https://bugs.kde.org/show_bug.cgi?id=376611
Bug ID: 376611
Summary: ppc64 and arm64 don't know about prlimit64 syscall
Product: valgrind
Version: 3.12 SVN
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: m...@redhat.com
Target Milestone: ---
Running prlimit on either arm64 or ppc64[le] gets this WARNING:
==19848== Command: prlimit
==19848==
--19848-- WARNING: unhandled arm64-linux syscall: 261
--19848-- You may be able to write your own handler.
--19848-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--19848-- Nevertheless we consider this a bug. Please report
--19848-- it at http://valgrind.org/support/bug_reports.html.
prlimit: failed to get the AS resource limit: Function not implemented
==14990== Command: prlimit
==14990==
--14990-- WARNING: unhandled ppc64le-linux syscall: 325
--14990-- You may be able to write your own handler.
--14990-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--14990-- Nevertheless we consider this a bug. Please report
--14990-- it at http://valgrind.org/support/bug_reports.html.
prlimit: failed to get the AS resource limit: Function not implemented
The fix is simply to hook both syscalls to the already existing wrapper:
diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c
b/coregrind/m_syswrap/syswrap-arm64-linux.c
index 1be6629..f8b5b7c 100644
--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
+++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
@@ -868,6 +868,7 @@ static SyscallTableEntry syscall_main_table[] = {
LINXY(__NR_recvmmsg, sys_recvmmsg), // 243
GENXY(__NR_wait4, sys_wait4), // 260
+ LINXY(__NR_prlimit64, sys_prlimit64), // 261
LINXY(__NR_name_to_handle_at, sys_name_to_handle_at), // 264
LINXY(__NR_open_by_handle_at, sys_open_by_handle_at), // 265
diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c
b/coregrind/m_syswrap/syswrap-ppc64-linux.c
index f90140d..ce5cbbb 100644
--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
+++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
@@ -905,6 +905,7 @@ static SyscallTableEntry syscall_table[] = {
LINX_(__NR_pwritev, sys_pwritev), // 321
LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 322
+ LINXY(__NR_prlimit64, sys_prlimit64), // 325
LINXY(__NR_socket, sys_socket), // 326
LINX_(__NR_bind, sys_bind), // 327
LINX_(__NR_connect, sys_connect), // 328
--
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