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Kernel+LibC: Add sys$perf_register_string()

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This syscall allows userspace to register a keyed string that appears in
a new "strings" JSON object in profile output.

This will be used to add custom strings to profile signposts. :^)
This commit is contained in:
Andreas Kling 2021-08-11 20:28:29 +02:00
parent 00b11d7577
commit 4657c79143
7 changed files with 43 additions and 0 deletions
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6
Userland/Libraries/LibC/serenity.cpp
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@ -95,6 +95,12 @@ int perf_event(int type, uintptr_t arg1, FlatPtr arg2)
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int perf_register_string(uintptr_t string_id, char const* string, size_t string_length)
{
int rc = syscall(SC_perf_register_string, string_id, string, string_length);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int get_stack_bounds(uintptr_t* user_stack_base, size_t* user_stack_size)
{
int rc = syscall(SC_get_stack_bounds, user_stack_base, user_stack_size);