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commit a53adb79711ccfc76a4ee32b20253045cdab55c7
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Author: Mark Wielaard <mark@klomp.org>
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Date: Mon Jul 27 16:36:17 2020 +0200
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Handle linux syscalls sched_getattr and sched_setattr
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The only "special" thing about these syscalls is that the given
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struct sched_attr determines its own size for future expansion.
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Original fix by "ISHIKAWA,chiaki" <ishikawa@yk.rim.or.jp>
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https://bugs.kde.org/show_bug.cgi?id=369029
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diff --git a/coregrind/m_syswrap/priv_syswrap-linux.h b/coregrind/m_syswrap/priv_syswrap-linux.h
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index cdc73c1e6..eb0b320ca 100644
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--- a/coregrind/m_syswrap/priv_syswrap-linux.h
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+++ b/coregrind/m_syswrap/priv_syswrap-linux.h
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@@ -227,6 +227,8 @@ DECL_TEMPLATE(linux, sys_fremovexattr);
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// syscalls.
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DECL_TEMPLATE(linux, sys_sched_setparam);
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DECL_TEMPLATE(linux, sys_sched_getparam);
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+DECL_TEMPLATE(linux, sys_sched_setattr);
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+DECL_TEMPLATE(linux, sys_sched_getattr);
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DECL_TEMPLATE(linux, sys_sched_setscheduler);
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DECL_TEMPLATE(linux, sys_sched_getscheduler);
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DECL_TEMPLATE(linux, sys_sched_yield);
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diff --git a/coregrind/m_syswrap/syswrap-amd64-linux.c b/coregrind/m_syswrap/syswrap-amd64-linux.c
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index 28d90135a..d6f3eb910 100644
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--- a/coregrind/m_syswrap/syswrap-amd64-linux.c
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+++ b/coregrind/m_syswrap/syswrap-amd64-linux.c
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@@ -846,9 +846,8 @@ static SyscallTableEntry syscall_table[] = {
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LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 311
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LINX_(__NR_kcmp, sys_kcmp), // 312
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LINX_(__NR_finit_module, sys_finit_module), // 313
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-// LIN__(__NR_sched_setattr, sys_ni_syscall), // 314
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-
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-// LIN__(__NR_sched_getattr, sys_ni_syscall), // 315
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 314
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 315
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LINX_(__NR_renameat2, sys_renameat2), // 316
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// LIN__(__NR_seccomp, sys_ni_syscall), // 317
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LINXY(__NR_getrandom, sys_getrandom), // 318
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diff --git a/coregrind/m_syswrap/syswrap-arm-linux.c b/coregrind/m_syswrap/syswrap-arm-linux.c
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index 579542785..70700e53f 100644
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--- a/coregrind/m_syswrap/syswrap-arm-linux.c
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+++ b/coregrind/m_syswrap/syswrap-arm-linux.c
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@@ -1009,6 +1009,8 @@ static SyscallTableEntry syscall_main_table[] = {
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LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 376
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LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 377
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 380
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 381
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LINX_(__NR_renameat2, sys_renameat2), // 382
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LINXY(__NR_getrandom, sys_getrandom), // 384
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diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
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index 81e01456f..acca02442 100644
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--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
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+++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
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@@ -806,8 +806,8 @@ static SyscallTableEntry syscall_main_table[] = {
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LINX_(__NR_process_vm_writev, sys_process_vm_writev), // 271
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LINX_(__NR_kcmp, sys_kcmp), // 272
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LINX_(__NR_finit_module, sys_finit_module), // 273
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- // (__NR_sched_setattr, sys_ni_syscall), // 274
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- // (__NR_sched_getattr, sys_ni_syscall), // 275
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 274
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 275
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LINX_(__NR_renameat2, sys_renameat2), // 276
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// (__NR_seccomp, sys_ni_syscall), // 277
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LINXY(__NR_getrandom, sys_getrandom), // 278
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diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
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index 5b5b7eee6..56be3032d 100644
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--- a/coregrind/m_syswrap/syswrap-linux.c
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+++ b/coregrind/m_syswrap/syswrap-linux.c
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@@ -3677,6 +3677,41 @@ POST(sys_sched_getparam)
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POST_MEM_WRITE( ARG2, sizeof(struct vki_sched_param) );
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}
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+PRE(sys_sched_setattr)
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+{
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+ struct vki_sched_attr *attr;
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+ PRINT("sched_setattr ( %ld, %#" FMT_REGWORD "x, %#"
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+ FMT_REGWORD "x )", SARG1, ARG2, ARG3 );
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+ PRE_REG_READ3(long, "sched_setattr",
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+ vki_pid_t, pid, struct sched_attr *, p, unsigned int, flags);
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+ /* We need to be able to read at least the size field. */
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+ PRE_MEM_READ( "sched_setattr(attr->size)", ARG2, sizeof(vki_uint32_t) );
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+ attr = (struct vki_sched_attr *)(Addr)ARG2;
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+ if (ML_(safe_to_deref)(attr,sizeof(vki_uint32_t)))
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+ PRE_MEM_READ( "sched_setattr(attr)", (Addr)attr, attr->size);
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+}
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+
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+PRE(sys_sched_getattr)
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+{
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+ struct vki_sched_attr *attr;
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+ PRINT("sched_getattr ( %ld, %#" FMT_REGWORD "x, %ld, %#"
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+ FMT_REGWORD "x )", SARG1, ARG2, ARG3, ARG4 );
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+ PRE_REG_READ4(long, "sched_getattr",
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+ vki_pid_t, pid, struct sched_attr *, p,
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+ unsigned int, size, unsigned int, flags);
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+ /* We need to be able to read at least the size field. */
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+ PRE_MEM_READ( "sched_setattr(attr->size)", ARG2, sizeof(vki_uint32_t) );
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+ /* And the kernel needs to be able to write to the whole struct size. */
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+ attr = (struct vki_sched_attr *)(Addr)ARG2;
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+ if (ML_(safe_to_deref)(attr,sizeof(vki_uint32_t)))
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+ PRE_MEM_WRITE( "sched_setattr(attr)", (Addr)attr, attr->size);
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+}
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+POST(sys_sched_getattr)
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+{
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+ struct vki_sched_attr *attr = (struct vki_sched_attr *)(Addr)ARG2;
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+ POST_MEM_WRITE( (Addr)attr, attr->size );
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+}
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+
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PRE(sys_sched_getscheduler)
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{
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PRINT("sys_sched_getscheduler ( %ld )", SARG1);
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diff --git a/coregrind/m_syswrap/syswrap-ppc32-linux.c b/coregrind/m_syswrap/syswrap-ppc32-linux.c
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index eed12a1bc..c19cb9e0e 100644
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--- a/coregrind/m_syswrap/syswrap-ppc32-linux.c
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+++ b/coregrind/m_syswrap/syswrap-ppc32-linux.c
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@@ -1016,6 +1016,9 @@ static SyscallTableEntry syscall_table[] = {
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LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 351
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LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 352
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 355
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 356
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+
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LINXY(__NR_getrandom, sys_getrandom), // 359
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LINXY(__NR_memfd_create, sys_memfd_create), // 360
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diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c
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index d58200b49..b6422a765 100644
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--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
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+++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
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@@ -998,6 +998,8 @@ static SyscallTableEntry syscall_table[] = {
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LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 351
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LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 352
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 355
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 356
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LINX_(__NR_renameat2, sys_renameat2), // 357
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LINXY(__NR_getrandom, sys_getrandom), // 359
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diff --git a/coregrind/m_syswrap/syswrap-s390x-linux.c b/coregrind/m_syswrap/syswrap-s390x-linux.c
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index a0a330aa2..3427fee16 100644
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--- a/coregrind/m_syswrap/syswrap-s390x-linux.c
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+++ b/coregrind/m_syswrap/syswrap-s390x-linux.c
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@@ -825,8 +825,8 @@ static SyscallTableEntry syscall_table[] = {
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LINX_(__NR_kcmp, sys_kcmp), // 343
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// ?????(__NR_finit_module, ), // 344
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-// ?????(__NR_sched_setattr, ), // 345
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-// ?????(__NR_sched_getattr, ), // 346
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 345
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 346
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LINX_(__NR_renameat2, sys_renameat2), // 347
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// ?????(__NR_seccomp, ), // 348
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LINXY(__NR_getrandom, sys_getrandom), // 349
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diff --git a/coregrind/m_syswrap/syswrap-x86-linux.c b/coregrind/m_syswrap/syswrap-x86-linux.c
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index 332ed0bf2..b59d96f37 100644
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--- a/coregrind/m_syswrap/syswrap-x86-linux.c
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+++ b/coregrind/m_syswrap/syswrap-x86-linux.c
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@@ -1580,8 +1580,8 @@ static SyscallTableEntry syscall_table[] = {
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LINX_(__NR_kcmp, sys_kcmp), // 349
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// LIN__(__NR_finit_module, sys_ni_syscall), // 350
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-// LIN__(__NR_sched_setattr, sys_ni_syscall), // 351
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-// LIN__(__NR_sched_getattr, sys_ni_syscall), // 352
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+ LINX_(__NR_sched_setattr, sys_sched_setattr), // 351
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+ LINXY(__NR_sched_getattr, sys_sched_getattr), // 352
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LINX_(__NR_renameat2, sys_renameat2), // 353
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// LIN__(__NR_seccomp, sys_ni_syscall), // 354
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diff --git a/include/vki/vki-linux.h b/include/vki/vki-linux.h
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index 75b583165..ef93b9258 100644
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--- a/include/vki/vki-linux.h
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+++ b/include/vki/vki-linux.h
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@@ -410,6 +410,23 @@ struct vki_sched_param {
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int sched_priority;
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};
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+struct vki_sched_attr {
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+ vki_uint32_t size;
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+ vki_uint32_t sched_policy;
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+ vki_uint64_t sched_flags;
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+
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+ /* SCHED_NORMAL, SCHED_BATCH */
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+ vki_int32_t sched_nice;
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+
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+ /* SCHED_FIFO, SCHED_RR */
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+ vki_uint32_t sched_priority;
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+
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+ /* SCHED_DEADLINE */
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+ vki_uint64_t sched_runtime;
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+ vki_uint64_t sched_deadline;
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+ vki_uint64_t sched_period;
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+};
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+
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#define VKI_TASK_COMM_LEN 16
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//----------------------------------------------------------------------
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