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src: cpu: aarch64: updated xbyak_aarch64 #1832

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Mar 14, 2024
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src: cpu: aarch64: updated xbyak_aarch64 #1832

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12 changes: 9 additions & 3 deletions src/cpu/aarch64/xbyak_aarch64/src/util_impl_linux.h
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@

namespace Xbyak_aarch64 {
namespace util {
#define XBYAK_AARCH64_ERROR_ fprintf(stderr, "%s, %d, Error occurrs during read cache infomation.\n", __FILE__, __LINE__);
#define XBYAK_AARCH64_ERROR_ fprintf(stderr, "%s, %d, Error occured while reading cache infomation.\n", __FILE__, __LINE__);
#define XBYAK_AARCH64_PATH_NODES "/sys/devices/system/node/node"
#define XBYAK_AARCH64_PATH_CORES "/sys/devices/system/node/node0/cpu"
#define XBYAK_AARCH64_PATH_CACHE_DIR "/sys/devices/system/cpu/cpu0/cache"
Expand Down Expand Up @@ -103,6 +103,8 @@ class CpuInfoLinux : public CpuInfo {
strncat(file_pattern, "[0-9]+", 16);

DIR *dir = opendir(dir_path);
if (dir == NULL)
return retVal;
struct dirent *dp;

dp = readdir(dir);
Expand Down Expand Up @@ -438,12 +440,16 @@ class CpuInfoLinux : public CpuInfo {

FILE *file = fopen(path_midr_el1, "r");
if (file == nullptr) {
throw Error(ERR_INTERNAL);
// sysfs is unaccessible for AWS Lambdas
fprintf(stderr, "%s, %d: Can't open MIDR_EL1 sysfs entry\n", __FILE__, __LINE__);
cacheInfo_.midr_el1 = 0xFF << 24;
return;
}

if (fread(buf, sizeof(char), 64, file) == 0) {
throw Error(ERR_INTERNAL);
// File can be empty if invoked inside docker container
fprintf(stderr, "%s, %d: Can't read MIDR_EL1 sysfs entry\n", __FILE__, __LINE__);
cacheInfo_.midr_el1 = 0xFF << 24;
return;
}

Expand Down