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ARM: Do not leave early init_jit if /proc is not mounted.

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* lib/jit_arm.c: Do not get confused with default settings
	if /proc is not mounted on Linux specific code path.
This commit is contained in:
pcpa 2014-04-22 14:39:10 -03:00
parent abf1b6e678
commit 354146b4ca
2 changed files with 29 additions and 25 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2014-04-22 Paulo Andrade <pcpa@gnu.org>
* lib/jit_arm.c: Do not get confused with default settings
if /proc is not mounted on Linux specific code path.
2014-04-09 Paulo Andrade <pcpa@gnu.org>
* include/lightning/jit_aarch64.h, include/lightning/jit_arm.h,

49
lib/jit_arm.c
View file

@ -142,35 +142,34 @@ jit_get_cpu(void)
char *ptr;
char buf[128];
if ((fp = fopen("/proc/cpuinfo", "r")) == NULL)
return;
while (fgets(buf, sizeof(buf), fp)) {
if (strncmp(buf, "CPU architecture:", 17) == 0) {
jit_cpu.version = strtol(buf + 17, &ptr, 10);
while (*ptr) {
if (*ptr == 'T' || *ptr == 't') {
++ptr;
if ((fp = fopen("/proc/cpuinfo", "r")) != NULL) {
while (fgets(buf, sizeof(buf), fp)) {
if (strncmp(buf, "CPU architecture:", 17) == 0) {
jit_cpu.version = strtol(buf + 17, &ptr, 10);
while (*ptr) {
if (*ptr == 'T' || *ptr == 't') {
++ptr;
jit_cpu.thumb = 1;
}
else if (*ptr == 'E' || *ptr == 'e') {
jit_cpu.extend = 1;
++ptr;
}
else
++ptr;
}
}
else if (strncmp(buf, "Features\t:", 10) == 0) {
if ((ptr = strstr(buf + 10, "vfpv")))
jit_cpu.vfp = strtol(ptr + 4, NULL, 0);
if ((ptr = strstr(buf + 10, "neon")))
jit_cpu.neon = 1;
if ((ptr = strstr(buf + 10, "thumb")))
jit_cpu.thumb = 1;
}
else if (*ptr == 'E' || *ptr == 'e') {
jit_cpu.extend = 1;
++ptr;
}
else
++ptr;
}
}
else if (strncmp(buf, "Features\t:", 10) == 0) {
if ((ptr = strstr(buf + 10, "vfpv")))
jit_cpu.vfp = strtol(ptr + 4, NULL, 0);
if ((ptr = strstr(buf + 10, "neon")))
jit_cpu.neon = 1;
if ((ptr = strstr(buf + 10, "thumb")))
jit_cpu.thumb = 1;
}
fclose(fp);
}
fclose(fp);
#endif
#if defined(__ARM_PCS_VFP)
if (!jit_cpu.vfp)