diff options
author | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
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committer | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
commit | 80f18fc933cf3f3e829c5455a1023d69f7b86e52 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /src/pkg/runtime/linux | |
parent | 28592ee1ea1f5cdffcf85472f9de0285d928cf12 (diff) | |
download | golang-80f18fc933cf3f3e829c5455a1023d69f7b86e52.tar.gz |
Imported Upstream version 60
Diffstat (limited to 'src/pkg/runtime/linux')
-rw-r--r-- | src/pkg/runtime/linux/386/defs.h | 189 | ||||
-rw-r--r-- | src/pkg/runtime/linux/386/rt0.s | 9 | ||||
-rw-r--r-- | src/pkg/runtime/linux/386/signal.c | 184 | ||||
-rw-r--r-- | src/pkg/runtime/linux/386/sys.s | 317 | ||||
-rw-r--r-- | src/pkg/runtime/linux/amd64/defs.h | 234 | ||||
-rw-r--r-- | src/pkg/runtime/linux/amd64/rt0.s | 10 | ||||
-rw-r--r-- | src/pkg/runtime/linux/amd64/signal.c | 194 | ||||
-rw-r--r-- | src/pkg/runtime/linux/amd64/sys.s | 234 | ||||
-rw-r--r-- | src/pkg/runtime/linux/arm/defs.h | 147 | ||||
-rw-r--r-- | src/pkg/runtime/linux/arm/rt0.s | 6 | ||||
-rw-r--r-- | src/pkg/runtime/linux/arm/signal.c | 189 | ||||
-rw-r--r-- | src/pkg/runtime/linux/arm/sys.s | 289 | ||||
-rw-r--r-- | src/pkg/runtime/linux/defs.c | 95 | ||||
-rw-r--r-- | src/pkg/runtime/linux/defs1.c | 24 | ||||
-rw-r--r-- | src/pkg/runtime/linux/defs2.c | 120 | ||||
-rw-r--r-- | src/pkg/runtime/linux/defs_arm.c | 122 | ||||
-rw-r--r-- | src/pkg/runtime/linux/mem.c | 113 | ||||
-rw-r--r-- | src/pkg/runtime/linux/os.h | 19 | ||||
-rw-r--r-- | src/pkg/runtime/linux/signals.h | 51 | ||||
-rw-r--r-- | src/pkg/runtime/linux/thread.c | 305 |
20 files changed, 0 insertions, 2851 deletions
diff --git a/src/pkg/runtime/linux/386/defs.h b/src/pkg/runtime/linux/386/defs.h deleted file mode 100644 index 6ae1c4e13..000000000 --- a/src/pkg/runtime/linux/386/defs.h +++ /dev/null @@ -1,189 +0,0 @@ -// godefs -f -m32 -f -I/home/rsc/pub/linux-2.6/arch/x86/include -f -I/home/rsc/pub/linux-2.6/include -f -D_LOOSE_KERNEL_NAMES -f -D__ARCH_SI_UID_T=__kernel_uid32_t defs2.c - -// MACHINE GENERATED - DO NOT EDIT. - -// Constants -enum { - PROT_NONE = 0, - PROT_READ = 0x1, - PROT_WRITE = 0x2, - PROT_EXEC = 0x4, - MAP_ANON = 0x20, - MAP_PRIVATE = 0x2, - MAP_FIXED = 0x10, - SA_RESTART = 0x10000000, - SA_ONSTACK = 0x8000000, - SA_RESTORER = 0x4000000, - SA_SIGINFO = 0x4, - SIGHUP = 0x1, - SIGINT = 0x2, - SIGQUIT = 0x3, - SIGILL = 0x4, - SIGTRAP = 0x5, - SIGABRT = 0x6, - SIGBUS = 0x7, - SIGFPE = 0x8, - SIGKILL = 0x9, - SIGUSR1 = 0xa, - SIGSEGV = 0xb, - SIGUSR2 = 0xc, - SIGPIPE = 0xd, - SIGALRM = 0xe, - SIGSTKFLT = 0x10, - SIGCHLD = 0x11, - SIGCONT = 0x12, - SIGSTOP = 0x13, - SIGTSTP = 0x14, - SIGTTIN = 0x15, - SIGTTOU = 0x16, - SIGURG = 0x17, - SIGXCPU = 0x18, - SIGXFSZ = 0x19, - SIGVTALRM = 0x1a, - SIGPROF = 0x1b, - SIGWINCH = 0x1c, - SIGIO = 0x1d, - SIGPWR = 0x1e, - SIGSYS = 0x1f, - FPE_INTDIV = 0x1, - FPE_INTOVF = 0x2, - FPE_FLTDIV = 0x3, - FPE_FLTOVF = 0x4, - FPE_FLTUND = 0x5, - FPE_FLTRES = 0x6, - FPE_FLTINV = 0x7, - FPE_FLTSUB = 0x8, - BUS_ADRALN = 0x1, - BUS_ADRERR = 0x2, - BUS_OBJERR = 0x3, - SEGV_MAPERR = 0x1, - SEGV_ACCERR = 0x2, - ITIMER_REAL = 0, - ITIMER_VIRTUAL = 0x1, - ITIMER_PROF = 0x2, -}; - -// Types -#pragma pack on - -typedef struct Fpreg Fpreg; -struct Fpreg { - uint16 significand[4]; - uint16 exponent; -}; - -typedef struct Fpxreg Fpxreg; -struct Fpxreg { - uint16 significand[4]; - uint16 exponent; - uint16 padding[3]; -}; - -typedef struct Xmmreg Xmmreg; -struct Xmmreg { - uint32 element[4]; -}; - -typedef struct Fpstate Fpstate; -struct Fpstate { - uint32 cw; - uint32 sw; - uint32 tag; - uint32 ipoff; - uint32 cssel; - uint32 dataoff; - uint32 datasel; - Fpreg _st[8]; - uint16 status; - uint16 magic; - uint32 _fxsr_env[6]; - uint32 mxcsr; - uint32 reserved; - Fpxreg _fxsr_st[8]; - Xmmreg _xmm[8]; - uint32 padding1[44]; - byte Pad_godefs_0[48]; -}; - -typedef struct Timespec Timespec; -struct Timespec { - int32 tv_sec; - int32 tv_nsec; -}; - -typedef struct Timeval Timeval; -struct Timeval { - int32 tv_sec; - int32 tv_usec; -}; - -typedef struct Sigaction Sigaction; -struct Sigaction { - void *k_sa_handler; - uint32 sa_flags; - void *sa_restorer; - uint32 sa_mask; -}; - -typedef struct Siginfo Siginfo; -struct Siginfo { - int32 si_signo; - int32 si_errno; - int32 si_code; - byte _sifields[116]; -}; - -typedef struct Sigaltstack Sigaltstack; -struct Sigaltstack { - void *ss_sp; - int32 ss_flags; - uint32 ss_size; -}; - -typedef struct Sigcontext Sigcontext; -struct Sigcontext { - uint16 gs; - uint16 __gsh; - uint16 fs; - uint16 __fsh; - uint16 es; - uint16 __esh; - uint16 ds; - uint16 __dsh; - uint32 edi; - uint32 esi; - uint32 ebp; - uint32 esp; - uint32 ebx; - uint32 edx; - uint32 ecx; - uint32 eax; - uint32 trapno; - uint32 err; - uint32 eip; - uint16 cs; - uint16 __csh; - uint32 eflags; - uint32 esp_at_signal; - uint16 ss; - uint16 __ssh; - Fpstate *fpstate; - uint32 oldmask; - uint32 cr2; -}; - -typedef struct Ucontext Ucontext; -struct Ucontext { - uint32 uc_flags; - Ucontext *uc_link; - Sigaltstack uc_stack; - Sigcontext uc_mcontext; - uint32 uc_sigmask; -}; - -typedef struct Itimerval Itimerval; -struct Itimerval { - Timeval it_interval; - Timeval it_value; -}; -#pragma pack off diff --git a/src/pkg/runtime/linux/386/rt0.s b/src/pkg/runtime/linux/386/rt0.s deleted file mode 100644 index 223e6d2ea..000000000 --- a/src/pkg/runtime/linux/386/rt0.s +++ /dev/null @@ -1,9 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Darwin and Linux use the same linkage to main - -TEXT _rt0_386_linux(SB),7,$0 - JMP _rt0_386(SB) - diff --git a/src/pkg/runtime/linux/386/signal.c b/src/pkg/runtime/linux/386/signal.c deleted file mode 100644 index 8916e10bd..000000000 --- a/src/pkg/runtime/linux/386/signal.c +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "runtime.h" -#include "defs.h" -#include "signals.h" -#include "os.h" - -void -runtime·dumpregs(Sigcontext *r) -{ - runtime·printf("eax %x\n", r->eax); - runtime·printf("ebx %x\n", r->ebx); - runtime·printf("ecx %x\n", r->ecx); - runtime·printf("edx %x\n", r->edx); - runtime·printf("edi %x\n", r->edi); - runtime·printf("esi %x\n", r->esi); - runtime·printf("ebp %x\n", r->ebp); - runtime·printf("esp %x\n", r->esp); - runtime·printf("eip %x\n", r->eip); - runtime·printf("eflags %x\n", r->eflags); - runtime·printf("cs %x\n", r->cs); - runtime·printf("fs %x\n", r->fs); - runtime·printf("gs %x\n", r->gs); -} - -/* - * This assembler routine takes the args from registers, puts them on the stack, - * and calls sighandler(). - */ -extern void runtime·sigtramp(void); -extern void runtime·sigignore(void); // just returns -extern void runtime·sigreturn(void); // calls runtime·sigreturn - -String -runtime·signame(int32 sig) -{ - if(sig < 0 || sig >= NSIG) - return runtime·emptystring; - return runtime·gostringnocopy((byte*)runtime·sigtab[sig].name); -} - -void -runtime·sighandler(int32 sig, Siginfo *info, void *context, G *gp) -{ - Ucontext *uc; - Sigcontext *r; - uintptr *sp; - - uc = context; - r = &uc->uc_mcontext; - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)r->eip, (uint8*)r->esp, nil, gp); - return; - } - - if(gp != nil && (runtime·sigtab[sig].flags & SigPanic)) { - // Make it look like a call to the signal func. - // Have to pass arguments out of band since - // augmenting the stack frame would break - // the unwinding code. - gp->sig = sig; - gp->sigcode0 = info->si_code; - gp->sigcode1 = ((uintptr*)info)[3]; - gp->sigpc = r->eip; - - // Only push runtime·sigpanic if r->eip != 0. - // If r->eip == 0, probably panicked because of a - // call to a nil func. Not pushing that onto sp will - // make the trace look like a call to runtime·sigpanic instead. - // (Otherwise the trace will end at runtime·sigpanic and we - // won't get to see who faulted.) - if(r->eip != 0) { - sp = (uintptr*)r->esp; - *--sp = r->eip; - r->esp = (uintptr)sp; - } - r->eip = (uintptr)runtime·sigpanic; - return; - } - - if(runtime·sigtab[sig].flags & SigQueue) { - if(runtime·sigsend(sig) || (runtime·sigtab[sig].flags & SigIgnore)) - return; - runtime·exit(2); // SIGINT, SIGTERM, etc - } - - if(runtime·panicking) // traceback already printed - runtime·exit(2); - runtime·panicking = 1; - - if(sig < 0 || sig >= NSIG) - runtime·printf("Signal %d\n", sig); - else - runtime·printf("%s\n", runtime·sigtab[sig].name); - - runtime·printf("PC=%X\n", r->eip); - runtime·printf("\n"); - - if(runtime·gotraceback()){ - runtime·traceback((void*)r->eip, (void*)r->esp, 0, gp); - runtime·tracebackothers(gp); - runtime·dumpregs(r); - } - - runtime·exit(2); -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = p; - st.ss_size = n; - st.ss_flags = 0; - runtime·sigaltstack(&st, nil); -} - -static void -sigaction(int32 i, void (*fn)(int32, Siginfo*, void*, G*), bool restart) -{ - Sigaction sa; - - runtime·memclr((byte*)&sa, sizeof sa); - sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask = ~0ULL; - sa.sa_restorer = (void*)runtime·sigreturn; - if(fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa.k_sa_handler = fn; - runtime·rt_sigaction(i, &sa, nil, 8); -} - -void -runtime·initsig(int32 queue) -{ - int32 i; - void *fn; - - runtime·siginit(); - - for(i = 0; i<NSIG; i++) { - if(runtime·sigtab[i].flags) { - if((runtime·sigtab[i].flags & SigQueue) != queue) - continue; - if(runtime·sigtab[i].flags & (SigCatch | SigQueue)) - fn = runtime·sighandler; - else - fn = runtime·sigignore; - sigaction(i, fn, (runtime·sigtab[i].flags & SigRestart) != 0); - } - } -} - -void -runtime·resetcpuprofiler(int32 hz) -{ - Itimerval it; - - runtime·memclr((byte*)&it, sizeof it); - if(hz == 0) { - runtime·setitimer(ITIMER_PROF, &it, nil); - sigaction(SIGPROF, SIG_IGN, true); - } else { - sigaction(SIGPROF, runtime·sighandler, true); - it.it_interval.tv_sec = 0; - it.it_interval.tv_usec = 1000000 / hz; - it.it_value = it.it_interval; - runtime·setitimer(ITIMER_PROF, &it, nil); - } - m->profilehz = hz; -} - -void -os·sigpipe(void) -{ - sigaction(SIGPIPE, SIG_DFL, false); - runtime·raisesigpipe(); -} diff --git a/src/pkg/runtime/linux/386/sys.s b/src/pkg/runtime/linux/386/sys.s deleted file mode 100644 index e8b423324..000000000 --- a/src/pkg/runtime/linux/386/sys.s +++ /dev/null @@ -1,317 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// -// System calls and other sys.stuff for 386, Linux -// - -#include "386/asm.h" - -TEXT runtime·exit(SB),7,$0 - MOVL $252, AX // syscall number - MOVL 4(SP), BX - INT $0x80 - INT $3 // not reached - RET - -TEXT runtime·exit1(SB),7,$0 - MOVL $1, AX // exit - exit the current os thread - MOVL 4(SP), BX - INT $0x80 - INT $3 // not reached - RET - -TEXT runtime·write(SB),7,$0 - MOVL $4, AX // syscall - write - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - INT $0x80 - RET - -TEXT runtime·raisesigpipe(SB),7,$12 - MOVL $224, AX // syscall - gettid - INT $0x80 - MOVL AX, 0(SP) // arg 1 tid - MOVL $13, 4(SP) // arg 2 SIGPIPE - MOVL $238, AX // syscall - tkill - INT $0x80 - RET - -TEXT runtime·setitimer(SB),7,$0-24 - MOVL $104, AX // syscall - setitimer - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - INT $0x80 - RET - -TEXT runtime·mincore(SB),7,$0-24 - MOVL $218, AX // syscall - mincore - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - INT $0x80 - RET - -TEXT runtime·gettime(SB), 7, $32 - MOVL $78, AX // syscall - gettimeofday - LEAL 8(SP), BX - MOVL $0, CX - MOVL $0, DX - INT $0x80 - - MOVL 8(SP), BX // sec - MOVL sec+0(FP), DI - MOVL BX, (DI) - MOVL $0, 4(DI) // zero extend 32 -> 64 bits - - MOVL 12(SP), BX // usec - MOVL usec+4(FP), DI - MOVL BX, (DI) - RET - -TEXT runtime·rt_sigaction(SB),7,$0 - MOVL $174, AX // syscall - rt_sigaction - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - MOVL 16(SP), SI - INT $0x80 - RET - -TEXT runtime·sigtramp(SB),7,$44 - get_tls(CX) - - // save g - MOVL g(CX), DI - MOVL DI, 20(SP) - - // g = m->gsignal - MOVL m(CX), BX - MOVL m_gsignal(BX), BX - MOVL BX, g(CX) - - // copy arguments for call to sighandler - MOVL sig+0(FP), BX - MOVL BX, 0(SP) - MOVL info+4(FP), BX - MOVL BX, 4(SP) - MOVL context+8(FP), BX - MOVL BX, 8(SP) - MOVL DI, 12(SP) - - CALL runtime·sighandler(SB) - - // restore g - get_tls(CX) - MOVL 20(SP), BX - MOVL BX, g(CX) - - RET - -TEXT runtime·sigignore(SB),7,$0 - RET - -TEXT runtime·sigreturn(SB),7,$0 - MOVL $173, AX // rt_sigreturn - INT $0x80 - INT $3 // not reached - RET - -TEXT runtime·mmap(SB),7,$0 - MOVL $192, AX // mmap2 - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - MOVL 16(SP), SI - MOVL 20(SP), DI - MOVL 24(SP), BP - SHRL $12, BP - INT $0x80 - CMPL AX, $0xfffff001 - JLS 3(PC) - NOTL AX - INCL AX - RET - -TEXT runtime·munmap(SB),7,$0 - MOVL $91, AX // munmap - MOVL 4(SP), BX - MOVL 8(SP), CX - INT $0x80 - CMPL AX, $0xfffff001 - JLS 2(PC) - INT $3 - RET - -// int32 futex(int32 *uaddr, int32 op, int32 val, -// struct timespec *timeout, int32 *uaddr2, int32 val2); -TEXT runtime·futex(SB),7,$0 - MOVL $240, AX // futex - MOVL 4(SP), BX - MOVL 8(SP), CX - MOVL 12(SP), DX - MOVL 16(SP), SI - MOVL 20(SP), DI - MOVL 24(SP), BP - INT $0x80 - RET - -// int32 clone(int32 flags, void *stack, M *m, G *g, void (*fn)(void)); -TEXT runtime·clone(SB),7,$0 - MOVL $120, AX // clone - MOVL flags+4(SP), BX - MOVL stack+8(SP), CX - MOVL $0, DX // parent tid ptr - MOVL $0, DI // child tid ptr - - // Copy m, g, fn off parent stack for use by child. - SUBL $16, CX - MOVL mm+12(SP), SI - MOVL SI, 0(CX) - MOVL gg+16(SP), SI - MOVL SI, 4(CX) - MOVL fn+20(SP), SI - MOVL SI, 8(CX) - MOVL $1234, 12(CX) - - INT $0x80 - - // In parent, return. - CMPL AX, $0 - JEQ 2(PC) - RET - - // Paranoia: check that SP is as we expect. - MOVL 12(SP), BP - CMPL BP, $1234 - JEQ 2(PC) - INT $3 - - // Initialize AX to Linux tid - MOVL $224, AX - INT $0x80 - - // In child on new stack. Reload registers (paranoia). - MOVL 0(SP), BX // m - MOVL 4(SP), DX // g - MOVL 8(SP), SI // fn - - MOVL AX, m_procid(BX) // save tid as m->procid - - // set up ldt 7+id to point at m->tls. - // newosproc left the id in tls[0]. - LEAL m_tls(BX), BP - MOVL 0(BP), DI - ADDL $7, DI // m0 is LDT#7. count up. - // setldt(tls#, &tls, sizeof tls) - PUSHAL // save registers - PUSHL $32 // sizeof tls - PUSHL BP // &tls - PUSHL DI // tls # - CALL runtime·setldt(SB) - POPL AX - POPL AX - POPL AX - POPAL - - // Now segment is established. Initialize m, g. - get_tls(AX) - MOVL DX, g(AX) - MOVL BX, m(AX) - - CALL runtime·stackcheck(SB) // smashes AX, CX - MOVL 0(DX), DX // paranoia; check they are not nil - MOVL 0(BX), BX - - // more paranoia; check that stack splitting code works - PUSHAL - CALL runtime·emptyfunc(SB) - POPAL - - CALL SI // fn() - CALL runtime·exit1(SB) - MOVL $0x1234, 0x1005 - RET - -TEXT runtime·sigaltstack(SB),7,$-8 - MOVL $186, AX // sigaltstack - MOVL new+4(SP), BX - MOVL old+8(SP), CX - INT $0x80 - CMPL AX, $0xfffff001 - JLS 2(PC) - INT $3 - RET - -// <asm-i386/ldt.h> -// struct user_desc { -// unsigned int entry_number; -// unsigned long base_addr; -// unsigned int limit; -// unsigned int seg_32bit:1; -// unsigned int contents:2; -// unsigned int read_exec_only:1; -// unsigned int limit_in_pages:1; -// unsigned int seg_not_present:1; -// unsigned int useable:1; -// }; -#define SEG_32BIT 0x01 -// contents are the 2 bits 0x02 and 0x04. -#define CONTENTS_DATA 0x00 -#define CONTENTS_STACK 0x02 -#define CONTENTS_CODE 0x04 -#define READ_EXEC_ONLY 0x08 -#define LIMIT_IN_PAGES 0x10 -#define SEG_NOT_PRESENT 0x20 -#define USEABLE 0x40 - -// setldt(int entry, int address, int limit) -TEXT runtime·setldt(SB),7,$32 - MOVL entry+0(FP), BX // entry - MOVL address+4(FP), CX // base address - - /* - * When linking against the system libraries, - * we use its pthread_create and let it set up %gs - * for us. When we do that, the private storage - * we get is not at 0(GS), 4(GS), but -8(GS), -4(GS). - * To insulate the rest of the tool chain from this - * ugliness, 8l rewrites 0(GS) into -8(GS) for us. - * To accommodate that rewrite, we translate - * the address here and bump the limit to 0xffffffff (no limit) - * so that -8(GS) maps to 0(address). - * Also, the final 0(GS) (current 8(CX)) has to point - * to itself, to mimic ELF. - */ - ADDL $0x8, CX // address - MOVL CX, 0(CX) - - // set up user_desc - LEAL 16(SP), AX // struct user_desc - MOVL BX, 0(AX) - MOVL CX, 4(AX) - MOVL $0xfffff, 8(AX) - MOVL $(SEG_32BIT|LIMIT_IN_PAGES|USEABLE|CONTENTS_DATA), 12(AX) // flag bits - - // call modify_ldt - MOVL $1, BX // func = 1 (write) - MOVL AX, CX // user_desc - MOVL $16, DX // sizeof(user_desc) - MOVL $123, AX // syscall - modify_ldt - INT $0x80 - - // breakpoint on error - CMPL AX, $0xfffff001 - JLS 2(PC) - INT $3 - - // compute segment selector - (entry*8+7) - MOVL entry+0(FP), AX - SHLL $3, AX - ADDL $7, AX - MOVW AX, GS - - RET diff --git a/src/pkg/runtime/linux/amd64/defs.h b/src/pkg/runtime/linux/amd64/defs.h deleted file mode 100644 index 70d63145c..000000000 --- a/src/pkg/runtime/linux/amd64/defs.h +++ /dev/null @@ -1,234 +0,0 @@ -// godefs -f -m64 defs.c - -// MACHINE GENERATED - DO NOT EDIT. - -// Constants -enum { - PROT_NONE = 0, - PROT_READ = 0x1, - PROT_WRITE = 0x2, - PROT_EXEC = 0x4, - MAP_ANON = 0x20, - MAP_PRIVATE = 0x2, - MAP_FIXED = 0x10, - SA_RESTART = 0x10000000, - SA_ONSTACK = 0x8000000, - SA_RESTORER = 0x4000000, - SA_SIGINFO = 0x4, - SIGHUP = 0x1, - SIGINT = 0x2, - SIGQUIT = 0x3, - SIGILL = 0x4, - SIGTRAP = 0x5, - SIGABRT = 0x6, - SIGBUS = 0x7, - SIGFPE = 0x8, - SIGKILL = 0x9, - SIGUSR1 = 0xa, - SIGSEGV = 0xb, - SIGUSR2 = 0xc, - SIGPIPE = 0xd, - SIGALRM = 0xe, - SIGSTKFLT = 0x10, - SIGCHLD = 0x11, - SIGCONT = 0x12, - SIGSTOP = 0x13, - SIGTSTP = 0x14, - SIGTTIN = 0x15, - SIGTTOU = 0x16, - SIGURG = 0x17, - SIGXCPU = 0x18, - SIGXFSZ = 0x19, - SIGVTALRM = 0x1a, - SIGPROF = 0x1b, - SIGWINCH = 0x1c, - SIGIO = 0x1d, - SIGPWR = 0x1e, - SIGSYS = 0x1f, - FPE_INTDIV = 0x1, - FPE_INTOVF = 0x2, - FPE_FLTDIV = 0x3, - FPE_FLTOVF = 0x4, - FPE_FLTUND = 0x5, - FPE_FLTRES = 0x6, - FPE_FLTINV = 0x7, - FPE_FLTSUB = 0x8, - BUS_ADRALN = 0x1, - BUS_ADRERR = 0x2, - BUS_OBJERR = 0x3, - SEGV_MAPERR = 0x1, - SEGV_ACCERR = 0x2, - ITIMER_REAL = 0, - ITIMER_VIRTUAL = 0x1, - ITIMER_PROF = 0x2, -}; - -// Types -#pragma pack on - -typedef struct Timespec Timespec; -struct Timespec { - int64 tv_sec; - int64 tv_nsec; -}; - -typedef struct Timeval Timeval; -struct Timeval { - int64 tv_sec; - int64 tv_usec; -}; - -typedef struct Sigaction Sigaction; -struct Sigaction { - void *sa_handler; - uint64 sa_flags; - void *sa_restorer; - uint64 sa_mask; -}; - -typedef struct Siginfo Siginfo; -struct Siginfo { - int32 si_signo; - int32 si_errno; - int32 si_code; - byte pad_godefs_0[4]; - byte _sifields[112]; -}; - -typedef struct Itimerval Itimerval; -struct Itimerval { - Timeval it_interval; - Timeval it_value; -}; -#pragma pack off -// godefs -f -m64 defs1.c - -// MACHINE GENERATED - DO NOT EDIT. - -// Constants - -// Types -#pragma pack on - -typedef struct Usigset Usigset; -struct Usigset { - uint64 __val[16]; -}; - -typedef struct Fpxreg Fpxreg; -struct Fpxreg { - uint16 significand[4]; - uint16 exponent; - uint16 padding[3]; -}; - -typedef struct Xmmreg Xmmreg; -struct Xmmreg { - uint32 element[4]; -}; - -typedef struct Fpstate Fpstate; -struct Fpstate { - uint16 cwd; - uint16 swd; - uint16 ftw; - uint16 fop; - uint64 rip; - uint64 rdp; - uint32 mxcsr; - uint32 mxcr_mask; - Fpxreg _st[8]; - Xmmreg _xmm[16]; - uint32 padding[24]; -}; - -typedef struct Fpxreg1 Fpxreg1; -struct Fpxreg1 { - uint16 significand[4]; - uint16 exponent; - uint16 padding[3]; -}; - -typedef struct Xmmreg1 Xmmreg1; -struct Xmmreg1 { - uint32 element[4]; -}; - -typedef struct Fpstate1 Fpstate1; -struct Fpstate1 { - uint16 cwd; - uint16 swd; - uint16 ftw; - uint16 fop; - uint64 rip; - uint64 rdp; - uint32 mxcsr; - uint32 mxcr_mask; - Fpxreg1 _st[8]; - Xmmreg1 _xmm[16]; - uint32 padding[24]; -}; - -typedef struct Fpreg1 Fpreg1; -struct Fpreg1 { - uint16 significand[4]; - uint16 exponent; -}; - -typedef struct Sigaltstack Sigaltstack; -struct Sigaltstack { - void *ss_sp; - int32 ss_flags; - byte pad_godefs_0[4]; - uint64 ss_size; -}; - -typedef struct Mcontext Mcontext; -struct Mcontext { - int64 gregs[23]; - Fpstate *fpregs; - uint64 __reserved1[8]; -}; - -typedef struct Ucontext Ucontext; -struct Ucontext { - uint64 uc_flags; - Ucontext *uc_link; - Sigaltstack uc_stack; - Mcontext uc_mcontext; - Usigset uc_sigmask; - Fpstate __fpregs_mem; -}; - -typedef struct Sigcontext Sigcontext; -struct Sigcontext { - uint64 r8; - uint64 r9; - uint64 r10; - uint64 r11; - uint64 r12; - uint64 r13; - uint64 r14; - uint64 r15; - uint64 rdi; - uint64 rsi; - uint64 rbp; - uint64 rbx; - uint64 rdx; - uint64 rax; - uint64 rcx; - uint64 rsp; - uint64 rip; - uint64 eflags; - uint16 cs; - uint16 gs; - uint16 fs; - uint16 __pad0; - uint64 err; - uint64 trapno; - uint64 oldmask; - uint64 cr2; - Fpstate1 *fpstate; - uint64 __reserved1[8]; -}; -#pragma pack off diff --git a/src/pkg/runtime/linux/amd64/rt0.s b/src/pkg/runtime/linux/amd64/rt0.s deleted file mode 100644 index dac9ae181..000000000 --- a/src/pkg/runtime/linux/amd64/rt0.s +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Darwin and Linux use the same linkage to main - -TEXT _rt0_amd64_linux(SB),7,$-8 - MOVQ $_rt0_amd64(SB), AX - MOVQ SP, DI - JMP AX diff --git a/src/pkg/runtime/linux/amd64/signal.c b/src/pkg/runtime/linux/amd64/signal.c deleted file mode 100644 index ee90271ed..000000000 --- a/src/pkg/runtime/linux/amd64/signal.c +++ /dev/null @@ -1,194 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "runtime.h" -#include "defs.h" -#include "signals.h" -#include "os.h" - -void -runtime·dumpregs(Sigcontext *r) -{ - runtime·printf("rax %X\n", r->rax); - runtime·printf("rbx %X\n", r->rbx); - runtime·printf("rcx %X\n", r->rcx); - runtime·printf("rdx %X\n", r->rdx); - runtime·printf("rdi %X\n", r->rdi); - runtime·printf("rsi %X\n", r->rsi); - runtime·printf("rbp %X\n", r->rbp); - runtime·printf("rsp %X\n", r->rsp); - runtime·printf("r8 %X\n", r->r8 ); - runtime·printf("r9 %X\n", r->r9 ); - runtime·printf("r10 %X\n", r->r10); - runtime·printf("r11 %X\n", r->r11); - runtime·printf("r12 %X\n", r->r12); - runtime·printf("r13 %X\n", r->r13); - runtime·printf("r14 %X\n", r->r14); - runtime·printf("r15 %X\n", r->r15); - runtime·printf("rip %X\n", r->rip); - runtime·printf("rflags %X\n", r->eflags); - runtime·printf("cs %X\n", (uint64)r->cs); - runtime·printf("fs %X\n", (uint64)r->fs); - runtime·printf("gs %X\n", (uint64)r->gs); -} - -/* - * This assembler routine takes the args from registers, puts them on the stack, - * and calls sighandler(). - */ -extern void runtime·sigtramp(void); -extern void runtime·sigignore(void); // just returns -extern void runtime·sigreturn(void); // calls runtime·sigreturn - -String -runtime·signame(int32 sig) -{ - if(sig < 0 || sig >= NSIG) - return runtime·emptystring; - return runtime·gostringnocopy((byte*)runtime·sigtab[sig].name); -} - -void -runtime·sighandler(int32 sig, Siginfo *info, void *context, G *gp) -{ - Ucontext *uc; - Mcontext *mc; - Sigcontext *r; - uintptr *sp; - - uc = context; - mc = &uc->uc_mcontext; - r = (Sigcontext*)mc; // same layout, more conveient names - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)r->rip, (uint8*)r->rsp, nil, gp); - return; - } - - if(gp != nil && (runtime·sigtab[sig].flags & SigPanic)) { - // Make it look like a call to the signal func. - // Have to pass arguments out of band since - // augmenting the stack frame would break - // the unwinding code. - gp->sig = sig; - gp->sigcode0 = info->si_code; - gp->sigcode1 = ((uintptr*)info)[2]; - gp->sigpc = r->rip; - - // Only push runtime·sigpanic if r->rip != 0. - // If r->rip == 0, probably panicked because of a - // call to a nil func. Not pushing that onto sp will - // make the trace look like a call to runtime·sigpanic instead. - // (Otherwise the trace will end at runtime·sigpanic and we - // won't get to see who faulted.) - if(r->rip != 0) { - sp = (uintptr*)r->rsp; - *--sp = r->rip; - r->rsp = (uintptr)sp; - } - r->rip = (uintptr)runtime·sigpanic; - return; - } - - if(runtime·sigtab[sig].flags & SigQueue) { - if(runtime·sigsend(sig) || (runtime·sigtab[sig].flags & SigIgnore)) - return; - runtime·exit(2); // SIGINT, SIGTERM, etc - } - - if(runtime·panicking) // traceback already printed - runtime·exit(2); - runtime·panicking = 1; - - if(sig < 0 || sig >= NSIG) - runtime·printf("Signal %d\n", sig); - else - runtime·printf("%s\n", runtime·sigtab[sig].name); - - runtime·printf("PC=%X\n", r->rip); - runtime·printf("\n"); - - if(runtime·gotraceback()){ - runtime·traceback((void*)r->rip, (void*)r->rsp, 0, gp); - runtime·tracebackothers(gp); - runtime·dumpregs(r); - } - - runtime·exit(2); -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = p; - st.ss_size = n; - st.ss_flags = 0; - runtime·sigaltstack(&st, nil); -} - -static void -sigaction(int32 i, void (*fn)(int32, Siginfo*, void*, G*), bool restart) -{ - Sigaction sa; - - runtime·memclr((byte*)&sa, sizeof sa); - sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask = ~0ULL; - sa.sa_restorer = (void*)runtime·sigreturn; - if(fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa.sa_handler = fn; - runtime·rt_sigaction(i, &sa, nil, 8); -} - -void -runtime·initsig(int32 queue) -{ - int32 i; - void *fn; - - runtime·siginit(); - - for(i = 0; i<NSIG; i++) { - if(runtime·sigtab[i].flags) { - if((runtime·sigtab[i].flags & SigQueue) != queue) - continue; - if(runtime·sigtab[i].flags & (SigCatch | SigQueue)) - fn = runtime·sighandler; - else - fn = runtime·sigignore; - sigaction(i, fn, (runtime·sigtab[i].flags & SigRestart) != 0); - } - } -} - -void -runtime·resetcpuprofiler(int32 hz) -{ - Itimerval it; - - runtime·memclr((byte*)&it, sizeof it); - if(hz == 0) { - runtime·setitimer(ITIMER_PROF, &it, nil); - sigaction(SIGPROF, SIG_IGN, true); - } else { - sigaction(SIGPROF, runtime·sighandler, true); - it.it_interval.tv_sec = 0; - it.it_interval.tv_usec = 1000000 / hz; - it.it_value = it.it_interval; - runtime·setitimer(ITIMER_PROF, &it, nil); - } - m->profilehz = hz; -} - -void -os·sigpipe(void) -{ - sigaction(SIGPIPE, SIG_DFL, false); - runtime·raisesigpipe(); -} diff --git a/src/pkg/runtime/linux/amd64/sys.s b/src/pkg/runtime/linux/amd64/sys.s deleted file mode 100644 index 66fdab208..000000000 --- a/src/pkg/runtime/linux/amd64/sys.s +++ /dev/null @@ -1,234 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// -// System calls and other sys.stuff for AMD64, Linux -// - -#include "amd64/asm.h" - -TEXT runtime·exit(SB),7,$0-8 - MOVL 8(SP), DI - MOVL $231, AX // exitgroup - force all os threads to exit - SYSCALL - RET - -TEXT runtime·exit1(SB),7,$0-8 - MOVL 8(SP), DI - MOVL $60, AX // exit - exit the current os thread - SYSCALL - RET - -TEXT runtime·open(SB),7,$0-16 - MOVQ 8(SP), DI - MOVL 16(SP), SI - MOVL 20(SP), DX - MOVL $2, AX // syscall entry - SYSCALL - RET - -TEXT runtime·write(SB),7,$0-24 - MOVL 8(SP), DI - MOVQ 16(SP), SI - MOVL 24(SP), DX - MOVL $1, AX // syscall entry - SYSCALL - RET - -TEXT runtime·raisesigpipe(SB),7,$12 - MOVL $186, AX // syscall - gettid - SYSCALL - MOVL AX, DI // arg 1 tid - MOVL $13, SI // arg 2 SIGPIPE - MOVL $200, AX // syscall - tkill - SYSCALL - RET - -TEXT runtime·setitimer(SB),7,$0-24 - MOVL 8(SP), DI - MOVQ 16(SP), SI - MOVQ 24(SP), DX - MOVL $38, AX // syscall entry - SYSCALL - RET - -TEXT runtime·mincore(SB),7,$0-24 - MOVQ 8(SP), DI - MOVQ 16(SP), SI - MOVQ 24(SP), DX - MOVL $27, AX // syscall entry - SYSCALL - RET - -TEXT runtime·gettime(SB), 7, $32 - LEAQ 8(SP), DI - MOVQ $0, SI - MOVQ $0xffffffffff600000, AX - CALL AX - - MOVQ 8(SP), BX // sec - MOVQ sec+0(FP), DI - MOVQ BX, (DI) - - MOVL 16(SP), BX // usec - MOVQ usec+8(FP), DI - MOVL BX, (DI) - RET - -TEXT runtime·rt_sigaction(SB),7,$0-32 - MOVL 8(SP), DI - MOVQ 16(SP), SI - MOVQ 24(SP), DX - MOVQ 32(SP), R10 - MOVL $13, AX // syscall entry - SYSCALL - RET - -TEXT runtime·sigtramp(SB),7,$64 - get_tls(BX) - - // save g - MOVQ g(BX), R10 - MOVQ R10, 40(SP) - - // g = m->gsignal - MOVQ m(BX), BP - MOVQ m_gsignal(BP), BP - MOVQ BP, g(BX) - - MOVQ DI, 0(SP) - MOVQ SI, 8(SP) - MOVQ DX, 16(SP) - MOVQ R10, 24(SP) - - CALL runtime·sighandler(SB) - - // restore g - get_tls(BX) - MOVQ 40(SP), R10 - MOVQ R10, g(BX) - RET - -TEXT runtime·sigignore(SB),7,$0 - RET - -TEXT runtime·sigreturn(SB),7,$0 - MOVL $15, AX // rt_sigreturn - SYSCALL - INT $3 // not reached - -TEXT runtime·mmap(SB),7,$0 - MOVQ 8(SP), DI - MOVQ $0, SI - MOVQ 16(SP), SI - MOVL 24(SP), DX - MOVL 28(SP), R10 - MOVL 32(SP), R8 - MOVL 36(SP), R9 - - MOVL $9, AX // mmap - SYSCALL - CMPQ AX, $0xfffffffffffff001 - JLS 3(PC) - NOTQ AX - INCQ AX - RET - -TEXT runtime·munmap(SB),7,$0 - MOVQ 8(SP), DI - MOVQ 16(SP), SI - MOVQ $11, AX // munmap - SYSCALL - CMPQ AX, $0xfffffffffffff001 - JLS 2(PC) - CALL runtime·notok(SB) - RET - -TEXT runtime·notok(SB),7,$0 - MOVQ $0xf1, BP - MOVQ BP, (BP) - RET - -// int64 futex(int32 *uaddr, int32 op, int32 val, -// struct timespec *timeout, int32 *uaddr2, int32 val2); -TEXT runtime·futex(SB),7,$0 - MOVQ 8(SP), DI - MOVL 16(SP), SI - MOVL 20(SP), DX - MOVQ 24(SP), R10 - MOVQ 32(SP), R8 - MOVL 40(SP), R9 - MOVL $202, AX - SYSCALL - RET - -// int64 clone(int32 flags, void *stack, M *m, G *g, void (*fn)(void)); -TEXT runtime·clone(SB),7,$0 - MOVL flags+8(SP), DI - MOVQ stack+16(SP), SI - - // Copy m, g, fn off parent stack for use by child. - // Careful: Linux system call clobbers CX and R11. - MOVQ mm+24(SP), R8 - MOVQ gg+32(SP), R9 - MOVQ fn+40(SP), R12 - - MOVL $56, AX - SYSCALL - - // In parent, return. - CMPQ AX, $0 - JEQ 2(PC) - RET - - // In child, on new stack. - MOVQ SI, SP - - // Initialize m->procid to Linux tid - MOVL $186, AX // gettid - SYSCALL - MOVQ AX, m_procid(R8) - - // Set FS to point at m->tls. - LEAQ m_tls(R8), DI - CALL runtime·settls(SB) - - // In child, set up new stack - get_tls(CX) - MOVQ R8, m(CX) - MOVQ R9, g(CX) - CALL runtime·stackcheck(SB) - - // Call fn - CALL R12 - - // It shouldn't return. If it does, exit - MOVL $111, DI - MOVL $60, AX - SYSCALL - JMP -3(PC) // keep exiting - -TEXT runtime·sigaltstack(SB),7,$-8 - MOVQ new+8(SP), DI - MOVQ old+16(SP), SI - MOVQ $131, AX - SYSCALL - CMPQ AX, $0xfffffffffffff001 - JLS 2(PC) - CALL runtime·notok(SB) - RET - -// set tls base to DI -TEXT runtime·settls(SB),7,$32 - ADDQ $16, DI // ELF wants to use -16(FS), -8(FS) - - MOVQ DI, SI - MOVQ $0x1002, DI // ARCH_SET_FS - MOVQ $158, AX // arch_prctl - SYSCALL - CMPQ AX, $0xfffffffffffff001 - JLS 2(PC) - CALL runtime·notok(SB) - RET - diff --git a/src/pkg/runtime/linux/arm/defs.h b/src/pkg/runtime/linux/arm/defs.h deleted file mode 100644 index 6b2f22c66..000000000 --- a/src/pkg/runtime/linux/arm/defs.h +++ /dev/null @@ -1,147 +0,0 @@ -// godefs -f-I/usr/src/linux-headers-2.6.26-2-versatile/include defs_arm.c - -// MACHINE GENERATED - DO NOT EDIT. - -// Constants -enum { - PROT_NONE = 0, - PROT_READ = 0x1, - PROT_WRITE = 0x2, - PROT_EXEC = 0x4, - MAP_ANON = 0x20, - MAP_PRIVATE = 0x2, - MAP_FIXED = 0x10, - SA_RESTART = 0x10000000, - SA_ONSTACK = 0x8000000, - SA_RESTORER = 0x4000000, - SA_SIGINFO = 0x4, - SIGHUP = 0x1, - SIGINT = 0x2, - SIGQUIT = 0x3, - SIGILL = 0x4, - SIGTRAP = 0x5, - SIGABRT = 0x6, - SIGBUS = 0x7, - SIGFPE = 0x8, - SIGKILL = 0x9, - SIGUSR1 = 0xa, - SIGSEGV = 0xb, - SIGUSR2 = 0xc, - SIGPIPE = 0xd, - SIGALRM = 0xe, - SIGSTKFLT = 0x10, - SIGCHLD = 0x11, - SIGCONT = 0x12, - SIGSTOP = 0x13, - SIGTSTP = 0x14, - SIGTTIN = 0x15, - SIGTTOU = 0x16, - SIGURG = 0x17, - SIGXCPU = 0x18, - SIGXFSZ = 0x19, - SIGVTALRM = 0x1a, - SIGPROF = 0x1b, - SIGWINCH = 0x1c, - SIGIO = 0x1d, - SIGPWR = 0x1e, - SIGSYS = 0x1f, - FPE_INTDIV = 0x1, - FPE_INTOVF = 0x2, - FPE_FLTDIV = 0x3, - FPE_FLTOVF = 0x4, - FPE_FLTUND = 0x5, - FPE_FLTRES = 0x6, - FPE_FLTINV = 0x7, - FPE_FLTSUB = 0x8, - BUS_ADRALN = 0x1, - BUS_ADRERR = 0x2, - BUS_OBJERR = 0x3, - SEGV_MAPERR = 0x1, - SEGV_ACCERR = 0x2, - ITIMER_REAL = 0, - ITIMER_PROF = 0x2, - ITIMER_VIRTUAL = 0x1, -}; - -// Types -#pragma pack on - -typedef uint32 Sigset; - -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; - 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; - int32 si_errno; - 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 diff --git a/src/pkg/runtime/linux/arm/rt0.s b/src/pkg/runtime/linux/arm/rt0.s deleted file mode 100644 index 8838b4891..000000000 --- a/src/pkg/runtime/linux/arm/rt0.s +++ /dev/null @@ -1,6 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -TEXT _rt0_arm_linux(SB),7,$0 - B _rt0_arm(SB) diff --git a/src/pkg/runtime/linux/arm/signal.c b/src/pkg/runtime/linux/arm/signal.c deleted file mode 100644 index 88a84d112..000000000 --- a/src/pkg/runtime/linux/arm/signal.c +++ /dev/null @@ -1,189 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "runtime.h" -#include "defs.h" -#include "signals.h" -#include "os.h" - -void -runtime·dumpregs(Sigcontext *r) -{ - runtime·printf("trap %x\n", r->trap_no); - runtime·printf("error %x\n", r->error_code); - runtime·printf("oldmask %x\n", r->oldmask); - runtime·printf("r0 %x\n", r->arm_r0); - runtime·printf("r1 %x\n", r->arm_r1); - runtime·printf("r2 %x\n", r->arm_r2); - runtime·printf("r3 %x\n", r->arm_r3); - runtime·printf("r4 %x\n", r->arm_r4); - runtime·printf("r5 %x\n", r->arm_r5); - runtime·printf("r6 %x\n", r->arm_r6); - runtime·printf("r7 %x\n", r->arm_r7); - runtime·printf("r8 %x\n", r->arm_r8); - runtime·printf("r9 %x\n", r->arm_r9); - runtime·printf("r10 %x\n", r->arm_r10); - runtime·printf("fp %x\n", r->arm_fp); - runtime·printf("ip %x\n", r->arm_ip); - runtime·printf("sp %x\n", r->arm_sp); - runtime·printf("lr %x\n", r->arm_lr); - runtime·printf("pc %x\n", r->arm_pc); - runtime·printf("cpsr %x\n", r->arm_cpsr); - runtime·printf("fault %x\n", r->fault_address); -} - -/* - * This assembler routine takes the args from registers, puts them on the stack, - * and calls sighandler(). - */ -extern void runtime·sigtramp(void); -extern void runtime·sigignore(void); // just returns -extern void runtime·sigreturn(void); // calls runtime·sigreturn - -String -runtime·signame(int32 sig) -{ - if(sig < 0 || sig >= NSIG) - return runtime·emptystring; - return runtime·gostringnocopy((byte*)runtime·sigtab[sig].name); -} - -void -runtime·sighandler(int32 sig, Siginfo *info, void *context, G *gp) -{ - Ucontext *uc; - Sigcontext *r; - - uc = context; - r = &uc->uc_mcontext; - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)r->arm_pc, (uint8*)r->arm_sp, (uint8*)r->arm_lr, gp); - return; - } - - if(gp != nil && (runtime·sigtab[sig].flags & SigPanic)) { - // Make it look like a call to the signal func. - // Have to pass arguments out of band since - // augmenting the stack frame would break - // the unwinding code. - gp->sig = sig; - gp->sigcode0 = info->si_code; - gp->sigcode1 = r->fault_address; - gp->sigpc = r->arm_pc; - - // If this is a leaf function, we do smash LR, - // but we're not going back there anyway. - // Don't bother smashing if r->arm_pc is 0, - // which is probably a call to a nil func: the - // old link register is more useful in the stack trace. - if(r->arm_pc != 0) - r->arm_lr = r->arm_pc; - r->arm_pc = (uintptr)runtime·sigpanic; - return; - } - - if(runtime·sigtab[sig].flags & SigQueue) { - if(runtime·sigsend(sig) || (runtime·sigtab[sig].flags & SigIgnore)) - return; - runtime·exit(2); // SIGINT, SIGTERM, etc - } - - if(runtime·panicking) // traceback already printed - runtime·exit(2); - runtime·panicking = 1; - - if(sig < 0 || sig >= NSIG) - runtime·printf("Signal %d\n", sig); - else - runtime·printf("%s\n", runtime·sigtab[sig].name); - - runtime·printf("PC=%x\n", r->arm_pc); - runtime·printf("\n"); - - if(runtime·gotraceback()){ - runtime·traceback((void*)r->arm_pc, (void*)r->arm_sp, (void*)r->arm_lr, gp); - runtime·tracebackothers(gp); - runtime·printf("\n"); - runtime·dumpregs(r); - } - -// breakpoint(); - runtime·exit(2); -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = p; - st.ss_size = n; - st.ss_flags = 0; - runtime·sigaltstack(&st, nil); -} - -static void -sigaction(int32 i, void (*fn)(int32, Siginfo*, void*, G*), bool restart) -{ - Sigaction sa; - - runtime·memclr((byte*)&sa, sizeof sa); - sa.sa_flags = SA_ONSTACK | SA_SIGINFO | SA_RESTORER; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask = ~0ULL; - sa.sa_restorer = (void*)runtime·sigreturn; - if(fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa.sa_handler = fn; - runtime·rt_sigaction(i, &sa, nil, 8); -} - -void -runtime·initsig(int32 queue) -{ - int32 i; - void *fn; - - runtime·siginit(); - - for(i = 0; i<NSIG; i++) { - if(runtime·sigtab[i].flags) { - if((runtime·sigtab[i].flags & SigQueue) != queue) - continue; - if(runtime·sigtab[i].flags & (SigCatch | SigQueue)) - fn = runtime·sighandler; - else - fn = runtime·sigignore; - sigaction(i, fn, (runtime·sigtab[i].flags & SigRestart) != 0); - } - } -} - -void -runtime·resetcpuprofiler(int32 hz) -{ - Itimerval it; - - runtime·memclr((byte*)&it, sizeof it); - if(hz == 0) { - runtime·setitimer(ITIMER_PROF, &it, nil); - sigaction(SIGPROF, SIG_IGN, true); - } else { - sigaction(SIGPROF, runtime·sighandler, true); - it.it_interval.tv_sec = 0; - it.it_interval.tv_usec = 1000000 / hz; - it.it_value = it.it_interval; - runtime·setitimer(ITIMER_PROF, &it, nil); - } - m->profilehz = hz; -} - -void -os·sigpipe(void) -{ - sigaction(SIGPIPE, SIG_DFL, false); - runtime·raisesigpipe(); -} diff --git a/src/pkg/runtime/linux/arm/sys.s b/src/pkg/runtime/linux/arm/sys.s deleted file mode 100644 index ab5349822..000000000 --- a/src/pkg/runtime/linux/arm/sys.s +++ /dev/null @@ -1,289 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// -// System calls and other sys.stuff for arm, Linux -// - -#include "arm/asm.h" - -// OABI -//#define SYS_BASE 0x00900000 - -// EABI -#define SYS_BASE 0x0 - -#define SYS_exit (SYS_BASE + 1) -#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_futex (SYS_BASE + 240) -#define SYS_exit_group (SYS_BASE + 248) -#define SYS_munmap (SYS_BASE + 91) -#define SYS_setitimer (SYS_BASE + 104) -#define SYS_mincore (SYS_BASE + 219) -#define SYS_gettid (SYS_BASE + 224) -#define SYS_tkill (SYS_BASE + 238) - -#define ARM_BASE (SYS_BASE + 0x0f0000) -#define SYS_ARM_cacheflush (ARM_BASE + 2) - -TEXT runtime·write(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_write, R7 - SWI $0 - RET - -TEXT runtime·exit(SB),7,$-4 - MOVW 0(FP), R0 - MOVW $SYS_exit_group, R7 - SWI $0 - MOVW $1234, R0 - MOVW $1002, R1 - MOVW R0, (R1) // fail hard - -TEXT runtime·exit1(SB),7,$-4 - MOVW 0(FP), R0 - MOVW $SYS_exit, R7 - SWI $0 - MOVW $1234, R0 - MOVW $1003, R1 - MOVW R0, (R1) // fail hard - -TEXT runtime·raisesigpipe(SB),7,$-4 - MOVW $SYS_gettid, R7 - SWI $0 - // arg 1 tid already in R0 from gettid - MOVW $13, R1 // arg 2 SIGPIPE - MOVW $SYS_tkill, R7 - SWI $0 - RET - -TEXT runtime·mmap(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW 12(FP), R3 - MOVW 16(FP), R4 - MOVW 20(FP), R5 - MOVW $SYS_mmap2, R7 - SWI $0 - RET - -TEXT runtime·munmap(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $SYS_munmap, R7 - SWI $0 - RET - -TEXT runtime·setitimer(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_setitimer, R7 - SWI $0 - RET - -TEXT runtime·mincore(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW 8(FP), R2 - MOVW $SYS_mincore, R7 - SWI $0 - RET - -TEXT runtime·gettime(SB),7,$32 - /* dummy version - return 0,0 */ - MOVW $0, R1 - MOVW 0(FP), R0 - MOVW R1, 0(R0) - MOVW R1, 4(R0) - MOVW 4(FP), R0 - MOVW R1, 0(R0) - -/* - attempt at real version - seg faults - - MOVW $8(SP), R0 - MOVW $0, R1 - MOVW $SYS_gettimeofday, R7 - SWI $0 - - MOVW 0(FP), R0 // sec - MOVW 8(SP), R1 - MOVW R1, 0(R0) - - MOVW 4(FP), R0 // usec - MOVW 12(SP), R1 - MOVW R1, 0(R0) -*/ - RET - -// int32 futex(int32 *uaddr, int32 op, int32 val, -// struct timespec *timeout, int32 *uaddr2, int32 val2); -TEXT runtime·futex(SB),7,$0 - MOVW 4(SP), R0 - MOVW 8(SP), R1 - MOVW 12(SP), R2 - MOVW 16(SP), R3 - MOVW 20(SP), R4 - MOVW 24(SP), R5 - MOVW $SYS_futex, R7 - SWI $0 - RET - - -// int32 clone(int32 flags, void *stack, M *m, G *g, void (*fn)(void)); -TEXT runtime·clone(SB),7,$0 - MOVW flags+0(FP), R0 - MOVW stack+4(FP), R1 - MOVW $0, R2 // parent tid ptr - MOVW $0, R3 // tls_val - MOVW $0, R4 // child tid ptr - MOVW $0, R5 - - // Copy m, g, fn off parent stack for use by child. - // TODO(kaib): figure out which registers are clobbered by clone and avoid stack copying - MOVW $-16(R1), R1 - MOVW mm+8(FP), R6 - MOVW R6, 0(R1) - MOVW gg+12(FP), R6 - MOVW R6, 4(R1) - MOVW fn+16(FP), R6 - MOVW R6, 8(R1) - MOVW $1234, R6 - MOVW R6, 12(R1) - - MOVW $SYS_clone, R7 - SWI $0 - - // In parent, return. - CMP $0, R0 - BEQ 2(PC) - RET - - // Paranoia: check that SP is as we expect. Use R13 to avoid linker 'fixup' - MOVW 12(R13), R0 - MOVW $1234, R1 - CMP R0, R1 - BEQ 2(PC) - BL runtime·abort(SB) - - MOVW 0(R13), m - MOVW 4(R13), g - - // paranoia; check they are not nil - MOVW 0(m), R0 - MOVW 0(g), R0 - - BL runtime·emptyfunc(SB) // fault if stack check is wrong - - // Initialize m->procid to Linux tid - MOVW $SYS_gettid, R7 - SWI $0 - MOVW R0, m_procid(m) - - // Call fn - MOVW 8(R13), R0 - MOVW $16(R13), R13 - BL (R0) - - MOVW $0, R0 - MOVW R0, 4(R13) - BL runtime·exit1(SB) - - // It shouldn't return - MOVW $1234, R0 - MOVW $1005, R1 - MOVW R0, (R1) - - -TEXT runtime·cacheflush(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $0, R2 - MOVW $SYS_ARM_cacheflush, R7 - SWI $0 - RET - -TEXT runtime·sigaltstack(SB),7,$0 - MOVW 0(FP), R0 - MOVW 4(FP), R1 - MOVW $SYS_sigaltstack, R7 - SWI $0 - RET - -TEXT runtime·sigignore(SB),7,$0 - RET - -TEXT runtime·sigtramp(SB),7,$24 - // save g - MOVW g, R3 - MOVW g, 20(R13) - - // g = m->gsignal - MOVW m_gsignal(m), g - - // copy arguments for call to sighandler - MOVW R0, 4(R13) - MOVW R1, 8(R13) - MOVW R2, 12(R13) - MOVW R3, 16(R13) - - BL runtime·sighandler(SB) - - // restore g - MOVW 20(R13), g - - RET - -TEXT runtime·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 runtime·sigreturn(SB),7,$0 - MOVW $SYS_rt_sigreturn, R7 - SWI $0 - RET - -// Use kernel version instead of native armcas in ../../arm.s. -// See ../../../sync/atomic/asm_linux_arm.s for details. -TEXT cas<>(SB),7,$0 - MOVW $0xffff0fc0, PC - -TEXT runtime·cas(SB),7,$0 - MOVW valptr+0(FP), R2 - MOVW old+4(FP), R0 -casagain: - MOVW new+8(FP), R1 - BL cas<>(SB) - BCC cascheck - MOVW $1, R0 - RET -cascheck: - // Kernel lies; double-check. - MOVW valptr+0(FP), R2 - MOVW old+4(FP), R0 - MOVW 0(R2), R3 - CMP R0, R3 - BEQ casagain - MOVW $0, R0 - RET - - -TEXT runtime·casp(SB),7,$0 - B runtime·cas(SB) - diff --git a/src/pkg/runtime/linux/defs.c b/src/pkg/runtime/linux/defs.c deleted file mode 100644 index 5dda78789..000000000 --- a/src/pkg/runtime/linux/defs.c +++ /dev/null @@ -1,95 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Input to godefs - godefs -f -m64 defs.c >amd64/defs.h - godefs -f -m64 defs1.c >>amd64/defs.h - */ - -// Linux glibc and Linux kernel define different and conflicting -// definitions for struct sigaction, struct timespec, etc. -// We want the kernel ones, which are in the asm/* headers. -// But then we'd get conflicts when we include the system -// headers for things like ucontext_t, so that happens in -// a separate file, defs1.c. - -#include <asm/posix_types.h> -#define size_t __kernel_size_t -#include <asm/signal.h> -#include <asm/siginfo.h> -#include <asm/mman.h> - -enum { - $PROT_NONE = PROT_NONE, - $PROT_READ = PROT_READ, - $PROT_WRITE = PROT_WRITE, - $PROT_EXEC = PROT_EXEC, - - $MAP_ANON = MAP_ANONYMOUS, - $MAP_PRIVATE = MAP_PRIVATE, - $MAP_FIXED = MAP_FIXED, - - $SA_RESTART = SA_RESTART, - $SA_ONSTACK = SA_ONSTACK, - $SA_RESTORER = SA_RESTORER, - $SA_SIGINFO = SA_SIGINFO, - - $SIGHUP = SIGHUP, - $SIGINT = SIGINT, - $SIGQUIT = SIGQUIT, - $SIGILL = SIGILL, - $SIGTRAP = SIGTRAP, - $SIGABRT = SIGABRT, - $SIGBUS = SIGBUS, - $SIGFPE = SIGFPE, - $SIGKILL = SIGKILL, - $SIGUSR1 = SIGUSR1, - $SIGSEGV = SIGSEGV, - $SIGUSR2 = SIGUSR2, - $SIGPIPE = SIGPIPE, - $SIGALRM = SIGALRM, - $SIGSTKFLT = SIGSTKFLT, - $SIGCHLD = SIGCHLD, - $SIGCONT = SIGCONT, - $SIGSTOP = SIGSTOP, - $SIGTSTP = SIGTSTP, - $SIGTTIN = SIGTTIN, - $SIGTTOU = SIGTTOU, - $SIGURG = SIGURG, - $SIGXCPU = SIGXCPU, - $SIGXFSZ = SIGXFSZ, - $SIGVTALRM = SIGVTALRM, - $SIGPROF = SIGPROF, - $SIGWINCH = SIGWINCH, - $SIGIO = SIGIO, - $SIGPWR = SIGPWR, - $SIGSYS = SIGSYS, - - $FPE_INTDIV = FPE_INTDIV, - $FPE_INTOVF = FPE_INTOVF, - $FPE_FLTDIV = FPE_FLTDIV, - $FPE_FLTOVF = FPE_FLTOVF, - $FPE_FLTUND = FPE_FLTUND, - $FPE_FLTRES = FPE_FLTRES, - $FPE_FLTINV = FPE_FLTINV, - $FPE_FLTSUB = FPE_FLTSUB, - - $BUS_ADRALN = BUS_ADRALN, - $BUS_ADRERR = BUS_ADRERR, - $BUS_OBJERR = BUS_OBJERR, - - $SEGV_MAPERR = SEGV_MAPERR, - $SEGV_ACCERR = SEGV_ACCERR, - - $ITIMER_REAL = ITIMER_REAL, - $ITIMER_VIRTUAL = ITIMER_VIRTUAL, - $ITIMER_PROF = ITIMER_PROF, -}; - -typedef struct timespec $Timespec; -typedef struct timeval $Timeval; -typedef struct sigaction $Sigaction; -typedef siginfo_t $Siginfo; -typedef struct itimerval $Itimerval; diff --git a/src/pkg/runtime/linux/defs1.c b/src/pkg/runtime/linux/defs1.c deleted file mode 100644 index e737f8e9e..000000000 --- a/src/pkg/runtime/linux/defs1.c +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Input to godefs - godefs -f -m64 defs.c >amd64/defs.h - godefs -f -m64 defs1.c >>amd64/defs.h - */ - -#include <ucontext.h> - -typedef __sigset_t $Usigset; -typedef struct _libc_fpxreg $Fpxreg; -typedef struct _libc_xmmreg $Xmmreg; -typedef struct _libc_fpstate $Fpstate; -typedef struct _fpxreg $Fpxreg1; -typedef struct _xmmreg $Xmmreg1; -typedef struct _fpstate $Fpstate1; -typedef struct _fpreg $Fpreg1; -typedef struct sigaltstack $Sigaltstack; -typedef mcontext_t $Mcontext; -typedef ucontext_t $Ucontext; -typedef struct sigcontext $Sigcontext; diff --git a/src/pkg/runtime/linux/defs2.c b/src/pkg/runtime/linux/defs2.c deleted file mode 100644 index ff641fff2..000000000 --- a/src/pkg/runtime/linux/defs2.c +++ /dev/null @@ -1,120 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Input to godefs - godefs -f -m32 \ - -f -I/home/rsc/pub/linux-2.6/arch/x86/include \ - -f -I/home/rsc/pub/linux-2.6/include \ - -f -D_LOOSE_KERNEL_NAMES \ - -f -D__ARCH_SI_UID_T'='__kernel_uid32_t \ - defs2.c >386/defs.h - - * The asm header tricks we have to use for Linux on amd64 - * (see defs.c and defs1.c) don't work here, so this is yet another - * file. Sigh. - */ - -#include <asm/signal.h> -#include <asm/mman.h> -#include <asm/sigcontext.h> -#include <asm/ucontext.h> -#include <asm/siginfo.h> - -/* -#include <sys/signal.h> -#include <sys/mman.h> -#include <ucontext.h> -*/ - -/* This is the sigaction structure from the Linux 2.1.68 kernel which - is used with the rt_sigaction system call. For 386 this is not - defined in any public header file. */ - -struct kernel_sigaction { - __sighandler_t k_sa_handler; - unsigned long sa_flags; - void (*sa_restorer) (void); - sigset_t sa_mask; -}; - -enum { - $PROT_NONE = PROT_NONE, - $PROT_READ = PROT_READ, - $PROT_WRITE = PROT_WRITE, - $PROT_EXEC = PROT_EXEC, - - $MAP_ANON = MAP_ANONYMOUS, - $MAP_PRIVATE = MAP_PRIVATE, - $MAP_FIXED = MAP_FIXED, - - $SA_RESTART = SA_RESTART, - $SA_ONSTACK = SA_ONSTACK, - $SA_RESTORER = SA_RESTORER, - $SA_SIGINFO = SA_SIGINFO, - - $SIGHUP = SIGHUP, - $SIGINT = SIGINT, - $SIGQUIT = SIGQUIT, - $SIGILL = SIGILL, - $SIGTRAP = SIGTRAP, - $SIGABRT = SIGABRT, - $SIGBUS = SIGBUS, - $SIGFPE = SIGFPE, - $SIGKILL = SIGKILL, - $SIGUSR1 = SIGUSR1, - $SIGSEGV = SIGSEGV, - $SIGUSR2 = SIGUSR2, - $SIGPIPE = SIGPIPE, - $SIGALRM = SIGALRM, - $SIGSTKFLT = SIGSTKFLT, - $SIGCHLD = SIGCHLD, - $SIGCONT = SIGCONT, - $SIGSTOP = SIGSTOP, - $SIGTSTP = SIGTSTP, - $SIGTTIN = SIGTTIN, - $SIGTTOU = SIGTTOU, - $SIGURG = SIGURG, - $SIGXCPU = SIGXCPU, - $SIGXFSZ = SIGXFSZ, - $SIGVTALRM = SIGVTALRM, - $SIGPROF = SIGPROF, - $SIGWINCH = SIGWINCH, - $SIGIO = SIGIO, - $SIGPWR = SIGPWR, - $SIGSYS = SIGSYS, - - $FPE_INTDIV = FPE_INTDIV, - $FPE_INTOVF = FPE_INTOVF, - $FPE_FLTDIV = FPE_FLTDIV, - $FPE_FLTOVF = FPE_FLTOVF, - $FPE_FLTUND = FPE_FLTUND, - $FPE_FLTRES = FPE_FLTRES, - $FPE_FLTINV = FPE_FLTINV, - $FPE_FLTSUB = FPE_FLTSUB, - - $BUS_ADRALN = BUS_ADRALN, - $BUS_ADRERR = BUS_ADRERR, - $BUS_OBJERR = BUS_OBJERR, - - $SEGV_MAPERR = SEGV_MAPERR, - $SEGV_ACCERR = SEGV_ACCERR, - - $ITIMER_REAL = ITIMER_REAL, - $ITIMER_VIRTUAL = ITIMER_VIRTUAL, - $ITIMER_PROF = ITIMER_PROF, -}; - -typedef struct _fpreg $Fpreg; -typedef struct _fpxreg $Fpxreg; -typedef struct _xmmreg $Xmmreg; -typedef struct _fpstate $Fpstate; -typedef struct timespec $Timespec; -typedef struct timeval $Timeval; -typedef struct kernel_sigaction $Sigaction; -typedef siginfo_t $Siginfo; -typedef struct sigaltstack $Sigaltstack; -typedef struct sigcontext $Sigcontext; -typedef struct ucontext $Ucontext; -typedef struct itimerval $Itimerval; diff --git a/src/pkg/runtime/linux/defs_arm.c b/src/pkg/runtime/linux/defs_arm.c deleted file mode 100644 index 1f935046e..000000000 --- a/src/pkg/runtime/linux/defs_arm.c +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Input to godefs - * 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> -#include <sys/mman.h> -#include <ucontext.h> -*/ - -enum { - $PROT_NONE = PROT_NONE, - $PROT_READ = PROT_READ, - $PROT_WRITE = PROT_WRITE, - $PROT_EXEC = PROT_EXEC, - - $MAP_ANON = MAP_ANONYMOUS, - $MAP_PRIVATE = MAP_PRIVATE, - $MAP_FIXED = MAP_FIXED, - - $SA_RESTART = SA_RESTART, - $SA_ONSTACK = SA_ONSTACK, - $SA_RESTORER = SA_RESTORER, - $SA_SIGINFO = SA_SIGINFO, - - $SIGHUP = SIGHUP, - $SIGINT = SIGINT, - $SIGQUIT = SIGQUIT, - $SIGILL = SIGILL, - $SIGTRAP = SIGTRAP, - $SIGABRT = SIGABRT, - $SIGBUS = SIGBUS, - $SIGFPE = SIGFPE, - $SIGKILL = SIGKILL, - $SIGUSR1 = SIGUSR1, - $SIGSEGV = SIGSEGV, - $SIGUSR2 = SIGUSR2, - $SIGPIPE = SIGPIPE, - $SIGALRM = SIGALRM, - $SIGSTKFLT = SIGSTKFLT, - $SIGCHLD = SIGCHLD, - $SIGCONT = SIGCONT, - $SIGSTOP = SIGSTOP, - $SIGTSTP = SIGTSTP, - $SIGTTIN = SIGTTIN, - $SIGTTOU = SIGTTOU, - $SIGURG = SIGURG, - $SIGXCPU = SIGXCPU, - $SIGXFSZ = SIGXFSZ, - $SIGVTALRM = SIGVTALRM, - $SIGPROF = SIGPROF, - $SIGWINCH = SIGWINCH, - $SIGIO = SIGIO, - $SIGPWR = SIGPWR, - $SIGSYS = SIGSYS, - - $FPE_INTDIV = FPE_INTDIV & 0xFFFF, - $FPE_INTOVF = FPE_INTOVF & 0xFFFF, - $FPE_FLTDIV = FPE_FLTDIV & 0xFFFF, - $FPE_FLTOVF = FPE_FLTOVF & 0xFFFF, - $FPE_FLTUND = FPE_FLTUND & 0xFFFF, - $FPE_FLTRES = FPE_FLTRES & 0xFFFF, - $FPE_FLTINV = FPE_FLTINV & 0xFFFF, - $FPE_FLTSUB = FPE_FLTSUB & 0xFFFF, - - $BUS_ADRALN = BUS_ADRALN & 0xFFFF, - $BUS_ADRERR = BUS_ADRERR & 0xFFFF, - $BUS_OBJERR = BUS_OBJERR & 0xFFFF, - - $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 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; - int si_errno; - int si_code; - char _sifields[4]; -}; - -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; diff --git a/src/pkg/runtime/linux/mem.c b/src/pkg/runtime/linux/mem.c deleted file mode 100644 index ad0fac6d3..000000000 --- a/src/pkg/runtime/linux/mem.c +++ /dev/null @@ -1,113 +0,0 @@ -#include "runtime.h" -#include "defs.h" -#include "os.h" -#include "malloc.h" - -enum -{ - ENOMEM = 12, -}; - -static int32 -addrspace_free(void *v, uintptr n) -{ - uintptr page_size = 4096; - uintptr off; - int8 one_byte; - - for(off = 0; off < n; off += page_size) { - int32 errval = runtime·mincore((int8 *)v + off, page_size, (void *)&one_byte); - // errval is 0 if success, or -(error_code) if error. - if (errval == 0 || errval != -ENOMEM) - return 0; - } - USED(v); - USED(n); - return 1; -} - - -void* -runtime·SysAlloc(uintptr n) -{ - void *p; - - mstats.sys += n; - p = runtime·mmap(nil, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); - if(p < (void*)4096) { - if(p == (void*)EACCES) { - runtime·printf("runtime: mmap: access denied\n"); - runtime·printf("if you're running SELinux, enable execmem for this process.\n"); - runtime·exit(2); - } - return nil; - } - return p; -} - -void -runtime·SysUnused(void *v, uintptr n) -{ - USED(v); - USED(n); - // TODO(rsc): call madvise MADV_DONTNEED -} - -void -runtime·SysFree(void *v, uintptr n) -{ - mstats.sys -= n; - runtime·munmap(v, n); -} - -void* -runtime·SysReserve(void *v, uintptr n) -{ - void *p; - - // On 64-bit, people with ulimit -v set complain if we reserve too - // much address space. Instead, assume that the reservation is okay - // and check the assumption in SysMap. - if(sizeof(void*) == 8) - return v; - - p = runtime·mmap(v, n, PROT_NONE, MAP_ANON|MAP_PRIVATE, -1, 0); - if(p < (void*)4096) { - return nil; - } - return p; -} - -void -runtime·SysMap(void *v, uintptr n) -{ - void *p; - - mstats.sys += n; - - // On 64-bit, we don't actually have v reserved, so tread carefully. - if(sizeof(void*) == 8) { - p = runtime·mmap(v, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); - if(p != v && addrspace_free(v, n)) { - // On some systems, mmap ignores v without - // MAP_FIXED, so retry if the address space is free. - if(p > (void*)4096) { - runtime·munmap(p, n); - } - p = runtime·mmap(v, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0); - } - if(p == (void*)ENOMEM) - runtime·throw("runtime: out of memory"); - if(p != v) { - runtime·printf("runtime: address space conflict: map(%p) = %p\n", v, p); - runtime·throw("runtime: address space conflict"); - } - return; - } - - p = runtime·mmap(v, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0); - if(p == (void*)ENOMEM) - runtime·throw("runtime: out of memory"); - if(p != v) - runtime·throw("runtime: cannot map pages in arena address space"); -} diff --git a/src/pkg/runtime/linux/os.h b/src/pkg/runtime/linux/os.h deleted file mode 100644 index 0bb8d0339..000000000 --- a/src/pkg/runtime/linux/os.h +++ /dev/null @@ -1,19 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#define SIG_DFL ((void*)0) -#define SIG_IGN ((void*)1) - -// Linux-specific system calls -int32 runtime·futex(uint32*, int32, uint32, Timespec*, uint32*, uint32); -int32 runtime·clone(int32, void*, M*, G*, void(*)(void)); - -struct Sigaction; -void runtime·rt_sigaction(uintptr, struct Sigaction*, void*, uintptr); - -void runtime·sigaltstack(Sigaltstack*, Sigaltstack*); -void runtime·sigpanic(void); -void runtime·setitimer(int32, Itimerval*, Itimerval*); - -void runtime·raisesigpipe(void); diff --git a/src/pkg/runtime/linux/signals.h b/src/pkg/runtime/linux/signals.h deleted file mode 100644 index 919b80ea2..000000000 --- a/src/pkg/runtime/linux/signals.h +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#define C SigCatch -#define I SigIgnore -#define R SigRestart -#define Q SigQueue -#define P SigPanic - -SigTab runtime·sigtab[] = { - /* 0 */ 0, "SIGNONE: no trap", - /* 1 */ Q+R, "SIGHUP: terminal line hangup", - /* 2 */ Q+R, "SIGINT: interrupt", - /* 3 */ C, "SIGQUIT: quit", - /* 4 */ C+P, "SIGILL: illegal instruction", - /* 5 */ C, "SIGTRAP: trace trap", - /* 6 */ C, "SIGABRT: abort", - /* 7 */ C+P, "SIGBUS: bus error", - /* 8 */ C+P, "SIGFPE: floating-point exception", - /* 9 */ 0, "SIGKILL: kill", - /* 10 */ Q+I+R, "SIGUSR1: user-defined signal 1", - /* 11 */ C+P, "SIGSEGV: segmentation violation", - /* 12 */ Q+I+R, "SIGUSR2: user-defined signal 2", - /* 13 */ I, "SIGPIPE: write to broken pipe", - /* 14 */ Q+I+R, "SIGALRM: alarm clock", - /* 15 */ Q+R, "SIGTERM: termination", - /* 16 */ C, "SIGSTKFLT: stack fault", - /* 17 */ Q+I+R, "SIGCHLD: child status has changed", - /* 18 */ 0, "SIGCONT: continue", - /* 19 */ 0, "SIGSTOP: stop, unblockable", - /* 20 */ Q+I+R, "SIGTSTP: keyboard stop", - /* 21 */ Q+I+R, "SIGTTIN: background read from tty", - /* 22 */ Q+I+R, "SIGTTOU: background write to tty", - /* 23 */ Q+I+R, "SIGURG: urgent condition on socket", - /* 24 */ Q+I+R, "SIGXCPU: cpu limit exceeded", - /* 25 */ Q+I+R, "SIGXFSZ: file size limit exceeded", - /* 26 */ Q+I+R, "SIGVTALRM: virtual alarm clock", - /* 27 */ Q+I+R, "SIGPROF: profiling alarm clock", - /* 28 */ Q+I+R, "SIGWINCH: window size change", - /* 29 */ Q+I+R, "SIGIO: i/o now possible", - /* 30 */ Q+I+R, "SIGPWR: power failure restart", - /* 31 */ C, "SIGSYS: bad system call", -}; -#undef C -#undef I -#undef R -#undef Q -#undef P - -#define NSIG 32 diff --git a/src/pkg/runtime/linux/thread.c b/src/pkg/runtime/linux/thread.c deleted file mode 100644 index 7c7ca7b4e..000000000 --- a/src/pkg/runtime/linux/thread.c +++ /dev/null @@ -1,305 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "runtime.h" -#include "defs.h" -#include "os.h" -#include "stack.h" - -extern SigTab runtime·sigtab[]; - -// Linux futex. -// -// futexsleep(uint32 *addr, uint32 val) -// futexwakeup(uint32 *addr) -// -// Futexsleep atomically checks if *addr == val and if so, sleeps on addr. -// Futexwakeup wakes up one thread sleeping on addr. -// Futexsleep is allowed to wake up spuriously. - -enum -{ - FUTEX_WAIT = 0, - FUTEX_WAKE = 1, - - EINTR = 4, - EAGAIN = 11, -}; - -// TODO(rsc): I tried using 1<<40 here but futex woke up (-ETIMEDOUT). -// I wonder if the timespec that gets to the kernel -// actually has two 32-bit numbers in it, so that -// a 64-bit 1<<40 ends up being 0 seconds, -// 1<<8 nanoseconds. -static Timespec longtime = -{ - 1<<30, // 34 years - 0 -}; - -// Atomically, -// if(*addr == val) sleep -// Might be woken up spuriously; that's allowed. -static void -futexsleep(uint32 *addr, uint32 val) -{ - // Some Linux kernels have a bug where futex of - // FUTEX_WAIT returns an internal error code - // as an errno. Libpthread ignores the return value - // here, and so can we: as it says a few lines up, - // spurious wakeups are allowed. - runtime·futex(addr, FUTEX_WAIT, val, &longtime, nil, 0); -} - -// If any procs are sleeping on addr, wake up at least one. -static void -futexwakeup(uint32 *addr) -{ - int64 ret; - - ret = runtime·futex(addr, FUTEX_WAKE, 1, nil, nil, 0); - - if(ret >= 0) - return; - - // I don't know that futex wakeup can return - // EAGAIN or EINTR, but if it does, it would be - // safe to loop and call futex again. - - runtime·prints("futexwakeup addr="); - runtime·printpointer(addr); - runtime·prints(" returned "); - runtime·printint(ret); - runtime·prints("\n"); - *(int32*)0x1006 = 0x1006; -} - - -// Lock and unlock. -// -// The lock state is a single 32-bit word that holds -// a 31-bit count of threads waiting for the lock -// and a single bit (the low bit) saying whether the lock is held. -// The uncontended case runs entirely in user space. -// When contention is detected, we defer to the kernel (futex). -// -// A reminder: compare-and-swap runtime·cas(addr, old, new) does -// if(*addr == old) { *addr = new; return 1; } -// else return 0; -// but atomically. - -static void -futexlock(Lock *l) -{ - uint32 v; - -again: - v = l->key; - if((v&1) == 0){ - if(runtime·cas(&l->key, v, v|1)){ - // Lock wasn't held; we grabbed it. - return; - } - goto again; - } - - // Lock was held; try to add ourselves to the waiter count. - if(!runtime·cas(&l->key, v, v+2)) - goto again; - - // We're accounted for, now sleep in the kernel. - // - // We avoid the obvious lock/unlock race because - // the kernel won't put us to sleep if l->key has - // changed underfoot and is no longer v+2. - // - // We only really care that (v&1) == 1 (the lock is held), - // and in fact there is a futex variant that could - // accommodate that check, but let's not get carried away.) - futexsleep(&l->key, v+2); - - // We're awake: remove ourselves from the count. - for(;;){ - v = l->key; - if(v < 2) - runtime·throw("bad lock key"); - if(runtime·cas(&l->key, v, v-2)) - break; - } - - // Try for the lock again. - goto again; -} - -static void -futexunlock(Lock *l) -{ - uint32 v; - - // Atomically get value and clear lock bit. -again: - v = l->key; - if((v&1) == 0) - runtime·throw("unlock of unlocked lock"); - if(!runtime·cas(&l->key, v, v&~1)) - goto again; - - // If there were waiters, wake one. - if(v & ~1) - futexwakeup(&l->key); -} - -void -runtime·lock(Lock *l) -{ - if(m->locks < 0) - runtime·throw("lock count"); - m->locks++; - futexlock(l); -} - -void -runtime·unlock(Lock *l) -{ - m->locks--; - if(m->locks < 0) - runtime·throw("lock count"); - futexunlock(l); -} - -void -runtime·destroylock(Lock*) -{ -} - - -// One-time notifications. -// -// Since the lock/unlock implementation already -// takes care of sleeping in the kernel, we just reuse it. -// (But it's a weird use, so it gets its own interface.) -// -// We use a lock to represent the event: -// unlocked == event has happened. -// Thus the lock starts out locked, and to wait for the -// event you try to lock the lock. To signal the event, -// you unlock the lock. - -void -runtime·noteclear(Note *n) -{ - n->lock.key = 0; // memset(n, 0, sizeof *n) - futexlock(&n->lock); -} - -void -runtime·notewakeup(Note *n) -{ - futexunlock(&n->lock); -} - -void -runtime·notesleep(Note *n) -{ - futexlock(&n->lock); - futexunlock(&n->lock); // Let other sleepers find out too. -} - - -// Clone, the Linux rfork. -enum -{ - CLONE_VM = 0x100, - CLONE_FS = 0x200, - CLONE_FILES = 0x400, - CLONE_SIGHAND = 0x800, - CLONE_PTRACE = 0x2000, - CLONE_VFORK = 0x4000, - CLONE_PARENT = 0x8000, - CLONE_THREAD = 0x10000, - CLONE_NEWNS = 0x20000, - CLONE_SYSVSEM = 0x40000, - CLONE_SETTLS = 0x80000, - CLONE_PARENT_SETTID = 0x100000, - CLONE_CHILD_CLEARTID = 0x200000, - CLONE_UNTRACED = 0x800000, - CLONE_CHILD_SETTID = 0x1000000, - CLONE_STOPPED = 0x2000000, - CLONE_NEWUTS = 0x4000000, - CLONE_NEWIPC = 0x8000000, -}; - -void -runtime·newosproc(M *m, G *g, void *stk, void (*fn)(void)) -{ - int32 ret; - int32 flags; - - /* - * note: strace gets confused if we use CLONE_PTRACE here. - */ - flags = CLONE_VM /* share memory */ - | CLONE_FS /* share cwd, etc */ - | CLONE_FILES /* share fd table */ - | CLONE_SIGHAND /* share sig handler table */ - | CLONE_THREAD /* revisit - okay for now */ - ; - - m->tls[0] = m->id; // so 386 asm can find it - if(0){ - runtime·printf("newosproc stk=%p m=%p g=%p fn=%p clone=%p id=%d/%d ostk=%p\n", - stk, m, g, fn, runtime·clone, m->id, m->tls[0], &m); - } - - if((ret = runtime·clone(flags, stk, m, g, fn)) < 0) { - runtime·printf("runtime: failed to create new OS thread (have %d already; errno=%d)\n", runtime·mcount(), -ret); - runtime·throw("runtime.newosproc"); - } -} - -void -runtime·osinit(void) -{ -} - -void -runtime·goenvs(void) -{ - runtime·goenvs_unix(); -} - -// Called to initialize a new m (including the bootstrap m). -void -runtime·minit(void) -{ - // Initialize signal handling. - m->gsignal = runtime·malg(32*1024); // OS X wants >=8K, Linux >=2K - runtime·signalstack(m->gsignal->stackguard - StackGuard, 32*1024); -} - -void -runtime·sigpanic(void) -{ - switch(g->sig) { - case SIGBUS: - if(g->sigcode0 == BUS_ADRERR && g->sigcode1 < 0x1000) - runtime·panicstring("invalid memory address or nil pointer dereference"); - runtime·printf("unexpected fault address %p\n", g->sigcode1); - runtime·throw("fault"); - case SIGSEGV: - if((g->sigcode0 == 0 || g->sigcode0 == SEGV_MAPERR || g->sigcode0 == SEGV_ACCERR) && g->sigcode1 < 0x1000) - runtime·panicstring("invalid memory address or nil pointer dereference"); - runtime·printf("unexpected fault address %p\n", g->sigcode1); - runtime·throw("fault"); - case SIGFPE: - switch(g->sigcode0) { - case FPE_INTDIV: - runtime·panicstring("integer divide by zero"); - case FPE_INTOVF: - runtime·panicstring("integer overflow"); - } - runtime·panicstring("floating point error"); - } - runtime·panicstring(runtime·sigtab[g->sig].name); -} |