From 3d3316b1dee885153d44210b2e95dba68d00613a Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 10 Nov 2020 23:35:19 +0000 Subject: hurd: keep only required PLTs in ld.so We need NO_RTLD_HIDDEN because of the need for PLT calls in ld.so. See Roland's comment in https://sourceware.org/bugzilla/show_bug.cgi?id=15605 "in the Hurd it's crucial that calls like __mmap be the libc ones instead of the rtld-local ones after the bootstrap phase, when the dynamic linker is being used for dlopen and the like." We used to just avoid all hidden use in the rtld ; this commit switches to keeping only those that should use PLT calls, i.e. essentially those defined in sysdeps/mach/hurd/dl-sysdep.c: __assert_fail __assert_perror_fail __*stat64 _exit This fixes a few startup issues, notably the call to __tunable_get_val that is made before PLTs are set up. --- sysdeps/mach/hurd/i386/ld.abilist | 1 - 1 file changed, 1 deletion(-) (limited to 'sysdeps/mach/hurd/i386/ld.abilist') diff --git a/sysdeps/mach/hurd/i386/ld.abilist b/sysdeps/mach/hurd/i386/ld.abilist index 2e9bf2811f..0eaea9f66d 100644 --- a/sysdeps/mach/hurd/i386/ld.abilist +++ b/sysdeps/mach/hurd/i386/ld.abilist @@ -9,7 +9,6 @@ GLIBC_2.2.6 __open64 F GLIBC_2.2.6 __pread64 F GLIBC_2.2.6 __read F GLIBC_2.2.6 __sbrk F -GLIBC_2.2.6 __strtoul_internal F GLIBC_2.2.6 __write F GLIBC_2.2.6 __writev F GLIBC_2.2.6 __xstat64 F -- cgit 1.4.1