| commit | 1b7621ad99d352629c096cba40eadc6fb2b0c294 | |
| author | Stefan Weil <sw@weilnetz.de> | |
| Thu, 13 Sep 2012 17:37:43 +0000 (13 19:37 +0200) | ||
| committer | Aurelien Jarno <aurelien@aurel32.net> | |
| Sat, 22 Sep 2012 13:10:22 +0000 (22 15:10 +0200) | ||
| tree | 04c24816e0f4644e4b2b3d8ebd02cead7b0dd35d | treesnapshot (tar.gz zip) |
| parent | 9bacf4143190ca57771c8db5981d040f9c625ae5 | commitdiff |
w64: Fix TCG helper functions with 5 arguments
TCG uses 6 registers for function arguments on 64 bit Linux hosts,
but only 4 registers on W64 hosts.
Commit 2999a0b20074a7e4a58f56572bb1436749368f59 increased the number
of arguments for some important helper functions from 4 to 5
which triggered a bug for W64 hosts: QEMU aborts when executing
helper_lcall_real in the guest's BIOS because function
tcg_target_get_call_iarg_regs_count always returned 6.
As W64 has only 4 registers for arguments, the 5th argument must be
passed on the stack using a correct stack offset.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
TCG uses 6 registers for function arguments on 64 bit Linux hosts,
but only 4 registers on W64 hosts.
Commit 2999a0b20074a7e4a58f56572bb1436749368f59 increased the number
of arguments for some important helper functions from 4 to 5
which triggered a bug for W64 hosts: QEMU aborts when executing
helper_lcall_real in the guest's BIOS because function
tcg_target_get_call_iarg_regs_count always returned 6.
As W64 has only 4 registers for arguments, the 5th argument must be
passed on the stack using a correct stack offset.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
| tcg/i386/tcg-target.c | diffblobblamehistory | |
| tcg/i386/tcg-target.h | diffblobblamehistory |