From f112dcc506a6ec0aac5c34891736eec3c4f5dad6 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 8 Jun 2020 14:41:57 +0200 Subject: hurd: document that gcc&gdb look at the trampoline code * sysdeps/mach/hurd/i386/trampoline.c (rpc_wait_trampoline): Document which gcc and gdb files look at the code of the trampoline. --- sysdeps/mach/hurd/i386/trampoline.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sysdeps/mach/hurd/i386/trampoline.c b/sysdeps/mach/hurd/i386/trampoline.c index e7eb316..8c79769 100644 --- a/sysdeps/mach/hurd/i386/trampoline.c +++ b/sysdeps/mach/hurd/i386/trampoline.c @@ -227,7 +227,11 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler, } /* The trampoline code follows. This used to be located inside - _hurd_setup_sighandler, but was optimized away by gcc 2.95. */ + _hurd_setup_sighandler, but was optimized away by gcc 2.95. + + If you modify this, update + - in gcc: libgcc/config/i386/gnu-unwind.h x86_gnu_fallback_frame_state, + - in gdb: gdb/i386-gnu-tdep.c gnu_sigtramp_code. */ asm ("rpc_wait_trampoline:\n"); /* This is the entry point when we have an RPC reply message to receive -- cgit v1.1