mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +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
27 lines
689 B
C
27 lines
689 B
C
/* https://github.com/cirosantilli/linux-kernel-module-cheat#userland-physical-address-experiments */
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#define _XOPEN_SOURCE 700
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#include <stdio.h> /* printf */
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#include <stdlib.h> /* EXIT_SUCCESS, EXIT_FAILURE, strtoull */
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#include "common.h" /* virt_to_phys_user */
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int main(int argc, char **argv)
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{
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pid_t pid;
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uintptr_t vaddr, paddr = 0;
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if (argc < 3) {
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printf("Usage: %s pid vaddr\n", argv[0]);
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return EXIT_FAILURE;
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}
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pid = strtoull(argv[1], NULL, 0);
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vaddr = strtoull(argv[2], NULL, 0);
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if (virt_to_phys_user(&paddr, pid, vaddr)) {
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fprintf(stderr, "error: virt_to_phys_user\n");
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return EXIT_FAILURE;
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};
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printf("0x%jx\n", (uintmax_t)paddr);
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return EXIT_SUCCESS;
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}
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