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[sanitizer] [SystemZ] Add ptrace support bits.

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Differential Revision: http://reviews.llvm.org/D19134

llvm-svn: 267548
This commit is contained in:
Marcin Koscielnicki
2016-04-26 10:41:30 +00:00
parent f98076b6a1
commit 7ecdeb7ac3
8 changed files with 52 additions and 7 deletions
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4
compiler-rt/lib/sanitizer_common/sanitizer_common_syscalls.inc
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@@ -2301,7 +2301,7 @@ POST_SYSCALL(ni_syscall)(long res) {}
PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
#if !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__))
defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__))
if (data) {
if (request == ptrace_setregs) {
PRE_READ((void *)data, struct_user_regs_struct_sz);
@@ -2322,7 +2322,7 @@ PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
#if !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__))
defined(__powerpc64__) || defined(__aarch64__) || defined(__s390__))
if (res >= 0 && data) {
// Note that this is different from the interceptor in
// sanitizer_common_interceptors.inc.

3
compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h
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@@ -149,7 +149,8 @@
#define SANITIZER_INTERCEPT_READDIR64 SI_LINUX_NOT_ANDROID
#if SI_LINUX_NOT_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__))
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
defined(__s390__))
#define SANITIZER_INTERCEPT_PTRACE 1
#else
#define SANITIZER_INTERCEPT_PTRACE 0

9
compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
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@@ -311,23 +311,28 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
#if SANITIZER_LINUX && !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__))
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
defined(__s390__))
#if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
#elif defined(__aarch64__)
unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
#elif defined(__s390__)
unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
#else
unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
#endif // __mips64 || __powerpc64__ || __aarch64__
#if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
defined(__aarch64__) || defined(__arm__)
defined(__aarch64__) || defined(__arm__) || defined(__s390__)
unsigned struct_user_fpxregs_struct_sz = 0;
#else
unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
#endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
// || __s390__
#ifdef __arm__
unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
#else

3
compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h
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@@ -760,7 +760,8 @@ namespace __sanitizer {
#if SANITIZER_LINUX && !SANITIZER_ANDROID && \
(defined(__i386) || defined(__x86_64) || defined(__mips64) || \
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__))
defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
defined(__s390__))
extern unsigned struct_user_regs_struct_sz;
extern unsigned struct_user_fpregs_struct_sz;
extern unsigned struct_user_fpxregs_struct_sz;

9
compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
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@@ -15,7 +15,8 @@
#include "sanitizer_platform.h"
#if SANITIZER_LINUX && (defined(__x86_64__) || defined(__mips__) || \
defined(__aarch64__) || defined(__powerpc64__))
defined(__aarch64__) || defined(__powerpc64__) || \
defined(__s390__))
#include "sanitizer_stoptheworld.h"
@@ -481,6 +482,11 @@ typedef struct user_pt_regs regs_struct;
#define REG_SP sp
#define ARCH_IOVEC_FOR_GETREGSET
#elif defined(__s390__)
typedef _user_regs_struct regs_struct;
#define REG_SP gprs[15]
#define ARCH_IOVEC_FOR_GETREGSET
#else
#error "Unsupported architecture"
#endif // SANITIZER_ANDROID && defined(__arm__)
@@ -520,3 +526,4 @@ uptr SuspendedThreadsList::RegisterCount() {
#endif // SANITIZER_LINUX && (defined(__x86_64__) || defined(__mips__)
// || defined(__aarch64__) || defined(__powerpc64__)
// || defined(__s390__)

4
compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cc
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@@ -213,6 +213,10 @@ class LLVMSymbolizerProcess : public SymbolizerProcess {
const char* const kSymbolizerArch = "--default-arch=powerpc64";
#elif defined(__powerpc64__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
const char* const kSymbolizerArch = "--default-arch=powerpc64le";
#elif defined(__s390x__)
const char* const kSymbolizerArch = "--default-arch=s390x";
#elif defined(__s390__)
const char* const kSymbolizerArch = "--default-arch=s390";
#else
const char* const kSymbolizerArch = "--default-arch=unknown";
#endif

7
compiler-rt/test/asan/TestCases/Linux/ptrace.cc
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@@ -59,6 +59,13 @@ typedef char fpregs_struct[ARM_VFPREGS_SIZE];
#define PRINT_REG_PC(__regs) printf ("%x\n", (unsigned) (__regs.ARM_pc))
#define PRINT_REG_FP(__fpregs) printf ("%x\n", (unsigned) (__fpregs + 32 * 8))
#define __PTRACE_FPREQUEST PTRACE_GETVFPREGS
#elif defined(__s390__)
typedef _user_regs_struct regs_struct;
typedef _user_fpregs_struct fpregs_struct;
#define PRINT_REG_PC(__regs) printf ("%lx\n", (unsigned long) (__regs.psw.addr))
#define PRINT_REG_FP(__fpregs) printf ("%lx\n", (unsigned long) (__fpregs.fpc))
#define ARCH_IOVEC_FOR_GETREGSET
#endif

20
compiler-rt/test/sanitizer_common/TestCases/Linux/ptrace.cc
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@@ -92,6 +92,26 @@ int main(void) {
printf("%x\n", fpregs.fpsr);
#endif // (__aarch64__)
#if (__s390__)
struct iovec regset_io;
struct _user_regs_struct regs;
regset_io.iov_base = &regs;
regset_io.iov_len = sizeof(regs);
res = ptrace(PTRACE_GETREGSET, pid, (void*)NT_PRSTATUS, (void*)&regset_io);
assert(!res);
if (regs.psw.addr)
printf("%lx\n", regs.psw.addr);
struct _user_fpregs_struct fpregs;
regset_io.iov_base = &fpregs;
regset_io.iov_len = sizeof(fpregs);
res = ptrace(PTRACE_GETREGSET, pid, (void*)NT_FPREGSET, (void*)&regset_io);
assert(!res);
if (fpregs.fpc)
printf("%x\n", fpregs.fpc);
#endif // (__s390__)
siginfo_t siginfo;
res = ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo);
assert(!res);