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| author | H.J. Lu <hongjiu.lu@intel.com> | 2017-09-12 16:30:28 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2017-09-12 09:30:28 -0700 |
| commit | b4fed89078efeb11da212091421a9f4718f625cc (patch) | |
| tree | 991254b7281354b7923b50ba07c1114a2364c58f /gcc/config/i386/gnu-user.h | |
| parent | ff76f0b5f6e6a4144fabb9ae984a9ee9dcaa2d08 (diff) | |
| download | gcc-b4fed89078efeb11da212091421a9f4718f625cc.zip gcc-b4fed89078efeb11da212091421a9f4718f625cc.tar.gz gcc-b4fed89078efeb11da212091421a9f4718f625cc.tar.bz2 | |
Add -static-pie to GCC driver to create static PIE
This patch adds -static-pie to GCC driver to create static PIE. A static
position independent executable (PIE) is similar to static executable,
but can be loaded at any address without a dynamic linker. All linker
input files must be compiled with -fpie or -fPIE and linker must support
--no-dynamic-linker to avoid linking with dynamic linker. "-z text" is
also needed to prevent dynamic relocations in read-only segments.
PR driver/81498
* common.opt (-static-pie): New alias.
(shared): Negate static-pie.
(-no-pie): Update help text.
(-pie): Likewise.
(static-pie): New option.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Add
-static-pie support.
(GNU_USER_TARGET_ENDFILE_SPEC): Likewise.
(LINK_EH_SPEC): Likewise.
(LINK_GCC_C_SEQUENCE_SPEC): Likewise.
* config/i386/gnu-user.h (GNU_USER_TARGET_LINK_SPEC): Likewise.
* config/i386/gnu-user64.h (GNU_USER_TARGET_LINK_SPEC): Likewise.
* gcc.c (LINK_COMMAND_SPEC): Likewise.
(init_gcc_specs): Likewise.
(init_spec): Likewise.
(display_help): Update help message for -pie.
* doc/invoke.texi: Update -pie, -no-pie and -static. Document
-static-pie.
From-SVN: r252034
Diffstat (limited to 'gcc/config/i386/gnu-user.h')
| -rw-r--r-- | gcc/config/i386/gnu-user.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h index a4c88f1..8983dc9 100644 --- a/gcc/config/i386/gnu-user.h +++ b/gcc/config/i386/gnu-user.h @@ -77,9 +77,10 @@ along with GCC; see the file COPYING3. If not see #define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \ %{!shared: \ %{!static: \ - %{rdynamic:-export-dynamic} \ - -dynamic-linker %(dynamic_linker)} \ - %{static:-static}}" + %{!static-pie: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker %(dynamic_linker)}} \ + %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}}" #undef LINK_SPEC #define LINK_SPEC GNU_USER_TARGET_LINK_SPEC |