The branch main has been updated by brooks:
URL:
https://cgit.FreeBSD.org/src/commit/?id=fdccf0336197afe59be6f8859177fe2ff8f87fa6
commit fdccf0336197afe59be6f8859177fe2ff8f87fa6
Author: Brooks Davis <bro...@freebsd.org>
AuthorDate: 2025-02-19 16:53:32 +0000
Commit: Brooks Davis <bro...@freebsd.org>
CommitDate: 2025-02-19 16:55:05 +0000
libsys: Don't create or expose __realpathat
Previously, __realpathat was in libc and libsys (as is currently
standard), but not exported from libc which meant the stub in libc was
not filtered and thus libc's copy of the syscall was used. This broke
an upcoming change to CheriBSD limiting syscalls to libsys.
The realpath(3) implementation now uses __sys___realpathat so there are no
consumers of __realpathat. Switch it to PSEUDO (only _foo and __sys_foo
symbols) and remove __realpathat from Symbol.map.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D49049
---
lib/libsys/Makefile.sys | 1 +
lib/libsys/Symbol.map | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/libsys/Makefile.sys b/lib/libsys/Makefile.sys
index b38cd5935e2f..491c765e9416 100644
--- a/lib/libsys/Makefile.sys
+++ b/lib/libsys/Makefile.sys
@@ -50,6 +50,7 @@ STATICOBJS+= interposing_table.o
.endif
PSEUDO= \
+ __realpathat \
clock_gettime \
exit \
getlogin \
diff --git a/lib/libsys/Symbol.map b/lib/libsys/Symbol.map
index 51ea1b5da231..eb71c813ae86 100644
--- a/lib/libsys/Symbol.map
+++ b/lib/libsys/Symbol.map
@@ -3,7 +3,6 @@ FBSDprivate_1.0 {
__libsys_errno;
__getosreldate;
__libsys_interposing_slot;
- __realpathat;
_elf_aux_info;
freebsd11_fstat;
freebsd11_fstatat;
