Index: chromium-120.0.6099.71/third_party/lss/linux_syscall_support.h
===================================================================
--- chromium-120.0.6099.71.orig/third_party/lss/linux_syscall_support.h
+++ chromium-120.0.6099.71/third_party/lss/linux_syscall_support.h
@@ -4638,7 +4638,7 @@ struct kernel_statx {
       LSS_REG(2, buf);
       LSS_BODY(void*, mmap2, "0"(__r2));
     }
-#else
+#elif !defined(__powerpc64__) /* ppc64 doesn't have mmap2 */
     #define __NR__mmap2 __NR_mmap2
     LSS_INLINE _syscall6(void*, _mmap2,            void*, s,
                          size_t,                   l, int,               p,
@@ -4749,7 +4749,7 @@ struct kernel_statx {
   #if defined(__i386__) ||                                                    \
       defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) ||                     \
      (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) ||                   \
-      defined(__PPC__) ||                                                     \
+     (defined(__PPC__) && !defined(__powerpc64__)) ||                                                     \
      (defined(__s390__) && !defined(__s390x__))
     /* On these architectures, implement mmap() with mmap2(). */
     LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,