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| author | Brooks Davis <brooks@FreeBSD.org> | 2024-04-16 16:48:08 +0000 |
|---|---|---|
| committer | Brooks Davis <brooks@FreeBSD.org> | 2024-04-16 16:48:08 +0000 |
| commit | 7dd9070e4425a1c2e2418694fd632425a283d558 (patch) | |
| tree | 9daed2966241b87920e4c23347acb7dfa1af9f57 /lib/libc/include/libc_private.h | |
| parent | 792081a7300ecf368a1cf6a2f8ddb198d86abe55 (diff) | |
| download | src-7dd9070e4425a1c2e2418694fd632425a283d558.tar.gz src-7dd9070e4425a1c2e2418694fd632425a283d558.zip | |
libc: INTERPOS_SYS macro for interposed syscalls
This macro makes uses the __sys_<foo>_t typedefs from libsys.h to
greatly simplify calling functions in the interposing table.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D44389
Diffstat (limited to 'lib/libc/include/libc_private.h')
| -rw-r--r-- | lib/libc/include/libc_private.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libc/include/libc_private.h b/lib/libc/include/libc_private.h index b38603b59a88..73b22beffe88 100644 --- a/lib/libc/include/libc_private.h +++ b/lib/libc/include/libc_private.h @@ -252,6 +252,12 @@ enum { INTERPOS_MAX }; +#define _INTERPOS_SYS(type, idx, ...) \ + ((type *)*(__libc_interposing_slot(idx)))(__VA_ARGS__) +#define INTERPOS_SYS(syscall, ...) \ + _INTERPOS_SYS(__sys_## syscall ##_t, INTERPOS_## syscall \ + __VA_OPT__(,) __VA_ARGS__) + /* * yplib internal interfaces */ |