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fiasco: fix compilation with GCC 6

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Issue #2372
This commit is contained in:
Christian Prochaska 2017-04-25 15:35:37 +02:00 committed by Christian Helmuth
parent 9a6c194432
commit 623e0be0e1
4 changed files with 248 additions and 3 deletions
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4
repos/base-fiasco/lib/mk/kernel-fiasco.inc
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@ -20,7 +20,9 @@ $(FIASCO_BUILD_DIR):
$(FIASCO): $(FIASCO_BUILD_DIR)
$(VERBOSE_MK) set -o pipefail; \
MAKEFLAGS= $(MAKE) SYSTEM_TARGET="$(CROSS_DEV_PREFIX)" \
MAKEFLAGS= CFLAGS="-std=gnu89" \
CXXFLAGS="-std=gnu++98 -fno-delete-null-pointer-checks" \
$(MAKE) SYSTEM_TARGET="$(CROSS_DEV_PREFIX)" \
$(VERBOSE_DIR) -C $(FIASCO_BUILD_DIR) \
$(KERNEL_BUILD_OUTPUT_FILTER)

3
repos/base-fiasco/lib/mk/l4_pkg.inc
View File

@ -55,7 +55,8 @@ endif
%.tag:
$(VERBOSE_MK) set -o pipefail; \
MAKEFLAGS= CPPFLAGS="$(CC_MARCH)" \
CFLAGS="$(CC_MARCH)" CXXFLAGS="$(CC_MARCH) -D_GNU_SOURCE" \
CFLAGS="$(CC_MARCH) -std=gnu89" \
CXXFLAGS="$(CC_MARCH) -D_GNU_SOURCE -std=gnu++98" \
ASFLAGS="$(CC_MARCH)" LDFLAGS="$(LD_MARCH)" \
$(MAKE) $(VERBOSE_DIR) O=$(L4_BUILD_DIR) $(L4_VERBOSE) \
-C $(L4_PKG_DIR)/$* \

242
repos/base-fiasco/patches/gcc6.patch Normal file
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@ -0,0 +1,242 @@
gcc6.patch
From: Christian Prochaska <christian.prochaska@genode-labs.com>
---
fiasco/snapshot/kernel/fiasco/src/Makeconf | 4 +-
.../snapshot/kernel/fiasco/src/kern/shared/gdt.cpp | 10 +++--
.../kernel/fiasco/src/kern/shared/kdb_ke.cpp | 9 ++--
fiasco/snapshot/l4/pkg/crtx/lib/src/construction.c | 44 ++++++++++----------
.../snapshot/l4/pkg/cxx/lib/start/src/cxx_main.cc | 6 +--
5 files changed, 38 insertions(+), 35 deletions(-)
diff --git fiasco/snapshot/kernel/fiasco/src/Makeconf fiasco/snapshot/kernel/fiasco/src/Makeconf
index 07401e1..daee531 100644
--- fiasco/snapshot/kernel/fiasco/src/Makeconf
+++ fiasco/snapshot/kernel/fiasco/src/Makeconf
@@ -28,8 +28,8 @@ ECHO := echo
ECHO_E := bash --norc -c 'echo -e "$$0" "$$@"'
CP := cp
AWKP ?= gawk --posix
-CFLAGS :=
-CXXFLAGS :=
+CFLAGS := $(CFLAGS)
+CXXFLAGS := $(CXXFLAGS)
OPT_CFLAGS := -O2
OPT_CXXFLAGS := -O2
NOOPT_CFLAGS := -Os
diff --git fiasco/snapshot/kernel/fiasco/src/kern/shared/gdt.cpp fiasco/snapshot/kernel/fiasco/src/kern/shared/gdt.cpp
index 2113170..d0eafd0 100644
--- fiasco/snapshot/kernel/fiasco/src/kern/shared/gdt.cpp
+++ fiasco/snapshot/kernel/fiasco/src/kern/shared/gdt.cpp
@@ -43,9 +43,6 @@ public:
Selector_user = 0x03,
Selector_kernel = 0x00,
};
-
-private:
- Gdt_entry _entries[];
};
@@ -130,6 +127,7 @@ void
Gdt::set_entry_byte(int nr, Address base, Unsigned32 limit,
Unsigned8 access, Unsigned8 szbits)
{
+ Gdt_entry *_entries = reinterpret_cast<Gdt_entry*>(this);
_entries[nr] = Gdt_entry(base, limit, access, szbits);
}
@@ -138,6 +136,7 @@ void
Gdt::set_entry_4k(int nr, Address base, Unsigned32 limit,
Unsigned8 access, Unsigned8 szbits)
{
+ Gdt_entry *_entries = reinterpret_cast<Gdt_entry*>(this);
_entries[nr] = Gdt_entry(base, limit >> 12, access, szbits | 0x08);
}
@@ -145,6 +144,7 @@ PUBLIC inline
void
Gdt::set_raw(int nr, Unsigned32 low, Unsigned32 high)
{
+ Gdt_entry *_entries = reinterpret_cast<Gdt_entry*>(this);
_entries[nr].set_raw(low, high);
}
@@ -152,6 +152,7 @@ PUBLIC inline
void
Gdt::set_raw(int nr, Unsigned64 val)
{
+ Gdt_entry *_entries = reinterpret_cast<Gdt_entry*>(this);
_entries[nr].set_raw(val);
}
@@ -159,6 +160,7 @@ PUBLIC inline
void
Gdt::get_raw(int nr, Unsigned32 *low, Unsigned32 *high)
{
+ Gdt_entry *_entries = reinterpret_cast<Gdt_entry*>(this);
_entries[nr].get_raw(low, high);
}
@@ -173,7 +175,7 @@ PUBLIC inline
Gdt_entry*
Gdt::entries()
{
- return _entries;
+ return reinterpret_cast<Gdt_entry*>(this);
}
diff --git fiasco/snapshot/kernel/fiasco/src/kern/shared/kdb_ke.cpp fiasco/snapshot/kernel/fiasco/src/kern/shared/kdb_ke.cpp
index 77a51aa..9978b3b 100644
--- fiasco/snapshot/kernel/fiasco/src/kern/shared/kdb_ke.cpp
+++ fiasco/snapshot/kernel/fiasco/src/kern/shared/kdb_ke.cpp
@@ -1,15 +1,16 @@
INTERFACE [ia32,ux,amd64]:
#define kdb_ke(msg) \
- asm ("int3 \n\t" \
+ asm volatile ("int3 \n\t" \
"jmp 1f \n\t" \
".ascii " #msg " \n\t" \
- "1: \n\t");
+ "1: \n\t" \
+ : : : "memory");
#define kdb_ke_sequence(msg) \
- asm ("int3 \n\t" \
+ asm volatile ("int3 \n\t" \
"jmp 1f \n\t" \
".ascii \"*##\" \n\t" \
"1: \n\t" \
- : : "a"(msg));
+ : : "a"(msg) : "memory");
diff --git fiasco/snapshot/l4/pkg/crtx/lib/src/construction.c fiasco/snapshot/l4/pkg/crtx/lib/src/construction.c
index 17e8b99..9020245 100644
--- fiasco/snapshot/l4/pkg/crtx/lib/src/construction.c
+++ fiasco/snapshot/l4/pkg/crtx/lib/src/construction.c
@@ -7,8 +7,8 @@
int __cxa_atexit(void (*function)(void *), void *arg, void *dso_handle);
-#define BEG { (crt0_hook) ~1U }
-#define END { (crt0_hook) 0 }
+#define BEG (crt0_hook) ~1U
+#define END (crt0_hook) 0
// make sure that unused symbols are not discarded
#if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ >= 4
@@ -19,22 +19,22 @@ int __cxa_atexit(void (*function)(void *), void *arg, void *dso_handle);
typedef void (*const crt0_hook)(void);
-static crt0_hook __L4DDE_CTOR_BEG__[1] SECTION(".mark_beg_l4dde_ctors") = BEG;
-static crt0_hook __L4DDE_CTOR_END__[1] SECTION(".mark_end_l4dde_ctors") = END;
-static crt0_hook __CTOR_BEG__[1] SECTION(".mark_beg_ctors") = BEG;
-static crt0_hook __CTOR_END__[1] SECTION(".mark_end_ctors") = END;
-static crt0_hook __C_CTOR_BEG__[1] SECTION(".mark_beg_c_ctors") = BEG;
-static crt0_hook __C_CTOR_END__[1] SECTION(".mark_end_c_ctors") = END;
-static crt0_hook __DTOR_BEG__[1] SECTION(".mark_beg_dtors") = BEG;
-static crt0_hook __DTOR_END__[1] SECTION(".mark_end_dtors") = END;
-static crt0_hook __C_SYS_DTOR_BEG__[1] SECTION(".mark_beg_c_sys_dtors") = BEG;
-static crt0_hook __C_SYS_DTOR_END__[1] SECTION(".mark_end_c_sys_dtors") = END;
-static crt0_hook __C_DTOR_BEG__[1] SECTION(".mark_beg_c_dtors") = BEG;
-static crt0_hook __C_DTOR_END__[1] SECTION(".mark_end_c_dtors") = END;
+static crt0_hook __L4DDE_CTOR_BEG__ SECTION(".mark_beg_l4dde_ctors") = BEG;
+static crt0_hook __L4DDE_CTOR_END__ SECTION(".mark_end_l4dde_ctors") = END;
+static crt0_hook __CTOR_BEG__ SECTION(".mark_beg_ctors") = BEG;
+static crt0_hook __CTOR_END__ SECTION(".mark_end_ctors") = END;
+static crt0_hook __C_CTOR_BEG__ SECTION(".mark_beg_c_ctors") = BEG;
+static crt0_hook __C_CTOR_END__ SECTION(".mark_end_c_ctors") = END;
+static crt0_hook __DTOR_BEG__ SECTION(".mark_beg_dtors") = BEG;
+static crt0_hook __DTOR_END__ SECTION(".mark_end_dtors") = END;
+static crt0_hook __C_SYS_DTOR_BEG__ SECTION(".mark_beg_c_sys_dtors") = BEG;
+static crt0_hook __C_SYS_DTOR_END__ SECTION(".mark_end_c_sys_dtors") = END;
+static crt0_hook __C_DTOR_BEG__ SECTION(".mark_beg_c_dtors") = BEG;
+static crt0_hook __C_DTOR_END__ SECTION(".mark_end_c_dtors") = END;
static void
-run_hooks_forward(crt0_hook list[], const char *name)
+run_hooks_forward(crt0_hook *list, const char *name)
{
#ifdef DEBUG
outstring("list (forward) ");
@@ -57,7 +57,7 @@ run_hooks_forward(crt0_hook list[], const char *name)
}
static void
-run_hooks_backward(crt0_hook list[], const char *name)
+run_hooks_backward(crt0_hook *list, const char *name)
{
#ifdef DEBUG
outstring("list (backward) ");
@@ -83,11 +83,11 @@ static void
static_construction(void)
{
/* call constructors made with L4_C_CTOR */
- run_hooks_forward(__C_CTOR_BEG__, "__C_CTOR_BEG__");
+ run_hooks_forward(&__C_CTOR_BEG__, "__C_CTOR_BEG__");
/* call constructors made with __attribute__((constructor))
* and static C++ constructors */
- run_hooks_backward(__CTOR_END__, "__CTOR_END__");
+ run_hooks_backward(&__CTOR_END__, "__CTOR_END__");
}
static void
@@ -95,17 +95,17 @@ static_destruction(void *x __attribute__((unused)))
{
/* call destructors made with __attribute__((destructor))
* and static C++ destructors */
- run_hooks_forward(__DTOR_BEG__, "__DTOR_BEG__");
+ run_hooks_forward(&__DTOR_BEG__, "__DTOR_BEG__");
/* call destructors made with L4_C_DTOR except system destructors */
- run_hooks_backward(__C_DTOR_END__, "__C_DTOR_END__");
+ run_hooks_backward(&__C_DTOR_END__, "__C_DTOR_END__");
}
/* call system destructors */
void
crt0_sys_destruction(void)
{
- run_hooks_forward(__C_SYS_DTOR_BEG__, "__C_SYS_DTOR_BEG__");
+ run_hooks_forward(&__C_SYS_DTOR_BEG__, "__C_SYS_DTOR_BEG__");
}
extern void *__dso_handle __attribute__((weak));
@@ -121,7 +121,7 @@ crt0_construction(void)
void
crt0_dde_construction(void)
{
- run_hooks_forward(__L4DDE_CTOR_BEG__, "__L4DDE_CTOR_BEG__");
+ run_hooks_forward(&__L4DDE_CTOR_BEG__, "__L4DDE_CTOR_BEG__");
}
asm (".hidden _init");
diff --git fiasco/snapshot/l4/pkg/cxx/lib/start/src/cxx_main.cc fiasco/snapshot/l4/pkg/cxx/lib/start/src/cxx_main.cc
index e202139..22e8ddb 100644
--- fiasco/snapshot/l4/pkg/cxx/lib/start/src/cxx_main.cc
+++ fiasco/snapshot/l4/pkg/cxx/lib/start/src/cxx_main.cc
@@ -13,14 +13,14 @@
#include "cxx_atexit.h"
-extern L4::MainThread *main;
+extern L4::MainThread *main_thread;
extern "C"
void __main()
{
crt0_construction();
- if(main)
- main->run();
+ if(main_thread)
+ main_thread->run();
__cxa_finalize(0);
crt0_sys_destruction();
l4_sleep_forever();

2
repos/base-fiasco/ports/fiasco.hash
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@ -1 +1 @@
7df3c35beaecb0915782bb9d572e2ee973d572c6
fbf9086843359c2f94b5e0a9891abfc51dc3dbe6