pty: minor modernization

[elogind.git] / src / shared / missing.h

diff --git a/src/shared/missing.h b/src/shared/missing.h
index 94d9d8d35dd3e8e66daeee4e787c14e83ba2391b..cdc38b2dd8945850b9b316c29eabe9af0a176391 100644 (file)
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -679,6 +679,30 @@ static inline pid_t raw_getpid(void) {
 }
 
 #if !HAVE_DECL_RENAMEAT2
+
+#ifndef __NR_renameat2
+#  if defined __x86_64__
+#    define __NR_renameat2 316
+#  elif defined __arm__
+#    define __NR_renameat2 382
+#  elif defined _MIPS_SIM
+#    if _MIPS_SIM == _MIPS_SIM_ABI32
+#      define __NR_renameat2 4351
+#    endif
+#    if _MIPS_SIM == _MIPS_SIM_NABI32
+#      define __NR_renameat2 6315
+#    endif
+#    if _MIPS_SIM == _MIPS_SIM_ABI64
+#      define __NR_renameat2 5311
+#    endif
+#  elif defined __i386__
+#    define __NR_renameat2 353
+#  else
+#    warning "__NR_renameat2 unknown for your architecture"
+#    define __NR_renameat2 0xffffffff
+#  endif
+#endif
+
 static inline int renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
         return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
 }
@@ -687,3 +711,13 @@ static inline int renameat2(int oldfd, const char *oldname, int newfd, const cha
 #ifndef RENAME_NOREPLACE
 #define RENAME_NOREPLACE (1 << 0)
 #endif
+
+#if !HAVE_DECL_KCMP
+static inline int kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
+        return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
+}
+#endif
+
+#ifndef KCMP_FILE
+#define KCMP_FILE 0
+#endif