https://sourceware.org/bugzilla/show_bug.cgi?id=26705
Bug ID: 26705 Summary: REX_W prefix isn't properly handled Product: binutils Version: 2.36 (HEAD) Status: NEW Severity: normal Priority: P2 Component: binutils Assignee: unassigned at sourceware dot org Reporter: hjl.tools at gmail dot com Target Milestone: --- Target: x86-64 [hjl@gnu-cfl-2 tmp]$ cat x.s sysretq mov %rsp,%rbp sysretq [hjl@gnu-cfl-2 tmp]$ gcc -c x.s [hjl@gnu-cfl-2 tmp]$ objdump -dw x.o x.o: file format elf64-x86-64 Disassembly of section .text: 0000000000000000 <.text>: 0: 48 0f 07 sysretq 3: 48 89 e5 mov %rsp,%rbp 6: 48 0f 07 rex.W sysret [hjl@gnu-cfl-2 tmp]$ -- You are receiving this mail because: You are on the CC list for the bug.