plt/.got displacements
https://sourceware.org/bugzilla/show_bug.cgi?id=16548 --- Comment #1 from Yury Gribov --- Created attachment 7401 --> https://sourceware.org/bugzilla/attachment.cgi?id=7401&action=edit Proposed patch I suggest to add an option --long-plt to allow generation of 4-word wide .plt entries capable of handling arbitrary .plt/.got displacements: 825c <.plt>: ... 8270: e28fc200 add ip, pc, #0, 4 8274: e28cc600 add ip, ip, #0, 12 8278: e28cca08 add ip, ip, #8, 20 ; 0x8000 827c: e5bcf3f4 ldr pc, [ip, #1012]! ; 0x3f4 8280: e28fc200 add ip, pc, #0, 4 8284: e28cc600 add ip, ip, #0, 12 8288: e28cca08 add ip, ip, #8, 20 ; 0x8000 828c: e5bcf3e8 ldr pc, [ip, #1000]! ; 0x3e8 Users will than be able to avoid afore-mentioned link error by compiling with -Wl,--long-plt. I'm attaching a draft patch to illustrate my proposal. -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gold/16533] Gold does not set HASENTRY attribute on ARM
https://sourceware.org/bugzilla/show_bug.cgi?id=16533 Yury Gribov changed: What|Removed |Added CC||v.garbuzov at samsung dot com, ||y.gribov at samsung dot com -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/16548] Ld does not handle arbitrary .plt/.got displacements
https://sourceware.org/bugzilla/show_bug.cgi?id=16548 --- Comment #2 from Yury Gribov --- Link to discussion in mailing list: https://sourceware.org/ml/binutils/2014-02/msg00053.html -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gold/16530] --dynamic-list does not protect symbols from being garbage collected
http://sourceware.org/bugzilla/show_bug.cgi?id=16530 --- Comment #3 from cvs-commit at gcc dot gnu.org --- This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "gdb and binutils". The branch, master has been updated via d6f6f455778b10037503bcc39352b5174bba5e45 (commit) from 8577303939d47fc3dd433ed31f78ee47c6ad0aa8 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log - https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d6f6f455778b10037503bcc39352b5174bba5e45 commit d6f6f455778b10037503bcc39352b5174bba5e45 Author: H.J. Lu Date: Thu Feb 6 09:44:25 2014 -0800 Mark symbol in executables if it matches dynamic_list bfd/ PR gold/16530 * elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Mark symbol in executables if it matches dynamic_list. ld/testsuite/ PR gold/16530 * ld-elf/dynamic-1.c: New file. * ld-elf/dynamic-1.rd: Likewise. * ld-elf/dynamic-1.syms: Likewise. * ld-elf/shared.exp (build_tests): Add dynamic-1. --- Summary of changes: bfd/ChangeLog |6 ++ bfd/elflink.c |6 +- ld/testsuite/ChangeLog |9 + ld/testsuite/ld-elf/dynamic-1.c| 10 ++ ld/testsuite/ld-elf/dynamic-1.rd |5 + ld/testsuite/ld-elf/dynamic-1.syms |3 +++ ld/testsuite/ld-elf/shared.exp |3 +++ 7 files changed, 41 insertions(+), 1 deletions(-) create mode 100644 ld/testsuite/ld-elf/dynamic-1.c create mode 100644 ld/testsuite/ld-elf/dynamic-1.rd create mode 100644 ld/testsuite/ld-elf/dynamic-1.syms -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
