mirror of
https://github.com/clearlinux/graphene.git
synced 2026-09-03 12:21:37 +00:00
borysp
c24bddd5aa
Change log (most important only):
- unify CPU context structures - now we have only one version -
`PAL_CONTEXT` - which is shared between LibOS and PALs and it should
depend only on the host architecture (not OS),
- syscalls emulation changed:
- dedicated LibOS stack is now used for syscalls emulation,
- removed one indirection level in syscalls table - now it stores
`shim_do_*` functions directly,
- signal handling - completely rewritten:
- all signal queues use proper locking schemes now,
- signals are handled *only* when returning to the user app from LibOS
or PAL,
- nested signals are now possible,
- the app is allowed to jump out of signal handler with the same
sematics as on normal Linux,
- signal altstack is now fully supported,
- syscall restarting is now supported,
- doing a backtrace from the signal handler works properly,
- disallow injecting host-level signals, with one exception, see
`sys.enable_sigterm_injection` manifest option for more details.
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
#include "pal.h"
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#include "pal_debug.h"
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int main(int argc, char** argv, char** envp) {
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/* check if the program is loaded */
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pal_printf("User Program Started\n");
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/* check control block */
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/* check executable name */
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pal_printf("Loaded Executable: %s\n", pal_control.executable);
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/* check arguments */
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pal_printf("# of Arguments: %d\n", argc);
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for (int i = 0; i < argc; i++) {
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pal_printf("argv[%d] = %s\n", i, argv[i]);
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}
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/* unique process ID */
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pal_printf("Process ID: %016lx\n", pal_control.process_id);
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/* parent process */
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pal_printf("Parent Process: %p\n", pal_control.parent_process);
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/* test debug stream */
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char* msg = "Written to Debug Stream\n";
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DkDebugLog(msg, strlen(msg));
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/* Allocation Alignment */
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pal_printf("Allocation Alignment: %ld\n", pal_control.alloc_align);
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/* user address range */
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pal_printf("User Address Range: %p - %p\n", pal_control.user_address.start,
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pal_control.user_address.end);
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if (pal_control.user_address.start && pal_control.user_address.end &&
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pal_control.user_address.start < pal_control.user_address.end)
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pal_printf("User Address Range OK\n");
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pal_printf("CPU num: %ld\n", pal_control.cpu_info.online_logical_cores);
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pal_printf("CPU vendor: %s\n", pal_control.cpu_info.cpu_vendor);
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pal_printf("CPU brand: %s\n", pal_control.cpu_info.cpu_brand);
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pal_printf("CPU family: %ld\n", pal_control.cpu_info.cpu_family);
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pal_printf("CPU model: %ld\n", pal_control.cpu_info.cpu_model);
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pal_printf("CPU stepping: %ld\n", pal_control.cpu_info.cpu_stepping);
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pal_printf("CPU flags: %s\n", pal_control.cpu_info.cpu_flags);
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return 0;
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}
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