File gperftools-s390.patch of Package gperftools
commit bf8eacce69df877d1cecdab8c7a6cc3f218ebcc2
Author: Bryan Chan <bryanpkc@gmail.com>
Date: Wed Jun 15 00:10:45 2016 -0400
Add support for 31-bit s390; merge linux_syscall_support.h changes from upstream.
diff --git a/configure.ac b/configure.ac
index c7221ca..a688a25 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,8 +53,8 @@ case "$host" in
*-darwin*) default_enable_heap_checker=no;;
esac
-# Currently only backtrace works on s390x.
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __s390x__])],
+# Currently only backtrace works on s390.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __s390__])],
[default_enable_libunwind=no
default_enable_backtrace=yes],
[default_enable_libunwind=yes
diff --git a/m4/pc_from_ucontext.m4 b/m4/pc_from_ucontext.m4
index d743fa4..c9224bc 100644
--- a/m4/pc_from_ucontext.m4
+++ b/m4/pc_from_ucontext.m4
@@ -27,7 +27,7 @@ AC_DEFUN([AC_PC_FROM_UCONTEXT],
pc_fields="$pc_fields uc_mcontext.sc_ip" # Linux (ia64)
pc_fields="$pc_fields uc_mcontext.pc" # Linux (mips)
pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[[PT_NIP]]" # Linux (ppc)
- pc_fields="$pc_fields uc_mcontext.psw.addr" # Linux (s390x)
+ pc_fields="$pc_fields uc_mcontext.psw.addr" # Linux (s390)
pc_fields="$pc_fields uc_mcontext.gregs[[R15]]" # Linux (arm old [untested])
pc_fields="$pc_fields uc_mcontext.arm_pc" # Linux (arm arch 5)
pc_fields="$pc_fields uc_mcontext.gp_regs[[PT_NIP]]" # Suse SLES 11 (ppc64)
diff --git a/src/base/basictypes.h b/src/base/basictypes.h
index b628709..72c27b4 100644
--- a/src/base/basictypes.h
+++ b/src/base/basictypes.h
@@ -363,7 +363,7 @@ class AssignAttributeStartEnd {
# elif (defined(__aarch64__))
# define CACHELINE_ALIGNED __attribute__((aligned(64)))
// implementation specific, Cortex-A53 and 57 should have 64 bytes
-# elif (defined(__s390x__))
+# elif (defined(__s390__))
# define CACHELINE_ALIGNED __attribute__((aligned(256)))
# else
# error Could not determine cache line length - unknown architecture
diff --git a/src/base/linux_syscall_support.h b/src/base/linux_syscall_support.h
index 5d578cd..235f2ad 100644
--- a/src/base/linux_syscall_support.h
+++ b/src/base/linux_syscall_support.h
@@ -130,12 +130,13 @@
#ifndef SYS_LINUX_SYSCALL_SUPPORT_H
#define SYS_LINUX_SYSCALL_SUPPORT_H
-/* We currently only support x86-32, x86-64, ARM, MIPS, PPC/PPC64, Aarch64 and s390x on Linux.
+/* We currently only support x86-32, x86-64, ARM, MIPS, PPC/PPC64, Aarch64, s390 and s390x
+ * on Linux.
* Porting to other related platforms should not be difficult.
*/
#if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
defined(__mips__) || defined(__PPC__) || \
- defined(__aarch64__) || defined(__s390x__)) \
+ defined(__aarch64__) || defined(__s390__)) \
&& (defined(__linux))
#ifndef SYS_CPLUSPLUS
@@ -247,7 +248,8 @@ struct kernel_rusage {
long ru_nivcsw;
};
-#if defined(__i386__) || defined(__arm__) || defined(__PPC__)
+#if defined(__i386__) || defined(__arm__) \
+ || defined(__PPC__) || (defined(__s390__) && !defined(__s390x__))
/* include/asm-{arm,i386,mips,ppc}/signal.h */
struct kernel_old_sigaction {
@@ -261,8 +263,8 @@ struct kernel_old_sigaction {
} __attribute__((packed,aligned(4)));
#elif (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32)
#define kernel_old_sigaction kernel_sigaction
-#elif defined(__aarch64__) || defined(__s390x__)
- // No kernel_old_sigaction defined for arm64 or s390x.
+#elif defined(__aarch64__)
+ // No kernel_old_sigaction defined for arm64.
#endif
/* Some kernel functions (e.g. sigaction() in 2.6.23) require that the
@@ -306,7 +308,7 @@ struct kernel_sigaction {
#endif
};
-/* include/asm-{arm,i386,mips,ppc}/stat.h */
+/* include/asm-{arm,i386,mips,ppc,s390}/stat.h */
#ifdef __mips__
#if _MIPS_SIM == _MIPS_SIM_ABI64
struct kernel_stat {
@@ -514,6 +516,29 @@ struct kernel_stat {
long st_blocks;
unsigned long __unused[3];
};
+#elif defined(__s390__)
+struct kernel_stat {
+ unsigned short st_dev;
+ unsigned short __pad1;
+ unsigned long st_ino;
+ unsigned short st_mode;
+ unsigned short st_nlink;
+ unsigned short st_uid;
+ unsigned short st_gid;
+ unsigned short st_rdev;
+ unsigned short __pad2;
+ unsigned long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks;
+ unsigned long st_atime_;
+ unsigned long st_atime_nsec_;
+ unsigned long st_mtime_;
+ unsigned long st_mtime_nsec_;
+ unsigned long st_ctime_;
+ unsigned long st_ctime_nsec_;
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
#endif
@@ -728,7 +753,7 @@ struct kernel_stat {
#define __NR_fstatat 79
#endif
/* End of aarch64 defininitions */
-#elif defined(__s390x__)
+#elif defined(__s390__)
#ifndef __NR_quotactl
#define __NR_quotactl 131
#endif
@@ -753,27 +778,6 @@ struct kernel_stat {
#ifndef __NR_pwrite64
#define __NR_pwrite64 181
#endif
-#ifndef __NR_getrlimit
-#define __NR_getrlimit 191
-#endif
-#ifndef __NR_setresuid
-#define __NR_setresuid 208
-#endif
-#ifndef __NR_getresuid
-#define __NR_getresuid 209
-#endif
-#ifndef __NR_setresgid
-#define __NR_setresgid 210
-#endif
-#ifndef __NR_getresgid
-#define __NR_getresgid 211
-#endif
-#ifndef __NR_setfsuid
-#define __NR_setfsuid 215
-#endif
-#ifndef __NR_setfsgid
-#define __NR_setfsgid 216
-#endif
#ifndef __NR_getdents64
#define __NR_getdents64 220
#endif
@@ -816,9 +820,6 @@ struct kernel_stat {
#ifndef __NR_set_tid_address
#define __NR_set_tid_address 252
#endif
-#ifndef __NR_fadvise64
-#define __NR_fadvise64 253
-#endif
#ifndef __NR_clock_gettime
#define __NR_clock_gettime 260
#endif
@@ -840,9 +841,6 @@ struct kernel_stat {
#ifndef __NR_openat
#define __NR_openat 288
#endif
-#ifndef __NR_newfstatat
-#define __NR_newfstatat 293
-#endif
#ifndef __NR_unlinkat
#define __NR_unlinkat 294
#endif
@@ -855,7 +853,89 @@ struct kernel_stat {
#ifndef __NR_fallocate
#define __NR_fallocate 314
#endif
-/* End of s390x definitions */
+/* Some syscalls are named/numbered differently between s390 and s390x. */
+#ifdef __s390x__
+# ifndef __NR_getrlimit
+# define __NR_getrlimit 191
+# endif
+# ifndef __NR_setresuid
+# define __NR_setresuid 208
+# endif
+# ifndef __NR_getresuid
+# define __NR_getresuid 209
+# endif
+# ifndef __NR_setresgid
+# define __NR_setresgid 210
+# endif
+# ifndef __NR_getresgid
+# define __NR_getresgid 211
+# endif
+# ifndef __NR_setfsuid
+# define __NR_setfsuid 215
+# endif
+# ifndef __NR_setfsgid
+# define __NR_setfsgid 216
+# endif
+# ifndef __NR_fadvise64
+# define __NR_fadvise64 253
+# endif
+# ifndef __NR_newfstatat
+# define __NR_newfstatat 293
+# endif
+#else /* __s390x__ */
+# ifndef __NR_getrlimit
+# define __NR_getrlimit 76
+# endif
+# ifndef __NR_setfsuid
+# define __NR_setfsuid 138
+# endif
+# ifndef __NR_setfsgid
+# define __NR_setfsgid 139
+# endif
+# ifndef __NR_setresuid
+# define __NR_setresuid 164
+# endif
+# ifndef __NR_getresuid
+# define __NR_getresuid 165
+# endif
+# ifndef __NR_setresgid
+# define __NR_setresgid 170
+# endif
+# ifndef __NR_getresgid
+# define __NR_getresgid 171
+# endif
+# ifndef __NR_ugetrlimit
+# define __NR_ugetrlimit 191
+# endif
+# ifndef __NR_mmap2
+# define __NR_mmap2 192
+# endif
+# ifndef __NR_setresuid32
+# define __NR_setresuid32 208
+# endif
+# ifndef __NR_getresuid32
+# define __NR_getresuid32 209
+# endif
+# ifndef __NR_setresgid32
+# define __NR_setresgid32 210
+# endif
+# ifndef __NR_getresgid32
+# define __NR_getresgid32 211
+# endif
+# ifndef __NR_setfsuid32
+# define __NR_setfsuid32 215
+# endif
+# ifndef __NR_setfsgid32
+# define __NR_setfsgid32 216
+# endif
+# ifndef __NR_fadvise64_64
+# define __NR_fadvise64_64 264
+# endif
+# ifndef __NR_fstatat64
+# define __NR_fstatat64 293
+# endif
+#endif /* __s390__ */
+/* End of s390/s390x definitions */
#endif
@@ -919,7 +999,7 @@ struct kernel_stat {
#undef LSS_RETURN
#if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
- defined(__aarch64__) || defined(__s390x__))
+ defined(__aarch64__) || defined(__s390__))
/* Failing system calls return a negative result in the range of
* -1..-4095. These are "errno" values with the sign inverted.
*/
@@ -2236,19 +2316,20 @@ struct kernel_stat {
}
LSS_RETURN(int, __res);
}
- #elif defined(__s390x__)
+ #elif defined(__s390__)
#undef LSS_REG
#define LSS_REG(r, a) register unsigned long __r##r __asm__("r"#r) = (unsigned long) a
#undef LSS_BODY
#define LSS_BODY(type, name, args...) \
+ register unsigned long __nr __asm__("r1") \
+ = (unsigned long)(__NR_##name); \
register long __res_r2 __asm__("r2"); \
long __res; \
__asm__ __volatile__ \
- ("lgfi %%r1, %1\n\t" \
- "svc 0\n\t" \
- : "=&r"(__res_r2) \
- : "i"(__NR_##name), ## args \
- : "r1", "memory"); \
+ ("svc 0\n\t" \
+ : "=d"(__res_r2) \
+ : "d"(__nr), ## args \
+ : "memory"); \
__res = __res_r2; \
LSS_RETURN(type, __res)
#undef _syscall0
@@ -2266,13 +2347,13 @@ struct kernel_stat {
#define _syscall2(type, name, type1, arg1, type2, arg2) \
type LSS_NAME(name)(type1 arg1, type2 arg2) { \
LSS_REG(2, arg1); LSS_REG(3, arg2); \
- LSS_BODY(type, name, "0"(__r2), "r"(__r3)); \
+ LSS_BODY(type, name, "0"(__r2), "d"(__r3)); \
}
#undef _syscall3
#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \
LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3); \
- LSS_BODY(type, name, "0"(__r2), "r"(__r3), "r"(__r4)); \
+ LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4)); \
}
#undef _syscall4
#define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
@@ -2281,8 +2362,8 @@ struct kernel_stat {
type4 arg4) { \
LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3); \
LSS_REG(5, arg4); \
- LSS_BODY(type, name, "0"(__r2), "r"(__r3), "r"(__r4), \
- "r"(__r5)); \
+ LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4), \
+ "d"(__r5)); \
}
#undef _syscall5
#define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
@@ -2291,8 +2372,8 @@ struct kernel_stat {
type4 arg4, type5 arg5) { \
LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3); \
LSS_REG(5, arg4); LSS_REG(6, arg5); \
- LSS_BODY(type, name, "0"(__r2), "r"(__r3), "r"(__r4), \
- "r"(__r5), "r"(__r6)); \
+ LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4), \
+ "d"(__r5), "d"(__r6)); \
}
#undef _syscall6
#define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
@@ -2301,8 +2382,8 @@ struct kernel_stat {
type4 arg4, type5 arg5, type6 arg6) { \
LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3); \
LSS_REG(5, arg4); LSS_REG(6, arg5); LSS_REG(7, arg6); \
- LSS_BODY(type, name, "0"(__r2), "r"(__r3), "r"(__r4), \
- "r"(__r5), "r"(__r6), "r"(__r7)); \
+ LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4), \
+ "d"(__r5), "d"(__r6), "d"(__r7)); \
}
LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
int flags, void *arg, int *parent_tidptr,
@@ -2317,6 +2398,27 @@ struct kernel_stat {
register void *__newtls __asm__ ("r6") = newtls;
register int *__ctidptr __asm__ ("r5") = child_tidptr;
__asm__ __volatile__ (
+ #ifndef __s390x__
+ /* arg already in r0 */
+ "ltr %4, %4\n\t" /* check fn, which is already in r1 */
+ "jz 1f\n\t" /* NULL function pointer, return -EINVAL */
+ "ltr %5, %5\n\t" /* check child_stack, which is already in r2 */
+ "jz 1f\n\t" /* NULL stack pointer, return -EINVAL */
+ /* flags already in r3 */
+ /* parent_tidptr already in r4 */
+ /* child_tidptr already in r5 */
+ /* newtls already in r6 */
+ "svc %2\n\t" /* invoke clone syscall */
+ "ltr %0,%%r2\n\t" /* load return code into __ret and test */
+ "jnz 1f\n\t" /* return to parent if non-zero */
+ /* start child thread */
+ "lr %%r2, %7\n\t" /* set first parameter to void *arg */
+ "ahi %%r15, -96\n\t" /* make room on the stack for the save area */
+ "xc 0(4,%%r15), 0(%%r15)\n\t"
+ "basr %%r14, %4\n\t" /* jump to fn */
+ "svc %3\n" /* invoke exit syscall */
+ "1:\n"
+ #else
/* arg already in r0 */
"ltgr %4, %4\n\t" /* check fn, which is already in r1 */
"jz 1f\n\t" /* NULL function pointer, return -EINVAL */
@@ -2335,12 +2437,12 @@ struct kernel_stat {
"xc 0(8,%%r15), 0(%%r15)\n\t"
"basr %%r14, %4\n\t" /* jump to fn */
"svc %3\n" /* invoke exit syscall */
-
"1:\n"
+ #endif
: "=r" (__ret)
: "0" (-EINVAL), "i" (__NR_clone), "i" (__NR_exit),
- "r" (__fn), "r" (__cstack), "r" (__flags), "r" (__arg),
- "r" (__ptidptr), "r" (__newtls), "r" (__ctidptr)
+ "d" (__fn), "d" (__cstack), "d" (__flags), "d" (__arg),
+ "d" (__ptidptr), "d" (__newtls), "d" (__ctidptr)
: "cc", "r14", "memory"
);
}
@@ -2429,18 +2531,6 @@ struct kernel_stat {
int, t, int, p)
#endif
#if defined(__x86_64__) || defined(__s390x__)
- #if defined(__s390x__)
- LSS_INLINE _syscall1(void*, mmap, void*, a)
- #else
- /* Need to make sure __off64_t isn't truncated to 32-bits under x32. */
- LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
- __off64_t o) {
- LSS_BODY(6, void*, mmap, LSS_SYSCALL_ARG(s), LSS_SYSCALL_ARG(l),
- LSS_SYSCALL_ARG(p), LSS_SYSCALL_ARG(f),
- LSS_SYSCALL_ARG(d), (uint64_t)(o));
- }
- #endif
-
LSS_INLINE int LSS_NAME(sigaction)(int signum,
const struct kernel_sigaction *act,
struct kernel_sigaction *oldact) {
@@ -2458,10 +2548,8 @@ struct kernel_stat {
(KERNEL_NSIG+7)/8);
} else
#endif
- {
return LSS_NAME(rt_sigaction)(signum, act, oldact,
(KERNEL_NSIG+7)/8);
- }
}
LSS_INLINE int LSS_NAME(sigprocmask)(int how,
@@ -2542,26 +2630,30 @@ struct kernel_stat {
}
}
- #if defined(__i386__) || \
- defined(__arm__) || \
- (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || defined(__PPC__)
+ #if defined(__i386__) || \
+ defined(__arm__) || \
+ (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || \
+ defined(__PPC__) || \
+ (defined(__s390__) && !defined(__s390x__))
#define __NR__sigaction __NR_sigaction
#define __NR__sigprocmask __NR_sigprocmask
LSS_INLINE _syscall2(int, fstat64, int, f,
struct kernel_stat64 *, b)
LSS_INLINE _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
loff_t *, res, uint, wh)
-#ifdef __PPC64__
- LSS_INLINE _syscall6(void*, mmap, void*, s,
- size_t, l, int, p,
- int, f, int, d,
- off_t, o)
-#else
- #ifndef __ARM_EABI__
- /* Not available on ARM EABI Linux. */
- LSS_INLINE _syscall1(void*, mmap, void*, a)
- #endif
- LSS_INLINE _syscall6(void*, mmap2, void*, s,
+#if defined(__s390__) && !defined(__s390x__)
+ /* On s390, mmap2() arguments are passed in memory. */
+ LSS_INLINE void* LSS_NAME(_mmap2)(void *s, size_t l, int p, int f, int d,
+ off_t o) {
+ unsigned long buf[6] = { (unsigned long) s, (unsigned long) l,
+ (unsigned long) p, (unsigned long) f,
+ (unsigned long) d, (unsigned long) o };
+ LSS_REG(2, buf);
+ LSS_BODY(void*, mmap2, "0"(__r2));
+ }
+#elif !defined(__PPC64__)
+ #define __NR__mmap2 __NR_mmap2
+ LSS_INLINE _syscall6(void*, _mmap2, void*, s,
size_t, l, int, p,
int, f, int, d,
off_t, o)
@@ -2654,11 +2746,48 @@ struct kernel_stat {
return rc;
}
#endif
+ #if defined(__i386__) || \
+ defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) || \
+ (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || \
+ (defined(__PPC__) && !defined(__PPC64__)) || \
+ (defined(__s390__) && !defined(__s390x__))
+ /* On these architectures, implement mmap() with mmap2(). */
+ LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+ int64_t o) {
+ if (o % 4096) {
+ LSS_ERRNO = EINVAL;
+ return (void *) -1;
+ }
+ return LSS_NAME(_mmap2)(s, l, p, f, d, (o / 4096));
+ }
+ #elif defined(__s390x__)
+ /* On s390x, mmap() arguments are passed in memory. */
+ LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+ int64_t o) {
+ unsigned long buf[6] = { (unsigned long) s, (unsigned long) l,
+ (unsigned long) p, (unsigned long) f,
+ (unsigned long) d, (unsigned long) o };
+ LSS_REG(2, buf);
+ LSS_BODY(void*, mmap, "0"(__r2));
+ }
+ #elif defined(__x86_64__)
+ /* Need to make sure __off64_t isn't truncated to 32-bits under x32. */
+ LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+ int64_t o) {
+ LSS_BODY(6, void*, mmap, LSS_SYSCALL_ARG(s), LSS_SYSCALL_ARG(l),
+ LSS_SYSCALL_ARG(p), LSS_SYSCALL_ARG(f),
+ LSS_SYSCALL_ARG(d), (uint64_t)(o));
+ }
+ #else
+ /* Remaining 64-bit architectures. */
+ LSS_INLINE _syscall6(void*, mmap, void*, addr, size_t, length, int, prot,
+ int, flags, int, fd, int64_t, offset)
+ #endif
#if defined(__i386__) || \
defined(__PPC__) || \
(defined(__arm__) && !defined(__ARM_EABI__)) || \
(defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || \
- defined(__s390x__)
+ defined(__s390__)
/* See sys_socketcall in net/socket.c in kernel source.
* It de-multiplexes on its first arg and unpacks the arglist
diff --git a/src/base/linuxthreads.h b/src/base/linuxthreads.h
index b715190..09ce45f 100644
--- a/src/base/linuxthreads.h
+++ b/src/base/linuxthreads.h
@@ -42,7 +42,7 @@
*/
#if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) || \
defined(__mips__) || defined(__PPC__) || defined(__aarch64__) || \
- defined(__s390x__)) && defined(__linux)
+ defined(__s390__)) && defined(__linux)
/* Define the THREADS symbol to make sure that there is exactly one core dumper
* built into the library.
diff --git a/src/getpc.h b/src/getpc.h
index 25fee39..163873e 100644
--- a/src/getpc.h
+++ b/src/getpc.h
@@ -179,7 +179,12 @@ inline void* GetPC(const struct ucontext_t& signal_ucontext) {
// configure.ac (or set it manually in your config.h).
#else
inline void* GetPC(const ucontext_t& signal_ucontext) {
+#if defined(__s390__) && !defined(__s390x__)
+ // Mask out the AMODE31 bit from the PC recorded in the context.
+ return (void*)((unsigned long)signal_ucontext.PC_FROM_UCONTEXT & 0x7fffffffUL);
+#else
return (void*)signal_ucontext.PC_FROM_UCONTEXT; // defined in config.h
+#endif
}
#endif
diff --git a/src/malloc_hook_mmap_linux.h b/src/malloc_hook_mmap_linux.h
index 1c4c766..4b13861 100755
--- a/src/malloc_hook_mmap_linux.h
+++ b/src/malloc_hook_mmap_linux.h
@@ -52,7 +52,7 @@
// I test for 64-bit first so I don't have to do things like
// '#if (defined(__mips__) && !defined(__MIPS64__))' as a mips32 check.
-#if defined(__x86_64__) || defined(__PPC64__) || defined(__aarch64__) || (defined(_MIPS_SIM) && _MIPS_SIM == _ABI64)
+#if defined(__x86_64__) || defined(__PPC64__) || defined(__aarch64__) || (defined(_MIPS_SIM) && _MIPS_SIM == _ABI64) || defined(__s390__)
static inline void* do_mmap64(void *start, size_t length,
int prot, int flags,
@@ -119,20 +119,6 @@ static inline void* do_mmap64(void *start, size_t length,
#define MALLOC_HOOK_HAVE_DO_MMAP64 1
-#elif defined(__s390x__)
-
-static inline void* do_mmap64(void *start, size_t length,
- int prot, int flags,
- int fd, __off64_t offset) __THROW {
- // mmap on s390x uses the old syscall interface
- unsigned long args[6] = { (unsigned long) start, (unsigned long) length,
- (unsigned long) prot, (unsigned long) flags,
- (unsigned long) fd, (unsigned long) offset };
- return sys_mmap(args);
-}
-
-#define MALLOC_HOOK_HAVE_DO_MMAP64 1
-
#endif // #if defined(__x86_64__)
