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mirror of https://github.com/golang/go synced 2024-11-21 23:04:39 -07:00

runtime: various arm fixes

* correct symbol table size
  * do not reorder functions in output
  * traceback
  * signal handling
  * use same code for go + defer
  * handle leaf functions in symbol table

R=kaib, dpx
CC=golang-dev
https://golang.org/cl/884041
This commit is contained in:
Russ Cox 2010-04-05 12:51:09 -07:00
parent fb2758167f
commit 6c196015e0
35 changed files with 616 additions and 337 deletions

View File

@ -393,8 +393,8 @@ asmb(void)
int32 t, etext;
int a, dynsym;
uint32 va, fo, w, symo, startva;
uint32 symdatva = SYMDATVA;
int strtabsize;
vlong symdatva = SYMDATVA;
Optab *o;
ElfEhdr *eh;
ElfPhdr *ph, *pph;
@ -522,6 +522,10 @@ asmb(void)
if(dlm)
asmdyn();
cflush();
seek(cout, symo, 0);
lputl(symsize);
lputl(lcsize);
cflush();
}
else if(dlm){
seek(cout, HEADR+textsize+datsize, 0);

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@ -399,7 +399,7 @@ noops(void)
p->as = AMOVW;
p->scond = C_SCOND_LO;
p->from.type = D_CONST;
p->from.offset = (curtext->to.offset2 & ~7) + 4;
p->from.offset = ((curtext->to.offset2 + 3) & ~3) + 4;
p->to.type = D_REG;
p->to.reg = 2;
@ -449,7 +449,7 @@ noops(void)
p = appendp(p);
p->as = AMOVW;
p->from.type = D_CONST;
p->from.offset = (curtext->to.offset2 & ~7) + 4;
p->from.offset = ((curtext->to.offset2 + 3) & ~3) + 4;
p->to.type = D_REG;
p->to.reg = 2;

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@ -232,7 +232,7 @@ loop:
}
if(a == AB) {
q = p->cond;
if(q != P) {
if(q != P && q->as != ATEXT) {
p->mark |= FOLL;
p = q;
if(!(p->mark & FOLL))

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@ -0,0 +1,3 @@
enum {
thechar = '8'
};

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@ -311,6 +311,10 @@ TEXT ·setcallerpc+0(SB),7,$0
MOVL BX, -4(AX) // set calling pc
RET
TEXT getcallersp(SB), 7, $0
MOVL sp+0(FP), AX
RET
TEXT ldt0setup(SB),7,$16
// set up ldt 7 to point at tls0
// ldt 1 would be fine on Linux, but on OS X, 7 is as low as we can go.

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@ -18,7 +18,7 @@ CFLAGS_64=-D_64BIT
# can enable optimizations again.
CFLAGS_arm=-N
CFLAGS_mingw=-D__MINGW__
CFLAGS=-I$(GOOS) -I$(GOOS)/$(GOARCH) -wF $(CFLAGS_$(SIZE)) $(CFLAGS_$(GOARCH)) $(CFLAGS_$(GOOS))
CFLAGS=-I$(GOOS) -I$(GOARCH) -I$(GOOS)/$(GOARCH) -wF $(CFLAGS_$(SIZE)) $(CFLAGS_$(GOARCH)) $(CFLAGS_$(GOOS))
GOFILES=\
error.go\

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@ -0,0 +1,3 @@
enum {
thechar = '6'
};

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@ -311,3 +311,29 @@ TEXT stackcheck(SB), 7, $0
INT $3
RET
TEXT ·memclr(SB),7,$0
MOVQ 8(SP), DI // arg 1 addr
MOVL 16(SP), CX // arg 2 count
ADDL $7, CX
SHRL $3, CX
MOVQ $0, AX
CLD
REP
STOSQ
RET
TEXT ·getcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ -8(AX),AX // get calling pc
RET
TEXT ·setcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ x+8(FP), BX
MOVQ BX, -8(AX) // set calling pc
RET
TEXT getcallersp(SB),7,$0
MOVQ sp+0(FP), AX
RET

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@ -99,7 +99,7 @@ gentraceback(byte *pc0, byte *sp, G *g, int32 skip, uintptr *pcbuf, int32 m)
}
void
traceback(byte *pc0, byte *sp, G *g)
traceback(byte *pc0, byte *sp, byte*, G *g)
{
gentraceback(pc0, sp, g, 0, nil, 100);
}
@ -111,7 +111,7 @@ callers(int32 skip, uintptr *pcbuf, int32 m)
// our caller's pc, sp.
sp = (byte*)&skip;
pc = *(byte**)(sp-sizeof(uintptr));
pc = ·getcallerpc(&skip);
return gentraceback(pc, sp, g, skip, pcbuf, m);
}

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@ -0,0 +1,3 @@
enum {
thechar = '5'
};

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@ -85,8 +85,7 @@ TEXT _dep_dummy(SB),7,$0
TEXT breakpoint(SB),7,$0
BL abort(SB)
// BYTE $0xcc
// RET
RET
/*
* go-routine
@ -133,7 +132,7 @@ TEXT gogocall(SB), 7, $-4
// R1 frame size
// R2 arg size
// R3 prolog's LR
// NB. we do not save R0 because the we've forced 5c to pass all arguments
// NB. we do not save R0 because we've forced 5c to pass all arguments
// on the stack.
// using frame size $-4 means do not save LR on stack.
TEXT ·morestack(SB),7,$-4
@ -215,8 +214,7 @@ TEXT jmpdefer(SB), 7, $0
MOVW 0(SP), LR
MOVW $-4(LR), LR // BL deferreturn
MOVW 4(SP), R0 // fn
MOVW 8(SP), R1
MOVW $-4(R1), SP // correct for sp pointing to arg0, past stored lr
MOVW 8(SP), SP
B (R0)
TEXT ·memclr(SB),7,$20
@ -241,6 +239,11 @@ TEXT ·setcallerpc+0(SB),7,$-4
MOVW R0, 0(SP)
RET
TEXT getcallersp(SB),7,$-4
MOVW 0(FP), R0
MOVW $-4(R0), R0
RET
// runcgo(void(*fn)(void*), void *arg)
// Just call fn(arg), but first align the stack
// appropriately for the gcc ABI.
@ -260,7 +263,7 @@ TEXT runcgo(SB),7,$16
TEXT emptyfunc(SB),0,$0
RET
TEXT abort(SB),7,$0
TEXT abort(SB),7,$-4
MOVW $0, R0
MOVW (R0), R1

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@ -4,7 +4,7 @@
#include "runtime.h"
// returns number of bytes that the fp instruction is occupying
// returns number of words that the fp instruction is occupying
static uint32
isfltinstr(uint32 *pc)
{
@ -17,11 +17,11 @@ isfltinstr(uint32 *pc)
switch(c) {
case 6: // 110
//printf(" %p coproc multi: %x\n", pc, i);
return 4;
return 1;
case 7: // 111
if (i>>24 & 1) return 0; // ignore swi
//printf(" %p coproc %x\n", pc, i);
return 4;
return 1;
}
// lookahead for virtual instructions that span multiple arm instructions
@ -30,7 +30,7 @@ isfltinstr(uint32 *pc)
((*(pc + 2) & 0x0f000000) >> 24);
if(c == 0x50d) {
//printf(" %p coproc const %x\n", pc, i);
return 12;
return 3;
}
//printf(" %p %x\n", pc, i);

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@ -4,17 +4,95 @@
#include "runtime.h"
// TODO(rsc): Move this into portable code, with calls to a
// machine-dependent isclosure() function.
static int32
gentraceback(byte *pc0, byte *sp, byte *lr0, G *g, int32 skip, uintptr *pcbuf, int32 m)
{
byte *p;
int32 i, n, iter;
uintptr pc, lr, tracepc;
Stktop *stk;
Func *f;
pc = (uintptr)pc0;
lr = (uintptr)lr0;
// If the PC is zero, it's likely a nil function call.
// Start in the caller's frame.
if(pc == 0) {
pc = lr;
lr = 0;
}
n = 0;
stk = (Stktop*)g->stackbase;
for(iter = 0; iter < 100 && n < m; iter++) { // iter avoids looping forever
if(pc == (uintptr)·lessstack) {
// Hit top of stack segment. Unwind to next segment.
pc = (uintptr)stk->gobuf.pc;
sp = stk->gobuf.sp;
lr = *(uintptr*)sp;
stk = (Stktop*)stk->stackbase;
continue;
}
if(pc <= 0x1000 || (f = findfunc(pc-4)) == nil) {
// TODO: Check for closure.
break;
}
// Found an actual function worth reporting.
if(skip > 0)
skip--;
else if(pcbuf != nil)
pcbuf[n++] = pc;
else {
// Print during crash.
// main+0xf /home/rsc/go/src/runtime/x.go:23
// main(0x1, 0x2, 0x3)
printf("%S", f->name);
if(pc > f->entry)
printf("+%p", (uintptr)(pc - f->entry));
tracepc = pc; // back up to CALL instruction for funcline.
if(n > 0 && pc > f->entry)
tracepc -= sizeof(uintptr);
printf(" %S:%d\n", f->src, funcline(f, tracepc));
printf("\t%S(", f->name);
for(i = 0; i < f->args; i++) {
if(i != 0)
prints(", ");
·printhex(((uintptr*)sp)[1+i]);
if(i >= 4) {
prints(", ...");
break;
}
}
prints(")\n");
n++;
}
if(lr == 0)
lr = *(uintptr*)sp;
pc = lr;
lr = 0;
if(f->frame >= 0)
sp += f->frame;
}
return n;
}
void
traceback(byte *pc0, byte *sp, G *g)
traceback(byte *pc0, byte *sp, byte *lr, G *g)
{
gentraceback(pc0, sp, lr, g, 0, nil, 100);
}
// func caller(n int) (pc uintptr, file string, line int, ok bool)
int32
callers(int32 skip, uintptr *pcbuf, int32 m)
{
return 0;
byte *pc, *sp;
sp = getcallersp(&skip);
pc = ·getcallerpc(&skip);
return gentraceback(pc, sp, 0, g, skip, pcbuf, m);
}

View File

@ -65,7 +65,7 @@ sighandler(int32 sig, Siginfo *info, void *context)
printf("\n");
if(gotraceback()){
traceback((void*)r->eip, (void*)r->esp, m->curg);
traceback((void*)r->eip, (void*)r->esp, 0, m->curg);
tracebackothers(m->curg);
dumpregs(r);
}

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@ -73,7 +73,7 @@ sighandler(int32 sig, Siginfo *info, void *context)
printf("\n");
if(gotraceback()){
traceback((void*)r->rip, (void*)r->rsp, (void*)r->r15);
traceback((void*)r->rip, (void*)r->rsp, 0, (void*)r->r15);
tracebackothers((void*)r->r15);
dumpregs(r);
}

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@ -93,28 +93,6 @@ TEXT notok(SB),7,$0
MOVQ BP, (BP)
RET
TEXT ·memclr(SB),7,$0
MOVQ 8(SP), DI // arg 1 addr
MOVL 16(SP), CX // arg 2 count
ADDL $7, CX
SHRL $3, CX
MOVQ $0, AX
CLD
REP
STOSQ
RET
TEXT ·getcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ -8(AX),AX // get calling pc
RET
TEXT ·setcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ x+8(FP), BX
MOVQ BX, -8(AX) // set calling pc
RET
TEXT sigaltstack(SB),7,$0
MOVQ new+8(SP), DI
MOVQ old+16(SP), SI

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@ -73,7 +73,7 @@ sighandler(int32 sig, Siginfo* info, void* context)
printf("\n");
if(gotraceback()){
traceback((void*)mc->mc_eip, (void*)mc->mc_esp, m->curg);
traceback((void*)mc->mc_eip, (void*)mc->mc_esp, 0, m->curg);
tracebackothers(m->curg);
dumpregs(mc);
}

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@ -81,7 +81,7 @@ sighandler(int32 sig, Siginfo* info, void* context)
printf("\n");
if(gotraceback()){
traceback((void*)mc->mc_rip, (void*)mc->mc_rsp, (void*)mc->mc_r15);
traceback((void*)mc->mc_rip, (void*)mc->mc_rsp, 0, (void*)mc->mc_r15);
tracebackothers((void*)mc->mc_r15);
dumpregs(mc);
}

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@ -73,7 +73,6 @@ TEXT gettime(SB), 7, $32
MOVL BX, (DI)
RET
TEXT sigaction(SB),7,$-8
MOVL 8(SP), DI // arg 1 sig
MOVQ 16(SP), SI // arg 2 act
@ -110,28 +109,6 @@ TEXT notok(SB),7,$-8
MOVQ BP, (BP)
RET
TEXT ·memclr(SB),7,$-8
MOVQ 8(SP), DI // arg 1 addr
MOVL 16(SP), CX // arg 2 count
ADDL $7, CX
SHRL $3, CX
MOVQ $0, AX
CLD
REP
STOSQ
RET
TEXT ·getcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ -8(AX),AX // get calling pc
RET
TEXT ·setcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ x+8(FP), BX
MOVQ BX, -8(AX) // set calling pc
RET
TEXT sigaltstack(SB),7,$-8
MOVQ new+8(SP), DI
MOVQ old+16(SP), SI

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@ -70,7 +70,7 @@ sighandler(int32 sig, Siginfo* info, void* context)
printf("\n");
if(gotraceback()){
traceback((void*)sc->eip, (void*)sc->esp, m->curg);
traceback((void*)sc->eip, (void*)sc->esp, 0, m->curg);
tracebackothers(m->curg);
dumpregs(sc);
}

View File

@ -80,7 +80,7 @@ sighandler(int32 sig, Siginfo* info, void* context)
printf("\n");
if(gotraceback()){
traceback((void*)sc->rip, (void*)sc->rsp, (void*)sc->r15);
traceback((void*)sc->rip, (void*)sc->rsp, 0, (void*)sc->r15);
tracebackothers((void*)sc->r15);
dumpregs(sc);
}

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@ -98,28 +98,6 @@ TEXT notok(SB),7,$0
MOVQ BP, (BP)
RET
TEXT ·memclr(SB),7,$0-16
MOVQ 8(SP), DI // arg 1 addr
MOVL 16(SP), CX // arg 2 count (cannot be zero)
ADDL $7, CX
SHRL $3, CX
MOVQ $0, AX
CLD
REP
STOSQ
RET
TEXT ·getcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ -8(AX),AX // get calling pc
RET
TEXT ·setcallerpc+0(SB),7,$0
MOVQ x+0(FP),AX // addr of first arg
MOVQ x+8(FP), BX
MOVQ BX, -8(AX) // set calling pc
RET
// int64 futex(int32 *uaddr, int32 op, int32 val,
// struct timespec *timeout, int32 *uaddr2, int32 val2);
TEXT futex(SB),7,$0

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@ -1,4 +1,4 @@
// 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 defs_arm.c
// 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
// MACHINE GENERATED - DO NOT EDIT.
@ -19,9 +19,73 @@ enum {
// 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 struct Timespec Timespec;
struct Timespec {
int32 tv_sec;
int32 tv_nsec;
};
typedef struct Sigaltstack Sigaltstack;
struct Sigaltstack {
void *ss_sp;
int32 ss_flags;
uint32 ss_size;
};
typedef struct Sigcontext Sigcontext;
struct Sigcontext {
uint32 trap_no;
uint32 error_code;
uint32 oldmask;
uint32 arm_r0;
uint32 arm_r1;
uint32 arm_r2;
uint32 arm_r3;
uint32 arm_r4;
uint32 arm_r5;
uint32 arm_r6;
uint32 arm_r7;
uint32 arm_r8;
uint32 arm_r9;
uint32 arm_r10;
uint32 arm_fp;
uint32 arm_ip;
uint32 arm_sp;
uint32 arm_lr;
uint32 arm_pc;
uint32 arm_cpsr;
uint32 fault_address;
};
typedef struct Ucontext Ucontext;
struct Ucontext {
uint32 uc_flags;
Ucontext *uc_link;
Sigaltstack uc_stack;
Sigcontext uc_mcontext;
Sigset uc_sigmask;
int32 __unused[30];
uint32 uc_regspace[128];
};
typedef struct Siginfo Siginfo;
struct Siginfo {
int32 si_signo;
int32 si_errno;
int32 si_code;
uint8 _sifields[4];
};
#pragma pack off

View File

@ -7,25 +7,31 @@
#include "signals.h"
#include "os.h"
void dumpregs(void) {}
// void
// dumpregs(Sigcontext *r)
// {
// printf("eax %X\n", r->eax);
// printf("ebx %X\n", r->ebx);
// printf("ecx %X\n", r->ecx);
// printf("edx %X\n", r->edx);
// printf("edi %X\n", r->edi);
// printf("esi %X\n", r->esi);
// printf("ebp %X\n", r->ebp);
// printf("esp %X\n", r->esp);
// printf("eip %X\n", r->eip);
// printf("eflags %X\n", r->eflags);
// printf("cs %X\n", r->cs);
// printf("fs %X\n", r->fs);
// printf("gs %X\n", r->gs);
// }
void
dumpregs(Sigcontext *r)
{
printf("trap %x\n", r->trap_no);
printf("error %x\n", r->error_code);
printf("oldmask %x\n", r->oldmask);
printf("r0 %x\n", r->arm_r0);
printf("r1 %x\n", r->arm_r1);
printf("r2 %x\n", r->arm_r2);
printf("r3 %x\n", r->arm_r3);
printf("r4 %x\n", r->arm_r4);
printf("r5 %x\n", r->arm_r5);
printf("r6 %x\n", r->arm_r6);
printf("r7 %x\n", r->arm_r7);
printf("r8 %x\n", r->arm_r8);
printf("r9 %x\n", r->arm_r9);
printf("r10 %x\n", r->arm_r10);
printf("fp %x\n", r->arm_fp);
printf("ip %x\n", r->arm_ip);
printf("sp %x\n", r->arm_sp);
printf("lr %x\n", r->arm_lr);
printf("pc %x\n", r->arm_pc);
printf("cpsr %x\n", r->arm_cpsr);
printf("fault %x\n", r->fault_address);
}
/*
* This assembler routine takes the args from registers, puts them on the stack,
@ -43,70 +49,79 @@ signame(int32 sig)
return gostring((byte*)sigtab[sig].name);
}
void sighandler(void) {}
// void
// sighandler(int32 sig, Siginfo* info, void* context)
// {
// Ucontext *uc;
// Sigcontext *sc;
void
sighandler(int32 sig, Siginfo *info, void *context)
{
Ucontext *uc;
Sigcontext *sc;
// if(panicking) // traceback already printed
// exit(2);
// panicking = 1;
if(sigtab[sig].flags & SigQueue) {
if(sigsend(sig) || (sigtab[sig].flags & SigIgnore))
return;
exit(2); // SIGINT, SIGTERM, etc
}
// uc = context;
// sc = &uc->uc_mcontext;
if(panicking) // traceback already printed
exit(2);
panicking = 1;
// if(sig < 0 || sig >= NSIG)
// printf("Signal %d\n", sig);
// else
// printf("%s\n", sigtab[sig].name);
if(sig < 0 || sig >= NSIG)
printf("Signal %d\n", sig);
else
printf("%s\n", sigtab[sig].name);
// printf("Faulting address: %p\n", *(void**)info->_sifields);
// printf("pc=%X\n", sc->eip);
// printf("\n");
uc = context;
sc = &uc->uc_mcontext;
// if(gotraceback()){
// traceback((void*)sc->eip, (void*)sc->esp, m->curg);
// tracebackothers(m->curg);
// dumpregs(sc);
// }
printf("Faulting address: %p\n", sc->fault_address);
printf("PC=%x\n", sc->arm_pc);
printf("\n");
if(gotraceback()){
traceback((void*)sc->arm_pc, (void*)sc->arm_sp, (void*)sc->arm_lr, m->curg);
tracebackothers(m->curg);
printf("\n");
dumpregs(sc);
}
// breakpoint();
// exit(2);
// }
exit(2);
}
void
signalstack(byte *p, int32 n)
{
// Sigaltstack st;
Sigaltstack st;
// st.ss_sp = p;
// st.ss_size = n;
// st.ss_flags = 0;
// sigaltstack(&st, nil);
st.ss_sp = p;
st.ss_size = n;
st.ss_flags = 0;
sigaltstack(&st, nil);
}
void
initsig(void)
{
// static Sigaction sa;
static Sigaction sa;
// int32 i;
// sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER;
// sa.sa_mask = 0xFFFFFFFFFFFFFFFFULL;
// sa.sa_restorer = (void*)sigreturn;
// for(i = 0; i<NSIG; i++) {
// if(sigtab[i].flags) {
// if(sigtab[i].flags & SigCatch)
// *(void**)sa._u = (void*)sigtramp; // handler
// else
// *(void**)sa._u = (void*)sigignore; // handler
// if(sigtab[i].flags & SigRestart)
// sa.sa_flags |= SA_RESTART;
// else
// sa.sa_flags &= ~SA_RESTART;
// rt_sigaction(i, &sa, nil, 8);
// }
// }
siginit();
int32 i;
sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER;
sa.sa_mask.sig[0] = 0xFFFFFFFF;
sa.sa_mask.sig[1] = 0xFFFFFFFF;
sa.sa_restorer = (void*)sigreturn;
for(i = 0; i<NSIG; i++) {
if(sigtab[i].flags) {
if(sigtab[i].flags & (SigCatch | SigQueue))
sa.sa_handler = (void*)sigtramp;
else
sa.sa_handler = (void*)sigignore;
if(sigtab[i].flags & SigRestart)
sa.sa_flags |= SA_RESTART;
else
sa.sa_flags &= ~SA_RESTART;
rt_sigaction(i, &sa, nil, 8);
}
}
}

View File

@ -18,6 +18,9 @@
#define SYS_write (SYS_BASE + 4)
#define SYS_gettimeofday (SYS_BASE + 78)
#define SYS_clone (SYS_BASE + 120)
#define SYS_rt_sigreturn (SYS_BASE + 173)
#define SYS_rt_sigaction (SYS_BASE + 174)
#define SYS_sigaltstack (SYS_BASE + 186)
#define SYS_mmap2 (SYS_BASE + 192)
#define SYS_gettid (SYS_BASE + 224)
#define SYS_futex (SYS_BASE + 240)
@ -175,3 +178,39 @@ TEXT cacheflush(SB),7,$0
SWI $0
RET
TEXT sigaltstack(SB),7,$0
MOVW 0(FP), R0
MOVW 4(FP), R1
MOVW $SYS_sigaltstack, R7
SWI $0
RET
TEXT sigignore(SB),7,$0
RET
TEXT sigreturn(SB),7,$0
MOVW R0, R0
B abort(SB)
RET
TEXT sigtramp(SB),7,$24
MOVW m_gsignal(m), g
MOVW R0, 4(R13)
MOVW R1, 8(R13)
MOVW R2, 12(R13)
BL sighandler(SB)
RET
TEXT rt_sigaction(SB),7,$0
MOVW 0(FP), R0
MOVW 4(FP), R1
MOVW 8(FP), R2
MOVW 12(FP), R3
MOVW $SYS_rt_sigaction, R7
SWI $0
RET
TEXT sigreturn(SB),7,$0
MOVW $SYS_rt_sigreturn, R7
SWI $0
RET

View File

@ -4,8 +4,7 @@
/*
* 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 defs_arm.c >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 >arm/defs.h
* Another input file for ARM defs.h
*/
@ -14,6 +13,7 @@
#include <asm/mman.h>
#include <asm/sigcontext.h>
#include <asm/ucontext.h>
#include <asm/siginfo.h>
/*
#include <sys/signal.h>
@ -38,17 +38,18 @@ enum {
$SA_SIGINFO = SA_SIGINFO
};
//typedef struct _fpreg $Fpreg;
//typedef struct _fpxreg $Fpxreg;
//typedef struct _xmmreg $Xmmreg;
//typedef struct _fpstate $Fpstate;
typedef sigset_t $Sigset;
typedef struct sigaction $Sigaction;
typedef struct timespec $Timespec;
//typedef struct timeval $Timeval;
// typedef struct sigaction $Sigaction;
// typedef siginfo_t $Siginfo;
// typedef struct sigaltstack $Sigaltstack;
// typedef struct sigcontext $Sigcontext;
// typedef struct ucontext $Ucontext;
typedef struct sigaltstack $Sigaltstack;
typedef struct sigcontext $Sigcontext;
typedef struct ucontext $Ucontext;
struct xsiginfo {
int si_signo;
int si_errno;
int si_code;
char _sifields[4];
};
typedef struct xsiginfo $Siginfo;

View File

@ -8,3 +8,5 @@ int32 clone(int32, void*, M*, G*, void(*)(void));
struct Sigaction;
void rt_sigaction(uintptr, struct Sigaction*, void*, uintptr);
void sigaltstack(Sigaltstack*, Sigaltstack*);

View File

@ -157,7 +157,7 @@ tracebackothers(G *me)
if(g == me || g->status == Gdead)
continue;
printf("\ngoroutine %d [%d]:\n", g->goid, g->status);
traceback(g->sched.pc, g->sched.sp, g);
traceback(g->sched.pc, g->sched.sp, 0, g);
}
}
@ -468,7 +468,7 @@ scheduler(void)
// each call to deferproc.
// (the pc we're returning to does pop pop
// before it tests the return value.)
gp->sched.sp = d->sp - 2*sizeof(uintptr);
gp->sched.sp = getcallersp(d->sp - 2*sizeof(uintptr));
gp->sched.pc = d->pc;
free(d);
gogo(&gp->sched, 1);
@ -715,6 +715,7 @@ newstack(void)
args = m->moreargs;
g1 = m->curg;
if(frame == 1 && args > 0 && m->morebuf.sp - sizeof(Stktop) - args - 32 > g1->stackguard) {
// special case: called from reflect.call (frame == 1)
// to call code with an arbitrary argument size,
@ -883,7 +884,7 @@ void
d = g->defer;
if(d == nil)
return;
sp = (byte*)&arg0;
sp = getcallersp(&arg0);
if(d->sp != sp)
return;
mcpy(d->sp, d->args, d->siz);

View File

@ -32,9 +32,8 @@ panic(int32 unused)
panicking++;
printf("\npanic PC=%X\n", (uint64)(uintptr)&unused);
sp = (uint8*)&unused;
if(gotraceback()){
traceback(·getcallerpc(&unused), sp, g);
traceback(·getcallerpc(&unused), getcallersp(&unused), 0, g);
tracebackothers(g);
}
breakpoint(); // so we can grab it in a debugger

View File

@ -384,7 +384,7 @@ String gostring(byte*);
String gostringw(uint16*);
void initsig(void);
int32 gotraceback(void);
void traceback(uint8 *pc, uint8 *sp, G* gp);
void traceback(uint8 *pc, uint8 *sp, uint8 *lr, G* gp);
void tracebackothers(G*);
int32 open(byte*, int32, ...);
int32 write(int32, void*, int32);

View File

@ -15,6 +15,7 @@
#include "runtime.h"
#include "defs.h"
#include "os.h"
#include "arch.h"
// TODO(rsc): Move this *under* the text segment.
// Then define names for these addresses instead of hard-coding magic ones.
@ -102,6 +103,8 @@ dofunc(Sym *sym)
switch(sym->symtype) {
case 't':
case 'T':
case 'l':
case 'L':
if(strcmp(sym->name, (byte*)"etext") == 0)
break;
if(func == nil) {
@ -111,10 +114,12 @@ dofunc(Sym *sym)
f = &func[nfunc++];
f->name = gostring(sym->name);
f->entry = sym->value;
if(sym->symtype == 'L' || sym->symtype == 'l')
f->frame = -sizeof(uintptr);
break;
case 'm':
if(nfunc > 0 && func != nil)
func[nfunc-1].frame = sym->value;
func[nfunc-1].frame += sym->value;
break;
case 'p':
if(nfunc > 0 && func != nil) {
@ -233,8 +238,6 @@ dosrcline(Sym *sym)
}
}
enum { PcQuant = 1 };
// Interpret pc/ln table, saving the subpiece for each func.
static void
splitpcln(void)
@ -244,6 +247,16 @@ splitpcln(void)
byte *p, *ep;
Func *f, *ef;
int32 *v;
int32 pcquant;
switch(thechar) {
case '5':
pcquant = 4;
break;
default: // 6, 8
pcquant = 1;
break;
}
// TODO(rsc): Remove once TODO at top of file is done.
if(goos != nil && strcmp((uint8*)goos, (uint8*)"nacl") == 0)
@ -266,7 +279,7 @@ splitpcln(void)
ef = func + nfunc;
pc = func[0].entry; // text base
f->pcln.array = p;
f->pc0 = pc - PcQuant;
f->pc0 = pc - pcquant;
line = 0;
for(; p < ep; p++) {
if(f < ef && pc > (f+1)->entry) {
@ -286,9 +299,9 @@ splitpcln(void)
} else if(*p <= 128) {
line -= *p - 64;
} else {
pc += PcQuant*(*p - 129);
pc += pcquant*(*p - 129);
}
pc += PcQuant;
pc += pcquant;
}
if(f < ef) {
f->pcln.len = p - f->pcln.array;
@ -306,6 +319,16 @@ funcline(Func *f, uint64 targetpc)
byte *p, *ep;
uintptr pc;
int32 line;
int32 pcquant;
switch(thechar) {
case '5':
pcquant = 4;
break;
default: // 6, 8
pcquant = 1;
break;
}
p = f->pcln.array;
ep = p + f->pcln.len;
@ -320,9 +343,9 @@ funcline(Func *f, uint64 targetpc)
} else if(*p <= 128) {
line -= *p - 64;
} else {
pc += PcQuant*(*p - 129);
pc += pcquant*(*p - 129);
}
pc += PcQuant;
pc += pcquant;
}
return line;
}

View File

@ -1,32 +1,161 @@
235.go
assign.go
blank1.go
./235.go
./64bit.go
./assign.go
./bigalg.go
./blank.go
./blank1.go
./chancap.go
./char_lit.go
./closedchan.go
./closure.go
./cmp1.go
./complit.go
./compos.go
./const.go
./const1.go
./const2.go
./const3.go
./convert.go
./convert3.go
./convlit.go
./convlit1.go
./copy.go
./ddd.go
./ddd1.go
./ddd2.go
./ddd3.go
./decl.go
./declbad.go
./defer.go
./empty.go
./escape.go
./for.go
./func1.go
./func2.go
./func3.go
./func4.go
./func5.go
./gc.go
./gc1.go
./hashmap.go
./hilbert.go
./if.go
./if1.go
./import.go
./import1.go
./import2.go
./import3.go
./import4.go
./indirect.go
./indirect1.go
./initcomma.go
./initializerr.go
./initsyscall.go
./int_lit.go
./intcvt.go
./iota.go
./literal.go
./malloc1.go
./mallocrand.go
./mallocrep.go
./mallocrep1.go
./map.go
./method.go
./method1.go
./method2.go
./method3.go
./named.go
./named1.go
./nil.go
./parentype.go
./range.go
./recover1.go
./rename.go
./rename1.go
./runtime.go
./sieve.go
./simassign.go
./stack.go
./string_lit.go
./stringrange.go
./switch.go
./switch1.go
./test0.go
./typeswitch.go
./typeswitch2.go
./utf.go
./varinit.go
./vectors.go
ken/array.go
ken/chan.go
ken/chan1.go
ken/complit.go
ken/divconst.go
ken/divmod.go
ken/embed.go
ken/for.go
ken/interbasic.go
ken/interfun.go
ken/litfun.go
ken/mfunc.go
ken/modconst.go
ken/ptrfun.go
ken/ptrvar.go
ken/range.go
ken/robfor.go
ken/robif.go
ken/shift.go
ken/simpbool.go
ken/simpfun.go
ken/simpvar.go
ken/slicearray.go
ken/sliceslice.go
ken/strvar.go
chan/fifo.go
chan/nonblock.go
chan/goroutines.go
chan/perm.go
chan/powser1.go
chan/powser2.go
chan/select.go
chan/select2.go
chan/sieve1.go
chan/sieve2.go
chancap.go
char_lit.go
closedchan.go
closure.go
cmp1.go
cmp2.go
cmp3.go
cmp4.go
cmp5.go
compos.go
const1.go
const2.go
convert3.go
convlit.go
convlit1.go
declbad.go
empty.go
escape.go
interface/bigdata.go
interface/convert.go
interface/convert1.go
interface/convert2.go
interface/embed.go
interface/embed0.go
interface/embed1.go
interface/explicit.go
interface/pointer.go
interface/receiver.go
interface/receiver1.go
interface/recursive.go
interface/struct.go
nilptr/arrayindex.go
nilptr/arrayindex1.go
nilptr/arraytoslice.go
nilptr/arraytoslice1.go
nilptr/arraytoslice2.go
nilptr/slicearray.go
nilptr/structfield.go
nilptr/structfield1.go
nilptr/structfield2.go
nilptr/structfieldaddr.go
syntax/forvar.go
syntax/import.go
syntax/interface.go
syntax/semi1.go
syntax/semi2.go
syntax/semi3.go
syntax/semi4.go
syntax/semi5.go
syntax/semi6.go
syntax/semi7.go
syntax/slice.go
syntax/vareq.go
syntax/vareq1.go
fixedbugs/bug000.go
fixedbugs/bug001.go
fixedbugs/bug002.go
@ -37,11 +166,12 @@ fixedbugs/bug006.go
fixedbugs/bug007.go
fixedbugs/bug008.go
fixedbugs/bug009.go
fixedbugs/bug010.go
fixedbugs/bug011.go
fixedbugs/bug012.go
fixedbugs/bug013.go
fixedbugs/bug014.go
fixedbugs/bug015.go
fixedbugs/bug016.go
fixedbugs/bug017.go
fixedbugs/bug020.go
fixedbugs/bug021.go
@ -49,7 +179,6 @@ fixedbugs/bug022.go
fixedbugs/bug023.go
fixedbugs/bug024.go
fixedbugs/bug026.go
fixedbugs/bug027.go
fixedbugs/bug028.go
fixedbugs/bug030.go
fixedbugs/bug031.go
@ -61,6 +190,7 @@ fixedbugs/bug039.go
fixedbugs/bug040.go
fixedbugs/bug045.go
fixedbugs/bug046.go
fixedbugs/bug047.go
fixedbugs/bug048.go
fixedbugs/bug049.go
fixedbugs/bug050.go
@ -69,6 +199,7 @@ fixedbugs/bug052.go
fixedbugs/bug053.go
fixedbugs/bug054.go
fixedbugs/bug055.go
fixedbugs/bug056.go
fixedbugs/bug057.go
fixedbugs/bug058.go
fixedbugs/bug059.go
@ -79,10 +210,8 @@ fixedbugs/bug063.go
fixedbugs/bug064.go
fixedbugs/bug065.go
fixedbugs/bug066.go
fixedbugs/bug067.go
fixedbugs/bug068.go
fixedbugs/bug069.go
fixedbugs/bug070.go
fixedbugs/bug071.go
fixedbugs/bug072.go
fixedbugs/bug073.go
@ -92,7 +221,6 @@ fixedbugs/bug076.go
fixedbugs/bug077.go
fixedbugs/bug078.go
fixedbugs/bug080.go
fixedbugs/bug081.go
fixedbugs/bug082.go
fixedbugs/bug083.go
fixedbugs/bug084.go
@ -104,7 +232,6 @@ fixedbugs/bug089.go
fixedbugs/bug090.go
fixedbugs/bug091.go
fixedbugs/bug092.go
fixedbugs/bug093.go
fixedbugs/bug094.go
fixedbugs/bug096.go
fixedbugs/bug097.go
@ -121,7 +248,6 @@ fixedbugs/bug109.go
fixedbugs/bug110.go
fixedbugs/bug111.go
fixedbugs/bug112.go
fixedbugs/bug113.go
fixedbugs/bug114.go
fixedbugs/bug115.go
fixedbugs/bug116.go
@ -151,13 +277,11 @@ fixedbugs/bug144.go
fixedbugs/bug145.go
fixedbugs/bug146.go
fixedbugs/bug147.go
fixedbugs/bug148.go
fixedbugs/bug149.go
fixedbugs/bug150.go
fixedbugs/bug151.go
fixedbugs/bug152.go
fixedbugs/bug153.go
fixedbugs/bug154.go
fixedbugs/bug155.go
fixedbugs/bug156.go
fixedbugs/bug157.go
@ -178,12 +302,14 @@ fixedbugs/bug173.go
fixedbugs/bug174.go
fixedbugs/bug175.go
fixedbugs/bug176.go
fixedbugs/bug177.go
fixedbugs/bug178.go
fixedbugs/bug179.go
fixedbugs/bug180.go
fixedbugs/bug181.go
fixedbugs/bug182.go
fixedbugs/bug183.go
fixedbugs/bug184.go
fixedbugs/bug185.go
fixedbugs/bug186.go
fixedbugs/bug187.go
@ -206,93 +332,56 @@ fixedbugs/bug203.go
fixedbugs/bug204.go
fixedbugs/bug205.go
fixedbugs/bug206.go
fixedbugs/bug207.go
fixedbugs/bug208.go
fixedbugs/bug209.go
fixedbugs/bug211.go
fixedbugs/bug212.go
fixedbugs/bug213.go
for.go
func1.go
func2.go
func3.go
func4.go
func5.go
gc.go
hashmap.go
helloworld.go
if.go
if1.go
import.go
import1.go
indirect.go
indirect1.go
initcomma.go
initializerr.go
initsyscall.go
int_lit.go
intcvt.go
interface/bigdata.go
interface/convert.go
interface/convert1.go
interface/convert2.go
interface/embed.go
interface/embed0.go
interface/embed1.go
interface/explicit.go
interface/fail.go
interface/pointer.go
interface/receiver.go
interface/receiver1.go
interface/recursive.go
interface/returntype.go
interface/struct.go
iota.go
ken/array.go
ken/chan1.go
ken/complit.go
ken/divmod.go
ken/embed.go
ken/for.go
ken/interbasic.go
ken/interfun.go
ken/intervar.go
ken/label.go
ken/litfun.go
ken/mfunc.go
ken/ptrfun.go
ken/ptrvar.go
ken/range.go
ken/rob1.go
ken/rob2.go
ken/robfor.go
ken/robif.go
ken/shift.go
ken/simpbool.go
ken/simpfun.go
ken/simpprint.go
ken/simpswitch.go
ken/simpvar.go
ken/string.go
ken/strvar.go
method.go
method1.go
method2.go
method3.go
named1.go
nil.go
parentype.go
printbig.go
range.go
rename1.go
runtime.go
sieve.go
sigchld.go
simassign.go
string_lit.go
switch.go
switch1.go
test0.go
turing.go
utf.go
varinit.go
vectors.go
fixedbugs/bug214.go
fixedbugs/bug215.go
fixedbugs/bug216.go
fixedbugs/bug217.go
fixedbugs/bug218.go
fixedbugs/bug219.go
fixedbugs/bug220.go
fixedbugs/bug222.go
fixedbugs/bug223.go
fixedbugs/bug224.go
fixedbugs/bug225.go
fixedbugs/bug226.go
fixedbugs/bug227.go
fixedbugs/bug228.go
fixedbugs/bug229.go
fixedbugs/bug230.go
fixedbugs/bug231.go
fixedbugs/bug232.go
fixedbugs/bug233.go
fixedbugs/bug234.go
fixedbugs/bug235.go
fixedbugs/bug236.go
fixedbugs/bug237.go
fixedbugs/bug238.go
fixedbugs/bug239.go
fixedbugs/bug240.go
fixedbugs/bug241.go
fixedbugs/bug242.go
fixedbugs/bug244.go
fixedbugs/bug245.go
fixedbugs/bug246.go
fixedbugs/bug247.go
fixedbugs/bug248.go
fixedbugs/bug249.go
fixedbugs/bug250.go
fixedbugs/bug251.go
fixedbugs/bug252.go
fixedbugs/bug253.go
fixedbugs/bug254.go
fixedbugs/bug255.go
fixedbugs/bug256.go
fixedbugs/bug257.go
fixedbugs/bug259.go
fixedbugs/bug261.go
fixedbugs/bug262.go
fixedbugs/bug263.go
fixedbugs/bug265.go

View File

@ -3,32 +3,24 @@
PASS
=========== cmp2.go
comparing uncomparable type []int
throw: interface compare
panic: runtime error: comparing uncomparable type []int
panic PC=xxx
[1] Segmentation fault "${@}"
=========== cmp3.go
comparing uncomparable type []int
throw: interface compare
panic: runtime error: comparing uncomparable type []int
panic PC=xxx
[1] Segmentation fault "${@}"
=========== cmp4.go
hash of unhashable type []int
throw: interface hash
panic: runtime error: hash of unhashable type []int
panic PC=xxx
[1] Segmentation fault "${@}"
=========== cmp5.go
hash of unhashable type []int
throw: interface hash
panic: runtime error: hash of unhashable type []int
panic PC=xxx
[1] Segmentation fault "${@}"
=========== fixedbugs/bug016.go
fixedbugs/bug016.go:11: constant -3 overflows uint
@ -62,22 +54,21 @@ fixedbugs/bug081.go:9: typechecking loop
M
=========== fixedbugs/bug113.go
interface is int, not int32
throw: interface conversion
panic: interface conversion: interface is int, not int32
panic PC=xxx
[1] Segmentation fault "${@}"
=========== fixedbugs/bug148.go
2 3
interface is main.T, not main.T
throw: interface conversion
panic: interface conversion: interface is main.T, not main.T
panic PC=xxx
[1] Segmentation fault "${@}"
=========== fixedbugs/bug154.go
[1] Segmentation fault "${@}"
SIGSEGV: segmentation violation
Faulting address: 0x0
PC=0x255b4
BUG: should not panic
=========== fixedbugs/bug206.go
@ -87,18 +78,14 @@ BUG: bug206
hello, world
=========== interface/fail.go
*main.S is not main.I: missing method Foo
throw: interface conversion
panic: interface conversion: *main.S is not main.I: missing method Foo
panic PC=xxx
[1] Segmentation fault "${@}"
=========== interface/returntype.go
*main.S is not main.I2: missing method Name
throw: interface conversion
panic: interface conversion: *main.S is not main.I2: missing method Name
panic PC=xxx
[1] Segmentation fault "${@}"
=========== ken/intervar.go
print 1 bio 2 file 3 -- abc

View File

@ -87,6 +87,7 @@ done | # clean up some stack noise
/^Trace\/BPT trap/d
/RUNFILE/ s/line 1: *[0-9]*/line 1: PID/
/^\$RUNFILE: line 1: PID Trace\/breakpoint trap/d
/Segmentation fault/d
/^qemu: uncaught target signal 11 (Segmentation fault) - exiting/d' > run.out
rm -f $RUNFILE $TMP1FILE $TMP2FILE *.$A $A.out

View File

@ -67,6 +67,7 @@ done | # clean up some stack noise
/^Trace\/breakpoint trap/d
/^Trace\/BPT trap/d
s!'$GOROOT'!$GOROOT!g
/Segmentation fault/d
/RUNFILE/ s/line 1: *[0-9]*/line 1: PID/
/^\$RUNFILE: line 1: PID Trace\/breakpoint trap/d
/^qemu: uncaught target signal 11 (Segmentation fault) - exiting/d' > run.out