[Sanitizers] Add support for RISC-V 64-bit
Summary:
This has been tested with gcc trunk on openSUSE Tumbleweed on the HiFive Unleashed.
Patch by Andreas Schwab (schwab)
Reviewers: luismarques
Reviewed By: luismarques
Subscribers: mhorne, emaste, luismarques, asb, mgorny, fedor.sergeev, simoncook, kito-cheng, shiva0217, rogfer01, rkruppe, lenary, s.egerton, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D66870
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@375132 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 875acc8..a15fd48 100644
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -256,7 +256,7 @@
set(X86_64 x86_64 x86_64h)
endif()
-set(ALL_SANITIZER_COMMON_SUPPORTED_ARCH ${X86} ${X86_64} ${PPC64}
+set(ALL_SANITIZER_COMMON_SUPPORTED_ARCH ${X86} ${X86_64} ${PPC64} ${RISCV64}
${ARM32} ${ARM64} ${MIPS32} ${MIPS64} ${S390X} ${SPARC} ${SPARCV9})
set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
${MIPS32} ${MIPS64} ${PPC64} ${S390X} ${SPARC} ${SPARCV9})
@@ -290,7 +290,7 @@
set(ALL_PROFILE_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${PPC64}
${MIPS32} ${MIPS64} ${S390X} ${SPARC} ${SPARCV9})
set(ALL_TSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})
-set(ALL_UBSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
+set(ALL_UBSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${RISCV64}
${MIPS32} ${MIPS64} ${PPC64} ${S390X} ${SPARC} ${SPARCV9})
set(ALL_SAFESTACK_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM64} ${MIPS32} ${MIPS64})
set(ALL_CFI_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${MIPS64})
diff --git a/lib/sanitizer_common/sanitizer_linux.cpp b/lib/sanitizer_common/sanitizer_linux.cpp
index 0b53da6..3807a79 100644
--- a/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/lib/sanitizer_common/sanitizer_linux.cpp
@@ -407,7 +407,10 @@
}
uptr internal_rename(const char *oldpath, const char *newpath) {
-#if SANITIZER_USES_CANONICAL_LINUX_SYSCALLS || SANITIZER_OPENBSD
+#if defined(__riscv)
+ return internal_syscall(SYSCALL(renameat2), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
+ (uptr)newpath, 0);
+#elif SANITIZER_USES_CANONICAL_LINUX_SYSCALLS || SANITIZER_OPENBSD
return internal_syscall(SYSCALL(renameat), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
(uptr)newpath);
#else
@@ -1972,6 +1975,11 @@
# endif
*bp = ucontext->uc_mcontext.gregs[11];
*sp = ucontext->uc_mcontext.gregs[15];
+#elif defined(__riscv)
+ ucontext_t *ucontext = (ucontext_t*)context;
+ *pc = ucontext->uc_mcontext.__gregs[REG_PC];
+ *bp = ucontext->uc_mcontext.__gregs[REG_S0];
+ *sp = ucontext->uc_mcontext.__gregs[REG_SP];
#else
# error "Unsupported arch"
#endif
diff --git a/lib/sanitizer_common/sanitizer_platform.h b/lib/sanitizer_common/sanitizer_platform.h
index b45c975..c68bfa2 100644
--- a/lib/sanitizer_common/sanitizer_platform.h
+++ b/lib/sanitizer_common/sanitizer_platform.h
@@ -255,11 +255,11 @@
#define SANITIZER_SIGN_EXTENDED_ADDRESSES 0
#endif
-// The AArch64 linux port uses the canonical syscall set as mandated by
-// the upstream linux community for all new ports. Other ports may still
-// use legacy syscalls.
+// The AArch64 and RISC-V linux ports use the canonical syscall set as
+// mandated by the upstream linux community for all new ports. Other ports
+// may still use legacy syscalls.
#ifndef SANITIZER_USES_CANONICAL_LINUX_SYSCALLS
-# if defined(__aarch64__) && SANITIZER_LINUX
+# if (defined(__aarch64__) || defined(__riscv)) && SANITIZER_LINUX
# define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 1
# else
# define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 0
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_linux.cpp b/lib/sanitizer_common/sanitizer_platform_limits_linux.cpp
index 842bc78..c51327e 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_linux.cpp
+++ b/lib/sanitizer_common/sanitizer_platform_limits_linux.cpp
@@ -65,7 +65,7 @@
#if !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__aarch64__)\
&& !defined(__mips__) && !defined(__s390__)\
- && !defined(__sparc__)
+ && !defined(__sparc__) && !defined(__riscv)
COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat));
#endif
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp b/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
index 84058c7..278baa6 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
@@ -230,7 +230,7 @@
// has been removed from glibc 2.28.
#if defined(__aarch64__) || defined(__s390x__) || defined (__mips64) \
|| defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) \
- || defined(__x86_64__)
+ || defined(__x86_64__) || (defined(__riscv) && __riscv_xlen == 64)
#define SIZEOF_STRUCT_USTAT 32
#elif defined(__arm__) || defined(__i386__) || defined(__mips__) \
|| defined(__powerpc__) || defined(__s390__) || defined(__sparc__)
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
index db2c4f0..7789bc5 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -98,6 +98,9 @@
const unsigned struct___old_kernel_stat_sz = 0;
const unsigned struct_kernel_stat_sz = 64;
const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__riscv) && __riscv_xlen == 64
+const unsigned struct_kernel_stat_sz = 128;
+const unsigned struct_kernel_stat64_sz = 104;
#endif
struct __sanitizer_perf_event_attr {
unsigned type;
