aboutsummaryrefslogtreecommitdiff
path: root/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp')
-rw-r--r--compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp104
1 files changed, 78 insertions, 26 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
index be37fd7f68b3..dc2ea933fadc 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
@@ -78,6 +78,10 @@
#include <sys/personality.h>
#endif
+#if SANITIZER_LINUX && defined(__loongarch__)
+# include <sys/sysmacros.h>
+#endif
+
#if SANITIZER_FREEBSD
#include <sys/exec.h>
#include <sys/procctl.h>
@@ -188,6 +192,8 @@ ScopedBlockSignals::~ScopedBlockSignals() { SetSigProcMask(&saved_, nullptr); }
# include "sanitizer_syscall_linux_arm.inc"
# elif SANITIZER_LINUX && defined(__hexagon__)
# include "sanitizer_syscall_linux_hexagon.inc"
+# elif SANITIZER_LINUX && SANITIZER_LOONGARCH64
+# include "sanitizer_syscall_linux_loongarch64.inc"
# else
# include "sanitizer_syscall_generic.inc"
# endif
@@ -290,6 +296,28 @@ static void stat64_to_stat(struct stat64 *in, struct stat *out) {
}
#endif
+#if SANITIZER_LINUX && defined(__loongarch__)
+static void statx_to_stat(struct statx *in, struct stat *out) {
+ internal_memset(out, 0, sizeof(*out));
+ out->st_dev = makedev(in->stx_dev_major, in->stx_dev_minor);
+ out->st_ino = in->stx_ino;
+ out->st_mode = in->stx_mode;
+ out->st_nlink = in->stx_nlink;
+ out->st_uid = in->stx_uid;
+ out->st_gid = in->stx_gid;
+ out->st_rdev = makedev(in->stx_rdev_major, in->stx_rdev_minor);
+ out->st_size = in->stx_size;
+ out->st_blksize = in->stx_blksize;
+ out->st_blocks = in->stx_blocks;
+ out->st_atime = in->stx_atime.tv_sec;
+ out->st_atim.tv_nsec = in->stx_atime.tv_nsec;
+ out->st_mtime = in->stx_mtime.tv_sec;
+ out->st_mtim.tv_nsec = in->stx_mtime.tv_nsec;
+ out->st_ctime = in->stx_ctime.tv_sec;
+ out->st_ctim.tv_nsec = in->stx_ctime.tv_nsec;
+}
+#endif
+
#if SANITIZER_MIPS64
// Undefine compatibility macros from <sys/stat.h>
// so that they would not clash with the kernel_stat
@@ -341,52 +369,65 @@ static void kernel_stat_to_stat(struct kernel_stat *in, struct stat *out) {
#endif
uptr internal_stat(const char *path, void *buf) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf, 0);
-# elif SANITIZER_LINUX
-# if (SANITIZER_WORDSIZE == 64 || SANITIZER_X32 || \
+# elif SANITIZER_LINUX
+# if defined(__loongarch__)
+ struct statx bufx;
+ int res = internal_syscall(SYSCALL(statx), AT_FDCWD, (uptr)path,
+ AT_NO_AUTOMOUNT, STATX_BASIC_STATS, (uptr)&bufx);
+ statx_to_stat(&bufx, (struct stat *)buf);
+ return res;
+# elif (SANITIZER_WORDSIZE == 64 || SANITIZER_X32 || \
(defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
- !SANITIZER_SPARC
+ !SANITIZER_SPARC
return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
0);
-# else
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstatat64), AT_FDCWD, (uptr)path,
(uptr)&buf64, 0);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
-# else
+# endif
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(stat64), path, &buf64);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
+# endif
}
uptr internal_lstat(const char *path, void *buf) {
-#if SANITIZER_FREEBSD
+# if SANITIZER_FREEBSD
return internal_syscall(SYSCALL(fstatat), AT_FDCWD, (uptr)path, (uptr)buf,
AT_SYMLINK_NOFOLLOW);
-# elif SANITIZER_LINUX
-# if (defined(_LP64) || SANITIZER_X32 || \
+# elif SANITIZER_LINUX
+# if defined(__loongarch__)
+ struct statx bufx;
+ int res = internal_syscall(SYSCALL(statx), AT_FDCWD, (uptr)path,
+ AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT,
+ STATX_BASIC_STATS, (uptr)&bufx);
+ statx_to_stat(&bufx, (struct stat *)buf);
+ return res;
+# elif (defined(_LP64) || SANITIZER_X32 || \
(defined(__mips__) && _MIPS_SIM == _ABIN32)) && \
- !SANITIZER_SPARC
+ !SANITIZER_SPARC
return internal_syscall(SYSCALL(newfstatat), AT_FDCWD, (uptr)path, (uptr)buf,
AT_SYMLINK_NOFOLLOW);
-# else
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstatat64), AT_FDCWD, (uptr)path,
(uptr)&buf64, AT_SYMLINK_NOFOLLOW);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
-# else
+# endif
+# else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(lstat64), path, &buf64);
stat64_to_stat(&buf64, (struct stat *)buf);
return res;
-# endif
+# endif
}
uptr internal_fstat(fd_t fd, void *buf) {
@@ -397,9 +438,15 @@ uptr internal_fstat(fd_t fd, void *buf) {
int res = internal_syscall(SYSCALL(fstat), fd, &kbuf);
kernel_stat_to_stat(&kbuf, (struct stat *)buf);
return res;
-# else
+# elif SANITIZER_LINUX && defined(__loongarch__)
+ struct statx bufx;
+ int res = internal_syscall(SYSCALL(statx), fd, 0, AT_EMPTY_PATH,
+ STATX_BASIC_STATS, (uptr)&bufx);
+ statx_to_stat(&bufx, (struct stat *)buf);
+ return res;
+# else
return internal_syscall(SYSCALL(fstat), fd, (uptr)buf);
-# endif
+# endif
#else
struct stat64 buf64;
int res = internal_syscall(SYSCALL(fstat64), fd, &buf64);
@@ -445,15 +492,15 @@ uptr internal_unlink(const char *path) {
}
uptr internal_rename(const char *oldpath, const char *newpath) {
-#if defined(__riscv) && defined(__linux__)
+# if (defined(__riscv) || defined(__loongarch__)) && defined(__linux__)
return internal_syscall(SYSCALL(renameat2), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
(uptr)newpath, 0);
-# elif SANITIZER_LINUX
+# elif SANITIZER_LINUX
return internal_syscall(SYSCALL(renameat), AT_FDCWD, (uptr)oldpath, AT_FDCWD,
(uptr)newpath);
-# else
+# else
return internal_syscall(SYSCALL(rename), (uptr)oldpath, (uptr)newpath);
-# endif
+# endif
}
uptr internal_sched_yield() {
@@ -763,14 +810,14 @@ uptr internal_lseek(fd_t fd, OFF_T offset, int whence) {
uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
return internal_syscall(SYSCALL(prctl), option, arg2, arg3, arg4, arg5);
}
-# if defined(__x86_64__)
-#include <asm/unistd_64.h>
+# if defined(__x86_64__)
+# include <asm/unistd_64.h>
// Currently internal_arch_prctl() is only needed on x86_64.
uptr internal_arch_prctl(int option, uptr arg2) {
return internal_syscall(__NR_arch_prctl, option, arg2);
}
-# endif
-#endif
+# endif
+# endif
uptr internal_sigaltstack(const void *ss, void *oss) {
return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
@@ -2176,6 +2223,11 @@ static void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
*pc = ucontext->uc_mcontext.pc;
*bp = ucontext->uc_mcontext.r30;
*sp = ucontext->uc_mcontext.r29;
+# elif defined(__loongarch__)
+ ucontext_t *ucontext = (ucontext_t *)context;
+ *pc = ucontext->uc_mcontext.__pc;
+ *bp = ucontext->uc_mcontext.__gregs[22];
+ *sp = ucontext->uc_mcontext.__gregs[3];
# else
# error "Unsupported arch"
# endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-13 20:17:35 +0000