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sparc/sparc64: use crtendS.o for default-pie executables [PR96190] 

In --enable-default-pie mode compiler should switch from
using crtend.o to crtendS.o. On sparc it is especially important
because crtend.o contains PIC-unfriendly code.

We use GNU_USER_TARGET_ENDFILE_SPEC as a baseline spec to get
crtendS.o instead of crtend.o in !no-pie mode.

gcc:

2020-07-14  Sergei Trofimovich  <siarheit@google.com>

	PR target/96190
	* config/sparc/linux.h (ENDFILE_SPEC): Use GNU_USER_TARGET_ENDFILE_SPEC
	to get crtendS.o for !no-pie mode.
	* config/sparc/linux64.h (ENDFILE_SPEC): Ditto.
This commit is contained in:
Sergei Trofimovich 2020-07-14 07:48:42 +01:00
parent 4d1c5b4957
commit 87891d5eaf
2 changed files with 4 additions and 16 deletions
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10
gcc/config/sparc/linux.h
View File

@ -27,16 +27,10 @@ along with GCC; see the file COPYING3. If not see
} \
while (0)
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main', followed by a normal
GNU/Linux "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
GNU_USER_TARGET_ENDFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
/* -mcpu=native handling only makes sense with compiler running on
a SPARC chip. */

10
gcc/config/sparc/linux64.h
View File

@ -44,16 +44,10 @@ along with GCC; see the file COPYING3. If not see
#undef ASM_CPU64_DEFAULT_SPEC
#define ASM_CPU64_DEFAULT_SPEC "-Av9a"
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main', followed by a normal
GNU/Linux "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
GNU_USER_TARGET_ENDFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
/* The default code model. */
#undef SPARC_DEFAULT_CMODEL