Date: Wed, 4 Jun 2014 09:45:54 GMT From: op@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r269044 - in soc2014/op/tests/ifunc-vs-kpatch: . clang gcc src Message-ID: <201406040945.s549js1Q045396@socsvn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: op Date: Wed Jun 4 09:45:52 2014 New Revision: 269044 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=269044 Log: added __attribute__((ifunc("foo))) tester Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com> Added: soc2014/op/tests/ifunc-vs-kpatch/ soc2014/op/tests/ifunc-vs-kpatch/Makefile soc2014/op/tests/ifunc-vs-kpatch/clang/ soc2014/op/tests/ifunc-vs-kpatch/clang/Makefile soc2014/op/tests/ifunc-vs-kpatch/clang/test-ifunc.c (contents, props changed) soc2014/op/tests/ifunc-vs-kpatch/gcc/ soc2014/op/tests/ifunc-vs-kpatch/gcc/Makefile soc2014/op/tests/ifunc-vs-kpatch/gcc/test-ifunc.c (contents, props changed) soc2014/op/tests/ifunc-vs-kpatch/src/ soc2014/op/tests/ifunc-vs-kpatch/src/test-ifunc.c Added: soc2014/op/tests/ifunc-vs-kpatch/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/Makefile Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1,3 @@ +SUBDIR= gcc clang + +.include <bsd.subdir.mk> Added: soc2014/op/tests/ifunc-vs-kpatch/clang/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/clang/Makefile Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1,8 @@ +CC=clang + +PROG= test-ifunc + +NO_PIE= +NO_MAN= + +.include <bsd.prog.mk> Added: soc2014/op/tests/ifunc-vs-kpatch/clang/test-ifunc.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/clang/test-ifunc.c Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1 @@ +link ../src/test-ifunc.c \ No newline at end of file Added: soc2014/op/tests/ifunc-vs-kpatch/gcc/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/gcc/Makefile Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1,8 @@ +CC= gcc49 + +PROG= test-ifunc + +NO_PIE= +NO_MAN= + +.include <bsd.prog.mk> Added: soc2014/op/tests/ifunc-vs-kpatch/gcc/test-ifunc.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/gcc/test-ifunc.c Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1 @@ +link ../src/test-ifunc.c \ No newline at end of file Added: soc2014/op/tests/ifunc-vs-kpatch/src/test-ifunc.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2014/op/tests/ifunc-vs-kpatch/src/test-ifunc.c Wed Jun 4 09:45:52 2014 (r269044) @@ -0,0 +1,77 @@ +#include <stdio.h> +#include <sys/time.h> + +#define ROUNDS 10000000 + +void *__a (void); +void *__b (void); +void *A (void) __attribute__ ((ifunc ("disp_a"))); +void B(void); +void C(void); + +int +main(int argc, char **argv) +{ + int i; + struct timespec start; + struct timespec stop; + + printf("ifunc\n"); + clock_gettime(CLOCK_REALTIME_PRECISE, &start); + for (i=0; i<ROUNDS; i++) + A(); + clock_gettime(CLOCK_REALTIME_PRECISE, &stop); + printf("time: %lld ns\n", stop.tv_nsec - start.tv_nsec); + + printf("nop nop nop\n"); + clock_gettime(CLOCK_REALTIME_PRECISE, &start); + for (i=0; i<ROUNDS; i++) + B(); + clock_gettime(CLOCK_REALTIME_PRECISE, &stop); + printf("time: %lld ns\n", stop.tv_nsec - start.tv_nsec); + + printf("long nop\n"); + clock_gettime(CLOCK_REALTIME_PRECISE, &start); + for (i=0; i<ROUNDS; i++) + C(); + clock_gettime(CLOCK_REALTIME_PRECISE, &stop); + printf("time: %lld ns\n", stop.tv_nsec - start.tv_nsec); + + return (0); +} + +void *__a (void) +{ + __asm __volatile ("push %%rax" ::: "memory"); + __asm __volatile ("xor %%rax, %%rax" ::: "memory"); + __asm __volatile ("pop %%rax" ::: "memory"); +} + +void *__b (void) +{ + printf("b\n"); +} + +static void (*disp_a (void)) (void) +{ + return 1 ? __a : __b; +} + +void +B(void) +{ + __asm __volatile ("push %%rax" ::: "memory"); + __asm __volatile ("nop; nop; nop" ::: "memory"); + __asm __volatile ("xor %%rax, %%rax" ::: "memory"); + __asm __volatile ("pop %%rax" ::: "memory"); +} + +void +C(void) +{ + __asm __volatile ("push %%rax" ::: "memory"); + /* intel 3 byte nop */ + __asm __volatile (".byte 0x0f,0x1f,0x00" ::: "memory"); + __asm __volatile ("xor %%rax, %%rax" ::: "memory"); + __asm __volatile ("pop %%rax" ::: "memory"); +}
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201406040945.s549js1Q045396>