From 788d5e24ca19c6291cebd8d1ad5b5ed6abf42665 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Wed, 10 Apr 2019 20:11:19 -0400 Subject: remove external __syscall function and last remaining users the weak version of __syscall_cp_c was using a tail call to __syscall to avoid duplicating the 6-argument syscall code inline in small static-linked programs, but now that __syscall no longer exists, the inline expansion is no longer duplication. the syscall.h machinery suppported up to 7 syscall arguments, only via an external __syscall function, but we presently have no syscall call points that actually make use of that many, and the kernel only defines 7-argument calling conventions for arm, powerpc (32-bit), and sh. if it turns out we need them in the future, they can easily be added. --- src/internal/x32/syscall.s | 13 ------------- 1 file changed, 13 deletions(-) delete mode 100644 src/internal/x32/syscall.s (limited to 'src/internal/x32/syscall.s') diff --git a/src/internal/x32/syscall.s b/src/internal/x32/syscall.s deleted file mode 100644 index c4bee804..00000000 --- a/src/internal/x32/syscall.s +++ /dev/null @@ -1,13 +0,0 @@ -.global __syscall -.hidden __syscall -.type __syscall,@function -__syscall: - movq %rdi,%rax - movq %rsi,%rdi - movq %rdx,%rsi - movq %rcx,%rdx - movq %r8,%r10 - movq %r9,%r8 - movq 8(%rsp),%r9 - syscall - ret -- cgit v1.2.1