Am 07.04.2012 18:23, schrieb Peter Maydell:
On 7 April 2012 16:53, Stefan Weil <s...@weilnetz.de> wrote:
Not all i386 / x86_64 hosts use ELF.
Ask the compiler whether ELF is used.
tcg/i386/tcg-target.c | 6 +++++-
+#if !defined(__ELF__)
+ /* Host machine without ELF. */
Hmm, should this check maybe go in the generic tcg code
rather than the i386 specific bits?
-- PMM
Extract from tcg/tcg.c:
#ifdef ELF_HOST_MACHINE
/* In order to use this feature, the backend needs to do three things:
(1) Define ELF_HOST_MACHINE to indicate both what value to
put into the ELF image and to indicate support for the feature.
(2) Define tcg_register_jit. This should create a buffer containing
the contents of a .debug_frame section that describes the post-
prologue unwind info for the tcg machine.
(3) Call tcg_register_jit_int, with the constructed .debug_frame.
*/
So the generic tcg code checks ELF_HOST_MACHINE.
I see no reasonable way to simplify the checks, because each tcg target
must decide whether it supports that feature or not.
Happy Easter
Stefan W.
