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SubjectRe: faddr2line issue
On Wed, Jul 20, 2022 at 09:39:42AM +0100, John Garry wrote:
> On 20/07/2022 01:06, Josh Poimboeuf wrote:
> > > So adding config DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT to v5.19-rc2 got it
> > > working again for me on arm64. However commit dcea997beed6 ("faddr2line: Fix
> > > overlapping text section failures, the sequel") seems to be broken for me,
> > > below - this first appeared in rc3. Any idea what the issue could be?
> > >
> > > $./faddr.sh hisi_sas_sata_done+0x8/0x38
> > > hisi_sas_sata_done+0x8/0x38:
> > > fs mm ??:0
> > Hm, what does faddr.sh do?
>
> ah, it's just a wrapper to call scripts/faddr2line with vmlinux and $1
> (being hisi_sas_sata_done+0x8/0x38, above) args
>
> > Does addr2line also fail?
>
> faddr2line fails, as below.
>
> >
> > Can you run
> >
> > bash -x scripts/faddr2line <vmlinux or .ko file> hisi_sas_sata_done+0x8/0x38
> >
> > and share the output?
>
> on rc3 we get:
>
> https://raw.githubusercontent.com/hisilicon/kernel-dev/private-topic-sas-5.19-faddr2line-linux-rc3/before2

Does this fix it?

diff --git a/scripts/faddr2line b/scripts/faddr2line
index 94ed98dd899f..57099687e5e1 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -112,7 +112,9 @@ __faddr2line() {
# section offsets.
local file_type=$(${READELF} --file-header $objfile |
${AWK} '$1 == "Type:" { print $2; exit }')
- [[ $file_type = "EXEC" ]] && is_vmlinux=1
+ if [[ $file_type = "EXEC" ]] || [[ $file_type == "DYN" ]]; then
+ is_vmlinux=1
+ fi

# Go through each of the object's symbols which match the func name.
# In rare cases there might be duplicates, in which case we print all
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