From: Helge Deller Date: Fri, 27 Jan 2023 20:10:49 +0000 (+0100) Subject: linux-user: Fix /proc/cpuinfo output for hppa X-Git-Tag: v8.0.0-rc0~74^2~6 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e0174afeea23e56765db56fbbe465ed1fcbdd07a;p=thirdparty%2Fqemu.git linux-user: Fix /proc/cpuinfo output for hppa The hppa architectures provides an own output for the emulated /proc/cpuinfo file. Some userspace applications count (even if that's not the recommended way) the number of lines which start with "processor:" and assume that this number then reflects the number of online CPUs. Since those 3 architectures don't provide any such line, applications may assume "0" CPUs. One such issue can be seen in debian bug report: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024653 Avoid such issues by adding a "processor:" line for each of the online CPUs. Signed-off-by: Helge Deller Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Reviewed-by: Laurent Vivier Message-Id: Signed-off-by: Laurent Vivier --- diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 1c42df65180..55d53b344b8 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -8232,11 +8232,17 @@ static int open_cpuinfo(CPUArchState *cpu_env, int fd) #if defined(TARGET_HPPA) static int open_cpuinfo(CPUArchState *cpu_env, int fd) { - dprintf(fd, "cpu family\t: PA-RISC 1.1e\n"); - dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n"); - dprintf(fd, "capabilities\t: os32\n"); - dprintf(fd, "model\t\t: 9000/778/B160L\n"); - dprintf(fd, "model name\t: Merlin L2 160 QEMU (9000/778/B160L)\n"); + int i, num_cpus; + + num_cpus = sysconf(_SC_NPROCESSORS_ONLN); + for (i = 0; i < num_cpus; i++) { + dprintf(fd, "processor\t: %d\n", i); + dprintf(fd, "cpu family\t: PA-RISC 1.1e\n"); + dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n"); + dprintf(fd, "capabilities\t: os32\n"); + dprintf(fd, "model\t\t: 9000/778/B160L - " + "Merlin L2 160 QEMU (9000/778/B160L)\n\n"); + } return 0; } #endif