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From: Mark W. <ma...@so...> - 2018-06-16 21:26:29
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=c76123d32cd81c8eaed99cb582a364f025c40ca9 commit c76123d32cd81c8eaed99cb582a364f025c40ca9 Author: Mark Wielaard <ma...@kl...> Date: Sat Jun 16 23:25:48 2018 +0200 none/tests/linux/membarrier.vgtest: Only execute if membarrier exists. Diff: --- none/tests/linux/membarrier.vgtest | 1 + 1 file changed, 1 insertion(+) diff --git a/none/tests/linux/membarrier.vgtest b/none/tests/linux/membarrier.vgtest index 542e2ca..4d78476 100644 --- a/none/tests/linux/membarrier.vgtest +++ b/none/tests/linux/membarrier.vgtest @@ -1 +1,2 @@ prog: membarrier +prereq: test -x membarrier |
|
From: Mark W. <ma...@so...> - 2018-06-16 21:03:48
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=7f4e06881ca836554451c4fe42315a112b9642ea commit 7f4e06881ca836554451c4fe42315a112b9642ea Author: Mark Wielaard <ma...@kl...> Date: Sat Jun 16 23:02:39 2018 +0200 none/tests/linux/Makefile.am: Fix membarrier.st[d]err.exp typo. Diff: --- none/tests/linux/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/none/tests/linux/Makefile.am b/none/tests/linux/Makefile.am index d16ac4d..5299da2 100644 --- a/none/tests/linux/Makefile.am +++ b/none/tests/linux/Makefile.am @@ -8,7 +8,7 @@ EXTRA_DIST = \ brk-overflow1.stderr.exp brk-overflow1.vgtest \ brk-overflow2.stderr.exp brk-overflow2.vgtest \ clonev.stdout.exp clonev.stderr.exp clonev.vgtest \ - membarrier.sterr.exp membarrier.vgtest \ + membarrier.stderr.exp membarrier.vgtest \ mremap.stderr.exp mremap.stderr.exp-glibc27 mremap.stdout.exp \ mremap.vgtest \ mremap2.stderr.exp mremap2.stdout.exp mremap2.vgtest \ |
|
From: Bart V. A. <bva...@so...> - 2018-06-16 01:06:46
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=e9a82f3d759189868f7bdb33729dfe4c0bbc119c commit e9a82f3d759189868f7bdb33729dfe4c0bbc119c Author: Bart Van Assche <bar...@wd...> Date: Thu Jun 14 13:39:30 2018 -0700 Add a test program for the membarrier() system call Signed-off-by: Bart Van Assche <bar...@wd...> Diff: --- configure.ac | 14 ++++++++++++++ none/tests/linux/Makefile.am | 5 +++++ none/tests/linux/membarrier.c | 10 ++++++++++ none/tests/linux/membarrier.stderr.exp | 3 +++ none/tests/linux/membarrier.vgtest | 1 + 5 files changed, 33 insertions(+) diff --git a/configure.ac b/configure.ac index 306fbc7..71c96ed 100644 --- a/configure.ac +++ b/configure.ac @@ -1727,6 +1727,20 @@ if test "$sys_user_has_user_regs" = "yes"; then [Define to 1 if <sys/user.h> defines struct user_regs_struct]) fi +AC_MSG_CHECKING([for __NR_membarrier]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <linux/unistd.h> +]], [[ +return __NR_membarrier +]])], [ +ac_have_nr_membarrier=yes +AC_MSG_RESULT([yes]) +], [ +ac_have_nr_membarrier=no +AC_MSG_RESULT([no]) +]) + +AM_CONDITIONAL(HAVE_NR_MEMBARRIER, [test x$ac_have_nr_membarrier = xyes]) #---------------------------------------------------------------------------- # Checking for supported compiler flags. diff --git a/none/tests/linux/Makefile.am b/none/tests/linux/Makefile.am index 299476d..d16ac4d 100644 --- a/none/tests/linux/Makefile.am +++ b/none/tests/linux/Makefile.am @@ -8,6 +8,7 @@ EXTRA_DIST = \ brk-overflow1.stderr.exp brk-overflow1.vgtest \ brk-overflow2.stderr.exp brk-overflow2.vgtest \ clonev.stdout.exp clonev.stderr.exp clonev.vgtest \ + membarrier.sterr.exp membarrier.vgtest \ mremap.stderr.exp mremap.stderr.exp-glibc27 mremap.stdout.exp \ mremap.vgtest \ mremap2.stderr.exp mremap2.stdout.exp mremap2.vgtest \ @@ -32,6 +33,10 @@ check_PROGRAMS = \ pthread-stack \ stack-overflow +if HAVE_NR_MEMBARRIER + check_PROGRAMS += membarrier +endif + AM_CFLAGS += $(AM_FLAG_M3264_PRI) AM_CXXFLAGS += $(AM_FLAG_M3264_PRI) diff --git a/none/tests/linux/membarrier.c b/none/tests/linux/membarrier.c new file mode 100644 index 0000000..f7199ac --- /dev/null +++ b/none/tests/linux/membarrier.c @@ -0,0 +1,10 @@ +#include <stdio.h> +#include <unistd.h> +#include <linux/unistd.h> + +int main(int argc, char **argv) +{ + syscall(__NR_membarrier, 0/*query*/); + fprintf(stderr, "Done.\n"); + return 0; +} diff --git a/none/tests/linux/membarrier.stderr.exp b/none/tests/linux/membarrier.stderr.exp new file mode 100644 index 0000000..eb9b6c1 --- /dev/null +++ b/none/tests/linux/membarrier.stderr.exp @@ -0,0 +1,3 @@ + +Done. + diff --git a/none/tests/linux/membarrier.vgtest b/none/tests/linux/membarrier.vgtest new file mode 100644 index 0000000..542e2ca --- /dev/null +++ b/none/tests/linux/membarrier.vgtest @@ -0,0 +1 @@ +prog: membarrier |
|
From: Bart V. A. <bva...@so...> - 2018-06-16 01:06:37
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=959a54cb3a631bb61420f1784a0c8585af24349e commit 959a54cb3a631bb61420f1784a0c8585af24349e Author: Bart Van Assche <bar...@wd...> Date: Fri Jun 15 08:24:53 2018 -0700 Add support for the Linux membarrier() system call Signed-off-by: Bart Van Assche <bar...@wd...> Diff: --- NEWS | 1 + coregrind/m_syswrap/priv_syswrap-linux.h | 2 ++ coregrind/m_syswrap/syswrap-amd64-linux.c | 4 +++- coregrind/m_syswrap/syswrap-arm64-linux.c | 2 +- coregrind/m_syswrap/syswrap-linux.c | 6 ++++++ 5 files changed, 13 insertions(+), 2 deletions(-) diff --git a/NEWS b/NEWS index 2eea334..0044971 100644 --- a/NEWS +++ b/NEWS @@ -117,6 +117,7 @@ n-i-bz fix bug in strspn replacement n-i-bz Add support for the Linux BLKFLSBUF ioctl n-i-bz Add support for the Linux BLKREPORTZONE and BLKRESETZONE ioctls n-i-bz Fix possible stack trashing by semctl syscall wrapping +n-i-bz Add support for the Linux membarrier() system call Release 3.13.0 (15 June 2017) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/coregrind/m_syswrap/priv_syswrap-linux.h b/coregrind/m_syswrap/priv_syswrap-linux.h index 5b5c8ef..65704cd 100644 --- a/coregrind/m_syswrap/priv_syswrap-linux.h +++ b/coregrind/m_syswrap/priv_syswrap-linux.h @@ -293,6 +293,8 @@ DECL_TEMPLATE(linux, sys_memfd_create); DECL_TEMPLATE(linux, sys_syncfs); +DECL_TEMPLATE(linux, sys_membarrier); + /* --------------------------------------------------------------------- Wrappers for sockets and ipc-ery. These are split into standalone procedures because x86-linux hides them inside multiplexors diff --git a/coregrind/m_syswrap/syswrap-amd64-linux.c b/coregrind/m_syswrap/syswrap-amd64-linux.c index 14ad649..0f2ad8c 100644 --- a/coregrind/m_syswrap/syswrap-amd64-linux.c +++ b/coregrind/m_syswrap/syswrap-amd64-linux.c @@ -839,10 +839,12 @@ static SyscallTableEntry syscall_table[] = { LINX_(__NR_renameat2, sys_renameat2), // 316 // LIN__(__NR_seccomp, sys_ni_syscall), // 317 LINXY(__NR_getrandom, sys_getrandom), // 318 - LINXY(__NR_memfd_create, sys_memfd_create) // 319 + LINXY(__NR_memfd_create, sys_memfd_create), // 319 // LIN__(__NR_kexec_file_load, sys_ni_syscall), // 320 // LIN__(__NR_bpf, sys_ni_syscall) // 321 + + LINX_(__NR_membarrier, sys_membarrier), // 324 }; SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno ) diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c index d244459..32b87bf 100644 --- a/coregrind/m_syswrap/syswrap-arm64-linux.c +++ b/coregrind/m_syswrap/syswrap-arm64-linux.c @@ -880,7 +880,7 @@ static SyscallTableEntry syscall_main_table[] = { // (__NR_bpf, sys_ni_syscall) // 280 // (__NR_execveat, sys_ni_syscall), // 281 // (__NR_userfaultfd, sys_ni_syscall), // 282 - // (__NR_membarrier, sys_ni_syscall), // 283 + LINX_(__NR_membarrier, sys_membarrier), // 283 // (__NR_mlock2, sys_ni_syscall), // 284 // (__NR_copy_file_range, sys_ni_syscall), // 285 // (__NR_preadv2, sys_ni_syscall), // 286 diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c index 1d95489..2336c29 100644 --- a/coregrind/m_syswrap/syswrap-linux.c +++ b/coregrind/m_syswrap/syswrap-linux.c @@ -3646,6 +3646,12 @@ POST(sys_memfd_create) } } +PRE(sys_membarrier) +{ + PRINT("sys_membarrier ( %#" FMT_REGWORD "x )", ARG1); + PRE_REG_READ1(int, "membarrier", int, flags); +} + PRE(sys_syncfs) { *flags |= SfMayBlock; |