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| author | Mischa Jonker <mischa.jonker@synopsys.com> | 2013-05-02 09:51:29 +0000 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2013-05-04 23:21:31 +0200 |
| commit | a6e6bf3ef63781579784f6c31f6f5d8d374e0f64 (patch) | |
| tree | c1c4c1ebfa13113e2152ebbcd86d63a73606c760 /toolchain/uClibc | |
| parent | 5de23bf875e34fd89eff5b9472ab501c2992b6b1 (diff) | |
| download | buildroot-novena-a6e6bf3ef63781579784f6c31f6f5d8d374e0f64.tar.gz buildroot-novena-a6e6bf3ef63781579784f6c31f6f5d8d374e0f64.zip | |
arc: Make sure that libgcc doesn't get included when it doesn't exist yet
For ARC, libgcc is always included, even when -nostdlib is given. This is
related to some small pieces of code that are not always generated by the
compiler; a call to libgcc is used in those cases instead.
During the initial stages of building the toolchain, this is a problem, as
libgcc does not exist yet. The ARC compiler supports -really-nostdlib to
override the default behavior.
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Diffstat (limited to 'toolchain/uClibc')
| -rw-r--r-- | toolchain/uClibc/uclibc.mk | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/toolchain/uClibc/uclibc.mk b/toolchain/uClibc/uclibc.mk index 1629e7625..d4f1d4cdf 100644 --- a/toolchain/uClibc/uclibc.mk +++ b/toolchain/uClibc/uclibc.mk @@ -404,6 +404,17 @@ ifeq ($(BR2_CCACHE),y) $(UCLIBC_DIR)/.config: | host-ccache endif +# For ARC, libgcc is always included, even when -nostdlib is given. This +# is related to some small pieces of code that are not always generated +# by the compiler; a call to libgcc is used in those cases instead. +# +# During the initial stages of building the toolchain, this is a problem, +# as libgcc does not exist yet. The ARC compiler supports -really-nostdlib +# to override the default behavior. +ifeq ($(BR2_arc),y) +REALLY_NOSTDLIB=-really-nostdlib +endif + $(UCLIBC_DIR)/.configured: $(LINUX_HEADERS_DIR)/.configured $(UCLIBC_DIR)/.config $(Q)$(call MESSAGE,"Installing uClibc headers") $(MAKE1) -C $(UCLIBC_DIR) \ @@ -422,8 +433,8 @@ $(UCLIBC_DIR)/.configured: $(LINUX_HEADERS_DIR)/.configured $(UCLIBC_DIR)/.confi cp -pLR $(LINUX_HEADERS_DIR)/include/* \ $(TOOLCHAIN_DIR)/uClibc_dev/usr/include/; \ fi - $(TARGET_CROSS)gcc -nostdlib -nostartfiles -shared -x c /dev/null -o $(TOOLCHAIN_DIR)/uClibc_dev/usr/lib/libc.so - $(TARGET_CROSS)gcc -nostdlib -nostartfiles -shared -x c /dev/null -o $(TOOLCHAIN_DIR)/uClibc_dev/usr/lib/libm.so + $(TARGET_CROSS)gcc -nostdlib $(REALLY_NOSTDLIB) -nostartfiles -shared -x c /dev/null -o $(TOOLCHAIN_DIR)/uClibc_dev/usr/lib/libc.so + $(TARGET_CROSS)gcc -nostdlib $(REALLY_NOSTDLIB) -nostartfiles -shared -x c /dev/null -o $(TOOLCHAIN_DIR)/uClibc_dev/usr/lib/libm.so cp -pLR $(UCLIBC_DIR)/lib/crt[1in].o $(TOOLCHAIN_DIR)/uClibc_dev/usr/lib/ touch $@ |