Linux Standard Base specifies section .note.ABI-tag that can be considered as a marker for ELF files targeted to Linux systems. See https://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html

This section, for example, is used by the GDB to identify Linux ELFs as compared to baremetal ELFs that do not have this section.

Signed-off-by: Anton Kolesov Anton.Kolesov@synopsys.com Cc: Vineet Gupta Vineet.Gupta1@synopsys.com --- libc/sysdeps/linux/arc/crt1.S | 15 +++++++++++++++ 1 file changed, 15 insertions(+)

diff --git a/libc/sysdeps/linux/arc/crt1.S b/libc/sysdeps/linux/arc/crt1.S index 95c41f8..0fe3cf9 100644 --- a/libc/sysdeps/linux/arc/crt1.S +++ b/libc/sysdeps/linux/arc/crt1.S @@ -55,3 +55,18 @@ __start: /* Should never get here.... */ flag 1 .size __start,.-__start + +/* Implement a .note.ABI-tag section that is mandatory for Linux executables + according to LSB. See: + https://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html. + Also: libc/sysdeps/linux/avr32/crt1.S. */ +.section ".note.ABI-tag", "a" + .align 4 + .long 1f - 0f /* Name length */ + .long 3f - 2f /* Data length */ + .long 1 /* Note type */ +0: .asciz "GNU" /* Vendor name */ +1: .align 4 +2: .long 0 /* Note data: Linux executable */ + .long 3,9,0 /* Earliest compatible kernel */ +3: .align 4 /* Pad out section */