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-rw-r--r--sysdeps/unix/sysv/linux/dl-osinfo.h131
-rw-r--r--sysdeps/unix/sysv/linux/mips/bits/siginfo.h9
-rw-r--r--sysdeps/unix/sysv/linux/mips/clone.S60
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips32/sysdep.h295
-rw-r--r--sysdeps/unix/sysv/linux/mips/vfork.S98
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/clone.S8
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/getcontext.S16
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/setcontext.S12
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/swapcontext.S10
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/sysdep.h12
10 files changed, 412 insertions, 239 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-osinfo.h b/sysdeps/unix/sysv/linux/dl-osinfo.h
index abc67fcdcf..dfb4cde72d 100644
--- a/sysdeps/unix/sysv/linux/dl-osinfo.h
+++ b/sysdeps/unix/sysv/linux/dl-osinfo.h
@@ -1,5 +1,5 @@
-/* Operating system specific code for generic dynamic loader functions.
- Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
+/* Operating system specific code for generic dynamic loader functions. Linux.
+ Copyright (C) 2000,2001,2002,2004,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -22,6 +22,7 @@
#include <sys/sysctl.h>
#include <sys/utsname.h>
#include "kernel-features.h"
+#include <dl-sysdep.h>
#ifndef MIN
# define MIN(a,b) (((a)<(b))?(a):(b))
@@ -39,71 +40,79 @@ dl_fatal (const char *str)
}
#endif
+static inline int __attribute__ ((always_inline))
+_dl_discover_osversion (void)
+{
+ char bufmem[64];
+ char *buf = bufmem;
+ unsigned int version;
+ int parts;
+ char *cp;
+ struct utsname uts;
+
+ /* Try the uname system call. */
+ if (__uname (&uts))
+ {
+ /* This was not successful. Now try reading the /proc filesystem. */
+ int fd = __open ("/proc/sys/kernel/osrelease", O_RDONLY);
+ if (fd < 0)
+ return -1;
+ ssize_t reslen = __read (fd, bufmem, sizeof (bufmem));
+ __close (fd);
+ if (reslen <= 0)
+ /* This also didn't work. We give up since we cannot
+ make sure the library can actually work. */
+ return -1;
+ buf[MIN (reslen, (ssize_t) sizeof (bufmem) - 1)] = '\0';
+ }
+ else
+ buf = uts.release;
+
+ /* Now convert it into a number. The string consists of at most
+ three parts. */
+ version = 0;
+ parts = 0;
+ cp = buf;
+ while ((*cp >= '0') && (*cp <= '9'))
+ {
+ unsigned int here = *cp++ - '0';
+
+ while ((*cp >= '0') && (*cp <= '9'))
+ {
+ here *= 10;
+ here += *cp++ - '0';
+ }
+
+ ++parts;
+ version <<= 8;
+ version |= here;
-#define DL_SYSDEP_OSCHECK(FATAL) \
+ if (*cp++ != '.')
+ /* Another part following? */
+ break;
+ }
+
+ if (parts < 3)
+ version <<= 8 * (3 - parts);
+
+ return version;
+}
+
+#define DL_SYSDEP_OSCHECK(FATAL) \
do { \
- /* Test whether the kernel is new enough. This test is only \
- performed if the library is not compiled to run on all \
- kernels. */ \
- if (__LINUX_KERNEL_VERSION > 0) \
- { \
- char bufmem[64]; \
- char *buf = bufmem; \
- unsigned int version; \
- int parts; \
- char *cp; \
- struct utsname uts; \
+ /* Test whether the kernel is new enough. This test is only performed \
+ if the library is not compiled to run on all kernels. */ \
\
- /* Try the uname syscall */ \
- if (__uname (&uts)) \
- { \
- /* This was not successful. Now try reading the /proc \
- filesystem. */ \
- ssize_t reslen; \
- int fd = __open ("/proc/sys/kernel/osrelease", O_RDONLY); \
- if (fd == -1 \
- || (reslen = __read (fd, bufmem, sizeof (bufmem))) <= 0) \
- /* This also didn't work. We give up since we cannot \
- make sure the library can actually work. */ \
- FATAL ("FATAL: cannot determine kernel version\n"); \
- __close (fd); \
- buf[MIN (reslen, (ssize_t) sizeof (bufmem) - 1)] = '\0'; \
- } \
- else \
- buf = uts.release; \
- \
- /* Now convert it into a number. The string consists of at most \
- three parts. */ \
- version = 0; \
- parts = 0; \
- cp = buf; \
- while ((*cp >= '0') && (*cp <= '9')) \
- { \
- unsigned int here = *cp++ - '0'; \
- \
- while ((*cp >= '0') && (*cp <= '9')) \
- { \
- here *= 10; \
- here += *cp++ - '0'; \
- } \
- \
- ++parts; \
- version <<= 8; \
- version |= here; \
- \
- if (*cp++ != '.') \
- /* Another part following? */ \
- break; \
- } \
- \
- if (parts < 3) \
- version <<= 8 * (3 - parts); \
+ int version = _dl_discover_osversion (); \
+ if (__builtin_expect (version >= 0, 1)) \
+ { \
+ GLRO(dl_osversion) = version; \
\
/* Now we can test with the required version. */ \
- if (version < __LINUX_KERNEL_VERSION) \
+ if (__LINUX_KERNEL_VERSION > 0 && version < __LINUX_KERNEL_VERSION) \
/* Not sufficent. */ \
FATAL ("FATAL: kernel too old\n"); \
- \
- GLRO(dl_osversion) = version; \
} \
+ else if (__LINUX_KERNEL_VERSION > 0) \
+ FATAL ("FATAL: cannot determine kernel version\n"); \
} while (0)
diff --git a/sysdeps/unix/sysv/linux/mips/bits/siginfo.h b/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
index 54eba41d6e..787e365139 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
@@ -1,5 +1,5 @@
/* siginfo_t, sigevent and constants. Linux/MIPS version.
- Copyright (C) 1997, 1998, 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -300,10 +300,11 @@ enum
# define SIGEV_SIGNAL SIGEV_SIGNAL
SIGEV_NONE, /* Other notification: meaningless. */
# define SIGEV_NONE SIGEV_NONE
- SIGEV_CALLBACK, /* Deliver via thread creation. */
-# define SIGEV_CALLBACK SIGEV_CALLBACK
- SIGEV_THREAD /* Deliver via thread creation. */
+ SIGEV_THREAD, /* Deliver via thread creation. */
# define SIGEV_THREAD SIGEV_THREAD
+
+ SIGEV_THREAD_ID = 4 /* Send signal to specific thread. */
+#define SIGEV_THREAD_ID SIGEV_THREAD_ID
};
#endif /* have _SIGNAL_H. */
diff --git a/sysdeps/unix/sysv/linux/mips/clone.S b/sysdeps/unix/sysv/linux/mips/clone.S
index 043f5921cb..8b8e0072f5 100644
--- a/sysdeps/unix/sysv/linux/mips/clone.S
+++ b/sysdeps/unix/sysv/linux/mips/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2000, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2000, 2003, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ralf Baechle <ralf@linux-mips.org>, 1996.
@@ -24,11 +24,23 @@
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
+#ifdef RESET_PID
+#include <tls.h>
+#endif
+
+#define CLONE_VM 0x00000100
+#define CLONE_THREAD 0x00010000
-/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) */
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+ void *parent_tidptr, void *tls, void *child_tidptr) */
.text
-LOCALSZ= 1
+#if _MIPS_SIM == _ABIO32
+# define EXTRA_LOCALS 1
+#else
+# define EXTRA_LOCALS 0
+#endif
+LOCALSZ= 4
FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
GPOFF= FRAMESZ-(1*SZREG)
NESTED(__clone,4*SZREG,sp)
@@ -56,10 +68,26 @@ NESTED(__clone,4*SZREG,sp)
PTR_SUBU a1,32 /* Reserve argument save space. */
PTR_S a0,0(a1) /* Save function pointer. */
PTR_S a3,PTRSIZE(a1) /* Save argument pointer. */
+#ifdef RESET_PID
+ LONG_S a2,(PTRSIZE*2)(a1) /* Save clone flags. */
+#endif
+ move a0,a2
+
+ /* Shuffle in the last three arguments - arguments 5, 6, and 7 to
+ this function, but arguments 3, 4, and 5 to the syscall. */
+#if _MIPS_SIM == _ABIO32
+ PTR_L a2,(FRAMESZ+PTRSIZE+PTRSIZE+16)(sp)
+ PTR_S a2,16(sp)
+ PTR_L a2,(FRAMESZ+16)(sp)
+ PTR_L a3,(FRAMESZ+PTRSIZE+16)(sp)
+#else
+ move a2,a4
+ move a3,a5
+ move a4,a6
+#endif
/* Do the system call */
- move a0,a2
li v0,__NR_clone
syscall
@@ -94,6 +122,15 @@ L(thread_start):
/* cp is already loaded. */
SAVE_GP (GPOFF)
/* The stackframe has been created on entry of clone(). */
+
+#ifdef RESET_PID
+ /* Check and see if we need to reset the PID. */
+ LONG_L a0,(PTRSIZE*2)(sp)
+ and a1,a0,CLONE_THREAD
+ beqz a1,L(restore_pid)
+L(donepid):
+#endif
+
/* Restore the arg for user's function. */
PTR_L t9,0(sp) /* Function pointer. */
PTR_L a0,PTRSIZE(sp) /* Argument pointer. */
@@ -109,6 +146,21 @@ L(thread_start):
#else
jal _exit
#endif
+
+#ifdef RESET_PID
+L(restore_pid):
+ and a1,a0,CLONE_VM
+ li v0,-1
+ bnez a1,L(gotpid)
+ li v0,__NR_getpid
+ syscall
+L(gotpid):
+ READ_THREAD_POINTER(v1)
+ INT_S v0,PID_OFFSET(v1)
+ INT_S v0,TID_OFFSET(v1)
+ b L(donepid)
+#endif
+
END(__thread_start)
weak_alias(__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
index 5eaf7a276b..3da2412259 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -48,12 +48,12 @@
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ INTERNAL_SYSCALL_DECL(err); \
- long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
- if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
- { \
- __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
- result_var = -1L; \
- } \
+ long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
+ if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
+ result_var = -1L; \
+ } \
result_var; })
#undef INTERNAL_SYSCALL_DECL
@@ -66,209 +66,218 @@
#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
#undef INTERNAL_SYSCALL
-#define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(name, err, args)
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ internal_syscall##nr (, "li\t$2, %2\t\t\t# " #name "\n\t", \
+ "i" (SYS_ify (name)), err, args)
-#define internal_syscall0(name, err, dummy...) \
-({ \
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ internal_syscall##nr (= number, , "r" (__v0), err, args)
+
+#define internal_syscall0(ncs_init, cs_init, input, err, dummy...) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %2\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set reorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall1(name, err, arg1) \
-({ \
+#define internal_syscall1(ncs_init, cs_init, input, err, arg1) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %3\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set reorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall2(name, err, arg1, arg2) \
-({ \
+#define internal_syscall2(ncs_init, cs_init, input, err, arg1, arg2) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %4\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall3(name, err, arg1, arg2, arg3) \
-({ \
+#define internal_syscall3(ncs_init, cs_init, input, err, arg1, arg2, arg3)\
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \
-({ \
+#define internal_syscall4(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4)\
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \
-({ \
+/* We need to use a frame pointer for the functions in which we
+ adjust $sp around the syscall, or debug information and unwind
+ information will be $sp relative and thus wrong during the syscall. As
+ of GCC 3.4.3, this is sufficient. */
+#define FORCE_FRAME_POINTER alloca (4)
+
+#define internal_syscall5(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\
-({ \
+#define internal_syscall6(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "lw\t$8, %7\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "sw\t$8, 20($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5), "m" ((long)arg6) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ "sw\t%7, 20($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5), "r" ((long)arg6) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall7(name, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
-({ \
+#define internal_syscall7(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "lw\t$8, %7\n\t" \
- "lw\t$9, %8\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "sw\t$8, 20($29)\n\t" \
- "sw\t$9, 24($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5), "m" ((long)arg6), "m" ((long)arg7) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ "sw\t%7, 20($29)\n\t" \
+ "sw\t%8, 24($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5), "r" ((long)arg6), "r" ((long)arg7) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
diff --git a/sysdeps/unix/sysv/linux/mips/vfork.S b/sysdeps/unix/sysv/linux/mips/vfork.S
new file mode 100644
index 0000000000..1383ddc6a7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/vfork.S
@@ -0,0 +1,98 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* vfork() is just a special case of clone(). */
+
+#include <sys/asm.h>
+#include <sysdep.h>
+#include <asm/unistd.h>
+#include <sgidefs.h>
+
+#ifndef SAVE_PID
+#define SAVE_PID
+#endif
+
+#ifndef RESTORE_PID
+#define RESTORE_PID
+#endif
+
+
+/* int vfork() */
+
+ .text
+LOCALSZ= 1
+FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
+GPOFF= FRAMESZ-(1*SZREG)
+NESTED(__vfork,FRAMESZ,sp)
+#ifdef __PIC__
+ SETUP_GP
+#endif
+ PTR_SUBU sp, FRAMESZ
+ SETUP_GP64 (a5, __vfork)
+#ifdef __PIC__
+ SAVE_GP (GPOFF)
+#endif
+#ifdef PROF
+# if (_MIPS_SIM != _ABIO32)
+ PTR_S a5, GPOFF(sp)
+# endif
+ .set noat
+ move $1, ra
+# if (_MIPS_SIM == _ABIO32)
+ subu sp,sp,8
+# endif
+ jal _mcount
+ .set at
+# if (_MIPS_SIM != _ABIO32)
+ PTR_L a5, GPOFF(sp)
+# endif
+#endif
+
+ PTR_ADDU sp, FRAMESZ
+
+ SAVE_PID
+
+ li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
+ move a1, sp
+
+ /* Do the system call */
+ li v0,__NR_clone
+ syscall
+
+ RESTORE_PID
+
+ bnez a3,L(error)
+
+ /* Successful return from the parent or child. */
+ RESTORE_GP64
+ ret
+
+ /* Something bad happened -- no child created. */
+L(error):
+#ifdef __PIC__
+ PTR_LA t9, __syscall_error
+ RESTORE_GP64
+ jr t9
+#else
+ RESTORE_GP64
+ j __syscall_error
+#endif
+ END(__vfork)
+
+libc_hidden_def(__vfork)
+weak_alias(__vfork, vfork)
diff --git a/sysdeps/unix/sysv/linux/x86_64/clone.S b/sysdeps/unix/sysv/linux/x86_64/clone.S
index 9695e1eaf8..8a12b09035 100644
--- a/sysdeps/unix/sysv/linux/x86_64/clone.S
+++ b/sysdeps/unix/sysv/linux/x86_64/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -74,7 +74,7 @@ ENTRY (BP_SYM (__clone))
movq %r8, %rdx
movq %r9, %r8
movq 8(%rsp), %r10
- movq $SYS_ify(clone),%rax
+ movl $SYS_ify(clone),%eax
/* End FDE now, because in the child the unwind info will be
wrong. */
@@ -91,7 +91,7 @@ L(pseudo_end):
L(thread_start):
/* Clear the frame pointer. The ABI suggests this be done, to mark
the outermost frame obviously. */
- xorq %rbp, %rbp
+ xorl %ebp, %ebp
#ifdef RESET_PID
testq $CLONE_THREAD, %rdi
@@ -99,7 +99,7 @@ L(thread_start):
testq $CLONE_VM, %rdi
movl $-1, %eax
jne 2f
- movq $SYS_ify(getpid), %rax
+ movl $SYS_ify(getpid), %eax
syscall
2: movl %eax, %fs:PID
movl %eax, %fs:TID
diff --git a/sysdeps/unix/sysv/linux/x86_64/getcontext.S b/sysdeps/unix/sysv/linux/x86_64/getcontext.S
index 2f2c710040..d19c9f0d09 100644
--- a/sysdeps/unix/sysv/linux/x86_64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/getcontext.S
@@ -1,5 +1,5 @@
/* Save current context.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002.
@@ -67,16 +67,20 @@ ENTRY(__getcontext)
/* Save the current signal mask with
rt_sigprocmask (SIG_BLOCK, NULL, set,_NSIG/8). */
leaq oSIGMASK(%rdi), %rdx
- xorq %rsi,%rsi
- movq $SIG_BLOCK, %rdi
- movq $_NSIG8,%r10
- movq $__NR_rt_sigprocmask, %rax
+ xorl %esi,%esi
+#if SIG_BLOCK == 0
+ xorl %edi, %edi
+#else
+ movl $SIG_BLOCK, %edi
+#endif
+ movl $_NSIG8,%r10d
+ movl $__NR_rt_sigprocmask, %eax
syscall
cmpq $-4095, %rax /* Check %rax for error. */
jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */
/* All done, return 0 for success. */
- xorq %rax, %rax
+ xorl %eax, %eax
L(pseudo_end):
ret
PSEUDO_END(__getcontext)
diff --git a/sysdeps/unix/sysv/linux/x86_64/setcontext.S b/sysdeps/unix/sysv/linux/x86_64/setcontext.S
index 65c03d8a01..51e4a50712 100644
--- a/sysdeps/unix/sysv/linux/x86_64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/setcontext.S
@@ -1,5 +1,5 @@
/* Install given context.
- Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002.
@@ -40,10 +40,10 @@ ENTRY(__setcontext)
/* Set the signal mask with
rt_sigprocmask (SIG_SETMASK, mask, NULL, _NSIG/8). */
leaq oSIGMASK(%rdi), %rsi
- xorq %rdx, %rdx
- movq $SIG_SETMASK, %rdi
- movq $_NSIG8,%r10
- movq $__NR_rt_sigprocmask, %rax
+ xorl %edx, %edx
+ movl $SIG_SETMASK, %edi
+ movl $_NSIG8,%r10d
+ movl $__NR_rt_sigprocmask, %eax
syscall
popq %rdi /* Reload %rdi, adjust stack. */
cfi_adjust_cfa_offset(-8)
@@ -96,7 +96,7 @@ ENTRY(__setcontext)
cfi_startproc
/* Clear rax to indicate success. */
- xorq %rax, %rax
+ xorl %eax, %eax
L(pseudo_end):
ret
diff --git a/sysdeps/unix/sysv/linux/x86_64/swapcontext.S b/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
index 4394e2ae9f..8d48d3bd5e 100644
--- a/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/x86_64/swapcontext.S
@@ -1,5 +1,5 @@
/* Save current context and install the given one.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002.
@@ -73,9 +73,9 @@ ENTRY(__swapcontext)
rt_sigprocmask (SIG_BLOCK, newset, oldset,_NSIG/8). */
leaq oSIGMASK(%rdi), %rdx
leaq oSIGMASK(%rsi), %rsi
- movq $SIG_SETMASK, %rdi
- movq $_NSIG8,%r10
- movq $__NR_rt_sigprocmask, %rax
+ movl $SIG_SETMASK, %edi
+ movl $_NSIG8,%r10d
+ movl $__NR_rt_sigprocmask, %eax
syscall
cmpq $-4095, %rax /* Check %rax for error. */
jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */
@@ -114,7 +114,7 @@ ENTRY(__swapcontext)
movq oRSI(%rsi), %rsi
/* Clear rax to indicate success. */
- xorq %rax, %rax
+ xorl %eax, %eax
L(pseudo_end):
ret
diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h
index fd92d7ae16..0dc2f2750e 100644
--- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001,02,03,04 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -119,7 +119,7 @@
# define SYSCALL_ERROR_HANDLER \
0: \
leaq rtld_errno(%rip), %rcx; \
- xorq %rdx, %rdx; \
+ xorl %edx, %edx; \
subq %rax, %rdx; \
movl %edx, (%rcx); \
orq $-1, %rax; \
@@ -133,7 +133,7 @@
# define SYSCALL_ERROR_HANDLER \
0: \
movq SYSCALL_ERROR_ERRNO@GOTTPOFF(%rip), %rcx;\
- xorq %rdx, %rdx; \
+ xorl %edx, %edx; \
subq %rax, %rdx; \
movl %edx, %fs:(%rcx); \
orq $-1, %rax; \
@@ -143,7 +143,7 @@
Note that errno occupies only 4 bytes. */
# define SYSCALL_ERROR_HANDLER \
0: \
- xorq %rdx, %rdx; \
+ xorl %edx, %edx; \
subq %rax, %rdx; \
pushq %rdx; \
cfi_adjust_cfa_offset(8); \
@@ -161,7 +161,7 @@
#else /* Not _LIBC_REENTRANT. */
# define SYSCALL_ERROR_HANDLER \
0:movq errno@GOTPCREL(%RIP), %rcx; \
- xorq %rdx, %rdx; \
+ xorl %edx, %edx; \
subq %rax, %rdx; \
movl %edx, (%rcx); \
orq $-1, %rax; \
@@ -208,7 +208,7 @@
#undef DO_CALL
#define DO_CALL(syscall_name, args) \
DOARGS_##args \
- movq $SYS_ify (syscall_name), %rax; \
+ movl $SYS_ify (syscall_name), %eax; \
syscall;
#define DOARGS_0 /* nothing */
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-01-16 04:52:16 +0000