REQUIRES: x86 RUN: split-file %s %ts RUN: llvm-mc -filetype=obj -triple=x86_64 %ts/s -o %t.o ## Check assigning sections to memory regions by attributes. #--- s .text .zero 8 .rodata .zero 8 .data .zero 8 #--- t1 ## Check memory region attribute 'a'. # RUN: ld.lld -o %t1 -T %ts/t1 %t.o # RUN: llvm-readelf -S %t1 | FileCheck %s --check-prefix=TEST1 # TEST1: Name Type Address # TEST1: .text PROGBITS 0000000000002000 # TEST1-NEXT: .rodata PROGBITS 0000000000002008 # TEST1-NEXT: .data PROGBITS 0000000000002010 MEMORY { ## All sections have SHF_ALLOC attribute, so no one can be added here. NOMEM (rwx!a) : org = 0x1000, l = 1K ## All sections are assigned to this memory region. MEM (a) : org = 0x2000, l = 1K } SECTIONS { .text : { *(.text) } .rodata : { *(.rodata) } .data : { *(.data) } } #--- t2 ## Check that memory region attributes 'r', 'w', and 'x' are supported both in ## positive and negative forms. # RUN: ld.lld -o %t2 -T %ts/t2 %t.o # RUN: llvm-readelf -S %t2 | FileCheck %s --check-prefix=TEST2 # TEST2: Name Type Address # TEST2: .text PROGBITS 0000000000004000 # TEST2-NEXT: .rodata PROGBITS 0000000000003000 # TEST2-NEXT: .data PROGBITS 0000000000002000 MEMORY { ## While all sections are allocatable, '.text' and '.rodata' are read-only and ## '.data' is writable, so no sections should be assigned to this region. NOMEM (a!rw) : org = 0x1000, l = 1K ## Only writable section '.data' is allowed here. RAM (w) : org = 0x2000, l = 1K ## Executable sections are not allowed here, so only '.rodata' should be ## assigned to the region. ROM (r!x) : org = 0x3000, l = 1K ## An executable section '.text' comes here. EXEC (x) : org = 0x4000, l = 1K } SECTIONS { .text : { *(.text) } .rodata : { *(.rodata) } .data : { *(.data) } }