Package: gcc-riscv64-unknown-elf
Version: 8.3.0.2019.08+dfsg-1
Severity: normal
Dear Maintainer,
I am trying to use the riscv toolchain to build a bare metal
application. It appears to have a broken stdint.h:
$ cat test.c
#include <stdint.h>
$ riscv64-unknown-elf-gcc -E -march=rv32i -mabi=ilp32 -c test.c
# 1 "test.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "test.c"
# 1 "/usr/lib/gcc/riscv64-unknown-elf/8.3.0/include/stdint.h" 1 3 4
In file included from test.c:1:
/usr/lib/gcc/riscv64-unknown-elf/8.3.0/include/stdint.h:9:16: fatal error:
stdint.h: No such file or directory
# include_next <stdint.h>
^~~~~~~~~~
$ cat /usr/lib/gcc/riscv64-unknown-elf/8.3.0/include/stdint.h
#ifndef _GCC_WRAP_STDINT_H
#if __STDC_HOSTED__
# if defined __cplusplus && __cplusplus >= 201103L
# undef __STDC_LIMIT_MACROS
# define __STDC_LIMIT_MACROS
# undef __STDC_CONSTANT_MACROS
# define __STDC_CONSTANT_MACROS
# endif
# include_next <stdint.h>
#else
# include "stdint-gcc.h"
#endif
#define _GCC_WRAP_STDINT_H
#endif
$ riscv64-unknown-elf-gcc -E -march=rv32i -mabi=ilp32 -dM -nostdlib - <
/dev/null |grep STDC_HOSTED
#define __STDC_HOSTED__ 1
stdint-gcc.h is a "real" stdint.h, containing the definitions I want.
I'm not sure how a user is supposed to tell the toolchain to use that
instead, if they can at all.
Comparing it to Debian's arm bare metal toolchain:
$ dpkg -L gcc-arm-none-eabi |grep stdint
/usr/lib/gcc/arm-none-eabi/8.3.1/include/stdint.h
/usr/lib/gcc/arm-none-eabi/8.3.1/plugin/include/config/newlib-stdint.h
The stdint.h here is equivalent to the riscv stdint-gcc.h, so the test
program compiles in that case.
Is this something that can be fixed with the riscv toolchain? Or is it
user error on my part?
-- System Information:
Debian Release: bullseye/sid
APT prefers testing
APT policy: (900, 'testing'), (300, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-1-amd64 (SMP w/8 CPU threads)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8),
LANGUAGE=en_AU:en
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: SELinux: enabled - Mode: Permissive - Policy name: default
Versions of packages gcc-riscv64-unknown-elf depends on:
ii binutils-riscv64-unknown-elf 2.32.2020.04+dfsg-2
ii libc6 2.31-6
ii libgcc-s1 [libgcc1] 10.2.1-3
ii libgmp10 2:6.2.1+dfsg-1
ii libmpc3 1.2.0-1
ii libmpfr6 4.1.0-3
ii libstdc++6 10.2.1-3
ii zlib1g 1:1.2.11.dfsg-2
gcc-riscv64-unknown-elf recommends no packages.
gcc-riscv64-unknown-elf suggests no packages.
-- no debconf information
