diff options
| author | wayne warren <wayne.warren.s@gmail.com> | 2023-05-09 23:55:36 -0600 |
|---|---|---|
| committer | wayne warren <wayne.warren.s@gmail.com> | 2023-05-24 11:10:55 -0600 |
| commit | c176d6d58f11fe95aee22c820443da1b368cfbab (patch) | |
| tree | e22fb134eeb3ada1314cd44afb2b8da1752f234c | |
| parent | b72f485d18f243287d03d157a3e371bef00cc4f1 (diff) | |
examples: add getrandom.c example
| -rw-r--r-- | examples/Makefile | 11 | ||||
| -rw-r--r-- | examples/getrandom.c | 32 |
2 files changed, 38 insertions, 5 deletions
diff --git a/examples/Makefile b/examples/Makefile index dfbf48f..322b5d8 100644 --- a/examples/Makefile +++ b/examples/Makefile @@ -1,9 +1,10 @@ -CC=clang +CC ?= "clang" +SYSROOT ?= "../sysroot32" LLD_PATH=/prog/rust/build/x86_64-unknown-linux-gnu/lld/bin CFLAGS = --target=wasm32-wasmer-wasi \ -O2 \ - --sysroot ../../wasix-libc/sysroot32 \ + --sysroot ${SYSROOT} \ -matomics \ -mbulk-memory \ -mmutable-globals \ @@ -54,7 +55,7 @@ SRC=$(wildcard *.c) export PATH := $(LLD_PATH):$(PATH) -all: longjmp file-copy signal fork vfork fork-longjmp execve spawn pipe epoll +all: longjmp file-copy signal fork vfork fork-longjmp execve spawn pipe epoll getrandom cp -f ../dist/wasix/longjmp.wasm ../../wasmer/tests/integration/cli/tests/wasm/example-longjmp.wasm cp -f ../dist/wasix/fork.wasm ../../wasmer/tests/integration/cli/tests/wasm/example-fork.wasm cp -f ../dist/wasix/fork.wasm ../../packages/fork-test/test.wasm @@ -69,9 +70,9 @@ all: longjmp file-copy signal fork vfork fork-longjmp execve spawn pipe epoll %: %.c mkdir -p ../dist/host - clang $@.c -o ../dist/host/$@ + ${CC} $(CFLAGS) $@.c -o ../dist/host/$@ mkdir -p ../dist/wasix - clang $(CFLAGS) $(CLFLAGS) \ + ${CC} $(CFLAGS) $(CLFLAGS) \ $@.c \ -o ../dist/wasix/$@.rustc.wasm wasm-opt -O2 --asyncify ../dist/wasix/$@.rustc.wasm -o ../dist/wasix/$@.wasm diff --git a/examples/getrandom.c b/examples/getrandom.c new file mode 100644 index 0000000..7da78a5 --- /dev/null +++ b/examples/getrandom.c @@ -0,0 +1,32 @@ +#include <stdio.h> +#include <sys/random.h> +#include <unistd.h> + +int print_random_int_array() { + ssize_t retval; + int buf[100]; + retval = getrandom(buf, sizeof(int) * 100, 0); + if (retval == -1) { + return retval; + } + for (int i = 0; i < 100; ++i) { + printf("%d ", buf[i]); + } + printf("\n"); + return 0; +} + +int main() { + int i = 0, retval = 0; + while (i < 5) { + printf("trial %d:\n ", i); + retval = print_random_int_array(); + printf("\n"); + if (retval == -1) { + printf("failed!\n"); + return retval; + } + i++; + } + return 0; +} |