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GNU Binutils with patches for OS216


ファイル情報

Rev. c4df5bbeb87a445dbc84b9ed677b2c721e5051b5
サイズ 1,331 バイト
日時 2020-07-04 04:03:47
作者 Sebastian Huber
ログメッセージ

sim/igen: Fix linker error with -fno-common

GCC 10 enables -fno-common by default. This resulted in multiple
definition linker errors since a global variable was declared and
defined in a header file:

ld: libsim.a(idecode.o):sim/v850/idecode.h:71: multiple definition of
idecode_issue'; libsim.a(irun.o):sim/v850/idecode.h:71: first defined
here
ld: libsim.a(engine.o):sim/v850/idecode.h:71: multiple definition of
idecode_issue'; libsim.a(irun.o):sim/v850/idecode.h:71: first defined
here
ld: libsim.a(support.o):sim/v850/idecode.h:71: multiple definition of
idecode_issue'; libsim.a(irun.o):sim/v850/idecode.h:71: first defined
here
ld: libsim.a(semantics.o):sim/v850/idecode.h:71: multiple definition
of idecode_issue'; libsim.a(irun.o):sim/v850/idecode.h:71: first
defined here

sim/igen

PR sim/26194

* lf.h (lf_get_file_type): Declare.
* lf.c (lf_get_file_type): Define.
* gen-idecode.c (print_idecode_issue_function_header): Use
lf_get_file_type() to issue an extern variable declaration in
case of header files.

内容

# The -mdynamic-no-pic ensures that the compiler executable is built without
# position-independent-code -- the usual default on Darwin. This fix speeds
# compiles by 3-5%.  Don't add it if the compiler doesn't also support
# -mno-dynamic-no-pic to undo it.
DARWIN_MDYNAMIC_NO_PIC := \
`case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
   $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
   && echo -mdynamic-no-pic ;; esac`
DARWIN_GCC_MDYNAMIC_NO_PIC := \
`case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
   $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
   || echo -mdynamic-no-pic ;; esac`

# ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for
# gcc components, since it is incompatible with our pch implementation.
DARWIN_NO_PIE := `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`

BOOT_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
BOOT_LDFLAGS += $(DARWIN_NO_PIE)

# Similarly, for cross-compilation.
STAGE1_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
STAGE1_LDFLAGS += $(DARWIN_NO_PIE)

# Without -mno-dynamic-no-pic support, add -mdynamic-no-pic just to later
# stages when we know it is built with gcc.
STAGE2_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
STAGE3_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
STAGE4_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)