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Update CMakeLists.txt

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Check RDRAND symbols
This commit is contained in:
Zhi Guan
2023-10-16 08:48:19 +08:00
parent 71fb469801
commit 8148b9ac52
2 changed files with 47 additions and 14 deletions
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41
CMakeLists.txt
View File

@@ -187,6 +187,8 @@ set(demos
demo_zuc
)
include(CheckSymbolExists)
# when an option has been enabled, `cmake ..` will not refresh the value
# use `cmake .. -DENABLE_XXX=OFF` to disable the option
@@ -254,16 +256,29 @@ endif()
option(ENABLE_INTEL_RDRAND "Enable Intel RDRAND instructions" OFF)
option(ENABLE_INTEL_RDSEED "Enable Intel RDSEED instructions" OFF)
if (${CMAKE_SYSTEM_PROCESSOR} MATCHES x86_64)
set(ENABLE_INTEL_RDRAND ON)
endif()
if (ENABLE_INTEL_RDRAND)
message(STATUS "ENABLE_INTEL_RDRAND")
list(APPEND src src/rdrand.c)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mrdrnd")
include(CheckSourceCompiles)
set(CMAKE_REQUIRED_FLAGS "-rdrand")
check_source_compiles(C
"#include <immintrin.h> int main(void) { unsigned long long val; _rdrand64_step(&val); return 0; }"
HAVE_INTEL_RDRAND)
if (HAVE_INTEL_RDRAND)
message(STATUS "ENABLE_INTEL_RDRAND")
add_definitions(-DINTEL_RDRAND)
list(APPEND src src/rdrand.c)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mrdrnd")
endif()
if (ENABLE_INTEL_RDSEED)
add_definitions(-DINTEL_RDSEED)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mrdseed")
set(CMAKE_REQUIRED_FLAGS "-rdseed")
check_source_compiles(C
"#include <immintrin.h> int main(void) { unsigned long long val; _rdseed64_step(&val); return 0; }"
HAVE_INTEL_RDSEED)
if (HAVE_INTEL_RDSEED)
message(STATUS "ENABLE_INTEL_RDSEED")
add_definitions(-DINTEL_RDSEED)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mrdseed")
endif()
endif()
endif()
@@ -275,16 +290,20 @@ if (ENABLE_GMT_0105_RNG)
list(APPEND tests sm3_rng sm4_cbc_mac sm4_rng)
endif()
check_symbol_exists(getentropy "unistd.h" HAVE_GETENTROPY)
if (WIN32)
list(APPEND src src/rand_win.c src/http_win.c)
elseif (APPLE)
list(APPEND src src/rand_apple.c src/http.c)
elseif (ANDROID)
list(APPEND src src/rand.c src/http.c)
else()
elseif (HAVE_GETENTROPY)
list(APPEND src src/rand_unix.c src/http.c)
message(STATUS "have getentropy")
else()
list(APPEND src src/rand.c src/http.c)
endif()
option(ENABLE_HTTP_TESTS "Enable HTTP GET/POST related tests" OFF)
if (ENABLE_HTTP_TESTS)
message(STATUS "ENABLE_HTTP_TESTS")

20
tools/rand.c
View File

@@ -17,7 +17,7 @@
#include <gmssl/rand.h>
static const char *options = "[-hex] [-rdrand] -outlen num [-out file]";
static const char *options = "[-hex] [-rdrand|-rdseed] -outlen num [-out file]";
int rand_main(int argc, char **argv)
{
@@ -25,6 +25,7 @@ int rand_main(int argc, char **argv)
char *prog = argv[0];
int hex = 0;
int rdrand = 0;
int rdseed = 0;
int outlen = 0;
char *outfile = NULL;
FILE *outfp = stdout;
@@ -47,6 +48,8 @@ int rand_main(int argc, char **argv)
hex = 1;
} else if (!strcmp(*argv, "-rdrand")) {
rdrand = 1;
} else if (!strcmp(*argv, "-rdseed")) {
rdseed = 1;
} else if (!strcmp(*argv, "-outlen")) {
if (--argc < 1) goto bad;
outlen = atoi(*(++argv));
@@ -82,12 +85,23 @@ bad:
size_t len = outlen < sizeof(buf) ? outlen : sizeof(buf);
if (rdrand) {
/*
#ifdef INTEL_RDRAND
if (rdrand_bytes(buf, len) != 1) {
fprintf(stderr, "%s: inner error\n", prog);
goto end;
}
*/
#else
fprintf(stderr, "%s: `-rdrand` is not supported on your platform\n", prog);
#endif
} else if (rdseed) {
#ifdef INTEL_RDSEED
if (rdseed_bytes(buf, len) != 1) {
fprintf(stderr, "%s: inner error\n", prog);
goto end;
}
#else
fprintf(stderr, "%s: `-rdseed` is not supported on your platform\n", prog);
#endif
} else {
if (rand_bytes(buf, len) != 1) {
fprintf(stderr, "%s: inner error\n", prog);