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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-04-14 04:12:55 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-04-14 04:13:11 -0700 |
| commit | 889c2a67967f7047c245779a0a0fd8ba8796846e (patch) | |
| tree | c6b6b56e0438ab85f6f508a13ac5287ed113b395 /ld/testsuite | |
| parent | 887bddbcad907021f4cb98168cd51f2631e6cfc8 (diff) | |
| download | gdb-889c2a67967f7047c245779a0a0fd8ba8796846e.zip gdb-889c2a67967f7047c245779a0a0fd8ba8796846e.tar.gz gdb-889c2a67967f7047c245779a0a0fd8ba8796846e.tar.bz2 | |
Add -z noextern-protected-data to ld for ELF/x86
Address of protected data defined in the shared library may be external,
i.e., due to copy relocation. By default, linker backend checks if
relocations against protected data symbols are valid for building shared
library and issues an error if relocation isn't allowed. The new option
override linker backend default. When -z noextern-protected-data is used,
updates on protected data symbols by another module won't be visibile
to the resulting shared library. This option is specific to ELF/i386
and ELF/x86-64.
bfd/
PR ld/pr17709
* elflink.c (_bfd_elf_adjust_dynamic_copy): Check
info->extern_protected_data when warning copy relocs against
protected symbols.
(_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data
when checking protected non-function symbols.
include/
PR ld/pr17709
* bfdlink.h (bfd_link_info): Add extern_protected_data.
ld/
PR ld/pr17709
* ld.texinfo: Document "-z noextern-protected-data".
* ldmain.c (main): Initialize link_info.extern_protected_data
to -1.
* lexsup.c (elf_shlib_list_options): Add
"-z [no]extern-protected-data".
* emulparams/elf32_x86_64.sh: Source extern_protected_data.sh.
* emulparams/elf_i386.sh: Likewise.
* emulparams/elf_i386_be.sh: Likewise.
* emulparams/elf_i386_chaos.sh: Likewise.
* emulparams/elf_i386_ldso.sh: Likewise.
* emulparams/elf_i386_vxworks.sh: Likewise.
* emulparams/elf_k1om.sh: Likewise.
* emulparams/elf_l1om.sh: Likewise.
* emulparams/elf_x86_64.sh: Source extern_protected_data.sh.
(PARSE_AND_LIST_OPTIONS): Renamed to ...
(PARSE_AND_LIST_OPTIONS_BNDPLT): This.
(PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ...
(PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This.
(PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT.
(PARSE_AND_LIST_ARGS_CASE_Z): Append
$PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT.
* emulparams/extern_protected_data.sh: New file.
ld/testsuite/
PR ld/pr17709
* ld-i386/i386.exp: Run protected6b.
* ld-i386/protected6b.d: New file.
* ld-x86-64/protected6b.d: Likewise.
* ld-x86-64/x86-64.exp: Run protected6b.
Diffstat (limited to 'ld/testsuite')
| -rw-r--r-- | ld/testsuite/ChangeLog | 8 | ||||
| -rw-r--r-- | ld/testsuite/ld-i386/i386.exp | 1 | ||||
| -rw-r--r-- | ld/testsuite/ld-i386/protected6b.d | 6 | ||||
| -rw-r--r-- | ld/testsuite/ld-x86-64/protected6b.d | 6 | ||||
| -rw-r--r-- | ld/testsuite/ld-x86-64/x86-64.exp | 1 |
5 files changed, 22 insertions, 0 deletions
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog index 8b45279..b35eb83 100644 --- a/ld/testsuite/ChangeLog +++ b/ld/testsuite/ChangeLog @@ -1,3 +1,11 @@ +2015-04-14 H.J. Lu <hongjiu.lu@intel.com> + + PR ld/pr17709 + * ld-i386/i386.exp: Run protected6b. + * ld-i386/protected6b.d: New file. + * ld-x86-64/protected6b.d: Likewise. + * ld-x86-64/x86-64.exp: Run protected6b. + 2015-04-11 H.J. Lu <hongjiu.lu@intel.com> * ld-i386/i386.exp: Run protected6a. diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp index 0c0fd96..f214d89 100644 --- a/ld/testsuite/ld-i386/i386.exp +++ b/ld/testsuite/ld-i386/i386.exp @@ -237,6 +237,7 @@ run_dump_test "protected3" run_dump_test "protected4" run_dump_test "protected5" run_dump_test "protected6a" +run_dump_test "protected6b" run_dump_test "tlspie1" run_dump_test "tlspie2" run_dump_test "nogot1" diff --git a/ld/testsuite/ld-i386/protected6b.d b/ld/testsuite/ld-i386/protected6b.d new file mode 100644 index 0000000..5642c60 --- /dev/null +++ b/ld/testsuite/ld-i386/protected6b.d @@ -0,0 +1,6 @@ +#source: protected6.s +#as: --32 +#ld: -shared -melf_i386 -z noextern-protected-data +#readelf: -r + +There are no relocations in this file. diff --git a/ld/testsuite/ld-x86-64/protected6b.d b/ld/testsuite/ld-x86-64/protected6b.d new file mode 100644 index 0000000..8b44331 --- /dev/null +++ b/ld/testsuite/ld-x86-64/protected6b.d @@ -0,0 +1,6 @@ +#source: protected6.s +#as: --64 +#ld: -shared -melf_x86_64 -z noextern-protected-data +#readelf: -r + +There are no relocations in this file. diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp index 213a4c0..8352ad9 100644 --- a/ld/testsuite/ld-x86-64/x86-64.exp +++ b/ld/testsuite/ld-x86-64/x86-64.exp @@ -221,6 +221,7 @@ run_dump_test "protected3-l1om" run_dump_test "protected4" run_dump_test "protected5" run_dump_test "protected6a" +run_dump_test "protected6b" run_dump_test "protected7a" run_dump_test "protected7b" run_dump_test "tlsle1" |