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8l: do not emit empty dwarf pe sections

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This change will allow to generate valid executable,
even if rsc disables dwarf generation, as it happend
at revision 9a64273f9d68.

R=rsc
CC=golang-dev, lvd, vcc
https://golang.org/cl/4425066
This commit is contained in:
Alex Brainman 2011-04-26 17:12:16 +10:00
parent 1038e7c853
commit 2d99974ec5
2 changed files with 7 additions and 8 deletions
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12
src/cmd/ld/dwarf.c
View File

@ -2567,12 +2567,8 @@ dwarfaddpeheaders(void)
newPEDWARFSection(".debug_line", linesize);
newPEDWARFSection(".debug_frame", framesize);
newPEDWARFSection(".debug_info", infosize);
if (pubnamessize > 0)
newPEDWARFSection(".debug_pubnames", pubnamessize);
if (pubtypessize > 0)
newPEDWARFSection(".debug_pubtypes", pubtypessize);
if (arangessize > 0)
newPEDWARFSection(".debug_aranges", arangessize);
if (gdbscriptsize > 0)
newPEDWARFSection(".debug_gdb_scripts", gdbscriptsize);
newPEDWARFSection(".debug_pubnames", pubnamessize);
newPEDWARFSection(".debug_pubtypes", pubtypessize);
newPEDWARFSection(".debug_aranges", arangessize);
newPEDWARFSection(".debug_gdb_scripts", gdbscriptsize);
}

3
src/cmd/ld/pe.c
View File

@ -415,6 +415,9 @@ newPEDWARFSection(char *name, vlong size)
IMAGE_SECTION_HEADER *h;
char s[8];
if(size == 0)
return nil;
if(nextsymoff+strlen(name)+1 > sizeof(symnames)) {
diag("pe string table is full");
errorexit();