diff options
Diffstat (limited to 'src/pkg/runtime/freebsd')
-rw-r--r-- | src/pkg/runtime/freebsd/386/defs.h | 187 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/386/rt0.s | 9 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/386/signal.c | 191 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/386/sys.s | 239 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/amd64/defs.h | 198 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/amd64/rt0.s | 9 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/amd64/signal.c | 199 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/amd64/sys.s | 182 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/defs.c | 108 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/mem.c | 74 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/os.h | 12 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/signals.h | 52 | ||||
-rw-r--r-- | src/pkg/runtime/freebsd/thread.c | 206 |
13 files changed, 0 insertions, 1666 deletions
diff --git a/src/pkg/runtime/freebsd/386/defs.h b/src/pkg/runtime/freebsd/386/defs.h deleted file mode 100644 index ae12b2019..000000000 --- a/src/pkg/runtime/freebsd/386/defs.h +++ /dev/null @@ -1,187 +0,0 @@ -// godefs -f -m32 defs.c - -// MACHINE GENERATED - DO NOT EDIT. - -// Constants -enum { - PROT_NONE = 0, - PROT_READ = 0x1, - PROT_WRITE = 0x2, - PROT_EXEC = 0x4, - MAP_ANON = 0x1000, - MAP_PRIVATE = 0x2, - MAP_FIXED = 0x10, - SA_SIGINFO = 0x40, - SA_RESTART = 0x2, - SA_ONSTACK = 0x1, - UMTX_OP_WAIT = 0x2, - UMTX_OP_WAKE = 0x3, - EINTR = 0x4, - SIGHUP = 0x1, - SIGINT = 0x2, - SIGQUIT = 0x3, - SIGILL = 0x4, - SIGTRAP = 0x5, - SIGABRT = 0x6, - SIGEMT = 0x7, - SIGFPE = 0x8, - SIGKILL = 0x9, - SIGBUS = 0xa, - SIGSEGV = 0xb, - SIGSYS = 0xc, - SIGPIPE = 0xd, - SIGALRM = 0xe, - SIGTERM = 0xf, - SIGURG = 0x10, - SIGSTOP = 0x11, - SIGTSTP = 0x12, - SIGCONT = 0x13, - SIGCHLD = 0x14, - SIGTTIN = 0x15, - SIGTTOU = 0x16, - SIGIO = 0x17, - SIGXCPU = 0x18, - SIGXFSZ = 0x19, - SIGVTALRM = 0x1a, - SIGPROF = 0x1b, - SIGWINCH = 0x1c, - SIGINFO = 0x1d, - SIGUSR1 = 0x1e, - SIGUSR2 = 0x1f, - FPE_INTDIV = 0x2, - FPE_INTOVF = 0x1, - 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 Rtprio Rtprio; -struct Rtprio { - uint16 type; - uint16 prio; -}; - -typedef struct ThrParam ThrParam; -struct ThrParam { - void *start_func; - void *arg; - int8 *stack_base; - uint32 stack_size; - int8 *tls_base; - uint32 tls_size; - int32 *child_tid; - int32 *parent_tid; - int32 flags; - Rtprio *rtp; - void* spare[3]; -}; - -typedef struct Sigaltstack Sigaltstack; -struct Sigaltstack { - int8 *ss_sp; - uint32 ss_size; - int32 ss_flags; -}; - -typedef struct Sigset Sigset; -struct Sigset { - uint32 __bits[4]; -}; - -typedef union Sigval Sigval; -union Sigval { - int32 sival_int; - void *sival_ptr; - int32 sigval_int; - void *sigval_ptr; -}; - -typedef struct StackT StackT; -struct StackT { - int8 *ss_sp; - uint32 ss_size; - int32 ss_flags; -}; - -typedef struct Siginfo Siginfo; -struct Siginfo { - int32 si_signo; - int32 si_errno; - int32 si_code; - int32 si_pid; - uint32 si_uid; - int32 si_status; - void *si_addr; - Sigval si_value; - byte _reason[32]; -}; - -typedef struct Mcontext Mcontext; -struct Mcontext { - int32 mc_onstack; - int32 mc_gs; - int32 mc_fs; - int32 mc_es; - int32 mc_ds; - int32 mc_edi; - int32 mc_esi; - int32 mc_ebp; - int32 mc_isp; - int32 mc_ebx; - int32 mc_edx; - int32 mc_ecx; - int32 mc_eax; - int32 mc_trapno; - int32 mc_err; - int32 mc_eip; - int32 mc_cs; - int32 mc_eflags; - int32 mc_esp; - int32 mc_ss; - int32 mc_len; - int32 mc_fpformat; - int32 mc_ownedfp; - int32 mc_spare1[1]; - int32 mc_fpstate[128]; - int32 mc_fsbase; - int32 mc_gsbase; - int32 mc_spare2[6]; -}; - -typedef struct Ucontext Ucontext; -struct Ucontext { - Sigset uc_sigmask; - Mcontext uc_mcontext; - Ucontext *uc_link; - StackT uc_stack; - int32 uc_flags; - int32 __spare__[4]; - byte pad_godefs_0[12]; -}; - -typedef struct Timeval Timeval; -struct Timeval { - int32 tv_sec; - int32 tv_usec; -}; - -typedef struct Itimerval Itimerval; -struct Itimerval { - Timeval it_interval; - Timeval it_value; -}; -#pragma pack off diff --git a/src/pkg/runtime/freebsd/386/rt0.s b/src/pkg/runtime/freebsd/386/rt0.s deleted file mode 100644 index 3ca981b3a..000000000 --- a/src/pkg/runtime/freebsd/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_freebsd(SB),7,$0 - JMP _rt0_386(SB) - diff --git a/src/pkg/runtime/freebsd/386/signal.c b/src/pkg/runtime/freebsd/386/signal.c deleted file mode 100644 index 3600f0762..000000000 --- a/src/pkg/runtime/freebsd/386/signal.c +++ /dev/null @@ -1,191 +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" - -extern void runtime·sigtramp(void); - -typedef struct sigaction { - union { - void (*__sa_handler)(int32); - void (*__sa_sigaction)(int32, Siginfo*, void *); - } __sigaction_u; /* signal handler */ - int32 sa_flags; /* see signal options below */ - int64 sa_mask; /* signal mask to apply */ -} Sigaction; - -void -runtime·dumpregs(Mcontext *r) -{ - runtime·printf("eax %x\n", r->mc_eax); - runtime·printf("ebx %x\n", r->mc_ebx); - runtime·printf("ecx %x\n", r->mc_ecx); - runtime·printf("edx %x\n", r->mc_edx); - runtime·printf("edi %x\n", r->mc_edi); - runtime·printf("esi %x\n", r->mc_esi); - runtime·printf("ebp %x\n", r->mc_ebp); - runtime·printf("esp %x\n", r->mc_esp); - runtime·printf("eip %x\n", r->mc_eip); - runtime·printf("eflags %x\n", r->mc_eflags); - runtime·printf("cs %x\n", r->mc_cs); - runtime·printf("fs %x\n", r->mc_fs); - runtime·printf("gs %x\n", r->mc_gs); -} - -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 *r; - uintptr *sp; - - uc = context; - r = &uc->uc_mcontext; - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)r->mc_eip, (uint8*)r->mc_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->si_addr; - gp->sigpc = r->mc_eip; - - // Only push runtime·sigpanic if r->mc_eip != 0. - // If r->mc_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->mc_eip != 0) { - sp = (uintptr*)r->mc_esp; - *--sp = r->mc_eip; - r->mc_esp = (uintptr)sp; - } - r->mc_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->mc_eip); - runtime·printf("\n"); - - if(runtime·gotraceback()){ - runtime·traceback((void*)r->mc_eip, (void*)r->mc_esp, 0, gp); - runtime·tracebackothers(gp); - runtime·dumpregs(r); - } - - runtime·exit(2); -} - -void -runtime·sigignore(void) -{ -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = (int8*)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_SIGINFO|SA_ONSTACK; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask = ~0ULL; - if (fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa.__sigaction_u.__sa_sigaction = (void*)fn; - runtime·sigaction(i, &sa, nil); -} - -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/freebsd/386/sys.s b/src/pkg/runtime/freebsd/386/sys.s deleted file mode 100644 index 765e2fcc4..000000000 --- a/src/pkg/runtime/freebsd/386/sys.s +++ /dev/null @@ -1,239 +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, FreeBSD -// /usr/src/sys/kern/syscalls.master for syscall numbers. -// - -#include "386/asm.h" - -TEXT runtime·sys_umtx_op(SB),7,$-4 - MOVL $454, AX - INT $0x80 - RET - -TEXT runtime·thr_new(SB),7,$-4 - MOVL $455, AX - INT $0x80 - RET - -TEXT runtime·thr_start(SB),7,$0 - MOVL mm+0(FP), AX - MOVL m_g0(AX), BX - LEAL m_tls(AX), BP - MOVL 0(BP), DI - ADDL $7, DI - PUSHAL - PUSHL $32 - PUSHL BP - PUSHL DI - CALL runtime·setldt(SB) - POPL AX - POPL AX - POPL AX - POPAL - get_tls(CX) - MOVL BX, g(CX) - - MOVL AX, m(CX) - CALL runtime·stackcheck(SB) // smashes AX - CALL runtime·mstart(SB) - MOVL 0, AX // crash (not reached) - -// Exit the entire program (like C exit) -TEXT runtime·exit(SB),7,$-4 - MOVL $1, AX - INT $0x80 - CALL runtime·notok(SB) - RET - -TEXT runtime·exit1(SB),7,$-4 - MOVL $431, AX - INT $0x80 - JAE 2(PC) - CALL runtime·notok(SB) - RET - -TEXT runtime·write(SB),7,$-4 - MOVL $4, AX - INT $0x80 - RET - -TEXT runtime·raisesigpipe(SB),7,$12 - // thr_self(&8(SP)) - LEAL 8(SP), AX - MOVL AX, 0(SP) - MOVL $432, AX - INT $0x80 - // thr_kill(self, SIGPIPE) - MOVL 8(SP), AX - MOVL AX, 0(SP) - MOVL $13, 4(SP) - MOVL $433, AX - INT $0x80 - RET - -TEXT runtime·notok(SB),7,$0 - MOVL $0xf1, 0xf1 - RET - -TEXT runtime·mmap(SB),7,$32 - LEAL arg0+0(FP), SI - LEAL 4(SP), DI - CLD - MOVSL - MOVSL - MOVSL - MOVSL - MOVSL - MOVSL - MOVL $0, AX // top 64 bits of file offset - STOSL - MOVL $477, AX - INT $0x80 - RET - -TEXT runtime·munmap(SB),7,$-4 - MOVL $73, AX - INT $0x80 - JAE 2(PC) - CALL runtime·notok(SB) - RET - -TEXT runtime·setitimer(SB), 7, $-4 - MOVL $83, AX - INT $0x80 - RET - -TEXT runtime·gettime(SB), 7, $32 - MOVL $116, AX - LEAL 12(SP), BX - MOVL BX, 4(SP) - MOVL $0, 8(SP) - INT $0x80 - - MOVL 12(SP), BX // sec - MOVL sec+0(FP), DI - MOVL BX, (DI) - MOVL $0, 4(DI) // zero extend 32 -> 64 bits - - MOVL 16(SP), BX // usec - MOVL usec+4(FP), DI - MOVL BX, (DI) - RET - -TEXT runtime·sigaction(SB),7,$-4 - MOVL $416, AX - INT $0x80 - JAE 2(PC) - CALL runtime·notok(SB) - 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 signo+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) - - // call sigreturn - MOVL context+8(FP), AX - MOVL $0, 0(SP) // syscall gap - MOVL AX, 4(SP) - MOVL $417, AX // sigreturn(ucontext) - INT $0x80 - CALL runtime·notok(SB) - RET - -TEXT runtime·sigaltstack(SB),7,$0 - MOVL $53, AX - INT $0x80 - JAE 2(PC) - CALL runtime·notok(SB) - RET - -/* -descriptor entry format for system call -is the native machine format, ugly as it is: - - 2-byte limit - 3-byte base - 1-byte: 0x80=present, 0x60=dpl<<5, 0x1F=type - 1-byte: 0x80=limit is *4k, 0x40=32-bit operand size, - 0x0F=4 more bits of limit - 1 byte: 8 more bits of base - -int i386_get_ldt(int, union ldt_entry *, int); -int i386_set_ldt(int, const union ldt_entry *, int); - -*/ - -// setldt(int entry, int address, int limit) -TEXT runtime·setldt(SB),7,$32 - MOVL address+4(FP), BX // aka base - // see comment in linux/386/sys.s; freebsd is similar - ADDL $0x8, BX - - // set up data_desc - LEAL 16(SP), AX // struct data_desc - MOVL $0, 0(AX) - MOVL $0, 4(AX) - - MOVW BX, 2(AX) - SHRL $16, BX - MOVB BX, 4(AX) - SHRL $8, BX - MOVB BX, 7(AX) - - MOVW $0xffff, 0(AX) - MOVB $0xCF, 6(AX) // 32-bit operand, 4k limit unit, 4 more bits of limit - - MOVB $0xF2, 5(AX) // r/w data descriptor, dpl=3, present - - // call i386_set_ldt(entry, desc, 1) - MOVL $0xffffffff, 0(SP) // auto-allocate entry and return in AX - MOVL AX, 4(SP) - MOVL $1, 8(SP) - CALL runtime·i386_set_ldt(SB) - - // compute segment selector - (entry*8+7) - SHLL $3, AX - ADDL $7, AX - MOVW AX, GS - RET - -TEXT runtime·i386_set_ldt(SB),7,$16 - LEAL args+0(FP), AX // 0(FP) == 4(SP) before SP got moved - MOVL $0, 0(SP) // syscall gap - MOVL $1, 4(SP) - MOVL AX, 8(SP) - MOVL $165, AX - INT $0x80 - CMPL AX, $0xfffff001 - JLS 2(PC) - INT $3 - RET - -GLOBL runtime·tlsoffset(SB),$4 diff --git a/src/pkg/runtime/freebsd/amd64/defs.h b/src/pkg/runtime/freebsd/amd64/defs.h deleted file mode 100644 index b101b1932..000000000 --- a/src/pkg/runtime/freebsd/amd64/defs.h +++ /dev/null @@ -1,198 +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 = 0x1000, - MAP_PRIVATE = 0x2, - MAP_FIXED = 0x10, - SA_SIGINFO = 0x40, - SA_RESTART = 0x2, - SA_ONSTACK = 0x1, - UMTX_OP_WAIT = 0x2, - UMTX_OP_WAKE = 0x3, - EINTR = 0x4, - SIGHUP = 0x1, - SIGINT = 0x2, - SIGQUIT = 0x3, - SIGILL = 0x4, - SIGTRAP = 0x5, - SIGABRT = 0x6, - SIGEMT = 0x7, - SIGFPE = 0x8, - SIGKILL = 0x9, - SIGBUS = 0xa, - SIGSEGV = 0xb, - SIGSYS = 0xc, - SIGPIPE = 0xd, - SIGALRM = 0xe, - SIGTERM = 0xf, - SIGURG = 0x10, - SIGSTOP = 0x11, - SIGTSTP = 0x12, - SIGCONT = 0x13, - SIGCHLD = 0x14, - SIGTTIN = 0x15, - SIGTTOU = 0x16, - SIGIO = 0x17, - SIGXCPU = 0x18, - SIGXFSZ = 0x19, - SIGVTALRM = 0x1a, - SIGPROF = 0x1b, - SIGWINCH = 0x1c, - SIGINFO = 0x1d, - SIGUSR1 = 0x1e, - SIGUSR2 = 0x1f, - FPE_INTDIV = 0x2, - FPE_INTOVF = 0x1, - 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 Rtprio Rtprio; -struct Rtprio { - uint16 type; - uint16 prio; -}; - -typedef struct ThrParam ThrParam; -struct ThrParam { - void *start_func; - void *arg; - int8 *stack_base; - uint64 stack_size; - int8 *tls_base; - uint64 tls_size; - int64 *child_tid; - int64 *parent_tid; - int32 flags; - byte pad_godefs_0[4]; - Rtprio *rtp; - void* spare[3]; -}; - -typedef struct Sigaltstack Sigaltstack; -struct Sigaltstack { - int8 *ss_sp; - uint64 ss_size; - int32 ss_flags; - byte pad_godefs_0[4]; -}; - -typedef struct Sigset Sigset; -struct Sigset { - uint32 __bits[4]; -}; - -typedef union Sigval Sigval; -union Sigval { - int32 sival_int; - void *sival_ptr; - int32 sigval_int; - void *sigval_ptr; -}; - -typedef struct StackT StackT; -struct StackT { - int8 *ss_sp; - uint64 ss_size; - int32 ss_flags; - byte pad_godefs_0[4]; -}; - -typedef struct Siginfo Siginfo; -struct Siginfo { - int32 si_signo; - int32 si_errno; - int32 si_code; - int32 si_pid; - uint32 si_uid; - int32 si_status; - void *si_addr; - Sigval si_value; - byte _reason[40]; -}; - -typedef struct Mcontext Mcontext; -struct Mcontext { - int64 mc_onstack; - int64 mc_rdi; - int64 mc_rsi; - int64 mc_rdx; - int64 mc_rcx; - int64 mc_r8; - int64 mc_r9; - int64 mc_rax; - int64 mc_rbx; - int64 mc_rbp; - int64 mc_r10; - int64 mc_r11; - int64 mc_r12; - int64 mc_r13; - int64 mc_r14; - int64 mc_r15; - uint32 mc_trapno; - uint16 mc_fs; - uint16 mc_gs; - int64 mc_addr; - uint32 mc_flags; - uint16 mc_es; - uint16 mc_ds; - int64 mc_err; - int64 mc_rip; - int64 mc_cs; - int64 mc_rflags; - int64 mc_rsp; - int64 mc_ss; - int64 mc_len; - int64 mc_fpformat; - int64 mc_ownedfp; - int64 mc_fpstate[64]; - int64 mc_fsbase; - int64 mc_gsbase; - int64 mc_spare[6]; -}; - -typedef struct Ucontext Ucontext; -struct Ucontext { - Sigset uc_sigmask; - Mcontext uc_mcontext; - Ucontext *uc_link; - StackT uc_stack; - int32 uc_flags; - int32 __spare__[4]; - byte pad_godefs_0[12]; -}; - -typedef struct Timeval Timeval; -struct Timeval { - int64 tv_sec; - int64 tv_usec; -}; - -typedef struct Itimerval Itimerval; -struct Itimerval { - Timeval it_interval; - Timeval it_value; -}; -#pragma pack off diff --git a/src/pkg/runtime/freebsd/amd64/rt0.s b/src/pkg/runtime/freebsd/amd64/rt0.s deleted file mode 100644 index 5d2eeeeff..000000000 --- a/src/pkg/runtime/freebsd/amd64/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_amd64_freebsd(SB),7,$-8 - MOVQ $_rt0_amd64(SB), DX - JMP DX diff --git a/src/pkg/runtime/freebsd/amd64/signal.c b/src/pkg/runtime/freebsd/amd64/signal.c deleted file mode 100644 index 85cb1d855..000000000 --- a/src/pkg/runtime/freebsd/amd64/signal.c +++ /dev/null @@ -1,199 +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" - -extern void runtime·sigtramp(void); - -typedef struct sigaction { - union { - void (*__sa_handler)(int32); - void (*__sa_sigaction)(int32, Siginfo*, void *); - } __sigaction_u; /* signal handler */ - int32 sa_flags; /* see signal options below */ - int64 sa_mask; /* signal mask to apply */ -} Sigaction; - -void -runtime·dumpregs(Mcontext *r) -{ - runtime·printf("rax %X\n", r->mc_rax); - runtime·printf("rbx %X\n", r->mc_rbx); - runtime·printf("rcx %X\n", r->mc_rcx); - runtime·printf("rdx %X\n", r->mc_rdx); - runtime·printf("rdi %X\n", r->mc_rdi); - runtime·printf("rsi %X\n", r->mc_rsi); - runtime·printf("rbp %X\n", r->mc_rbp); - runtime·printf("rsp %X\n", r->mc_rsp); - runtime·printf("r8 %X\n", r->mc_r8 ); - runtime·printf("r9 %X\n", r->mc_r9 ); - runtime·printf("r10 %X\n", r->mc_r10); - runtime·printf("r11 %X\n", r->mc_r11); - runtime·printf("r12 %X\n", r->mc_r12); - runtime·printf("r13 %X\n", r->mc_r13); - runtime·printf("r14 %X\n", r->mc_r14); - runtime·printf("r15 %X\n", r->mc_r15); - runtime·printf("rip %X\n", r->mc_rip); - runtime·printf("rflags %X\n", r->mc_flags); - runtime·printf("cs %X\n", r->mc_cs); - runtime·printf("fs %X\n", r->mc_fs); - runtime·printf("gs %X\n", r->mc_gs); -} - -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 *r; - uintptr *sp; - - uc = context; - r = &uc->uc_mcontext; - - if(sig == SIGPROF) { - runtime·sigprof((uint8*)r->mc_rip, (uint8*)r->mc_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->si_addr; - gp->sigpc = r->mc_rip; - - // Only push runtime·sigpanic if r->mc_rip != 0. - // If r->mc_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->mc_rip != 0) { - sp = (uintptr*)r->mc_rsp; - *--sp = r->mc_rip; - r->mc_rsp = (uintptr)sp; - } - r->mc_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->mc_rip); - runtime·printf("\n"); - - if(runtime·gotraceback()){ - runtime·traceback((void*)r->mc_rip, (void*)r->mc_rsp, 0, gp); - runtime·tracebackothers(gp); - runtime·dumpregs(r); - } - - runtime·exit(2); -} - -void -runtime·sigignore(void) -{ -} - -void -runtime·signalstack(byte *p, int32 n) -{ - Sigaltstack st; - - st.ss_sp = (int8*)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_SIGINFO|SA_ONSTACK; - if(restart) - sa.sa_flags |= SA_RESTART; - sa.sa_mask = ~0ULL; - if (fn == runtime·sighandler) - fn = (void*)runtime·sigtramp; - sa.__sigaction_u.__sa_sigaction = (void*)fn; - runtime·sigaction(i, &sa, nil); -} - -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/freebsd/amd64/sys.s b/src/pkg/runtime/freebsd/amd64/sys.s deleted file mode 100644 index c5cc082e4..000000000 --- a/src/pkg/runtime/freebsd/amd64/sys.s +++ /dev/null @@ -1,182 +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, FreeBSD -// /usr/src/sys/kern/syscalls.master for syscall numbers. -// - -#include "amd64/asm.h" - -TEXT runtime·sys_umtx_op(SB),7,$0 - MOVQ 8(SP), DI - MOVL 16(SP), SI - MOVL 20(SP), DX - MOVQ 24(SP), R10 - MOVQ 32(SP), R8 - MOVL $454, AX - SYSCALL - RET - -TEXT runtime·thr_new(SB),7,$0 - MOVQ 8(SP), DI - MOVQ 16(SP), SI - MOVL $455, AX - SYSCALL - RET - -TEXT runtime·thr_start(SB),7,$0 - MOVQ DI, R13 // m - - // set up FS to point at m->tls - LEAQ m_tls(R13), DI - CALL runtime·settls(SB) // smashes DI - - // set up m, g - get_tls(CX) - MOVQ R13, m(CX) - MOVQ m_g0(R13), DI - MOVQ DI, g(CX) - - CALL runtime·stackcheck(SB) - CALL runtime·mstart(SB) - MOVQ 0, AX // crash (not reached) - -// Exit the entire program (like C exit) -TEXT runtime·exit(SB),7,$-8 - MOVL 8(SP), DI // arg 1 exit status - MOVL $1, AX - SYSCALL - CALL runtime·notok(SB) - RET - -TEXT runtime·exit1(SB),7,$-8 - MOVQ 8(SP), DI // arg 1 exit status - MOVL $431, AX - SYSCALL - CALL runtime·notok(SB) - RET - -TEXT runtime·write(SB),7,$-8 - MOVL 8(SP), DI // arg 1 fd - MOVQ 16(SP), SI // arg 2 buf - MOVL 24(SP), DX // arg 3 count - MOVL $4, AX - SYSCALL - RET - -TEXT runtime·raisesigpipe(SB),7,$16 - // thr_self(&8(SP)) - LEAQ 8(SP), DI // arg 1 &8(SP) - MOVL $432, AX - SYSCALL - // thr_kill(self, SIGPIPE) - MOVQ 8(SP), DI // arg 1 id - MOVQ $13, SI // arg 2 SIGPIPE - MOVL $433, AX - SYSCALL - RET - -TEXT runtime·setitimer(SB), 7, $-8 - MOVL 8(SP), DI - MOVQ 16(SP), SI - MOVQ 24(SP), DX - MOVL $83, AX - SYSCALL - RET - -TEXT runtime·gettime(SB), 7, $32 - MOVL $116, AX - LEAQ 8(SP), DI - MOVQ $0, SI - SYSCALL - - MOVQ 8(SP), BX // sec - MOVQ sec+0(FP), DI - MOVQ BX, (DI) - - MOVL 16(SP), BX // usec - MOVQ usec+8(FP), DI - MOVL BX, (DI) - RET - -TEXT runtime·sigaction(SB),7,$-8 - MOVL 8(SP), DI // arg 1 sig - MOVQ 16(SP), SI // arg 2 act - MOVQ 24(SP), DX // arg 3 oact - MOVL $416, AX - SYSCALL - JCC 2(PC) - CALL runtime·notok(SB) - RET - -TEXT runtime·sigtramp(SB),7,$64 - get_tls(BX) - - // save g - MOVQ g(BX), R10 - MOVQ R10, 40(SP) - - // g = m->signal - 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·mmap(SB),7,$0 - MOVQ 8(SP), DI // arg 1 addr - MOVQ 16(SP), SI // arg 2 len - MOVL 24(SP), DX // arg 3 prot - MOVL 28(SP), R10 // arg 4 flags - MOVL 32(SP), R8 // arg 5 fid - MOVL 36(SP), R9 // arg 6 offset - MOVL $477, AX - SYSCALL - RET - -TEXT runtime·munmap(SB),7,$0 - MOVQ 8(SP), DI // arg 1 addr - MOVQ 16(SP), SI // arg 2 len - MOVL $73, AX - SYSCALL - JCC 2(PC) - CALL runtime·notok(SB) - RET - -TEXT runtime·notok(SB),7,$-8 - MOVL $0xf1, BP - MOVQ BP, (BP) - RET - -TEXT runtime·sigaltstack(SB),7,$-8 - MOVQ new+8(SP), DI - MOVQ old+16(SP), SI - MOVQ $53, AX - SYSCALL - JCC 2(PC) - CALL runtime·notok(SB) - RET - -// set tls base to DI -TEXT runtime·settls(SB),7,$8 - ADDQ $16, DI // adjust for ELF: wants to use -16(FS) and -8(FS) for g and m - MOVQ DI, 0(SP) - MOVQ SP, SI - MOVQ $129, DI // AMD64_SET_FSBASE - MOVQ $165, AX // sysarch - SYSCALL - JCC 2(PC) - CALL runtime·notok(SB) - RET diff --git a/src/pkg/runtime/freebsd/defs.c b/src/pkg/runtime/freebsd/defs.c deleted file mode 100644 index 2ce4fdc51..000000000 --- a/src/pkg/runtime/freebsd/defs.c +++ /dev/null @@ -1,108 +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 -m32 defs.c >386/defs.h - */ - -#include <sys/types.h> -#include <sys/time.h> -#include <signal.h> -#include <errno.h> -#include <sys/mman.h> -#include <sys/ucontext.h> -#include <sys/umtx.h> -#include <sys/rtprio.h> -#include <sys/thr.h> -#include <sys/_sigset.h> -#include <sys/unistd.h> - -enum { - $PROT_NONE = PROT_NONE, - $PROT_READ = PROT_READ, - $PROT_WRITE = PROT_WRITE, - $PROT_EXEC = PROT_EXEC, - - $MAP_ANON = MAP_ANON, - $MAP_PRIVATE = MAP_PRIVATE, - $MAP_FIXED = MAP_FIXED, - - $SA_SIGINFO = SA_SIGINFO, - $SA_RESTART = SA_RESTART, - $SA_ONSTACK = SA_ONSTACK, - - $UMTX_OP_WAIT = UMTX_OP_WAIT, - $UMTX_OP_WAKE = UMTX_OP_WAKE, - - $EINTR = EINTR, - - $SIGHUP = SIGHUP, - $SIGINT = SIGINT, - $SIGQUIT = SIGQUIT, - $SIGILL = SIGILL, - $SIGTRAP = SIGTRAP, - $SIGABRT = SIGABRT, - $SIGEMT = SIGEMT, - $SIGFPE = SIGFPE, - $SIGKILL = SIGKILL, - $SIGBUS = SIGBUS, - $SIGSEGV = SIGSEGV, - $SIGSYS = SIGSYS, - $SIGPIPE = SIGPIPE, - $SIGALRM = SIGALRM, - $SIGTERM = SIGTERM, - $SIGURG = SIGURG, - $SIGSTOP = SIGSTOP, - $SIGTSTP = SIGTSTP, - $SIGCONT = SIGCONT, - $SIGCHLD = SIGCHLD, - $SIGTTIN = SIGTTIN, - $SIGTTOU = SIGTTOU, - $SIGIO = SIGIO, - $SIGXCPU = SIGXCPU, - $SIGXFSZ = SIGXFSZ, - $SIGVTALRM = SIGVTALRM, - $SIGPROF = SIGPROF, - $SIGWINCH = SIGWINCH, - $SIGINFO = SIGINFO, - $SIGUSR1 = SIGUSR1, - $SIGUSR2 = SIGUSR2, - - $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 rtprio $Rtprio; -typedef struct thr_param $ThrParam; -typedef struct sigaltstack $Sigaltstack; -typedef struct __sigset $Sigset; -typedef union sigval $Sigval; -typedef stack_t $StackT; - -typedef siginfo_t $Siginfo; - -typedef mcontext_t $Mcontext; -typedef ucontext_t $Ucontext; -typedef struct timeval $Timeval; -typedef struct itimerval $Itimerval; diff --git a/src/pkg/runtime/freebsd/mem.c b/src/pkg/runtime/freebsd/mem.c deleted file mode 100644 index 07abf2cfe..000000000 --- a/src/pkg/runtime/freebsd/mem.c +++ /dev/null @@ -1,74 +0,0 @@ -#include "runtime.h" -#include "defs.h" -#include "os.h" -#include "malloc.h" - -void* -runtime·SysAlloc(uintptr n) -{ - void *v; - - mstats.sys += n; - v = runtime·mmap(nil, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); - if(v < (void*)4096) - return nil; - return v; -} - -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) -{ - // 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; - - return runtime·mmap(v, n, PROT_NONE, MAP_ANON|MAP_PRIVATE, -1, 0); -} - -enum -{ - ENOMEM = 12, -}; - -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 == (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/freebsd/os.h b/src/pkg/runtime/freebsd/os.h deleted file mode 100644 index 007856c6b..000000000 --- a/src/pkg/runtime/freebsd/os.h +++ /dev/null @@ -1,12 +0,0 @@ -#define SIG_DFL ((void*)0) -#define SIG_IGN ((void*)1) - -int32 runtime·thr_new(ThrParam*, int32); -void runtime·sigpanic(void); -void runtime·sigaltstack(Sigaltstack*, Sigaltstack*); -struct sigaction; -void runtime·sigaction(int32, struct sigaction*, struct sigaction*); -void runtiem·setitimerval(int32, Itimerval*, Itimerval*); -void runtime·setitimer(int32, Itimerval*, Itimerval*); - -void runtime·raisesigpipe(void); diff --git a/src/pkg/runtime/freebsd/signals.h b/src/pkg/runtime/freebsd/signals.h deleted file mode 100644 index 63a84671d..000000000 --- a/src/pkg/runtime/freebsd/signals.h +++ /dev/null @@ -1,52 +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, "SIGILL: illegal instruction", - /* 5 */ C, "SIGTRAP: trace trap", - /* 6 */ C, "SIGABRT: abort", - /* 7 */ C, "SIGEMT: EMT instruction", - /* 8 */ C+P, "SIGFPE: floating-point exception", - /* 9 */ 0, "SIGKILL: kill", - /* 10 */ C+P, "SIGBUS: bus error", - /* 11 */ C+P, "SIGSEGV: segmentation violation", - /* 12 */ C, "SIGSYS: bad system call", - /* 13 */ I, "SIGPIPE: write to broken pipe", - /* 14 */ Q+I+R, "SIGALRM: alarm clock", - /* 15 */ Q+R, "SIGTERM: termination", - /* 16 */ Q+I+R, "SIGURG: urgent condition on socket", - /* 17 */ 0, "SIGSTOP: stop, unblockable", - /* 18 */ Q+I+R, "SIGTSTP: stop from tty", - /* 19 */ 0, "SIGCONT: continue", - /* 20 */ Q+I+R, "SIGCHLD: child status has changed", - /* 21 */ Q+I+R, "SIGTTIN: background read from tty", - /* 22 */ Q+I+R, "SIGTTOU: background write to tty", - /* 23 */ Q+I+R, "SIGIO: i/o now possible", - /* 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, "SIGINFO: information request", - /* 30 */ Q+I+R, "SIGUSR1: user-defined signal 1", - /* 31 */ Q+I+R, "SIGUSR2: user-defined signal 2", - /* 32 */ Q+I+R, "SIGTHR: reserved", -}; -#undef C -#undef I -#undef R -#undef Q -#undef P - -#define NSIG 33 diff --git a/src/pkg/runtime/freebsd/thread.c b/src/pkg/runtime/freebsd/thread.c deleted file mode 100644 index 569098aa2..000000000 --- a/src/pkg/runtime/freebsd/thread.c +++ /dev/null @@ -1,206 +0,0 @@ -// Use of this source file 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[]; -extern int32 runtime·sys_umtx_op(uint32*, int32, uint32, void*, void*); - -// FreeBSD's umtx_op syscall is effectively the same as Linux's futex, and -// thus the code is largely similar. See linux/thread.c for comments. - -static void -umtx_wait(uint32 *addr, uint32 val) -{ - int32 ret; - - ret = runtime·sys_umtx_op(addr, UMTX_OP_WAIT, val, nil, nil); - if(ret >= 0 || ret == -EINTR) - return; - - runtime·printf("umtx_wait addr=%p val=%d ret=%d\n", addr, val, ret); - *(int32*)0x1005 = 0x1005; -} - -static void -umtx_wake(uint32 *addr) -{ - int32 ret; - - ret = runtime·sys_umtx_op(addr, UMTX_OP_WAKE, 1, nil, nil); - if(ret >= 0) - return; - - runtime·printf("umtx_wake addr=%p ret=%d\n", addr, ret); - *(int32*)0x1006 = 0x1006; -} - -// See linux/thread.c for comments about the algorithm. -static void -umtx_lock(Lock *l) -{ - uint32 v; - -again: - v = l->key; - if((v&1) == 0){ - if(runtime·cas(&l->key, v, v|1)) - return; - goto again; - } - - if(!runtime·cas(&l->key, v, v+2)) - goto again; - - umtx_wait(&l->key, v+2); - - for(;;){ - v = l->key; - if(v < 2) - runtime·throw("bad lock key"); - if(runtime·cas(&l->key, v, v-2)) - break; - } - - goto again; -} - -static void -umtx_unlock(Lock *l) -{ - uint32 v; - -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(v&~1) - umtx_wake(&l->key); -} - -void -runtime·lock(Lock *l) -{ - if(m->locks < 0) - runtime·throw("lock count"); - m->locks++; - umtx_lock(l); -} - -void -runtime·unlock(Lock *l) -{ - m->locks--; - if(m->locks < 0) - runtime·throw("lock count"); - umtx_unlock(l); -} - -void -runtime·destroylock(Lock*) -{ -} - -// Event notifications. -void -runtime·noteclear(Note *n) -{ - n->lock.key = 0; - umtx_lock(&n->lock); -} - -void -runtime·notesleep(Note *n) -{ - umtx_lock(&n->lock); - umtx_unlock(&n->lock); -} - -void -runtime·notewakeup(Note *n) -{ - umtx_unlock(&n->lock); -} - -void runtime·thr_start(void*); - -void -runtime·newosproc(M *m, G *g, void *stk, void (*fn)(void)) -{ - ThrParam param; - - USED(fn); // thr_start assumes fn == mstart - USED(g); // thr_start assumes g == m->g0 - - if(0){ - runtime·printf("newosproc stk=%p m=%p g=%p fn=%p id=%d/%d ostk=%p\n", - stk, m, g, fn, m->id, m->tls[0], &m); - } - - runtime·memclr((byte*)¶m, sizeof param); - - param.start_func = runtime·thr_start; - param.arg = m; - param.stack_base = (int8*)g->stackbase; - param.stack_size = (byte*)stk - (byte*)g->stackbase; - param.child_tid = (intptr*)&m->procid; - param.parent_tid = nil; - param.tls_base = (int8*)&m->tls[0]; - param.tls_size = sizeof m->tls; - - m->tls[0] = m->id; // so 386 asm can find it - - runtime·thr_new(¶m, sizeof param); -} - -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); - 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); -} |