mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 18:25:57 +01:00
56738a1c70
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it breaks bisects at several points. All bugs will not bisect to this humongous change. It all started with a conversion of the Bash scripts to Python, mainly because I couldn't stand not being able to properly use --options for run which has a million options. Then since that required a full testing, I decided to do all the refactorings that I had in mind at once, and so I did and it became v2-rc. This is the largest patch I have ever done! OMG a few weeks of extra time. I'm never writing a Bash script for anything that starts getting big again. Some of the features are: * separate build-qemu and build-gem5 commands * common: convert scripts to python. Add --option for everything * rename build to build-buildroot now that we are splitting all the build commands, Linux kernel to follow * move all git submodules to submodules/ and all buildroot packages to packages/ * refactor the out/ structure. Keep projects on toplevel, because guest projects separate archs and host ones don't, making a toplevel arch wrong * do-release: rename to just release https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it * run: add --terminal and explain gem5 pdb * just track the lvimrc * store CLI kernel config fragment inside buildlroot to avoid conflicts * gem5: document m5 initparam * readme: make a bunch of things awesomer * readme: fix broken refs * parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c Could not fetch otherwise. * gem5: M5_OVERRIDE_PY_SOURCE
42 lines
1007 B
C
42 lines
1007 B
C
/* https://github.com/cirosantilli/linux-kernel-module-cheat#rand_check-out */
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#include <inttypes.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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int bss = 0;
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int data = 1;
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int main(__attribute__((unused)) int argc, char **argv) {
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int i, *ip;
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uint64_t uint64;
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FILE *fp;
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/* Loaded addresses. */
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printf("&i = %p\n", (void *)&i);
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printf("&argv[0] = %p\n", (void *)&argv[0]);
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printf("&main = %p\n", (void *)(intptr_t)main);
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printf("&bss = %p\n", (void *)&bss);
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printf("&data = %p\n", (void *)&data);
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/* Misc syscalls. */
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printf("time(NULL) = %ju\n", (uintmax_t)time(NULL));
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printf("pid = %ju\n", (uintmax_t)getpid());
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/* malloc */
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ip = malloc(sizeof(*ip));
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printf("&malloc = %p\n", (void *)ip);
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free(ip);
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/* /dev/urandom */
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fp = fopen("/dev/urandom", "rb");
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fread(&uint64, sizeof(uint64), 1, fp);
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printf("/dev/urandom = %" PRIx64 "\n", uint64);
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fclose(fp);
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}
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