https://sourceware.org/bugzilla/show_bug.cgi?id=25490
Bug ID: 25490
Summary: __patchable_function_entries section doesn't work with
--gc-sections
Product: binutils
Version: 2.35 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
[hjl@gnu-cfl-2 pr93492]$ cat x.i
void
_start (void)
{
}
[hjl@gnu-cfl-2 pr93492]$ gcc -c -fpatchable-function-entry=1 x.i
[hjl@gnu-cfl-2 pr93492]$ readelf -SW x.o | grep __patch
[ 4] __patchable_function_entries PROGBITS 0000000000000000 000048
000008 00 WA 0 0 1
[ 5] .rela__patchable_function_entries RELA 0000000000000000
000200 000018 18 I 11 4 8
[hjl@gnu-cfl-2 pr93492]$ ld x.o
[hjl@gnu-cfl-2 pr93492]$ readelf -SW a.out | grep __patch
[ 4] __patchable_function_entries PROGBITS 0000000000404000 003000
000008 00 WA 0 0 1
[hjl@gnu-cfl-2 pr93492]$ ld --gc-sections x.o
[hjl@gnu-cfl-2 pr93492]$ readelf -SW a.out | grep __patch
[hjl@gnu-cfl-2 pr93492]$
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