On 12/13/22 22:26, Helge Deller wrote:
The sparc and hppa architectures provide 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 <del...@gmx.de>
---
v2:
- drop m68k part (based on feedback from Laurent Vivier <laur...@vivier.eu>)
- change commit message
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9e2c0a18fc..d58e9b8d10 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8299,7 +8299,13 @@ static int open_net_route(CPUArchState *cpu_env, int fd)
#if defined(TARGET_SPARC)
static int open_cpuinfo(CPUArchState *cpu_env, int fd)
{
- dprintf(fd, "type\t\t: sun4u\n");
+ int i, num_cpus;
+
+ num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+ for (i = 0; i < num_cpus; i++) {
+ dprintf(fd, "%sprocessor\t: %d\n", (i > 0) ? "\n":"", i);
it turned out, that the procps tools expect the /proc/cpuinfo file
to have a trailing \n at the end of the file.
So, I'll respin this patch and send a v3 version to replace this
conditional \n-output.
Same applies for the hppa arch.....
+ dprintf(fd, "type\t\t: sun4u\n");
+ }
return 0;
}
#endif
@@ -8307,11 +8313,17 @@ 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, "%sprocessor\t: %d\n", (i > 0) ? "\n":"", i);
^^ here.
Helge
+ 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");
+ }
return 0;
}
#endif
