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build: avoid redundant bss declarations

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Some compilers care, sadly.

R=iant, ken
CC=golang-dev
https://golang.org/cl/4931042
This commit is contained in:
Russ Cox 2011-08-23 22:39:14 -04:00
parent af18e4b9b0
commit 5e188b40f2
9 changed files with 18 additions and 30 deletions
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5
src/Make.inc
View File

@ -118,7 +118,10 @@ HOST_AR?=ar
HOST_EXTRA_CFLAGS?=-ggdb -O2
HOST_EXTRA_LDFLAGS?=
HOST_CFLAGS=-I"$(GOROOT)/include" $(HOST_EXTRA_CFLAGS)
# The -fno-common here is not necessary, but some compilers
# on OS X seem to set it by default. Setting it here keeps the build
# working in that non-standard context.
HOST_CFLAGS=-fno-common -I"$(GOROOT)/include" $(HOST_EXTRA_CFLAGS)
HOST_LDFLAGS=$(HOST_EXTRA_LDFLAGS)
PWD=$(shell pwd)

2
src/cmd/5c/gc.h
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@ -181,7 +181,7 @@ EXTERN int32 maxargsafe;
EXTERN int mnstring;
EXTERN Multab multab[20];
EXTERN int retok;
EXTERN int hintabsize;
extern int hintabsize;
EXTERN Node* nodrat;
EXTERN Node* nodret;
EXTERN Node* nodsafe;

13
src/cmd/5g/gg.h
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@ -5,13 +5,13 @@
#include <u.h>
#include <libc.h>
#ifndef EXTERN
#define EXTERN extern
#endif
#include "../gc/go.h"
#include "../5l/5.out.h"
#ifndef EXTERN
#define EXTERN extern
#endif
typedef struct Addr Addr;
struct Addr
@ -51,22 +51,19 @@ struct Prog
#define REGALLOC_F0 (REGALLOC_RMAX+1)
#define REGALLOC_FMAX (REGALLOC_F0 + FREGEXT)
EXTERN Biobuf* bout;
EXTERN int32 dynloc;
EXTERN uchar reg[REGALLOC_FMAX+1];
EXTERN int32 pcloc; // instruction counter
EXTERN Strlit emptystring;
extern char* anames[];
EXTERN Hist* hist;
EXTERN Prog zprog;
EXTERN Node* curfn;
EXTERN Node* newproc;
EXTERN Node* deferproc;
EXTERN Node* deferreturn;
EXTERN Node* panicindex;
EXTERN Node* panicslice;
EXTERN Node* throwreturn;
EXTERN long unmappedzero;
extern long unmappedzero;
EXTERN int maxstksize;
/*

1
src/cmd/5l/softfloat.c
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@ -2,7 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#define EXTERN
#include "l.h"
#include "../ld/lib.h"

13
src/cmd/6g/gg.h
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@ -5,13 +5,13 @@
#include <u.h>
#include <libc.h>
#ifndef EXTERN
#define EXTERN extern
#endif
#include "../gc/go.h"
#include "../6l/6.out.h"
#ifndef EXTERN
#define EXTERN extern
#endif
typedef struct Addr Addr;
struct Addr
@ -44,22 +44,19 @@ struct Prog
void* reg; // pointer to containing Reg struct
};
EXTERN Biobuf* bout;
EXTERN int32 dynloc;
EXTERN uchar reg[D_NONE];
EXTERN int32 pcloc; // instruction counter
EXTERN Strlit emptystring;
extern char* anames[];
EXTERN Hist* hist;
EXTERN Prog zprog;
EXTERN Node* curfn;
EXTERN Node* newproc;
EXTERN Node* deferproc;
EXTERN Node* deferreturn;
EXTERN Node* panicindex;
EXTERN Node* panicslice;
EXTERN Node* throwreturn;
EXTERN vlong unmappedzero;
extern vlong unmappedzero;
/*
* gen.c

2
src/cmd/6g/reg.c
View File

@ -29,8 +29,6 @@
// THE SOFTWARE.
#include "gg.h"
#undef EXTERN
#define EXTERN
#include "opt.h"
#define NREGVAR 32 /* 16 general + 16 floating */

9
src/cmd/8g/gg.h
View File

@ -5,13 +5,13 @@
#include <u.h>
#include <libc.h>
#include "../gc/go.h"
#include "../8l/8.out.h"
#ifndef EXTERN
#define EXTERN extern
#endif
#include "../gc/go.h"
#include "../8l/8.out.h"
typedef struct Addr Addr;
struct Addr
@ -54,15 +54,12 @@ enum
Fpop2 = 1<<2,
};
EXTERN Biobuf* bout;
EXTERN int32 dynloc;
EXTERN uchar reg[D_NONE];
EXTERN int32 pcloc; // instruction counter
EXTERN Strlit emptystring;
extern char* anames[];
EXTERN Hist* hist;
EXTERN Prog zprog;
EXTERN Node* curfn;
EXTERN Node* newproc;
EXTERN Node* deferproc;
EXTERN Node* deferreturn;

2
src/cmd/8g/reg.c
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@ -29,8 +29,6 @@
// THE SOFTWARE.
#include "gg.h"
#undef EXTERN
#define EXTERN
#include "opt.h"
#define NREGVAR 8

1
src/cmd/gc/lex.c
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@ -2,7 +2,6 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#define EXTERN
#include "go.h"
#include "y.tab.h"
#include <ar.h>