Add support for S_DEFRANGE* entries
Signed-off-by: Eric Pouech eric.pouech@gmail.com
--- dlls/dbghelp/msc.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 60 insertions(+), 3 deletions(-)
diff --git a/dlls/dbghelp/msc.c b/dlls/dbghelp/msc.c index 0c58e5fc14f..0247a90f6ff 100644 --- a/dlls/dbghelp/msc.c +++ b/dlls/dbghelp/msc.c @@ -1699,7 +1699,11 @@ static unsigned codeview_transform_defrange(const struct msc_debug_info* msc_dbg switch (symrange->generic.id) { case S_DEFRANGE: + codeview_xform_range(msc_dbg, locinfo, &symrange->defrange_v3.range); + /* FIXME: transformation unsupported; let loc_compute bark if actually needed */ + break; case S_DEFRANGE_SUBFIELD: + codeview_xform_range(msc_dbg, locinfo, &symrange->defrange_subfield_v3.range); /* FIXME: transformation unsupported; let loc_compute bark if actually needed */ break; case S_DEFRANGE_REGISTER: @@ -1734,7 +1738,7 @@ static unsigned codeview_transform_defrange(const struct msc_debug_info* msc_dbg unsigned gaplen = (const char*)get_next_sym(symrange) - (const char*)gap; locinfo->ngaps = gaplen / sizeof(*gap); memcpy(locinfo->gaps, gap, gaplen); - locinfo = (struct cv_local_info*)((unsigned char*)(locinfo + 1) + gaplen); + locinfo = (struct cv_local_info*)((char*)(locinfo + 1) + gaplen); } else { @@ -2220,13 +2224,66 @@ static BOOL codeview_snarf(const struct msc_debug_info* msc_dbg, const BYTE* roo return TRUE; }
+static BOOL codeview_is_inside(const struct cv_local_info* locinfo, const struct symt_function* func, DWORD_PTR ip) +{ + unsigned i; + /* ip must be in local_info range, but not in any of its gaps */ + if (ip < locinfo->start || ip >= locinfo->start + locinfo->rangelen) return FALSE; + for (i = 0; i < locinfo->ngaps; ++i) + if (func->address + locinfo->gaps[i].gapStartOffset <= ip && + ip < func->address + locinfo->gaps[i].gapStartOffset + locinfo->gaps[i].cbRange) + return FALSE; + return TRUE; +} + static void pdb_location_compute(struct process* pcs, const struct module_format* modfmt, const struct symt_function* func, struct location* loc) - { - loc->kind = loc_register; + const struct cv_local_info* locinfo; + + switch (loc->kind) + { + case loc_cv_local_range: + for (locinfo = (const struct cv_local_info*)loc->offset; + locinfo->kind != 0; + locinfo = (const struct cv_local_info*)((const char*)(locinfo + 1) + locinfo->ngaps * sizeof(locinfo->gaps[0]))) + { + if (!codeview_is_inside(locinfo, func, pcs->localscope_pc)) continue; + switch (locinfo->kind) + { + case S_DEFRANGE: + case S_DEFRANGE_SUBFIELD: + default: + FIXME("Unsupported defrange %d\n", locinfo->kind); + loc->kind = loc_error; + loc->reg = loc_err_internal; + return; + case S_DEFRANGE_SUBFIELD_REGISTER: + FIXME("sub-field part not handled\n"); + /* fall through */ + case S_DEFRANGE_REGISTER: + loc->kind = loc_register; + loc->reg = locinfo->reg; + return; + case S_DEFRANGE_REGISTER_REL: + loc->kind = loc_regrel; + loc->reg = locinfo->reg; + loc->offset = locinfo->offset; + return; + case S_DEFRANGE_FRAMEPOINTER_REL: + case S_DEFRANGE_FRAMEPOINTER_REL_FULL_SCOPE: + loc->kind = loc_regrel; + loc->reg = dbghelp_current_cpu->frame_regno; + loc->offset = locinfo->offset; + return; + } + } + break; + default: break; + } + loc->kind = loc_error; loc->reg = loc_err_internal; }