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| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-11-13 12:31:00 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-11-13 12:31:00 +0100 |
| commit | 32ef09dd30bb2b8e1878afff755fc5b7000f24c7 (patch) | |
| tree | 127164554c6fa1c837a992a74b9aca030aff673b /Rules.mak | |
| parent | ea269ccbb222c6913cff6fc3ebc87cc945df53a8 (diff) | |
buildsys: check LDFLAGS through driver
We run the linker through the compiler-driver, so we have to check
linker flags through the driver, too.
Otherwise we might check $LD's flags while we will run $CC's linker
and those might be different beasts.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'Rules.mak')
| -rw-r--r-- | Rules.mak | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -201,7 +201,7 @@ check_as=$(shell \ if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \ then echo "-Wa,$(1)"; fi) check_ld=$(shell \ - if $(LD) $(1) -o /dev/null -b binary /dev/null > /dev/null 2>&1; \ + if $(CC) -Wl,$(1) $(CFLAG_-nostdlib) -o /dev/null -Wl,-b,binary /dev/null > /dev/null 2>&1; \ then echo "$(1)"; fi) # Use variable indirection here so that we can have variable @@ -252,6 +252,8 @@ endef ARFLAGS:=cr +# Note: The check for -nostdlib has to be before all calls to check_ld +$(eval $(call check-gcc-var,-nostdlib)) # Flags in OPTIMIZATION are used only for non-debug builds @@ -557,11 +559,11 @@ endif # well as the LD PIE flag (below) because we can't rely on # gcc passing -pie if we used -fPIE. We need to directly use -pie # instead of -Wl,-pie as gcc picks up the wrong startfile/endfile -$(eval $(call cache-output-var,LDPIEFLAG,$(LD) --help 2>/dev/null | grep -q -- -pie && echo "-pie")) +$(eval $(call cache-output-var,LDPIEFLAG,$(CC) -Wl$(comma)--help 2>/dev/null | grep -q -- -pie && echo "-pie")) # Check for --as-needed support in linker ifndef LD_FLAG_ASNEEDED -_LD_FLAG_ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -- --as-needed) +_LD_FLAG_ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -- --as-needed) ifneq ($(_LD_FLAG_ASNEEDED),) export LD_FLAG_ASNEEDED:=--as-needed endif @@ -585,7 +587,7 @@ link.asneeded = $(if $(findstring yy,$(CC_FLAG_ASNEEDED)$(CC_FLAG_NO_ASNEEDED)), # Check for AS_NEEDED support in linker script (binutils>=2.16.1 has it) ifndef ASNEEDED -export ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UCLIBC_LDSO) )" || echo "$(UCLIBC_LDSO)") +export ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -q -- --as-needed && echo "AS_NEEDED ( $(UCLIBC_LDSO) )" || echo "$(UCLIBC_LDSO)") # Only used in installed libc.so linker script ifeq ($(UCLIBC_HAS_BACKTRACE),y) @@ -594,7 +596,7 @@ UBACKTRACE_FULL_NAME := $(subst //,/,$(RUNTIME_PREFIX)$(MULTILIB_DIR)/$(UBACKTRA else UBACKTRACE_FULL_NAME := $(UBACKTRACE_DSO) endif -export UBACKTRACE_ASNEEDED:=$(shell $(LD) --help 2>/dev/null | grep -q -- --as-needed && \ +export UBACKTRACE_ASNEEDED:=$(shell $(CC) -Wl,--help 2>/dev/null | grep -q -- --as-needed && \ echo "GROUP ( AS_NEEDED ( $(UBACKTRACE_FULL_NAME) ) )" || \ echo "GROUP ( $(UBACKTRACE_FULL_NAME) )") else @@ -641,8 +643,6 @@ else SSP_CFLAGS := $(SSP_DISABLE_FLAGS) endif -$(eval $(call check-gcc-var,-nostdlib)) - # Collect all CFLAGS components CFLAGS := $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \ -nostdinc -I$(top_builddir)include \ |