diff options
Diffstat (limited to 'sysdeps/unix/make-syscalls.sh')
| -rw-r--r-- | sysdeps/unix/make-syscalls.sh | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index 58d165e015..e39b2d6d52 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -12,7 +12,6 @@ # # Syscall Signature Prefixes: # -# C: cancellable (i.e., this syscall is a cancellation point) # E: errno and return value are not set by the call # V: errno is not set, but errno or zero (success) is returned from the call # @@ -104,7 +103,7 @@ emit_weak_aliases() fi echo " echo 'versioned_symbol (libc, $source, $base, $ver)'; \\" echo " echo '#else'; \\" - echo " echo 'strong_alias ($strong, $base)'; \\" + echo " echo 'weak_alias ($strong, $base)'; \\" echo " echo '#endif'; \\" ;; *@*) @@ -171,11 +170,9 @@ while read file srcfile caller syscall args strong weak; do ;; esac - cancellable=0 noerrno=0 errval=0 case $args in - C*) cancellable=1; args=`echo $args | sed 's/C:\?//'`;; E*) noerrno=1; args=`echo $args | sed 's/E:\?//'`;; V*) errval=1; args=`echo $args | sed 's/V:\?//'`;; esac @@ -258,7 +255,6 @@ while read file srcfile caller syscall args strong weak; do (echo '#define SYSCALL_NAME $syscall'; \\ echo '#define SYSCALL_NARGS $nargs'; \\ echo '#define SYSCALL_SYMBOL $strong'; \\ - echo '#define SYSCALL_CANCELLABLE $cancellable'; \\ echo '#define SYSCALL_NOERRNO $noerrno'; \\ echo '#define SYSCALL_ERRVAL $errval'; \\ echo '#include <syscall-template.S>'; \\" @@ -284,15 +280,14 @@ while read file srcfile caller syscall args strong weak; do \$(foreach p,\$(sysd-rules-targets),\$(objpfx)\$(patsubst %,\$p,$file).os): \\ \$(..)sysdeps/unix/make-syscalls.sh \$(make-target-directory) - (echo '#include <dl-vdso.h>'; \\ - echo 'extern void *${strong}_ifunc (void) __asm ("${strong}");'; \\ - echo 'void *'; \\ - echo '${strong}_ifunc (void)'; \\ - echo '{'; \\ - echo ' PREPARE_VERSION_KNOWN (symver, ${vdso_symver});'; \\ - echo ' return _dl_vdso_vsym ("${vdso_symbol}", &symver);'; \\ - echo '}'; \\ - echo 'asm (".type ${strong}, %gnu_indirect_function");'; \\ + (echo '#define ${strong} __redirect_${strong}'; \\ + echo '#include <dl-vdso.h>'; \\ + echo '#undef ${strong}'; \\ + echo '#define vdso_ifunc_init() \\'; \\ + echo ' PREPARE_VERSION_KNOWN (symver, ${vdso_symver})'; \\ + echo '__ifunc (__redirect_${strong}, ${strong},'; \\ + echo ' _dl_vdso_vsym ("${vdso_symbol}", &symver), void,'; \\ + echo ' vdso_ifunc_init)'; \\ EOF # This is doing "hidden_def (${strong})", but the compiler # doesn't know that we've defined ${strong} in the same file, so |