diff options
| author | Kamil Rytarowski <n54@gmx.com> | 2017-08-04 22:23:52 +0000 |
|---|---|---|
| committer | Kamil Rytarowski <n54@gmx.com> | 2017-08-04 22:23:52 +0000 |
| commit | 62ccbaa636912dc96859f08dccbd849f3108200a (patch) | |
| tree | e04e6692ad7161e0b207da9ca5b9f256cd2a394f /lib/sanitizer_common/sanitizer_syscall_generic.inc | |
| parent | fc2d319eaa67535ca9470cecc9db7863ac185883 (diff) | |
Add NetBSD support in sanitizer_syscall_generic.inc
Summary:
This adds:
- NetBSD specific aliases for renamed syscalls,
- differentiate internal_syscall, internal_syscall64, internal_syscall_ptr as there are various types of syscalls on NetBSD.
Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas.
Sponsored by <The NetBSD Foundation>
Reviewers: joerg, kcc, vitalybuka, filcab
Reviewed By: vitalybuka
Subscribers: kubamracek, llvm-commits, #sanitizers
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D36316
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@310139 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_syscall_generic.inc')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_syscall_generic.inc | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/lib/sanitizer_common/sanitizer_syscall_generic.inc b/lib/sanitizer_common/sanitizer_syscall_generic.inc index 15cf05f06..b1a5941a5 100644 --- a/lib/sanitizer_common/sanitizer_syscall_generic.inc +++ b/lib/sanitizer_common/sanitizer_syscall_generic.inc @@ -7,17 +7,41 @@ // //===----------------------------------------------------------------------===// // -// Generic implementations of internal_syscall and internal_iserror. +// Generic implementations of internal_syscall* and internal_iserror. // //===----------------------------------------------------------------------===// -#if SANITIZER_FREEBSD || SANITIZER_MAC +#if SANITIZER_FREEBSD || SANITIZER_MAC || SANITIZER_NETBSD # define SYSCALL(name) SYS_ ## name #else # define SYSCALL(name) __NR_ ## name #endif -#if (SANITIZER_FREEBSD || SANITIZER_MAC) && defined(__x86_64__) +#if SANITIZER_NETBSD +// We use 3 kinds of internal_syscall's for different types of retval in order +// to address differences in calling conventions (e.g. registers to place the +// return value in). +// - internal_syscall for 32-bit length (int, pid_t) +// - internal_syscall64 for 64-bit length (off_t) +// - internal_syscall_ptr for pointer and (s)size_t +# define internal_syscall syscall +# define internal_syscall64 __syscall +// Handle syscall renames manually +# define SYS_stat SYS___stat50 +# define SYS_lstat SYS___lstat50 +# define SYS_fstat SYS___fstat50 +# define SYS_gettimeofday SYS___gettimeofday50 +# define SYS_wait4 SYS___wait450 +# define SYS_getdents SYS___getdents30 +# define SYS_sigaltstack SYS___sigaltstack14 +# define SYS_sigprocmask SYS___sigprocmask14 +# define SYS_nanosleep SYS___nanosleep50 +# if SANITIZER_WORDSIZE == 64 +# define internal_syscall_ptr __syscall +# else +# define internal_syscall_ptr syscall +# endif +#elif defined(__x86_64__) && (SANITIZER_FREEBSD || SANITIZER_MAC) # define internal_syscall __syscall # else # define internal_syscall syscall |