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-rw-r--r--meta-agl-bsp/recipes-bsp/u-boot/u-boot-ota/0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch138
1 files changed, 138 insertions, 0 deletions
diff --git a/meta-agl-bsp/recipes-bsp/u-boot/u-boot-ota/0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch b/meta-agl-bsp/recipes-bsp/u-boot/u-boot-ota/0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch
new file mode 100644
index 000000000..7540b7467
--- /dev/null
+++ b/meta-agl-bsp/recipes-bsp/u-boot/u-boot-ota/0002-Replace-wraps-with-built-in-code-to-remove-dependenc.patch
@@ -0,0 +1,138 @@
+From ab0d7e270d89f6eb99582197d2d58bf60c9c3d26 Mon Sep 17 00:00:00 2001
+From: Anton Gerasimov <anton@advancedtelematic.com>
+Date: Thu, 15 Sep 2016 16:49:32 +0200
+Subject: [PATCH 2/2] Replace wraps with built-in code to remove dependency on
+ multilib
+
+---
+ arch/x86/config.mk | 2 --
+ arch/x86/lib/gcc.c | 104 ++++++++++++++++++++++++++++++++++++++++++++---------
+ 2 files changed, 87 insertions(+), 19 deletions(-)
+
+diff --git a/arch/x86/config.mk b/arch/x86/config.mk
+index 999143e..139576e 100644
+--- a/arch/x86/config.mk
++++ b/arch/x86/config.mk
+@@ -22,5 +22,3 @@ PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden
+ PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions -m elf_i386
+
+ LDFLAGS_FINAL += --gc-sections -pie
+-LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3
+-LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3
+diff --git a/arch/x86/lib/gcc.c b/arch/x86/lib/gcc.c
+index 497ad75..c321b11 100644
+--- a/arch/x86/lib/gcc.c
++++ b/arch/x86/lib/gcc.c
+@@ -19,22 +19,92 @@
+
+ #ifdef __GNUC__
+
+-/*
+- * GCC's libgcc handling is quite broken. While the libgcc functions
+- * are always regparm(0) the code that calls them uses whatever the
+- * compiler call specifies. Therefore we need a wrapper around those
+- * functions. See gcc bug PR41055 for more information.
+- */
+-#define WRAP_LIBGCC_CALL(type, name) \
+- type __normal_##name(type a, type b) __attribute__((regparm(0))); \
+- type __wrap_##name(type a, type b); \
+- type __attribute__((no_instrument_function)) \
+- __wrap_##name(type a, type b) \
+- { return __normal_##name(a, b); }
+-
+-WRAP_LIBGCC_CALL(long long, __divdi3)
+-WRAP_LIBGCC_CALL(unsigned long long, __udivdi3)
+-WRAP_LIBGCC_CALL(long long, __moddi3)
+-WRAP_LIBGCC_CALL(unsigned long long, __umoddi3)
++#include <stdint.h>
++#include <stddef.h>
++
++uint64_t __udivmoddi4 ( uint64_t num,
++ uint64_t den,
++ uint64_t *rem_p )
++{
++ uint64_t quot = 0, qbit = 1;
++
++ if ( den == 0 ) {
++ return 1/((unsigned)den); /* Intentional divide by zero, without
++ triggering a compiler warning which
++ would abort the build */
++ }
++
++ /* Left-justify denominator and count shift */
++ while ( (int64_t)den >= 0 ) {
++ den <<= 1;
++ qbit <<= 1;
++ }
++
++ while ( qbit ) {
++ if ( den <= num ) {
++ num -= den;
++ quot += qbit;
++ }
++ den >>= 1;
++ qbit >>= 1;
++ }
++
++ if ( rem_p )
++ *rem_p = num;
++
++ return quot;
++}
++uint64_t __udivdi3( uint64_t num, uint64_t den )
++{
++ return __udivmoddi4(num, den, NULL);
++}
++
++uint64_t __umoddi3 ( uint64_t num, uint64_t den )
++{
++ uint64_t v;
++
++ (void) __udivmoddi4(num, den, &v);
++ return v;
++}
++
++int64_t __divmoddi4 ( int64_t num,
++ int64_t den,
++ int64_t* rem_p )
++{
++ int minus = 0;
++ int64_t v;
++
++ if ( num < 0 ) {
++ num = -num;
++ minus = 1;
++ }
++ if ( den < 0 ) {
++ den = -den;
++ minus ^= 1;
++ }
++
++ v = __udivmoddi4(num, den, (uint64_t *)rem_p);
++ if ( minus ) {
++ v = -v;
++ if ( rem_p )
++ *rem_p = -(*rem_p);
++ }
++
++ return v;
++}
++
++
++int64_t __moddi3 (int64_t num, int64_t den)
++{
++ int64_t v;
++
++ (void) __divmoddi4(num, den, &v);
++ return v;
++}
++
++int64_t __divdi3(int64_t num, int64_t den)
++{
++ return __divmoddi4(num, den, NULL);
++}
+
+ #endif
+--
+2.9.3
+