getdtablesize() returns wrong value in qemu user mode on Linux/alpha
Host environment
- Operating system: Ubuntu 20.04
- OS/kernel version: Linux 5.11.0-27-generic x86_64
- Architecture: x86_64
- QEMU flavor: qemu-alpha
- QEMU version: 6.1.0
- QEMU command line:
qemu-alpha ./a.out
Emulated/Virtualized environment
- Operating system: Linux
- OS/kernel version: --
- Architecture: alpha
Description of problem
The getdtablesize()
function returns a value that is too large. Namely, getdtablesize() - 1
ought to be a valid file descriptor, but is not.
Steps to reproduce
# apt install g++-10-alpha-linux-gnu
$ alpha-linux-gnu-gcc-10 -Wall -static foo.c
- Transfer the a.out file to a Linux/alpha machine; execute it there. The return code is 0.
$ QEMU_LD_PREFIX=/usr/alpha-linux-gnu ~/inst-qemu/6.1.0/bin/qemu-alpha ./a.out ; echo $?
Expected: 0
Actual: 1
Additional information
Edited by Bruno Haible