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ld: change DWARF output for structs

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The debug/dwarf package cannot parse the format generated here,
but the format can be changed so it does.
After this edit, tweaking the expression defining the offset
of a struct field, the dwarf package can parse the tables (again?).

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/105710043
This commit is contained in:
Rob Pike 2014-07-11 15:16:00 +00:00
parent 5c2f01f392
commit 125d1e9269
1 changed files with 2 additions and 5 deletions
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7
src/cmd/ld/dwarf.c
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@ -835,11 +835,8 @@ newmemberoffsetattr(DWDie *die, int32 offs)
int i;
i = 0;
if (offs != 0) {
block[i++] = DW_OP_consts;
i += sleb128enc(offs, block+i);
block[i++] = DW_OP_plus;
}
block[i++] = DW_OP_plus_uconst;
i += uleb128enc(offs, block+i);
newattr(die, DW_AT_data_member_location, DW_CLS_BLOCK, i, mal(i));
memmove(die->attr->data, block, i);
}