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42 lines
1.2 KiB
42 lines
1.2 KiB
3 years ago
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diff -Naur 0/linux/init/main.c 4/linux/init/main.c
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--- 0/linux/init/main.c 2016-08-08 09:40:13.000000000 +0800
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+++ 4/linux/init/main.c 2021-07-06 14:16:56.000000000 +0800
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@@ -208,3 +208,9 @@
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}
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_exit(0); /* NOTE! _exit, not exit() */
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}
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+
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+void print_nr(int sid)
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+{
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+ if (sid > 86)
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+ printk(" --syscall: sid=%d, pid=%d\n", sid, current->pid);
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+}
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diff -Naur 0/linux/kernel/system_call.s 4/linux/kernel/system_call.s
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--- 0/linux/kernel/system_call.s 2015-09-03 20:21:09.000000000 +0800
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+++ 4/linux/kernel/system_call.s 2021-07-06 14:18:56.000000000 +0800
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@@ -91,6 +91,11 @@
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mov %dx,%es
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movl $0x17,%edx # fs points to local data space
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mov %dx,%fs
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+
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+ pushl %eax #by wyj
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+ call print_nr
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+ popl %eax
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+
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call sys_call_table(,%eax,4)
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pushl %eax
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movl current,%eax
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diff -Naur 0/linux/mm/memory.c 4/linux/mm/memory.c
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--- 0/linux/mm/memory.c 2015-09-04 15:24:20.000000000 +0800
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+++ 4/linux/mm/memory.c 2021-07-06 14:21:45.000000000 +0800
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@@ -370,6 +370,9 @@
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unsigned long page;
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int block,i;
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+ if (current->pid > 5)
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+ printk(" --do_no_page: address=%x, pid=%d\n", address, current->pid);
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+
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address &= 0xfffff000;
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tmp = address - current->start_code;
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if (!current->executable || tmp >= current->end_data) {
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