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[568]a: precise linenumbers for statements.

Browse Source 
R=rsc, ken2, r, rsc1
CC=golang-dev
https://golang.org/cl/2297042
This commit is contained in:
Luuk van Dijk 2010-10-07 11:13:06 +02:00
parent cc5c2ee0ec
commit 2ad521c19a
10 changed files with 54 additions and 34 deletions
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1
src/cmd/5a/a.h
View File

@ -148,6 +148,7 @@ EXTERN int pass;
EXTERN char* pathname;
EXTERN int32 pc;
EXTERN int peekc;
EXTERN int32 stmtline;
EXTERN int sym;
EXTERN char* symb;
EXTERN int thechar;

6
src/cmd/5a/a.y
View File

@ -63,7 +63,11 @@
%type <gen> imm ximm name oreg ireg nireg ioreg imsr
%%
prog:
| prog line
| prog
{
stmtline = lineno;
}
line
line:
LLAB ':'

8
src/cmd/5a/lex.c
View File

@ -658,10 +658,10 @@ jackpot:
Bputc(&obuf, a);
Bputc(&obuf, scond);
Bputc(&obuf, reg);
Bputc(&obuf, lineno);
Bputc(&obuf, lineno>>8);
Bputc(&obuf, lineno>>16);
Bputc(&obuf, lineno>>24);
Bputc(&obuf, stmtline);
Bputc(&obuf, stmtline>>8);
Bputc(&obuf, stmtline>>16);
Bputc(&obuf, stmtline>>24);
zaddr(g1, sf);
zaddr(g2, st);

1
src/cmd/6a/a.h
View File

@ -161,6 +161,7 @@ EXTERN int pass;
EXTERN char* pathname;
EXTERN int32 pc;
EXTERN int peekc;
EXTERN int32 stmtline;
EXTERN int sym;
EXTERN char* symb;
EXTERN int thechar;

6
src/cmd/6a/a.y
View File

@ -60,7 +60,11 @@
%type <gen2> spec1 spec2 spec3 spec4 spec5 spec6 spec7 spec8 spec9
%%
prog:
| prog line
| prog
{
stmtline = lineno;
}
line
line:
LLAB ':'

8
src/cmd/6a/lex.c
View File

@ -1260,10 +1260,10 @@ jackpot:
}
Bputc(&obuf, a);
Bputc(&obuf, a>>8);
Bputc(&obuf, lineno);
Bputc(&obuf, lineno>>8);
Bputc(&obuf, lineno>>16);
Bputc(&obuf, lineno>>24);
Bputc(&obuf, stmtline);
Bputc(&obuf, stmtline>>8);
Bputc(&obuf, stmtline>>16);
Bputc(&obuf, stmtline>>24);
zaddr(&g2->from, sf);
zaddr(&g2->to, st);

1
src/cmd/8a/a.h
View File

@ -162,6 +162,7 @@ EXTERN int pass;
EXTERN char* pathname;
EXTERN int32 pc;
EXTERN int peekc;
EXTERN int32 stmtline;
EXTERN int sym;
EXTERN char* symb;
EXTERN int thechar;

6
src/cmd/8a/a.y
View File

@ -64,7 +64,11 @@
%type <gen2> spec1 spec2 spec3 spec4 spec5 spec6 spec7 spec8
%%
prog:
| prog line
| prog
{
stmtline = lineno;
}
line
line:
LLAB ':'

8
src/cmd/8a/lex.c
View File

@ -925,10 +925,10 @@ jackpot:
}
Bputc(&obuf, a);
Bputc(&obuf, a>>8);
Bputc(&obuf, lineno);
Bputc(&obuf, lineno>>8);
Bputc(&obuf, lineno>>16);
Bputc(&obuf, lineno>>24);
Bputc(&obuf, stmtline);
Bputc(&obuf, stmtline>>8);
Bputc(&obuf, stmtline>>16);
Bputc(&obuf, stmtline>>24);
zaddr(&g2->from, sf);
zaddr(&g2->to, st);

9
src/cmd/ld/dwarf.c
View File

@ -436,7 +436,7 @@ decodez(char *s)
* The line history itself
*/
static char **histfile; // [0] holds the empty string.
static char **histfile; // [0] holds "<eof>", DW_LNS_set_file arguments must be > 0.
static int histfilesize;
static int histfilecap;
@ -445,7 +445,7 @@ clearhistfile(void)
{
int i;
// [0] holds the empty string.
// [0] holds "<eof>"
for (i = 1; i < histfilesize; i++)
free(histfile[i]);
histfilesize = 0;
@ -762,6 +762,11 @@ writelines(void)
diag("corrupt history or bad absolute line: %P", q);
continue;
}
if (lh->file < 1) { // 0 is the past-EOF entry.
diag("instruction with linenumber past EOF in %s: %P", unitname, q);
continue;
}
lline = lh->line + q->line - lh->absline;
if (debug['v'] > 1)
print("%6llux %s[%lld] %P\n", q->pc, histfile[lh->file], lline, q);