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authorColin Cross <ccross@android.com>2022-12-21 09:48:40 -0800
committerColin Cross <ccross@android.com>2022-12-21 11:26:51 -0800
commit45b8aa469386ff5a39c322cb5447f8d42d8ee385 (patch)
treed822e37661fac3bd1d0381d2166737e621e3bdff
parent74b0aeb2ceb8ca5c1bd6309eb6920a9b90580e8c (diff)
downloadminijail-45b8aa469386ff5a39c322cb5447f8d42d8ee385.tar.gz
minijail: add local definitions of MADV_FREE and __NR_membarrier
MADV_FREE and __NR_membarrier are used internally by musl libc and therefore added to the crosvm seccomp policies by b/258117555, but are not defined by the old glibc prebuilts in the Android platform. Add defines for MADV_FREE and __NR_mmebarrier to gen_constants-inl.h and gen_syscalls-inl.h. Bug: 263152407 Test: launch_cvd --cpus=4 --memory_mb=4096 --console=true --enable_sandbox=true --base_instance_num=1 --report_anonymous_usage_stats=n --undefok=base_instance_num,console,enable_sandbox,report_anonymous_usage_stats Change-Id: I9633e7403f924cdf454c9dc3bebae7740f621091
-rw-r--r--gen_constants-inl.h4
-rw-r--r--gen_syscalls-inl.h10
2 files changed, 14 insertions, 0 deletions
diff --git a/gen_constants-inl.h b/gen_constants-inl.h
index f5fdd29..d09349c 100644
--- a/gen_constants-inl.h
+++ b/gen_constants-inl.h
@@ -73,3 +73,7 @@ struct fscrypt_policy_v1 {
#if !defined(FS_IOC_GET_ENCRYPTION_POLICY_EX)
#define FS_IOC_GET_ENCRYPTION_POLICY_EX _IOWR('f', 22, __u8[9])
#endif
+
+#if !defined(MADV_FREE)
+#define MADV_FREE 8
+#endif
diff --git a/gen_syscalls-inl.h b/gen_syscalls-inl.h
index 7a2f230..aee71e2 100644
--- a/gen_syscalls-inl.h
+++ b/gen_syscalls-inl.h
@@ -92,3 +92,13 @@
#endif
#endif /* __NR_rseq */
+
+#ifndef __NR_membarrier
+#ifdef __x86_64__
+#define __NR_membarrier 324
+#elif __i386__
+#define __NR_membarrier 375
+#elif __arm64__
+#define __NR_membarrier 283
+#endif
+#endif /* __NR_membarrier */