Accepting request 1172774 from home:gbelinassi:branches:Base:System
- ulp-prologue-into-asm-functions.patch: Avoid creating ULP prologue for _start routine (bsc#1221940 OBS-URL: https://build.opensuse.org/request/show/1172774 OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=708
This commit is contained in:
Andreas Schwab
Git OBS Bridge
parent
b08edd98b2
commit
833e55e71d
@ -16,6 +16,12 @@ Mon May 13 09:45:36 UTC 2024 - Andreas Schwab <schwab@suse.de>
|
||||
- nscd-netgroup-cache-timeout.patch: Use time_t for return type of
|
||||
addgetnetgrentX (CVE-2024-33602, bsc#1223425)
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed May 8 15:00:21 UTC 2024 - Giuliano Belinassi <giuliano.belinassi@suse.com>
|
||||
|
||||
- ulp-prologue-into-asm-functions.patch: Avoid creating ULP prologue
|
||||
for _start routine (bsc#1221940
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Wed May 8 10:42:39 UTC 2024 - Andreas Schwab <schwab@suse.de>
|
||||
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
From 3c0817dcbbc99eb438a33be5336db69cf88ca7cf Mon Sep 17 00:00:00 2001
|
||||
From ec4f0a28ed48c51165e3e72c7427efb0ae14a124 Mon Sep 17 00:00:00 2001
|
||||
From: Giuliano Belinassi <gbelinassi@suse.de>
|
||||
Date: Wed, 24 May 2023 18:03:15 -0300
|
||||
Date: Mon, 6 May 2024 20:09:55 -0300
|
||||
Subject: [PATCH] Add Userspace Livepatch prologue into ASM functions
|
||||
|
||||
Userspace Live Patching (ULP) refers to the process of applying
|
||||
@ -12,22 +12,22 @@ this have to be included manually. This patch does this.
|
||||
|
||||
Signed-off-by: Giuliano Belinassi <gbelinassi@suse.de>
|
||||
---
|
||||
Makeconfig | 5 +++++
|
||||
config.h.in | 3 +++
|
||||
Makeconfig | 5 +++
|
||||
config.h.in | 3 ++
|
||||
config.make.in | 1 +
|
||||
configure | 21 ++++++++++++++++++
|
||||
configure.ac | 13 +++++++++++
|
||||
sysdeps/x86_64/multiarch/strcmp-avx2.S | 5 +----
|
||||
sysdeps/x86_64/multiarch/strcmp-evex.S | 5 +----
|
||||
sysdeps/x86_64/multiarch/strcmp-sse4_2.S | 5 +----
|
||||
sysdeps/x86_64/sysdep.h | 28 ++++++++++++++++++++----
|
||||
9 files changed, 70 insertions(+), 16 deletions(-)
|
||||
configure | 21 +++++++++
|
||||
configure.ac | 13 ++++++
|
||||
sysdeps/x86_64/multiarch/strcmp-avx2.S | 5 +--
|
||||
sysdeps/x86_64/multiarch/strcmp-evex.S | 5 +--
|
||||
sysdeps/x86_64/multiarch/strcmp-sse4_2.S | 5 +--
|
||||
sysdeps/x86_64/sysdep.h | 54 ++++++++++++++++++++++--
|
||||
9 files changed, 96 insertions(+), 16 deletions(-)
|
||||
|
||||
diff --git a/Makeconfig b/Makeconfig
|
||||
index 85e00cef94..502e4e2d89 100644
|
||||
index e583765712..b136e10224 100644
|
||||
--- a/Makeconfig
|
||||
+++ b/Makeconfig
|
||||
@@ -979,6 +979,11 @@ else
|
||||
@@ -981,6 +981,11 @@ else
|
||||
+cflags += $(no-fortify-source)
|
||||
endif
|
||||
|
||||
@ -40,10 +40,10 @@ index 85e00cef94..502e4e2d89 100644
|
||||
# used to compile and will be installed. Each can also contain an
|
||||
# include/ subdirectory, whose header files will be used to compile
|
||||
diff --git a/config.h.in b/config.h.in
|
||||
index 44a34072a4..430627dcaf 100644
|
||||
index c4cc7d3b9a..dc70ed03d0 100644
|
||||
--- a/config.h.in
|
||||
+++ b/config.h.in
|
||||
@@ -199,6 +199,9 @@
|
||||
@@ -205,6 +205,9 @@
|
||||
/* Define to 1 if libpthread actually resides in libc. */
|
||||
#define PTHREAD_IN_LIBC 0
|
||||
|
||||
@ -66,7 +66,7 @@ index 55e8b7563b..0f14c05d62 100644
|
||||
build-profile = @profile@
|
||||
build-static-nss = @static_nss@
|
||||
diff --git a/configure b/configure
|
||||
index 59ff1e415d..69c0795f99 100755
|
||||
index 432e40a592..eb6b203925 100755
|
||||
--- a/configure
|
||||
+++ b/configure
|
||||
@@ -622,6 +622,7 @@ LIBOBJS
|
||||
@ -94,7 +94,7 @@ index 59ff1e415d..69c0795f99 100755
|
||||
|
||||
Optional Packages:
|
||||
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
|
||||
@@ -7864,6 +7868,23 @@ libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
|
||||
@@ -7867,6 +7871,23 @@ libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
|
||||
|
||||
|
||||
|
||||
@ -119,10 +119,10 @@ index 59ff1e415d..69c0795f99 100755
|
||||
RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h`
|
||||
|
||||
diff --git a/configure.ac b/configure.ac
|
||||
index 65799e5685..e792f8c866 100644
|
||||
index bdc385d03c..cb4d28b3d8 100644
|
||||
--- a/configure.ac
|
||||
+++ b/configure.ac
|
||||
@@ -1753,6 +1753,19 @@ AC_SUBST(DEFINES)
|
||||
@@ -1756,6 +1756,19 @@ AC_SUBST(DEFINES)
|
||||
dnl See sysdeps/mach/configure.ac for this variable.
|
||||
AC_SUBST(mach_interface_list)
|
||||
|
||||
@ -191,10 +191,10 @@ index 4e98da0246..2a2280c65f 100644
|
||||
/*
|
||||
* This implementation uses SSE to compare up to 16 bytes at a time.
|
||||
diff --git a/sysdeps/x86_64/sysdep.h b/sysdeps/x86_64/sysdep.h
|
||||
index db6e36b2dd..37136d8ca9 100644
|
||||
index db6e36b2dd..86a5d1b2be 100644
|
||||
--- a/sysdeps/x86_64/sysdep.h
|
||||
+++ b/sysdeps/x86_64/sysdep.h
|
||||
@@ -49,6 +49,20 @@ enum cf_protection_level
|
||||
@@ -49,6 +49,46 @@ enum cf_protection_level
|
||||
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
@ -203,29 +203,55 @@ index db6e36b2dd..37136d8ca9 100644
|
||||
+ written in ASM, the way we do this is by adding this prologue manually. */
|
||||
+
|
||||
+#if ENABLE_USERSPACE_LIVEPATCH
|
||||
+# define ULP_PRE_PROLOGUE \
|
||||
+ .rept 14; nop; .endr
|
||||
+# define ULP_POST_PROLOGUE \
|
||||
+ xchg %ax, %ax
|
||||
+
|
||||
+/* Instructions to be inserted before the function label. */
|
||||
+# define ULP_NOPS_PRE_PROLOGUE .rept 14; nop; .endr
|
||||
+
|
||||
+/* Instruction to be inserted after the function label. */
|
||||
+# define ULP_NOPS_POST_PROLOGUE .rept 2; nop; .endr
|
||||
+
|
||||
+
|
||||
+/* this macro expands according to the following condition:
|
||||
+ * if name = _start, then the prologue is not inserted.
|
||||
+ * if name = _dl_relocate_static_pie, then the prologue is not inserted.
|
||||
+ * if name = anything else, then the prologue is inserted.
|
||||
+ **/
|
||||
+# define __ULP_POST_PROLOGUE_dl_relocate_static_pie ,
|
||||
+# define __ULP_PRE_PROLOGUE_start ,
|
||||
+# define __ULP_PRE_PROLOGUE(x, y,...) y
|
||||
+# define _ULP_PRE_PROLOGUE(x, ...) __ULP_PRE_PROLOGUE(x, __VA_ARGS__)
|
||||
+# define ULP_PRE_PROLOGUE(name) _ULP_PRE_PROLOGUE(__ULP_PRE_PROLOGUE##name, ULP_NOPS_PRE_PROLOGUE,)
|
||||
+
|
||||
+/* this macro expands according to the following condition:
|
||||
+ * if name = _start, then the postlogue is not inserted.
|
||||
+ * if name = _dl_relocate_static_pie, then the postlogue is not inserted.
|
||||
+ * if name = anything else, then the postlogue is inserted.
|
||||
+ **/
|
||||
+# define __ULP_POST_PROLOGUE_dl_relocate_static_pie ,
|
||||
+# define __ULP_POST_PROLOGUE_start ,
|
||||
+# define __ULP_POST_PROLOGUE(x, y,...) y
|
||||
+# define _ULP_POST_PROLOGUE(x, ...) __ULP_POST_PROLOGUE(x, __VA_ARGS__)
|
||||
+# define ULP_POST_PROLOGUE(name) _ULP_POST_PROLOGUE(__ULP_POST_PROLOGUE##name, ULP_NOPS_POST_PROLOGUE,)
|
||||
+
|
||||
+#else
|
||||
+# define ULP_PRE_PROLOGUE
|
||||
+# define ULP_POST_PROLOGUE
|
||||
+# define ULP_PRE_PROLOGUE(name)
|
||||
+# define ULP_POST_PROLOGUE(name)
|
||||
+#endif
|
||||
+
|
||||
/* Syntactic details of assembler. */
|
||||
|
||||
#ifdef _CET_ENDBR
|
||||
@@ -58,15 +72,21 @@ enum cf_protection_level
|
||||
@@ -58,15 +98,21 @@ enum cf_protection_level
|
||||
# define _CET_NOTRACK
|
||||
#endif
|
||||
|
||||
+/* Define the first instructions of a function. */
|
||||
+#define FUNCTION_START(name) \
|
||||
+ ULP_PRE_PROLOGUE; \
|
||||
+ ULP_PRE_PROLOGUE(name); \
|
||||
+ C_LABEL(name); \
|
||||
+ cfi_startproc; \
|
||||
+ _CET_ENDBR; \
|
||||
+ ULP_POST_PROLOGUE; \
|
||||
+ ULP_POST_PROLOGUE(name); \
|
||||
+ CALL_MCOUNT;
|
||||
+
|
||||
/* Define an entry point visible from C. */
|
||||
@ -242,5 +268,5 @@ index db6e36b2dd..37136d8ca9 100644
|
||||
/* This macro is for setting proper CFI with DW_CFA_expression describing
|
||||
the register as saved relative to %rsp instead of relative to the CFA.
|
||||
--
|
||||
2.43.0
|
||||
2.44.0
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user