From c7119e281b21bcfc88e5fdce2a5d8ebdbf6c6b62 Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Fri, 17 Dec 2010 03:11:53 +0800 Subject: [PATCH] mapi: Add ABI-tag note. TLS requires kernel >= 2.4.20. Per glapi. --- src/mapi/mapi/entry_x86-64_tls.h | 13 +++++++++++++ src/mapi/mapi/entry_x86_tls.h | 13 +++++++++++++ 2 files changed, 26 insertions(+) diff --git a/src/mapi/mapi/entry_x86-64_tls.h b/src/mapi/mapi/entry_x86-64_tls.h index 2fbe73b5b32..cc3d5a8d7ea 100644 --- a/src/mapi/mapi/entry_x86-64_tls.h +++ b/src/mapi/mapi/entry_x86-64_tls.h @@ -30,6 +30,19 @@ #include "u_execmem.h" #include "u_macros.h" +#ifdef __linux__ +__asm__(".section .note.ABI-tag, \"a\"\n\t" + ".p2align 2\n\t" + ".long 1f - 0f\n\t" /* name length */ + ".long 3f - 2f\n\t" /* data length */ + ".long 1\n\t" /* note length */ + "0: .asciz \"GNU\"\n\t" /* vendor name */ + "1: .p2align 2\n\t" + "2: .long 0\n\t" /* note data: the ABI tag */ + ".long 2,4,20\n\t" /* Minimum kernel version w/TLS */ + "3: .p2align 2\n\t"); /* pad out section */ +#endif /* __linux__ */ + __asm__(".text"); __asm__("x86_64_current_tls:\n\t" diff --git a/src/mapi/mapi/entry_x86_tls.h b/src/mapi/mapi/entry_x86_tls.h index d4f7d98cf12..9a1f6e4ec4b 100644 --- a/src/mapi/mapi/entry_x86_tls.h +++ b/src/mapi/mapi/entry_x86_tls.h @@ -30,6 +30,19 @@ #include "u_execmem.h" #include "u_macros.h" +#ifdef __linux__ +__asm__(".section .note.ABI-tag, \"a\"\n\t" + ".p2align 2\n\t" + ".long 1f - 0f\n\t" /* name length */ + ".long 3f - 2f\n\t" /* data length */ + ".long 1\n\t" /* note length */ + "0: .asciz \"GNU\"\n\t" /* vendor name */ + "1: .p2align 2\n\t" + "2: .long 0\n\t" /* note data: the ABI tag */ + ".long 2,4,20\n\t" /* Minimum kernel version w/TLS */ + "3: .p2align 2\n\t"); /* pad out section */ +#endif /* __linux__ */ + __asm__(".text"); __asm__("x86_current_tls:\n\t" -- 2.30.2