From: "Bence Fábián" <begnoc@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Linking error with 8l, guys, could you tell
Date: Wed, 28 Nov 2012 12:43:59 +0100 [thread overview]
Message-ID: <CAOCRf5VyfrmzSeF9HNjmOMUCan9mDWpr=eTYTSv85wgXG0EFKA@mail.gmail.com> (raw)
In-Reply-To: <e46f819d-90d9-4155-ac9e-95f93ba14f54@googlegroups.com>
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This is a multiple initialization problem. Here is an example code:
#include <u.h>
#include <libc.h>
int num = 20;
int num = 30;
void
main(void)
{
print("%d\n", num);
exits(nil);
}
relevant parts:
/sys/src/cmd/8l/asm.c:424:
/sys/src/cmd/8l/pass.c:16:
2012/11/28 keystroke <zhangrui0000@gmail.com>
> Thank you for your reply, erik.
>
> But I don't quite follow you. Are you suggesting that the error has
> nothing to do with "opnames" and "etnames", but is about the following word
> "memccpy"?
>
> I had grep opnames and etnames before, and finds only one initial place.
> And I grep memccpy, no result was found.
> There is a strange situation, when I "8l subr.c" then it's "memccpy", when
> I
> "8l *.8", it shows "create":
>
> (2050) DATA ...(same as before)
> create: multiple initialization.
> ...(same as before)
> create: multiple initialization.
>
> I suspect it is opnames and etnames that cause the problem, and I find
> something
> strange in the subr.c and it's included file go.h, is it relevant?
>
> =============================================================
> > subr.c
> =============================================================
> static char*
> opnames[] =
> {
> [OADDR] = "ADDR",
> [OADD] = "ADD",
> [OANDAND] = "ANDAND",
> [OAND] = "AND",
> [OARRAY] = "ARRAY",
> [OASOP] = "ASOP",
> [OAS] = "AS",
> [OBAD] = "BAD",
> [OBREAK] = "BREAK",
> [OCALL] = "CALL",
> [OCALLPTR] = "CALLPTR",
> [OCALLMETH] = "CALLMETH",
> [OCALLINTER] = "CALLINTER",
> [OCAT] = "CAT",
> [OCASE] = "CASE",
> [OXCASE] = "XCASE",
> [OFALL] = "FALL",
> [OCONV] = "CONV",
> [OCOLAS] = "COLAS",
> [OCOM] = "COM",
> [OCONST] = "CONST",
> [OCONTINUE] = "CONTINUE",
> [ODCLARG] = "DCLARG",
> [ODCLCONST] = "DCLCONST",
> [ODCLFIELD] = "DCLFIELD",
> [ODCLFUNC] = "DCLFUNC",
> [ODCLTYPE] = "DCLTYPE",
> [ODCLVAR] = "DCLVAR",
> [ODIV] = "DIV",
> [ODOT] = "DOT",
> [ODOTPTR] = "DOTPTR",
> [ODOTMETH] = "DOTMETH",
> [ODOTINTER] = "DOTINTER",
> [OEMPTY] = "EMPTY",
> [OEND] = "END",
> [OEQ] = "EQ",
> [OFOR] = "FOR",
> [OFUNC] = "FUNC",
> [OGE] = "GE",
> [OPROC] = "PROC",
> [OGOTO] = "GOTO",
> [OGT] = "GT",
> [OIF] = "IF",
> [OINDEX] = "INDEX",
> [OINDEXPTR] = "INDEXPTR",
> [OINDEXSTR] = "INDEXSTR",
> [OINDEXMAP] = "INDEXMAP",
> [OINDEXPTRMAP] = "INDEXPTRMAP",
> [OIND] = "IND",
> [OLABEL] = "LABEL",
> [OLE] = "LE",
> [OLEN] = "LEN",
> [OLIST] = "LIST",
> [OLITERAL] = "LITERAL",
> [OLSH] = "LSH",
> [OLT] = "LT",
> [OMINUS] = "MINUS",
> [OMOD] = "MOD",
> [OMUL] = "MUL",
> [ONAME] = "NAME",
> [ONE] = "NE",
> [ONOT] = "NOT",
> [OOROR] = "OROR",
> [OOR] = "OR",
> [OPLUS] = "PLUS",
> [ODEC] = "DEC",
> [OINC] = "INC",
> [OSEND] = "SEND",
> [ORECV] = "RECV",
> [OPTR] = "PTR",
> [ORETURN] = "RETURN",
> [ORSH] = "RSH",
> [OSLICE] = "SLICE",
> [OSUB] = "SUB",
> [OSWITCH] = "SWITCH",
> [OTYPE] = "TYPE",
> [OVAR] = "VAR",
> [OEXPORT] = "EXPORT",
> [OIMPORT] = "IMPORT",
> [OXOR] = "XOR",
> [ONEW] = "NEW",
> [OFALL] = "FALL",
> [OXFALL] = "XFALL",
> [OPANIC] = "PANIC",
> [OPRINT] = "PRINT",
> [OXXX] = "XXX",
> };
>
> =============================================================
> > go.h
> =============================================================
> enum
> {
> OXXX,
>
> OTYPE, OCONST, OVAR, OEXPORT, OIMPORT,
>
> ONAME,
> ODOT, ODOTPTR, ODOTMETH, ODOTINTER,
> ODCLFUNC, ODCLCONST, ODCLVAR,
> ODCLTYPE, ODCLFIELD, ODCLARG,
> OLIST,
> OPTR, OARRAY,
> ORETURN, OFOR, OIF, OSWITCH,
> OAS, OASOP, OCOLAS, OCASE, OXCASE, OFALL, OXFALL,
> OGOTO, OPROC, ONEW, OPANIC, OPRINT, OEMPTY,
>
> OOROR,
> OANDAND,
> OEQ, ONE, OLT, OLE, OGE, OGT,
> OADD, OSUB, OOR, OXOR, OCAT,
> OMUL, ODIV, OMOD, OLSH, ORSH, OAND,
> ODEC, OINC,
> OLEN,
> OFUNC,
> OLABEL,
> OBREAK,
> OCONTINUE,
> OADDR,
> OIND,
> OCALL, OCALLPTR, OCALLMETH, OCALLINTER,
> OINDEX, OINDEXPTR, OINDEXSTR, OINDEXMAP, OINDEXPTRMAP,
> OSLICE,
> ONOT, OCOM, OPLUS, OMINUS, OSEND, ORECV,
> OLITERAL,
> OCONV,
> OBAD,
>
> OEND,
> };
>
>
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next prev parent reply other threads:[~2012-11-28 11:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-26 9:49 [9fans] Linking error with 8l, guys, could you tell me where to look? keystroke
2012-11-26 13:25 ` erik quanstrom
2012-11-28 10:20 ` [9fans] Linking error with 8l, guys, could you tell keystroke
2012-11-28 11:43 ` Bence Fábián [this message]
2012-11-28 11:51 ` lucio
2012-11-28 12:12 ` Bence Fábián
2012-11-28 12:22 ` Bence Fábián
2012-11-28 12:48 ` erik quanstrom
2012-11-29 9:48 keystroke
2012-11-29 9:48 keystroke
2012-11-29 9:48 keystroke
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