WIP BROKEN Attempt to build memtest_shared with LTO: works for the static build but not the dynamic build.
This commit is contained in:
Lionel Debroux
parent
e99ce97648
commit
ce62772c3f
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@ -38,7 +38,7 @@ startup32:
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# Save the boot params pointer.
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movl %esi, (boot_params_addr - startup32)(%ebx)
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movl %esi, (boot_params_addr_ - startup32)(%ebx)
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# Use the startup stack until we pick the correct one.
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@ -46,21 +46,21 @@ startup32:
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# Initialise the pml4 and pdp tables.
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leal (pml4 - startup32)(%ebx), %ecx
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leal (pdp - startup32)(%ebx), %edx
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leal (pml4_ - startup32)(%ebx), %ecx
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leal (pdp_ - startup32)(%ebx), %edx
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movl %edx, %eax
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addl $0x3, %eax
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movl %eax, 0(%ecx)
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leal (pd0 - startup32)(%ebx), %eax
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leal (pd0_ - startup32)(%ebx), %eax
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addl $0x3, %eax
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movl %eax, 0(%edx)
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leal (pd1 - startup32)(%ebx), %eax
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leal (pd1_ - startup32)(%ebx), %eax
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addl $0x3, %eax
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movl %eax, 8(%edx)
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leal (pd2 - startup32)(%ebx), %eax
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leal (pd2_ - startup32)(%ebx), %eax
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addl $0x3, %eax
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movl %eax, 16(%edx)
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leal (pd3 - startup32)(%ebx), %eax
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leal (pd3_ - startup32)(%ebx), %eax
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addl $0x3, %eax
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movl %eax, 24(%edx)
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@ -122,7 +122,7 @@ startup64:
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# Save the boot params pointer.
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movq %rsi, boot_params_addr(%rip)
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movq %rsi, boot_params_addr_(%rip)
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jmp startup
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@ -136,7 +136,7 @@ efi_handover:
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# Save the boot params pointer.
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movq %rax, boot_params_addr(%rip)
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movq %rax, boot_params_addr_(%rip)
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# The 64-bit entry point for AP boot and for restart after relocation.
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@ -164,21 +164,21 @@ startup:
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# Initialise the pml4 and pdp tables.
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leaq pml4(%rip), %rcx
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leaq pdp(%rip), %rdx
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leaq pml4_(%rip), %rcx
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leaq pdp_(%rip), %rdx
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movq %rdx, %rax
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addq $0x3, %rax
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movq %rax, 0(%rcx)
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leaq pd0(%rip), %rax
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leaq pd0_(%rip), %rax
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addq $0x3, %rax
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movq %rax, 0(%rdx)
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leaq pd1(%rip), %rax
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leaq pd1_(%rip), %rax
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addq $0x3, %rax
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movq %rax, 8(%rdx)
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leaq pd2(%rip), %rax
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leaq pd2_(%rip), %rax
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addq $0x3, %rax
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movq %rax, 16(%rdx)
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leaq pd3(%rip), %rax
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leaq pd3_(%rip), %rax
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addq $0x3, %rax
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movq %rax, 24(%rdx)
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@ -453,14 +453,14 @@ gdt_descr:
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.quad 0 # addr: filled in at run time
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.align 4
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.globl gdt
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// .globl gdt
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gdt:
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.quad 0x0000000000000000 # NULL descriptor
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.quad 0x0000000000000000 # not used
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.quad 0x00209a0000000000 # 0x10 64-bit code at 0x000000
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.quad 0x0000920000000000 # 0x18 64-bit data at 0x000000
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.globl gdt_end
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// .globl gdt_end
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gdt_end:
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.data
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@ -492,6 +492,7 @@ gdt_end:
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.align 4096
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.globl pml4
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pml4:
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pml4_:
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.quad 0 # filled in at run time
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# Page Directory Pointer Table:
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@ -500,6 +501,7 @@ pml4:
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.align 4096
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.globl pdp
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pdp:
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pdp_:
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.quad 0 # filled in at run time
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.quad 0 # filled in at run time
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.quad 0 # filled in at run time
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@ -514,21 +516,25 @@ pdp:
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.align 4096
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.globl pd0
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pd0:
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pd0_:
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ptes64 0x0000000000000000
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.align 4096
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.globl pd1
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pd1:
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pd1_:
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ptes64 0x0000000040000000
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.align 4096
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.globl pd2
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pd2:
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pd2_:
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ptes64 0x0000000080000000
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.align 4096
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.globl pd3
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pd3:
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pd3_:
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ptes64 0x00000000C0000000
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.previous
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@ -561,7 +567,7 @@ data32 lgdt ap_gdt_descr - ap_trampoline
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# Set the page directory base address.
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movl %ebx, %eax
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addl $(pml4 - startup), %eax
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addl $(pml4_ - startup), %eax
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movl %eax, %cr3
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# Enable PAE.
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@ -608,6 +614,7 @@ ap_trampoline_end:
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.align 4
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.globl boot_params_addr
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boot_params_addr_:
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boot_params_addr:
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.quad 0
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@ -1,4 +1,4 @@
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AS = as -64
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AS = gcc
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CC = gcc
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OBJCOPY = objcopy
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@ -11,7 +11,7 @@ else
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endif
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CFLAGS = -std=gnu11 -Wall -Wextra -Wshadow -m64 -march=x86-64 -mno-mmx -mno-sse -mno-sse2 \
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-fpic -fno-builtin -ffreestanding -fomit-frame-pointer -fno-stack-protector \
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-fpic -fno-builtin -ffreestanding -fomit-frame-pointer -fno-stack-protector -flto \
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-DARCH_BITS=64
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ifeq ($(DEBUG), 1)
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@ -157,9 +157,14 @@ FORCE:
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# Link it statically once so I know I don't have undefined symbols and
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# then link it dynamically so I have full relocation information.
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memtest_shared: $(OBJS) $(MS_LDS) Makefile
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$(LD) --warn-constructors --warn-common -static -T $(MS_LDS) -o $@ $(OBJS) && \
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$(LD) -shared -Bsymbolic -T $(MS_LDS) -o $@ $(OBJS)
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memtest_shared: $(OBJS) ldscripts/memtest_shared.lds Makefile
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$(CC) -fpic -flto -ffreestanding -nostdlib -Wl,--warn-constructors -Wl,--warn-common -static -T $(MS_LDS) -o $@ $(OBJS) && \
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cp memtest_shared memtest_shared2 && \
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echo STEP2 && \
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$(CC) -fpic -flto -r -o $@.o $(OBJS) && \
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cp memtest_shared.o memtest_shared3 && \
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echo STEP3 && \
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$(CC) -fpic -flto -nostdlib -shared -Bsymbolic -T $(MS_LDS) -o $@ memtest_shared.o
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memtest_shared.bin: memtest_shared
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$(OBJCOPY) -O binary $< memtest_shared.bin
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