Merge changes between r23097 and r23217 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@23218 7b3dc134-2b1b-0410-93df-9e9f96275f8d

7 files changed, 109 insertions, 21 deletions

diff --git a/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/siginfo.h b/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/siginfo.h
index 12778856f..49ca82647 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/siginfo.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/siginfo.h
@@ -89,6 +89,8 @@ typedef struct
 	struct
 	  {
 	    void *si_addr;	/* Faulting insn/memory ref.  */
+	    int si_trapno;	/* TRAP # which caused the signal.  */
+	    short int si_addr_lsb;	/* Valid LSB of the reported address.  */
 	  } _sigfault;
 
 	/* SIGPOLL.  */
@@ -121,6 +123,8 @@ typedef struct
 # define si_int		_sifields._rt.si_sigval.sival_int
 # define si_ptr		_sifields._rt.si_sigval.sival_ptr
 # define si_addr	_sifields._sigfault.si_addr
+# define si_trapno	_sifields._sigfault.si_trapno
+# define si_addr_lsb	_sifields._sigfault.si_addr_lsb
 # define si_band	_sifields._sigpoll.si_band
 # define si_fd		_sifields._sigpoll.si_fd
 # define si_call_addr 	_sifields._sigsys._call_addr
@@ -211,8 +215,12 @@ enum
 # define BUS_ADRALN	BUS_ADRALN
   BUS_ADRERR,			/* Non-existant physical address.  */
 # define BUS_ADRERR	BUS_ADRERR
-  BUS_OBJERR			/* Object specific hardware error.  */
+  BUS_OBJERR,			/* Object specific hardware error.  */
 # define BUS_OBJERR	BUS_OBJERR
+  BUS_MCEERR_AR,		/* Hardware memory error: action required.  */
+# define BUS_MCEERR_AR	BUS_MCEERR_AR
+  BUS_MCEERR_AO			/* Hardware memory error: action optional.  */
+# define BUS_MCEERR_AO	BUS_MCEERR_AO
 };
 
 /* `si_code' values for SIGTRAP signal.  */
diff --git a/libc/ports/sysdeps/unix/sysv/linux/ia64/bits/siginfo.h b/libc/ports/sysdeps/unix/sysv/linux/ia64/bits/siginfo.h
index 7887b4554..5fa97b5d5 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/ia64/bits/siginfo.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/ia64/bits/siginfo.h
@@ -94,6 +94,7 @@ typedef struct siginfo
 	    int _si_imm;
 	    unsigned int _si_flags;
 	    unsigned long int _si_isr;
+	    short int si_addr_lsb;	/* Valid LSB of the reported address.  */
 	  } _sigfault;
 
 	/* SIGPOLL.  */
@@ -118,6 +119,7 @@ typedef struct siginfo
 # define si_int		_sifields._rt.si_sigval.sival_int
 # define si_ptr		_sifields._rt.si_sigval.sival_ptr
 # define si_addr	_sifields._sigfault.si_addr
+# define si_addr_lsb	_sifields._sigfault.si_addr_lsb
 # define si_band	_sifields._sigpoll.si_band
 # define si_fd		_sifields._sigpoll.si_fd
 
@@ -233,8 +235,12 @@ enum
 # define BUS_ADRALN	BUS_ADRALN
   BUS_ADRERR,			/* Non-existant physical address.  */
 # define BUS_ADRERR	BUS_ADRERR
-  BUS_OBJERR			/* Object specific hardware error.  */
+  BUS_OBJERR,			/* Object specific hardware error.  */
 # define BUS_OBJERR	BUS_OBJERR
+  BUS_MCEERR_AR,		/* Hardware memory error: action required.  */
+# define BUS_MCEERR_AR	BUS_MCEERR_AR
+  BUS_MCEERR_AO			/* Hardware memory error: action optional.  */
+# define BUS_MCEERR_AO	BUS_MCEERR_AO
 };
 
 /* `si_code' values for SIGTRAP signal.  */
diff --git a/libc/ports/sysdeps/unix/sysv/linux/mips/bits/siginfo.h b/libc/ports/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
index 56ae34c03..a9a845a61 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/mips/bits/siginfo.h
@@ -98,6 +98,7 @@ typedef struct
 	struct
 	  {
 	    void *si_addr;	/* Faulting insn/memory ref.  */
+	    short int si_addr_lsb;	/* Valid LSB of the reported address.  */
 	  } _sigfault;
 
 	/* SIGPOLL.  */
@@ -122,6 +123,7 @@ typedef struct
 # define si_int		_sifields._rt.si_sigval.sival_int
 # define si_ptr		_sifields._rt.si_sigval.sival_ptr
 # define si_addr	_sifields._sigfault.si_addr
+# define si_addr_lsb	_sifields._sigfault.si_addr_lsb
 # define si_band	_sifields._sigpoll.si_band
 # define si_fd		_sifields._sigpoll.si_fd
 
@@ -209,8 +211,12 @@ enum
 # define BUS_ADRALN	BUS_ADRALN
   BUS_ADRERR,			/* Non-existant physical address.  */
 # define BUS_ADRERR	BUS_ADRERR
-  BUS_OBJERR			/* Object specific hardware error.  */
+  BUS_OBJERR,			/* Object specific hardware error.  */
 # define BUS_OBJERR	BUS_OBJERR
+  BUS_MCEERR_AR,		/* Hardware memory error: action required.  */
+# define BUS_MCEERR_AR	BUS_MCEERR_AR
+  BUS_MCEERR_AO			/* Hardware memory error: action optional.  */
+# define BUS_MCEERR_AO	BUS_MCEERR_AO
 };
 
 /* `si_code' values for SIGTRAP signal.  */
diff --git a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
index 452c2c70e..b2a9a9579 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
@@ -39,9 +39,7 @@
 
 /* We don't want the label for the error handler to be visible in the symbol
    table when we define it here.  */
-#ifdef __PIC__
 # define SYSCALL_ERROR_LABEL 99b
-#endif
 
 #else   /* ! __ASSEMBLER__ */
 
diff --git a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
index d16ed6941..844a7e880 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
@@ -39,9 +39,7 @@
 
 /* We don't want the label for the error handler to be visible in the symbol
    table when we define it here.  */
-#ifdef __PIC__
 # define SYSCALL_ERROR_LABEL 99b
-#endif
 
 #else   /* ! __ASSEMBLER__ */
 
diff --git a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
index 656522566..157cc3825 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/nptl/sysdep-cancel.h
@@ -101,13 +101,64 @@
     cfi_same_value (gp);						      \
     RESTORESTK;								      \
   L(pseudo_end):
-
+#else
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				      \
+      .align 2;								      \
+  L(pseudo_start):							      \
+      cfi_startproc;							      \
+      cfi_adjust_cfa_offset (STKSPACE);					      \
+  99: RESTORESTK;							      \
+      j __syscall_error;						      \
+  .type __##syscall_name##_nocancel, @function;				      \
+  .globl __##syscall_name##_nocancel;					      \
+  __##syscall_name##_nocancel:						      \
+    SAVESTK;								      \
+    li v0, SYS_ify(syscall_name);					      \
+    syscall;								      \
+    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
+    RESTORESTK;								      \
+    ret;								      \
+    cfi_endproc;							      \
+  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
+  ENTRY (name)								      \
+    SAVESTK;								      \
+    SINGLE_THREAD_P(v1);						      \
+    bne zero, v1, L(pseudo_cancel);					      \
+    .set noreorder;							      \
+    li v0, SYS_ify(syscall_name);					      \
+    syscall;								      \
+    .set reorder;							      \
+    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
+    RESTORESTK;								      \
+    ret;								      \
+  L(pseudo_cancel):							      \
+    cfi_adjust_cfa_offset (STKSPACE);					      \
+    REG_S ra, STKOFF_RA(sp);						      \
+    cfi_rel_offset (ra, STKOFF_RA);					      \
+    PUSHARGS_##args;			/* save syscall args */	      	      \
+    CENABLE;								      \
+    REG_S v0, STKOFF_SVMSK(sp);		/* save mask */			      \
+    POPARGS_##args;			/* restore syscall args */	      \
+    .set noreorder;							      \
+    li v0, SYS_ify (syscall_name);				      	      \
+    syscall;								      \
+    .set reorder;							      \
+    REG_S v0, STKOFF_SC_V0(sp);		/* save syscall result */             \
+    REG_S a3, STKOFF_SC_ERR(sp);	/* save syscall error flag */	      \
+    REG_L a0, STKOFF_SVMSK(sp);		/* pass mask as arg1 */		      \
+    CDISABLE;								      \
+    REG_L a3, STKOFF_SC_ERR(sp);	/* restore syscall error flag */      \
+    REG_L ra, STKOFF_RA(sp);		/* restore return address */	      \
+    REG_L v0, STKOFF_SC_V0(sp);		/* restore syscall result */          \
+    bne a3, zero, SYSCALL_ERROR_LABEL;					      \
+    RESTORESTK;								      \
+  L(pseudo_end):
+#endif
 
 # undef PSEUDO_END
 # define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
 
-#endif
-
 # define PUSHARGS_0	/* nothing to do */
 # define PUSHARGS_1	PUSHARGS_0 REG_S a0, STKOFF_A0(sp); cfi_rel_offset (a0, STKOFF_A0);
 # define PUSHARGS_2	PUSHARGS_1 REG_S a1, STKOFF_A1(sp); cfi_rel_offset (a1, STKOFF_A1);
@@ -126,7 +177,11 @@
 
 /* Save an even number of slots.  Should be 0 if an even number of slots
    are used below, or SZREG if an odd number are used.  */
-# define STK_PAD	SZREG
+# ifdef __PIC__
+#  define STK_PAD	SZREG
+# else
+#  define STK_PAD	0
+# endif
 
 /* Place values that we are more likely to use later in this sequence, i.e.
    closer to the SP at function entry.  If you do that, the are more
@@ -141,21 +196,32 @@
 # define STKOFF_SC_V0	(STKOFF_RA + SZREG)	/* Used if MT.  */
 # define STKOFF_SC_ERR	(STKOFF_SC_V0 + SZREG)	/* Used if MT.  */
 # define STKOFF_SVMSK	(STKOFF_SC_ERR + SZREG)	/* Used if MT.  */
-# define STKOFF_GP	(STKOFF_SVMSK + SZREG)	/* Always used.  */
 
-# define STKSPACE	(STKOFF_GP + SZREG)
+# ifdef __PIC__
+#  define STKOFF_GP	(STKOFF_SVMSK + SZREG)	/* Always used.  */
+#  define STKSPACE	(STKOFF_GP + SZREG)
+# else
+#  define STKSPACE	(STKOFF_SVMSK + SZREG)
+# endif
+
 # define SAVESTK 	PTR_SUBU sp, STKSPACE; cfi_adjust_cfa_offset(STKSPACE)
 # define RESTORESTK 	PTR_ADDU sp, STKSPACE; cfi_adjust_cfa_offset(-STKSPACE)
 
+# ifdef __PIC__
+#  define PSEUDO_JMP(sym) PTR_LA t9, sym; jalr t9
+# else
+#  define PSEUDO_JMP(sym) jal sym
+# endif
+
 # ifdef IS_IN_libpthread
-#  define CENABLE	PTR_LA t9, __pthread_enable_asynccancel; jalr t9
-#  define CDISABLE	PTR_LA t9, __pthread_disable_asynccancel; jalr t9
+#  define CENABLE	PSEUDO_JMP (__pthread_enable_asynccancel)
+#  define CDISABLE	PSEUDO_JMP (__pthread_disable_asynccancel)
 # elif defined IS_IN_librt
-#  define CENABLE	PTR_LA t9, __librt_enable_asynccancel; jalr t9
-#  define CDISABLE	PTR_LA t9, __librt_disable_asynccancel; jalr t9
+#  define CENABLE	PSEUDO_JMP (__librt_enable_asynccancel)
+#  define CDISABLE	PSEUDO_JMP (__librt_disable_asynccancel)
 # else
-#  define CENABLE	PTR_LA t9, __libc_enable_asynccancel; jalr t9
-#  define CDISABLE	PTR_LA t9, __libc_disable_asynccancel; jalr t9
+#  define CENABLE	PSEUDO_JMP (__libc_enable_asynccancel)
+#  define CDISABLE	PSEUDO_JMP (__libc_disable_asynccancel)
 # endif
 
 # ifndef __ASSEMBLER__
diff --git a/libc/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h b/libc/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h
index 4ad1a5db6..7b40f3db0 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/tile/bits/siginfo.h
@@ -95,7 +95,8 @@ typedef struct
 	struct
 	  {
 	    void *si_addr;	/* Faulting insn/memory ref.  */
-	    int si_trapno;	/* TRAP # which caused the signal */
+	    int si_trapno;	/* TRAP # which caused the signal.  */
+	    short int si_addr_lsb;	/* Valid LSB of the reported address.  */
 	  } _sigfault;
 
 	/* SIGPOLL.  */
@@ -129,6 +130,7 @@ typedef struct
 # define si_ptr		_sifields._rt.si_sigval.sival_ptr
 # define si_addr	_sifields._sigfault.si_addr
 # define si_trapno	_sifields._sigfault.si_trapno
+# define si_addr_lsb	_sifields._sigfault.si_addr_lsb
 # define si_band	_sifields._sigpoll.si_band
 # define si_fd		_sifields._sigpoll.si_fd
 # define si_call_addr 	_sifields._sigsys._call_addr
@@ -223,8 +225,12 @@ enum
 # define BUS_ADRALN	BUS_ADRALN
   BUS_ADRERR,			/* Non-existant physical address.  */
 # define BUS_ADRERR	BUS_ADRERR
-  BUS_OBJERR			/* Object specific hardware error.  */
+  BUS_OBJERR,			/* Object specific hardware error.  */
 # define BUS_OBJERR	BUS_OBJERR
+  BUS_MCEERR_AR,		/* Hardware memory error: action required.  */
+# define BUS_MCEERR_AR	BUS_MCEERR_AR
+  BUS_MCEERR_AO			/* Hardware memory error: action optional.  */
+# define BUS_MCEERR_AO	BUS_MCEERR_AO
 };
 
 /* `si_code' values for SIGTRAP signal.  */