runtime: fix arm build

R=adg, dfc, r
CC=golang-dev
https://golang.org/cl/4296042

src/pkg/runtime/arm/traceback.c

@@ -14,7 +14,7 @@ void _mod(void);
 void _divu(void);
 void _modu(void);
 
-static int32
+int32
 runtime·gentraceback(byte *pc0, byte *sp, byte *lr0, G *g, int32 skip, uintptr *pcbuf, int32 max)
 {
 	int32 i, n, iter;

src/pkg/runtime/linux/arm/defs.h

-// godefs -carm-gcc -f -I/usr/local/google/src/linux-2.6.28/arch/arm/include -f -I/usr/local/google/src/linux-2.6.28/include -f-D__KERNEL__ -f-D__ARCH_SI_UID_T=int defs_arm.c
+// godefs -f-I/usr/src/linux-headers-2.6.26-2-versatile/include defs_arm.c
 
 // MACHINE GENERATED - DO NOT EDIT.
 
@@ -58,23 +58,15 @@ enum {
 	BUS_OBJERR = 0x3,
 	SEGV_MAPERR = 0x1,
 	SEGV_ACCERR = 0x2,
+	ITIMER_REAL = 0,
+	ITIMER_PROF = 0x2,
+	ITIMER_VIRTUAL = 0x1,
 };
 
 // Types
 #pragma pack on
 
-typedef struct Sigset Sigset;
-struct Sigset {
-	uint32 sig[2];
-};
-
-typedef struct Sigaction Sigaction;
-struct Sigaction {
-	void *sa_handler;
-	uint32 sa_flags;
-	void *sa_restorer;
-	Sigset sa_mask;
-};
+typedef uint32 Sigset;
 
 typedef struct Timespec Timespec;
 struct Timespec {
@@ -120,11 +112,23 @@ struct Ucontext {
 	Ucontext *uc_link;
 	Sigaltstack uc_stack;
 	Sigcontext uc_mcontext;
-	Sigset uc_sigmask;
-	int32 __unused[30];
+	uint32 uc_sigmask;
+	int32 __unused[31];
 	uint32 uc_regspace[128];
 };
 
+typedef struct Timeval Timeval;
+struct Timeval {
+	int32 tv_sec;
+	int32 tv_usec;
+};
+
+typedef struct Itimerval Itimerval;
+struct Itimerval {
+	Timeval it_interval;
+	Timeval it_value;
+};
+
 typedef struct Siginfo Siginfo;
 struct Siginfo {
 	int32 si_signo;
@@ -132,4 +136,12 @@ struct Siginfo {
 	int32 si_code;
 	uint8 _sifields[4];
 };
+
+typedef struct Sigaction Sigaction;
+struct Sigaction {
+	void *sa_handler;
+	uint32 sa_flags;
+	void *sa_restorer;
+	uint32 sa_mask;
+};
 #pragma pack off

src/pkg/runtime/linux/arm/signal.c

@@ -135,7 +135,7 @@ sigaction(int32 i, void (*fn)(int32, Siginfo*, void*, G*), bool restart)
 		sa.sa_flags |= SA_RESTART;
 	sa.sa_mask = ~0ULL;
 	sa.sa_restorer = (void*)runtime·sigreturn;
-	sa.k_sa_handler = fn;
+	sa.sa_handler = fn;
 	runtime·rt_sigaction(i, &sa, nil, 8);
 }
 
@@ -163,7 +163,6 @@ runtime·initsig(int32 queue)
 void
 runtime·resetcpuprofiler(int32 hz)
 {
-	Sigaction sa;
 	Itimerval it;
 	
 	runtime·memclr((byte*)&it, sizeof it);

src/pkg/runtime/linux/arm/sys.s

@@ -73,10 +73,10 @@ TEXT runtime·munmap(SB),7,$0
 	SWI	$0
 	RET
 
-TEXT runtime·getitimer(SB),7,$0
+TEXT runtime·setitimer(SB),7,$0
 	MOVW	0(FP), R0
 	MOVW	4(FP), R1
-	MOWW	8(FP), R2
+	MOVW	8(FP), R2
 	MOVW	$SYS_setitimer, R7
 	SWI	$0
 	RET

src/pkg/runtime/linux/defs_arm.c

@@ -4,16 +4,18 @@
 
 /*
  * Input to godefs
-	godefs -carm-gcc -f -I/usr/local/google/src/linux-2.6.28/arch/arm/include -f -I/usr/local/google/src/linux-2.6.28/include -f-D__KERNEL__ -f-D__ARCH_SI_UID_T=int defs_arm.c >arm/defs.h
-
- * Another input file for ARM defs.h
+ * On a Debian Lenny arm linux distribution:
+	godefs -f-I/usr/src/linux-headers-2.6.26-2-versatile/include defs_arm.c
  */
 
+#define __ARCH_SI_UID_T int
+
 #include <asm/signal.h>
 #include <asm/mman.h>
 #include <asm/sigcontext.h>
 #include <asm/ucontext.h>
 #include <asm/siginfo.h>
+#include <linux/time.h>
 
 /*
 #include <sys/signal.h>
@@ -21,8 +23,6 @@
 #include <ucontext.h>
 */
 
-#include <time.h>
-
 enum {
 	$PROT_NONE = PROT_NONE,
 	$PROT_READ = PROT_READ,
@@ -84,14 +84,19 @@ enum {
 	
 	$SEGV_MAPERR = SEGV_MAPERR & 0xFFFF,
 	$SEGV_ACCERR = SEGV_ACCERR & 0xFFFF,
+
+	$ITIMER_REAL = ITIMER_REAL,
+	$ITIMER_PROF = ITIMER_PROF,
+	$ITIMER_VIRTUAL = ITIMER_VIRTUAL,
 };
 
 typedef sigset_t $Sigset;
-typedef struct sigaction $Sigaction;
 typedef struct timespec $Timespec;
 typedef struct sigaltstack $Sigaltstack;
 typedef struct sigcontext $Sigcontext;
 typedef struct ucontext $Ucontext;
+typedef struct timeval $Timeval;
+typedef struct itimerval $Itimerval;
 
 struct xsiginfo {
 	int si_signo;
@@ -101,3 +106,17 @@ struct xsiginfo {
 };
 
 typedef struct xsiginfo $Siginfo;
+
+#undef sa_handler
+#undef sa_flags
+#undef sa_restorer
+#undef sa_mask
+
+struct xsigaction {
+	void (*sa_handler)(void);
+	unsigned long sa_flags;
+	void (*sa_restorer)(void);
+	unsigned int sa_mask;		/* mask last for extensibility */
+};
+
+typedef struct xsigaction $Sigaction;