124 lines
4.5 KiB
Diff
124 lines
4.5 KiB
Diff
commit 3704e3589d3d187fbf76e688388b1a92fd627c8d
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Author: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
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Date: Fri Jun 9 11:19:01 2017 +0200
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S/390: Return with an error for broken tls rewrites
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bfd/ChangeLog:
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2017-06-12 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
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* elf32-s390.c (elf_s390_relocate_section): Return false in case
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the rewriting fails.
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* elf64-s390.c (elf_s390_relocate_section): Likewise.
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--- a/bfd/elf32-s390.c
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+++ b/bfd/elf32-s390.c
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@@ -3231,7 +3231,6 @@ elf_s390_relocate_section (bfd *output_bfd,
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unsigned int insn, ry;
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insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
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- ry = 0;
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if ((insn & 0xff00f000) == 0x58000000)
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/* l %rx,0(%ry,0) -> lr %rx,%ry + bcr 0,0 */
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ry = (insn & 0x000f0000);
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@@ -3245,7 +3244,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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/* l %rx,0(%r12,%ry) -> lr %rx,%ry + bcr 0,0 */
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ry = (insn & 0x0000f000) << 4;
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else
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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insn = 0x18000700 | (insn & 0x00f00000) | ry;
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bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
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}
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@@ -3258,7 +3260,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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if ((insn & 0xff000fff) != 0x4d000000 &&
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(insn & 0xffff0000) != 0xc0e50000 &&
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(insn & 0xff000000) != 0x0d000000)
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
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{
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if ((insn & 0xff000000) == 0x0d000000)
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@@ -3287,7 +3292,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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/* If basr is used in the pic case to invoke
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_tls_get_offset, something went wrong before. */
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if ((insn & 0xff000000) == 0x0d000000)
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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if ((insn & 0xff000000) == 0x4d000000)
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{
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@@ -3317,7 +3325,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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if ((insn & 0xff000fff) != 0x4d000000 &&
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(insn & 0xffff0000) != 0xc0e50000 &&
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(insn & 0xff000000) != 0x0d000000)
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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if ((insn & 0xff000000) == 0x0d000000)
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{
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--- a/bfd/elf64-s390.c
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+++ b/bfd/elf64-s390.c
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@@ -3197,8 +3197,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
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insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
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if (insn1 != 0x0004)
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- invalid_tls_insn (input_bfd, input_section, rel);
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- ry = 0;
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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if ((insn0 & 0xff00f000) == 0xe3000000)
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/* lg %rx,0(%ry,0) -> sllg %rx,%ry,0 */
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ry = (insn0 & 0x000f0000);
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@@ -3212,7 +3214,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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/* lg %rx,0(%r12,%ry) -> sllg %rx,%ry,0 */
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ry = (insn0 & 0x0000f000) << 4;
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else
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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insn0 = 0xeb000000 | (insn0 & 0x00f00000) | ry;
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insn1 = 0x000d;
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bfd_put_32 (output_bfd, insn0, contents + rel->r_offset);
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@@ -3226,7 +3231,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
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insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
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if ((insn0 & 0xffff0000) != 0xc0e50000)
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
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{
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/* GD->LE transition.
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@@ -3253,7 +3261,10 @@ elf_s390_relocate_section (bfd *output_bfd,
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insn0 = bfd_get_32 (input_bfd, contents + rel->r_offset);
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insn1 = bfd_get_16 (input_bfd, contents + rel->r_offset + 4);
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if ((insn0 & 0xffff0000) != 0xc0e50000)
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- invalid_tls_insn (input_bfd, input_section, rel);
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+ {
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+ invalid_tls_insn (input_bfd, input_section, rel);
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+ return FALSE;
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+ }
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/* LD->LE transition.
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brasl %r14,__tls_get_addr@plt -> brcl 0,. */
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insn0 = 0xc0040000;
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