search for: ld_image_base_opt

...eletions(-) diff --git a/Makefile b/Makefile index c99b962f..c8325154 100644 --- a/Makefile +++ b/Makefile @@ -27,6 +27,9 @@ export NM := $(KLIBCROSS)nm export OBJCOPY := $(KLIBCROSS)objcopy export OBJDUMP := $(KLIBCROSS)objdump +LLD := $(shell $(LD) --version 2>&1 | grep LLD) +export LD_IMAGE_BASE_OPT=$(if $(LLD),--image-base,-Ttext-segment) + NOSTDINC_FLAGS := -nostdlib -nostdinc -isystem $(shell $(CC) -print-file-name=include) ARCH := $(shell uname -m | sed -e s/i.86/i386/ \ diff --git a/usr/klibc/arch/i386/MCONFIG b/usr/klibc/arch/i386/MCONFIG index c7d3fccd..e6f50dde 100644 ---...

- Renamed IMAGE_BASE to LD_IMAGE_BASE_OPT. - Moved "-fcommon" to KLIBCREQFLAGS in scripts/Kbuild.klibc. - Remove "dash" warning fixes which have been upstreamed. - Conditionalize the inclusion of compiler flags by using the proper compiler name or "cc-option". - Added "-Werror" to "cc-option&q...

Use $(LD_IMAGE_BASE_OPT) instead of hardcoding --Ttext-segment, which lld does not support. This allows either --Ttext-segment or -image-base to be emitted based on the linker. Signed-off-by: Andrew Delgadillo <adelg at google.com> --- usr/klibc/arch/arm64/MCONFIG | 2 +- 1 file changed, 1 insertion(+), 1 deletion...

On Sat, 2020-07-25 at 17:47 +0100, Ben Hutchings wrote: > On Sun, 2020-03-29 at 04:38 -0700, Bill Wendling wrote: > > - Renamed IMAGE_BASE to LD_IMAGE_BASE_OPT. > > - Moved "-fcommon" to KLIBCREQFLAGS in scripts/Kbuild.klibc. > > - Remove "dash" warning fixes which have been upstreamed. > > - Conditionalize the inclusion of compiler flags by using the proper > > compiler name or "cc-option". > &gt...

...ion of the library # This address needs to be reachable using normal inter-module # calls, and work on the memory models for this architecture -# Normal binaries start at 1 MB; the linker wants 1 MB alignment, -# and call instructions have a 30-bit signed offset, << 2. -KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x80000000 +# 4862 MB - normal binaries start at 4608 MB. Non-PIC jumps usually +# use the BL instruction which requires a destination between -128M +# to 128M. Since we can't put ourselves below the normal load +# address, use the very top of the 128M region (minus 2MB) +KLIBCSHAREDFLAGS = $...

On Sun, 2020-03-29 at 04:38 -0700, Bill Wendling wrote: > - Renamed IMAGE_BASE to LD_IMAGE_BASE_OPT. > - Moved "-fcommon" to KLIBCREQFLAGS in scripts/Kbuild.klibc. > - Remove "dash" warning fixes which have been upstreamed. > - Conditionalize the inclusion of compiler flags by using the proper > compiler name or "cc-option". > - Added "-Werror&q...

On Sat, Jul 25, 2020 at 1:57 PM Ben Hutchings <ben at decadent.org.uk> wrote: > > On Sat, 2020-07-25 at 17:47 +0100, Ben Hutchings wrote: > > On Sun, 2020-03-29 at 04:38 -0700, Bill Wendling wrote: > > > - Renamed IMAGE_BASE to LD_IMAGE_BASE_OPT. > > > - Moved "-fcommon" to KLIBCREQFLAGS in scripts/Kbuild.klibc. > > > - Remove "dash" warning fixes which have been upstreamed. > > > - Conditionalize the inclusion of compiler flags by using the proper > > > compiler name or "cc-op...

...ccordingly. # -# We should get klibc.so and the executables to agree on what gp -# should be. For now, disable gp-relative addressing. -KLIBCLDFLAGS = --no-relax KLIBCOPTFLAGS += -Os -fomit-frame-pointer ifeq ($(DEBUG),y) KLIBCOPTFLAGS += -g @@ -21,3 +18,6 @@ KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x00200000 # Kernel has never used stack trampolines KLIBCEXECSTACK := n + +KLIBCEMAIN := -e _main +KLIBCCRTSHARED += $(KLIBCOBJ)/arch/riscv64/_main.o diff --git a/usr/klibc/arch/riscv64/_main.S b/usr/klibc/arch/riscv64/_main.S new file mode 100644 index 00000000..284a2222 --- /dev/n...

...d be. For now, disable gp-relative addressing. -KLIBCLDFLAGS = --no-relax KLIBCOPTFLAGS += -Os -fomit-frame-pointer ifeq ($(DEBUG),y) KLIBCOPTFLAGS += -g @@ -18,6 +15,10 @@ KLIBCBITSIZE = 64 # Normal binaries start at 64 KB, so start the libary at 2 MB. KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x00200000 +KLIBCSHAREDFLAGS += --defsym '__global_pointer$$=0' # Kernel has never used stack trampolines KLIBCEXECSTACK := n + +KLIBCEMAIN := -e _main +KLIBCCRTSHARED += $(KLIBCOBJ)/arch/riscv64/_main.o diff --git a/usr/klibc/arch/riscv64/_main.S b/usr/klibc/arch/riscv64/_m...

From: Stanislav Fomichev <sdf at google.com> Clang's lld prefers the use of "-image-base" instead of "-Ttext-segment". Signed-off-by: Stanislav Fomichev <sdf at google.com> Signed-off-by: Bill Wendling <morbo at google.com> --- Makefile | 3 +++ usr/klibc/arch/i386/MCONFIG | 2 +- usr/klibc/arch/mips64/MCONFIG | 2 +-

...rchitecture +# 4862 MB - normal binaries start at 4608 MB. Non-PIC jumps usually +# use the BL instruction which requires a destination between -128M +# to 128M. Since we can't put ourselves below the normal load +# address, use the very top of the 128M region (minus 2MB) +KLIBCSHAREDFLAGS = $(LD_IMAGE_BASE_OPT) 0x127E00000 + +# Kernel has never used stack trampolines +KLIBCEXECSTACK := n diff --git a/usr/klibc/arch/loongarch64/crt0.S b/usr/klibc/arch/loongarch64/crt0.S new file mode 100644 index 00000000..cb3da669 --- /dev/null +++ b/usr/klibc/arch/loongarch64/crt0.S @@ -0,0 +1,18 @@ +# +# arch/loonga...

This is a series of patches for clang compatibility: - Using flags needed flags and removing unsupported flags. - Adding support for clang's LLD linker. - Removing a variety of warnings. Bill Wendling (3): [klibc] Kbuild: use "libc.a" with clang [klibc] Kbuild: Add "-fcommon" for clang builds [klibc] Clean up clang warnings Michael Davidson (1): [klibc] Kbuild: