Eric Pouech : dbghelp/dwarf: Add proper support for DW_FORM_GNU_ref_alt.
Alexandre Julliard
julliard at winehq.org
Thu Sep 16 15:34:32 CDT 2021
Module: wine
Branch: master
Commit: dc0ac71f5a7a41c2976d659cfa37b3db26c20a27
URL: https://source.winehq.org/git/wine.git/?a=commit;h=dc0ac71f5a7a41c2976d659cfa37b3db26c20a27
Author: Eric Pouech <eric.pouech at gmail.com>
Date: Thu Sep 16 11:10:47 2021 +0200
dbghelp/dwarf: Add proper support for DW_FORM_GNU_ref_alt.
Signed-off-by: Eric Pouech <eric.pouech at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/dbghelp/dwarf.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/dlls/dbghelp/dwarf.c b/dlls/dbghelp/dwarf.c
index c0f4afcb606..fffc7c37c13 100644
--- a/dlls/dbghelp/dwarf.c
+++ b/dlls/dbghelp/dwarf.c
@@ -680,9 +680,16 @@ static BOOL dwarf2_fill_attr(const dwarf2_parse_context_t* ctx,
break;
case DW_FORM_GNU_ref_alt:
- FIXME("Unhandled FORM_GNU_ref_alt\n");
- attr->u.uvalue = 0;
- return FALSE;
+ if (!ctx->module_ctx->dwz)
+ {
+ ERR("No DWZ file present for GNU_ref_alt in %s\n", debugstr_w(ctx->module_ctx->module->modulename));
+ attr->u.uvalue = 0;
+ return FALSE;
+ }
+ attr->u.uvalue = dwarf2_get_addr(data, ctx->head.offset_size);
+ TRACE("ref_alt<0x%lx>\n", attr->u.uvalue);
+ break;
+
case DW_FORM_GNU_strp_alt:
if (ctx->module_ctx->dwz)
{
@@ -767,6 +774,10 @@ static dwarf2_debug_info_t* dwarf2_jump_to_debug_info(struct attribute* attr)
case DW_FORM_ref_addr:
ref_ctx = dwarf2_locate_cu(attr->debug_info->unit_ctx->module_ctx, attr->u.uvalue);
break;
+ case DW_FORM_GNU_ref_alt:
+ if (attr->debug_info->unit_ctx->module_ctx->dwz)
+ ref_ctx = dwarf2_locate_cu(&attr->debug_info->unit_ctx->module_ctx->dwz->module_ctx, attr->u.uvalue);
+ break;
default:
with_other = FALSE;
ref_ctx = attr->debug_info->unit_ctx;
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