Bug #344007 accept4 syscall unhandled on arm64 (242) and ppc64 (344)

ppc64 might fall back to socketcall in some cases, but arm64 always uses
accept4 syscall directly. Some (confusing) background on when/how glibc
(wrongly) decides to use a direct accept4 or the socketcall system call:
https://sourceware.org/ml/libc-alpha/2013-12/msg00014.html

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14926

diff --git a/NEWS b/NEWS
index 6395513356519d5ad10f72acb097f750edf04ee1..0b7bb568824dfa458edb902d4c4f847f72acbb86 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -93,6 +93,7 @@ where XXXXXX is the bug number as listed below.
         unitialised value(s)"
 343967  Don't warn about setuid/setgid/setcap executable for directories
 343978  Recognize DWARF5/GCC5 DW_LANG_Fortran 2003 and 2008 constants
+344007  accept4 syscall unhandled on arm64 (242) and ppc64 (344)
 n-i-bz  Provide implementations of certain compiler builtins to support
         compilers who may not provide those
 n-i-bz  Old STABS code is still being compiled, but never used. Remove it.

diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
index c23e6f75ca5c299c1cf92fd16a02d1421aedd128..1f9670aa098277258a620e0777f3e75126700d11 100644 (file)
--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
+++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
@@ -1040,6 +1040,7 @@ static SyscallTableEntry syscall_main_table[] = {
    LINX_(__NR_mbind,             sys_mbind),             // 235
    LINXY(__NR_get_mempolicy,     sys_get_mempolicy),     // 236
    LINX_(__NR_set_mempolicy,     sys_set_mempolicy),     // 237
+   LINXY(__NR_accept4,           sys_accept4),           // 242
    GENXY(__NR_wait4,             sys_wait4),             // 260
 
    LINXY(__NR_process_vm_readv,  sys_process_vm_readv),  // 270
@@ -1379,8 +1380,6 @@ static SyscallTableEntry syscall_main_table[] = {
 //ZZ    LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 363
 //ZZ    LINXY(__NR_perf_event_open,   sys_perf_event_open),  // 364
 //ZZ 
-//ZZ    LINXY(__NR_accept4,           sys_accept4),          // 366
-//ZZ 
 //ZZ    LINXY(__NR_name_to_handle_at, sys_name_to_handle_at),// 370
 //ZZ    LINXY(__NR_open_by_handle_at, sys_open_by_handle_at),// 371
 //ZZ    LINXY(__NR_clock_adjtime,     sys_clock_adjtime)     // 372

diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c
index 25e0bdecdbdbcd55654b7d1e053be70e0d12d893..8d5fa08b093f3d2889becaeb99181c4a3d14fa07 100644 (file)
--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
+++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
@@ -1152,6 +1152,8 @@ static SyscallTableEntry syscall_table[] = {
    LINX_(__NR_pwritev,           sys_pwritev),          // 321
    LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 322
 
+   LINXY(__NR_accept4,           sys_accept4),          // 344
+
    LINXY(__NR_clock_adjtime,     sys_clock_adjtime),    // 347
 
    LINXY(__NR_process_vm_readv,  sys_process_vm_readv), // 351