* [Bug runtime/23890] New: on f29 and later, elf segment/plt rearrangement leads to buildid verification errors
@ 2018-11-15 20:03 fche at redhat dot com
2018-11-15 23:48 ` [Bug runtime/23890] " fche at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: fche at redhat dot com @ 2018-11-15 20:03 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23890
Bug ID: 23890
Summary: on f29 and later, elf segment/plt rearrangement leads
to buildid verification errors
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: fche at redhat dot com
Target Milestone: ---
$ eu-readelf -l /bin/stap
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz
Flg Align
PHDR 0x000040 0x0000000000000040 0x0000000000000040 0x0002a0
0x0002a0 R 0x8
INTERP 0x0002e0 0x00000000000002e0 0x00000000000002e0 0x00001c
0x00001c R 0x1
[Requesting program interpreter: /lib64/ld-linux-x86-64.so.2]
LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x02df40
0x02df40 R 0x1000
LOAD 0x02e000 0x000000000002e000 0x000000000002e000 0x265415
0x265415 R E 0x1000
Segment Sections...
00
01 [RO: .interp]
02 [RO: .interp .note.gnu.property .note.ABI-tag .note.gnu.build-id
.gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rela.dyn .rela.plt]
03 [RO: .init .plt .plt.sec .text .fini]
but ... uprobes-inode.c ignores segment #2 (with the .notes) because it is
non-executable:
00777 /* Check non-writable, executable sections for probes. */
00778 if ((vm_flags & VM_EXEC) && !(vm_flags & VM_WRITE))
00779 rc = stapiu_change_plus(target, task, addr, length,
00780 offset, vm_flags,
dentry->d_inode);
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* [Bug runtime/23890] on f29 and later, elf segment/plt rearrangement leads to buildid verification errors
2018-11-15 20:03 [Bug runtime/23890] New: on f29 and later, elf segment/plt rearrangement leads to buildid verification errors fche at redhat dot com
@ 2018-11-15 23:48 ` fche at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: fche at redhat dot com @ 2018-11-15 23:48 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23890
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
commit fba365b4d365
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