* [PATCH] debugedit: Don't hang on DW_FORM_strx references
@ 2022-11-10 18:17 Luís Ferreira
2022-11-10 18:28 ` contact
0 siblings, 1 reply; 2+ messages in thread
From: Luís Ferreira @ 2022-11-10 18:17 UTC (permalink / raw)
To: debugedit; +Cc: Luís Ferreira
Compilers that generate DWARF5 can write to .debug_info a DW_FORM_strx
reference. The code seem to handle it but hangs on the abbreviation
sanity check.
Signed-off-by: Luís Ferreira <contact@lsferreira.net>
---
tools/debugedit.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/debugedit.c b/tools/debugedit.c
index d82ae5a..4450b34 100644
--- a/tools/debugedit.c
+++ b/tools/debugedit.c
@@ -778,12 +778,17 @@ no_memory:
|| form == DW_FORM_line_strp
|| form == DW_FORM_implicit_const
|| form == DW_FORM_addrx
+ || form == DW_FORM_strx
|| form == DW_FORM_loclistx
|| form == DW_FORM_rnglistx
|| form == DW_FORM_addrx1
|| form == DW_FORM_addrx2
|| form == DW_FORM_addrx3
- || form == DW_FORM_addrx4)))
+ || form == DW_FORM_addrx4
+ || form == DW_FORM_strx1
+ || form == DW_FORM_strx2
+ || form == DW_FORM_strx3
+ || form == DW_FORM_strx4)))
{
error (0, 0, "%s: Unknown DWARF DW_FORM_0x%x", dso->filename,
form);
--
2.38.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] debugedit: Don't hang on DW_FORM_strx references
2022-11-10 18:17 [PATCH] debugedit: Don't hang on DW_FORM_strx references Luís Ferreira
@ 2022-11-10 18:28 ` contact
0 siblings, 0 replies; 2+ messages in thread
From: contact @ 2022-11-10 18:28 UTC (permalink / raw)
To: Luís Ferreira; +Cc: debugedit
Related to issue https://sourceware.org/bugzilla/show_bug.cgi?id=28728 and its duplicate https://sourceware.org/bugzilla/show_bug.cgi?id=29773 .
------- Original Message -------
On Thursday, November 10th, 2022 at 6:17 PM, Luís Ferreira <contact@lsferreira.net> wrote:
>
>
> Compilers that generate DWARF5 can write to .debug_info a DW_FORM_strx
> reference. The code seem to handle it but hangs on the abbreviation
> sanity check.
>
> Signed-off-by: Luís Ferreira contact@lsferreira.net
>
> ---
> tools/debugedit.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/tools/debugedit.c b/tools/debugedit.c
> index d82ae5a..4450b34 100644
> --- a/tools/debugedit.c
> +++ b/tools/debugedit.c
> @@ -778,12 +778,17 @@ no_memory:
> || form == DW_FORM_line_strp
> || form == DW_FORM_implicit_const
> || form == DW_FORM_addrx
> + || form == DW_FORM_strx
> || form == DW_FORM_loclistx
> || form == DW_FORM_rnglistx
> || form == DW_FORM_addrx1
> || form == DW_FORM_addrx2
> || form == DW_FORM_addrx3
> - || form == DW_FORM_addrx4)))
> + || form == DW_FORM_addrx4
> + || form == DW_FORM_strx1
> + || form == DW_FORM_strx2
> + || form == DW_FORM_strx3
> + || form == DW_FORM_strx4)))
> {
> error (0, 0, "%s: Unknown DWARF DW_FORM_0x%x", dso->filename,
>
> form);
> --
> 2.38.1
^ permalink raw reply [flat|nested] 2+ messages in thread
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