diff options
Diffstat (limited to 'results/classifier/qwen3:32b/output/syscall/1906193')
| -rw-r--r-- | results/classifier/qwen3:32b/output/syscall/1906193 | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/output/syscall/1906193 b/results/classifier/qwen3:32b/output/syscall/1906193 new file mode 100644 index 000000000..3d8af2070 --- /dev/null +++ b/results/classifier/qwen3:32b/output/syscall/1906193 @@ -0,0 +1,60 @@ + + + +riscv32 user mode emulation: fork return values broken + +When running in a chroot with riscv32 (on x86_64; qemu git master as of today): + +The following short program forks; the child immediately returns with exit(42). The parent checks for the return value - and obtains 40! + +gcc-10.2 + +=============================================== +#include <stdlib.h> +#include <unistd.h> +#include <stdio.h> +#include <sys/wait.h> + +main(c, v) + int c; + char **v; +{ + pid_t pid, p; + int s, i, n; + + s = 0; + pid = fork(); + if (pid == 0) + exit(42); + + /* wait for the process */ + p = wait(&s); + if (p != pid) + exit (255); + + if (WIFEXITED(s)) + { + int r=WEXITSTATUS(s); + if (r!=42) { + printf("child wants to return %i (0x%X), parent received %i (0x%X), difference %i\n",42,42,r,r,r-42); + } + } +} +=============================================== + +(riscv-ilp32 chroot) farino /tmp # ./wait-test-short +child wants to return 42 (0x2A), parent received 40 (0x28), difference -2 + +=============================================== +(riscv-ilp32 chroot) farino /tmp # gcc --version +gcc (Gentoo 10.2.0-r1 p2) 10.2.0 +Copyright (C) 2020 Free Software Foundation, Inc. +Dies ist freie Software; die Kopierbedingungen stehen in den Quellen. Es +gibt KEINE Garantie; auch nicht für MARKTGÄNGIGKEIT oder FÜR SPEZIELLE ZWECKE. + +(riscv-ilp32 chroot) farino /tmp # ld --version +GNU ld (Gentoo 2.34 p6) 2.34.0 +Copyright (C) 2020 Free Software Foundation, Inc. +This program is free software; you may redistribute it under the terms of +the GNU General Public License version 3 or (at your option) a later version. +This program has absolutely no warranty. \ No newline at end of file |