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58 lines
2.0 KiB
58 lines
2.0 KiB
From 72317b333b85eed483ad00bcd4f40944019a7c13 Mon Sep 17 00:00:00 2001 |
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From: "xtkoba+ruby@gmail.com" <xtkoba+ruby@gmail.com> |
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Date: Fri, 13 Aug 2021 13:45:53 +0000 |
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Subject: [PATCH] Ignore `DW_FORM_ref_addr` [Bug #17052] |
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Ignore `DW_FORM_ref_addr` form and other forms that are not supposed |
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to be used currently. |
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--- |
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addr2line.c | 23 ++++++++++++++++++++--- |
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1 file changed, 20 insertions(+), 3 deletions(-) |
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diff --git a/addr2line.c b/addr2line.c |
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index fed1a8da84e5..92c6da5e3bea 100644 |
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--- a/addr2line.c |
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+++ b/addr2line.c |
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@@ -1593,14 +1593,31 @@ di_read_cu(DebugInfoReader *reader) |
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} |
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static void |
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-read_abstract_origin(DebugInfoReader *reader, uint64_t abstract_origin, line_info_t *line) |
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+read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_origin, line_info_t *line) |
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{ |
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char *p = reader->p; |
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char *q = reader->q; |
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int level = reader->level; |
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DIE die; |
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- reader->p = reader->current_cu + abstract_origin; |
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+ switch (form) { |
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+ case DW_FORM_ref1: |
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+ case DW_FORM_ref2: |
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+ case DW_FORM_ref4: |
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+ case DW_FORM_ref8: |
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+ case DW_FORM_ref_udata: |
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+ reader->p = reader->current_cu + abstract_origin; |
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+ break; |
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+ case DW_FORM_ref_addr: |
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+ goto finish; /* not supported yet */ |
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+ case DW_FORM_ref_sig8: |
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+ goto finish; /* not supported yet */ |
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+ case DW_FORM_ref_sup4: |
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+ case DW_FORM_ref_sup8: |
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+ goto finish; /* not supported yet */ |
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+ default: |
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+ goto finish; |
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+ } |
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if (!di_read_die(reader, &die)) goto finish; |
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/* enumerate abbrev */ |
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@@ -1665,7 +1682,7 @@ debug_info_read(DebugInfoReader *reader, int num_traces, void **traces, |
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/* 1 or 3 */ |
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break; /* goto skip_die; */ |
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case DW_AT_abstract_origin: |
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- read_abstract_origin(reader, v.as.uint64, &line); |
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+ read_abstract_origin(reader, v.form, v.as.uint64, &line); |
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break; /* goto skip_die; */ |
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} |
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}
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