https://sourceware.org/bugzilla/show_bug.cgi?id=26711
Bug ID: 26711
Summary: -z ibt and -z shstk are mishandled
Product: binutils
Version: 2.36 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Created attachment 12891
--> https://sourceware.org/bugzilla/attachment.cgi?id=12891&action=edit
A testcase
[hjl@gnu-cfl-2 cet-1]$ make LD=./ld.master
as --64 -defsym __64_bit__=1 -o foo.o foo.s
as --64 -defsym __64_bit__=1 -o bar.o bar.s
as --64 -defsym __64_bit__=1 -o start.o start.s
./ld.master -o x foo.o bar.o start.o -z shstk
./ld.master -o y foo.o start.o -z shstk
./readelf -n x
Displaying notes found in: .note.gnu.property
Owner Data size Description
GNU 0x00000040 NT_GNU_PROPERTY_TYPE_0
Properties: x86 feature: SHSTK
<procesor-specific type 0xc0001002 data: 02 00 00 00 >
x86 feature used: x86
<procesor-specific type 0xc0010002 data: 00 00 00 00 >
./readelf -n y
Displaying notes found in: .note.gnu.property
Owner Data size Description
GNU 0x00000040 NT_GNU_PROPERTY_TYPE_0
Properties: x86 feature: SHSTK
<procesor-specific type 0xc0001002 data: 02 00 00 00 >
x86 feature used: x86
<procesor-specific type 0xc0010002 data: 00 00 00 00 >
[hjl@gnu-cfl-2 cet-1]$
There should be no
<procesor-specific type 0xc0001002 data: 02 00 00 00 >
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