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Makefile: Fix linking with modern binutils

PATCH New Andreas Färber 3 participants 3 messages Apr 9, 2017 – Apr 10, 2017 Kbuild

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#0 lore raw

PATCH v3 1/1 Makefile: Fix linking with modern binutils

From: Joel Stanley <[email protected]>

Since Binutils 1a9ccd70f9a7[1] u-boot will not link targets that set CONFIG_SYS_TEXT_BASE=0 with the following error:

LD u-boot
arm-linux-gnueabi-ld.bfd: u-boot: Not enough room for program headers, try
linking with -N
arm-linux-gnueabi-ld.bfd: final link failed: Bad value

The issue can be reproduced with the bad binutils and the rock2_defconfig target.

This issue was also encountered by the powerpc kernel[2], with the fix being to pass --no-dynamic-linker for linkers newer than 2.26 when this flag was introduced. The option tells ld that the PIE or shared lib does not need loaded program headers.

Ubuntu Zesty's Binutils 2.27.51.20161202 hits this error.

[1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=1a9ccd70f9a7
[2] https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=ff45000fcb56b5b0f1a14a865d3541746d838a0a

[AF: Apply to LDFLAGS_$(SPL_BIN) as well, suggested by Tom Rini]
---
 Makefile             | 4 ++++
 scripts/Makefile.spl | 4 ++++
 2 files changed, 8 insertions(+)
Makefile +4 -0
index ca7d60d..09b597d 100644
@@ -805,6 +805,10 @@ ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 endif
 
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
+
+# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
+LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
+
 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 endif
scripts/Makefile.spl +4 -0
index 760acee..eb24292 100644
@@ -291,6 +291,10 @@ $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
 	$(call if_changed,objcopy)
 
 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
+
+# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
+LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
+
 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 endif
Signature · 1 line
2.10.2
#1 lore raw

PATCH v3 1/1 Makefile: Fix linking with modern binutils

Quoted 13 lines · Andreas Färber

From: Joel Stanley <[email protected]>

Since Binutils 1a9ccd70f9a7[1] u-boot will not link targets that set CONFIG_SYS_TEXT_BASE=0 with the following error:

LD u-boot
arm-linux-gnueabi-ld.bfd: u-boot: Not enough room for program headers, try
linking with -N
arm-linux-gnueabi-ld.bfd: final link failed: Bad value

The issue can be reproduced with the bad binutils and the rock2_defconfig target.

Quoted 6 lines

This issue was also encountered by the powerpc kernel[2], with the fix being to pass --no-dynamic-linker for linkers newer than 2.26 when this flag was introduced. The option tells ld that the PIE or shared lib does not need loaded program headers.

Ubuntu Zesty's Binutils 2.27.51.20161202 hits this error.

Also been hitting this with Debian's cross-toolchains (currently binutils 2.28-3), but only when cross-building the firefly-rk3288 with binutils-arm-linux-gnueabihf target. Other targets build fine...

This patch does appear to fix or workaround the issue for me, though, thanks!

live well,
vagrant

Quoted 31 lines

[1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=1a9ccd70f9a7
[2] https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=ff45000fcb56b5b0f1a14a865d3541746d838a0a

[AF: Apply to LDFLAGS_$(SPL_BIN) as well, suggested by Tom Rini]
---
 Makefile             | 4 ++++
 scripts/Makefile.spl | 4 ++++
 2 files changed, 8 insertions(+)
Makefile +4 -0
index ca7d60d..09b597d 100644
@@ -805,6 +805,10 @@ ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 endif
 
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
+
+# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
+LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
+
 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 endif
scripts/Makefile.spl +0 -0
index 760acee..eb24292 100644

scripts/Makefile.spl $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE · line 300

Quoted 10 lines
scripts/Makefile.spl +4 -0
@@ -291,6 +291,10 @@ $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
 	$(call if_changed,objcopy)
 
 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
+
+# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
+LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
+
 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 endif

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#2 lore raw

PATCH v3 1/1 Makefile: Fix linking with modern binutils

In reply to Andreas Färber
Quoted 18 lines · Andreas Färber

From: Joel Stanley <[email protected]>

Since Binutils 1a9ccd70f9a7[1] u-boot will not link targets that set CONFIG_SYS_TEXT_BASE=0 with the following error:

LD u-boot
arm-linux-gnueabi-ld.bfd: u-boot: Not enough room for program headers, try
linking with -N
arm-linux-gnueabi-ld.bfd: final link failed: Bad value

The issue can be reproduced with the bad binutils and the rock2_defconfig target.

This issue was also encountered by the powerpc kernel[2], with the fix being to pass --no-dynamic-linker for linkers newer than 2.26 when this flag was introduced. The option tells ld that the PIE or shared lib does not need loaded program headers.

Quoted 8 lines

Ubuntu Zesty's Binutils 2.27.51.20161202 hits this error.

[1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=1a9ccd70f9a7
[2] https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=ff45000fcb56b5b0f1a14a865d3541746d838a0a

[AF: Apply to LDFLAGS_$(SPL_BIN) as well, suggested by Tom Rini]

Applied to u-boot/master, thanks!

Signature · 8 lines
Tom
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