-86d223eaccecff72b44cd23a014bc028b658055e
+6fa9657df508ff4d7760cf1abfad3611ba808561
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
Bexpression* compare =
gogo->backend()->binary_expression(OPERATOR_EQEQ, tbexpr,
nil, loc);
- Bexpression* crash =
- gogo->runtime_error(RUNTIME_ERROR_NIL_DEREFERENCE,
- loc)->get_backend(context);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_MEM,
+ loc, 0);
+ Bexpression* bcrash = crash->get_backend(context);
Bfunction* bfn = context->function()->func_value()->get_decl();
bexpr = gogo->backend()->conditional_expression(bfn, btype,
compare,
- crash, ubexpr,
+ bcrash, ubexpr,
loc);
known_valid = true;
break;
Bexpression* compare =
gogo->backend()->binary_expression(OPERATOR_LT, right, zero_expr,
loc);
- const int errcode = RUNTIME_ERROR_SHIFT_BY_NEGATIVE;
- Bexpression* crash =
- gogo->runtime_error(errcode, loc)->get_backend(context);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_SHIFT,
+ loc, 0);
+ Bexpression* bcrash = crash->get_backend(context);
Bfunction* bfn = context->function()->func_value()->get_decl();
ret = gogo->backend()->conditional_expression(bfn, btype, compare,
- crash, ret, loc);
+ bcrash, ret, loc);
}
}
gogo->backend()->binary_expression(OPERATOR_EQEQ,
right, zero_expr, loc);
- // __go_runtime_error(RUNTIME_ERROR_DIVISION_BY_ZERO)
- int errcode = RUNTIME_ERROR_DIVISION_BY_ZERO;
- Bexpression* crash = gogo->runtime_error(errcode,
- loc)->get_backend(context);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_DIVIDE,
+ loc, 0);
+ Bexpression* bcrash = crash->get_backend(context);
- // right == 0 ? (__go_runtime_error(...), 0) : ret
+ // right == 0 ? (panicdivide(), 0) : ret
Bfunction* bfn = context->function()->func_value()->get_decl();
ret = gogo->backend()->conditional_expression(bfn, btype,
- check, crash,
+ check, bcrash,
ret, loc);
}
if (nil_check != NULL)
{
- Expression* crash = gogo->runtime_error(RUNTIME_ERROR_NIL_DEREFERENCE,
- loc);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_MEM, loc, 0);
// Fix the type of the conditional expression by pretending to
// evaluate to RET either way through the conditional.
crash = Expression::make_compound(crash, ret, loc);
Expression* zero = Expression::make_integer_ul(0, int_type, loc);
Expression* cond = Expression::make_binary(OPERATOR_LT, len2,
zero, loc);
- Expression* arg =
- Expression::make_integer_ul(RUNTIME_ERROR_MAKE_SLICE_LEN_OUT_OF_BOUNDS,
- NULL, loc);
- Expression* call = Runtime::make_call(Runtime::RUNTIME_ERROR,
- loc, 1, arg);
+ Expression* call = Runtime::make_call(Runtime::PANIC_MAKE_SLICE_LEN,
+ loc, 0);
cond = Expression::make_conditional(cond, call, zero->copy(), loc);
gogo->lower_expression(function, inserter, &cond);
gogo->flatten_expression(function, inserter, &cond);
Expression* cap2 = Expression::make_temporary_reference(c2tmp, loc);
cond = Expression::make_binary(OPERATOR_LT, cap2,
zero->copy(), loc);
- arg = Expression::make_integer_ul(RUNTIME_ERROR_MAKE_SLICE_CAP_OUT_OF_BOUNDS,
- NULL, loc);
- call = Runtime::make_call(Runtime::RUNTIME_ERROR, loc, 1, arg);
+ call = Runtime::make_call(Runtime::PANIC_MAKE_SLICE_CAP, loc, 0);
cond = Expression::make_conditional(cond, call, zero->copy(), loc);
gogo->lower_expression(function, inserter, &cond);
gogo->flatten_expression(function, inserter, &cond);
Expression::make_nil(loc), loc);
Bexpression* bnil_check = nil_check->get_backend(context);
- Bexpression* bcrash = gogo->runtime_error(RUNTIME_ERROR_NIL_DEREFERENCE,
- loc)->get_backend(context);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_MEM, loc, 0);
+ Bexpression* bcrash = crash->get_backend(context);
Bfunction* bfn = context->function()->func_value()->get_decl();
Bexpression* bcond =
this->traverse(&build_recover_thunks);
}
-// Build a call to the runtime error function.
-
-Expression*
-Gogo::runtime_error(int code, Location location)
-{
- Type* int32_type = Type::lookup_integer_type("int32");
- Expression* code_expr = Expression::make_integer_ul(code, int32_type,
- location);
- return Runtime::make_call(Runtime::RUNTIME_ERROR, location, 1, code_expr);
-}
-
// Look for named types to see whether we need to create an interface
// method table.
}
if (this->asm_name_ == "runtime.gopanic"
+ || this->asm_name_.compare(0, 13, "runtime.panic") == 0
|| this->asm_name_.compare(0, 15, "runtime.goPanic") == 0
- || this->asm_name_ == "__go_runtime_error"
- || this->asm_name_ == "runtime.panicdottype"
|| this->asm_name_ == "runtime.block")
flags |= Backend::function_does_not_return;
}
void
write_globals();
- // Build a call to the runtime error function.
- Expression*
- runtime_error(int code, Location);
-
// Build required interface method tables.
void
build_interface_method_tables();
bool is_const_;
};
-// Runtime error codes. These must match the values in
-// libgo/runtime/go-runtime-error.c.
-
-// Slice index out of bounds: negative or larger than the length of
-// the slice.
-static const int RUNTIME_ERROR_SLICE_INDEX_OUT_OF_BOUNDS = 0;
-
-// Array index out of bounds.
-static const int RUNTIME_ERROR_ARRAY_INDEX_OUT_OF_BOUNDS = 1;
-
-// String index out of bounds.
-static const int RUNTIME_ERROR_STRING_INDEX_OUT_OF_BOUNDS = 2;
-
-// Slice slice out of bounds: negative or larger than the length of
-// the slice or high bound less than low bound.
-static const int RUNTIME_ERROR_SLICE_SLICE_OUT_OF_BOUNDS = 3;
-
-// Array slice out of bounds.
-static const int RUNTIME_ERROR_ARRAY_SLICE_OUT_OF_BOUNDS = 4;
-
-// String slice out of bounds.
-static const int RUNTIME_ERROR_STRING_SLICE_OUT_OF_BOUNDS = 5;
-
-// Dereference of nil pointer. This is used when there is a
-// dereference of a pointer to a very large struct or array, to ensure
-// that a gigantic array is not used a proxy to access random memory
-// locations.
-static const int RUNTIME_ERROR_NIL_DEREFERENCE = 6;
-
-// Slice length out of bounds in make: negative or overflow
-// or length greater than capacity.
-static const int RUNTIME_ERROR_MAKE_SLICE_LEN_OUT_OF_BOUNDS = 7;
-
-// Slice capacity out of bounds in make: negative.
-static const int RUNTIME_ERROR_MAKE_SLICE_CAP_OUT_OF_BOUNDS = 8;
-
-// Map capacity out of bounds in make: negative or overflow.
-static const int RUNTIME_ERROR_MAKE_MAP_OUT_OF_BOUNDS = 9;
-
-// Channel capacity out of bounds in make: negative or overflow.
-static const int RUNTIME_ERROR_MAKE_CHAN_OUT_OF_BOUNDS = 10;
-
-// Division by zero.
-static const int RUNTIME_ERROR_DIVISION_BY_ZERO = 11;
-
-// Go statement with nil function.
-static const int RUNTIME_ERROR_GO_NIL = 12;
-
-// Shift by negative value.
-static const int RUNTIME_ERROR_SHIFT_BY_NEGATIVE = 13;
-
// This is used by some of the langhooks.
extern Gogo* go_get_gogo();
// Run deferred functions.
DEF_GO_RUNTIME(DEFERRETURN, "runtime.deferreturn", P1(BOOLPTR), R0())
-// Panic with a runtime error.
-DEF_GO_RUNTIME(RUNTIME_ERROR, "__go_runtime_error", P1(INT32), R0())
-
// Close.
DEF_GO_RUNTIME(CLOSE, "runtime.closechan", P1(CHAN), R0())
P3(POINTER, UINT8, INT32),
R1(UINT8))
+// Panic reporting a division by zero.
+DEF_GO_RUNTIME(PANIC_DIVIDE, "runtime.panicdivide", P0(), R0())
+
+// Panic reporting a shift by negative count.
+DEF_GO_RUNTIME(PANIC_SHIFT, "runtime.panicshift", P0(), R0())
+
+// Panic reporting a nil dereference.
+DEF_GO_RUNTIME(PANIC_MEM, "runtime.panicmem", P0(), R0())
+
+// Panic reporting that make's slice len argument is out of range.
+DEF_GO_RUNTIME(PANIC_MAKE_SLICE_LEN, "runtime.panicmakeslicelen", P0(), R0())
+
+// Panic reporting that make's slice cap argument is out of range.
+DEF_GO_RUNTIME(PANIC_MAKE_SLICE_CAP, "runtime.panicmakeslicecap", P0(), R0())
+
+// Panic reporting using go with a nil function.
+DEF_GO_RUNTIME(PANIC_GO_NIL, "runtime.panicgonil", P0(), R0())
+
// Panics reporting an index or slice out of bounds error.
DEF_GO_RUNTIME(PANIC_INDEX, "runtime.goPanicIndex",
P2(INT, INT), R0())
// nil` we get a backtrace from the go statement, rather than a
// useless backtrace from the brand new goroutine.
Expression* param = constructor;
- if (!is_constant_function)
+ if (!is_constant_function && this->classification() == STATEMENT_GO)
{
fn = Expression::make_temporary_reference(fn_temp, location);
Expression* nil = Expression::make_nil(location);
Expression* isnil = Expression::make_binary(OPERATOR_EQEQ, fn, nil,
location);
- Expression* crash = gogo->runtime_error(RUNTIME_ERROR_GO_NIL, location);
+ Expression* crash = Runtime::make_call(Runtime::PANIC_GO_NIL,
+ location, 0);
crash = Expression::make_conditional(isnil, crash,
Expression::make_nil(location),
location);
runtime/go-now.c \
runtime/go-nosys.c \
runtime/go-reflect-call.c \
- runtime/go-runtime-error.c \
runtime/go-setenv.c \
runtime/go-signal.c \
runtime/go-unsafe-pointer.c \
runtime/go-matherr.lo runtime/go-memclr.lo \
runtime/go-memequal.lo runtime/go-nanotime.lo \
runtime/go-now.lo runtime/go-nosys.lo \
- runtime/go-reflect-call.lo runtime/go-runtime-error.lo \
- runtime/go-setenv.lo runtime/go-signal.lo \
- runtime/go-unsafe-pointer.lo runtime/go-unsetenv.lo \
- runtime/go-unwind.lo runtime/go-varargs.lo \
- runtime/env_posix.lo runtime/panic.lo runtime/print.lo \
- runtime/proc.lo runtime/runtime_c.lo runtime/stack.lo \
- runtime/yield.lo $(am__objects_2) $(am__objects_3)
+ runtime/go-reflect-call.lo runtime/go-setenv.lo \
+ runtime/go-signal.lo runtime/go-unsafe-pointer.lo \
+ runtime/go-unsetenv.lo runtime/go-unwind.lo \
+ runtime/go-varargs.lo runtime/env_posix.lo runtime/panic.lo \
+ runtime/print.lo runtime/proc.lo runtime/runtime_c.lo \
+ runtime/stack.lo runtime/yield.lo $(am__objects_2) \
+ $(am__objects_3)
am_libgo_llgo_la_OBJECTS = $(am__objects_4)
libgo_llgo_la_OBJECTS = $(am_libgo_llgo_la_OBJECTS)
AM_V_lt = $(am__v_lt_@AM_V@)
runtime/go-now.c \
runtime/go-nosys.c \
runtime/go-reflect-call.c \
- runtime/go-runtime-error.c \
runtime/go-setenv.c \
runtime/go-signal.c \
runtime/go-unsafe-pointer.c \
runtime/$(DEPDIR)/$(am__dirstamp)
runtime/go-reflect-call.lo: runtime/$(am__dirstamp) \
runtime/$(DEPDIR)/$(am__dirstamp)
-runtime/go-runtime-error.lo: runtime/$(am__dirstamp) \
- runtime/$(DEPDIR)/$(am__dirstamp)
runtime/go-setenv.lo: runtime/$(am__dirstamp) \
runtime/$(DEPDIR)/$(am__dirstamp)
runtime/go-signal.lo: runtime/$(am__dirstamp) \
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-nosys.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-now.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-reflect-call.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-runtime-error.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-setenv.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-signal.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@runtime/$(DEPDIR)/go-unsafe-pointer.Plo@am__quote@
//go:linkname goPanicSlice3BU
//go:linkname goPanicSlice3C
//go:linkname goPanicSlice3CU
+//go:linkname panicshift
+//go:linkname panicdivide
//go:linkname panicmem
// Temporary for C code to call:
//go:linkname throw
execLock.unlock()
}
+// panicgonil is used for gccgo as we need to use a compiler check for
+// a nil func, in case we have to build a thunk.
+//go:linkname panicgonil
+func panicgonil() {
+ getg().m.throwing = -1 // do not dump full stacks
+ throw("go of nil func value")
+}
+
// Create a new g running fn passing arg as the single argument.
// Put it on the queue of g's waiting to run.
// The compiler turns a go statement into a call to this.
// For gccgo, use go:linkname to export compiler-called functions.
//
+//go:linkname panicmakeslicelen
+//go:linkname panicmakeslicecap
//go:linkname makeslice
//go:linkname makeslice64
//go:linkname growslice
+++ /dev/null
-/* go-runtime-error.c -- Go runtime error.
-
- Copyright 2010 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"
-
-/* The compiler generates calls to this function. This enum values
- are known to the compiler and used by compiled code. Any change
- here must be reflected in the compiler. */
-
-enum
-{
- /* Slice index out of bounds: negative or larger than the length of
- the slice. */
- SLICE_INDEX_OUT_OF_BOUNDS = 0,
-
- /* Array index out of bounds. */
- ARRAY_INDEX_OUT_OF_BOUNDS = 1,
-
- /* String index out of bounds. */
- STRING_INDEX_OUT_OF_BOUNDS = 2,
-
- /* Slice slice out of bounds: negative or larger than the length of
- the slice or high bound less than low bound. */
- SLICE_SLICE_OUT_OF_BOUNDS = 3,
-
- /* Array slice out of bounds. */
- ARRAY_SLICE_OUT_OF_BOUNDS = 4,
-
- /* String slice out of bounds. */
- STRING_SLICE_OUT_OF_BOUNDS = 5,
-
- /* Dereference of nil pointer. This is used when there is a
- dereference of a pointer to a very large struct or array, to
- ensure that a gigantic array is not used a proxy to access random
- memory locations. */
- NIL_DEREFERENCE = 6,
-
- /* Slice length out of bounds in make: negative or overflow or length
- greater than capacity. */
- MAKE_SLICE_LEN_OUT_OF_BOUNDS = 7,
-
- /* Slice capacity out of bounds in make: negative. */
- MAKE_SLICE_CAP_OUT_OF_BOUNDS = 8,
-
- /* Map capacity out of bounds in make: negative or overflow. */
- MAKE_MAP_OUT_OF_BOUNDS = 9,
-
- /* Channel capacity out of bounds in make: negative or overflow. */
- MAKE_CHAN_OUT_OF_BOUNDS = 10,
-
- /* Integer division by zero. */
- DIVISION_BY_ZERO = 11,
-
- /* Go statement with nil function. */
- GO_NIL = 12,
-
- /* Shift by negative value. */
- SHIFT_BY_NEGATIVE = 13
-};
-
-extern void __go_runtime_error (int32) __attribute__ ((noreturn));
-
-void
-__go_runtime_error (int32 i)
-{
- struct funcfileline_return fileline;
- bool in_runtime;
-
- fileline = runtime_funcfileline ((uintptr) runtime_getcallerpc()-1, 0);
- in_runtime = (fileline.retfn.len > 0
- && (__builtin_strncmp ((const char *) fileline.retfn.str,
- "runtime.", 8)
- == 0));
-
- switch (i)
- {
- case SLICE_INDEX_OUT_OF_BOUNDS:
- case ARRAY_INDEX_OUT_OF_BOUNDS:
- case STRING_INDEX_OUT_OF_BOUNDS:
- if (in_runtime)
- runtime_throw ("index out of range");
- runtime_panicstring ("index out of range");
-
- case SLICE_SLICE_OUT_OF_BOUNDS:
- case ARRAY_SLICE_OUT_OF_BOUNDS:
- case STRING_SLICE_OUT_OF_BOUNDS:
- if (in_runtime)
- runtime_throw ("slice bounds out of range");
- runtime_panicstring ("slice bounds out of range");
-
- case NIL_DEREFERENCE:
- runtime_panicstring ("nil pointer dereference");
-
- case MAKE_SLICE_LEN_OUT_OF_BOUNDS:
- runtime_panicstring ("make slice len out of range");
-
- case MAKE_SLICE_CAP_OUT_OF_BOUNDS:
- runtime_panicstring ("make slice cap out of range");
-
- case MAKE_MAP_OUT_OF_BOUNDS:
- runtime_panicstring ("make map len out of range");
-
- case MAKE_CHAN_OUT_OF_BOUNDS:
- runtime_panicstring ("make chan len out of range");
-
- case DIVISION_BY_ZERO:
- runtime_panicstring ("integer divide by zero");
-
- case GO_NIL:
- /* This one is a throw, rather than a panic. Set throwing to
- not dump full stacks. */
- runtime_g()->m->throwing = -1;
- runtime_throw ("go of nil func value");
-
- case SHIFT_BY_NEGATIVE:
- runtime_panicstring ("negative shift amount");
-
- default:
- runtime_panicstring ("unknown runtime error");
- }
-}
projects / gcc.git / commitdiff