derek.holloway
7502bf64a4
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75 lines
2.3 KiB
Plaintext
75 lines
2.3 KiB
Plaintext
REQUIRES: x86
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# RUN: rm -rf %t && split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
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## The error should be triggered only for the second test where the overflow really exists.
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RUN: ld.lld %t/a.o -T %t/b.lds -o /dev/null 2>&1
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RUN: not ld.lld %t/a.o -T %t/c.lds -o /dev/null 2>&1 | FileCheck --check-prefix=ERROR %s
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# ERROR: error: section '_abss' will not fit in region 'SRAM0': overflowed by 1024 bytes
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# ERROR: error: section '.c.bss' will not fit in region 'SRAM0': overflowed by 1024 bytes
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# ERROR: error: section '.text' will not fit in region 'SRAM0': overflowed by 1025 bytes
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#--- a.s
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.section .a.bss, "aw", %nobits
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.globl abss
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abss:
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.zero 0xDF0
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.size abss, 0xDF0
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.section .c.bss, "aw", %nobits
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.globl cbss
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.text
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.globl _start
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_start:
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nop
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#--- b.lds
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MEMORY
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{
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SRAM0 (rw) : ORIGIN = 0x20000400, LENGTH = 10K
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}
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SECTIONS
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{
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_abss : ALIGN(REGION1__PRE_ALIGNMENT)
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{
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REGION1__BEGIN = .; REGION1__ALIGNED_BEGIN = .; REGION1_ALIGNED_BEGIN = .;
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*(.a.bss)
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REGION1__END = .; . = ALIGN(REGION1__POST_ALIGNMENT); REGION1_ALIGNED_END = .;
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} > SRAM0
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}
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REGION1__PRE_ALIGNMENT = 0x00000800;
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REGION1__PADDED_XOR = ((ABSOLUTE(REGION1__ALIGNED_BEGIN) | (ABSOLUTE(REGION1__END) - 1)) & ~(ABSOLUTE(REGION1__ALIGNED_BEGIN) & (ABSOLUTE(REGION1__END) - 1)));
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REGION1__PADDED_REGION_SHIFT = LOG2CEIL(REGION1__PADDED_XOR);
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REGION1__PADDED_SR_SHIFT = REGION1__PADDED_REGION_SHIFT - 3;
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REGION1__PADDED_SR_SIZE = MAX(1 << REGION1__PADDED_SR_SHIFT, 32);
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REGION1__POST_ALIGNMENT = REGION1__PADDED_SR_SIZE;
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#--- c.lds
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MEMORY
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{
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SRAM0 (rw) : ORIGIN = 0x20000400, LENGTH = 4K
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}
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SECTIONS
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{
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_abss : ALIGN(REGION1__PRE_ALIGNMENT)
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{
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REGION1__BEGIN = .; REGION1__ALIGNED_BEGIN = .; REGION1_ALIGNED_BEGIN = .;
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*(.a.bss)
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REGION1__END = .; . = ALIGN(REGION1__POST_ALIGNMENT); REGION1_ALIGNED_END = .;
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} > SRAM0
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}
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REGION1__PRE_ALIGNMENT = 0x00000800;
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REGION1__PADDED_XOR = ((ABSOLUTE(REGION1__ALIGNED_BEGIN) | (ABSOLUTE(REGION1__END) - 1)) & ~(ABSOLUTE(REGION1__ALIGNED_BEGIN) & (ABSOLUTE(REGION1__END) - 1)));
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REGION1__PADDED_REGION_SHIFT = LOG2CEIL(REGION1__PADDED_XOR);
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REGION1__PADDED_SR_SHIFT = REGION1__PADDED_REGION_SHIFT - 3;
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REGION1__PADDED_SR_SIZE = MAX(1 << REGION1__PADDED_SR_SHIFT, 32);
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REGION1__POST_ALIGNMENT = REGION1__PADDED_SR_SIZE;
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