// REQUIRES: arm // RUN: llvm-mc -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t // RUN: echo "SECTIONS { \ // RUN: .text 0x100000 : { *(.text) } \ // RUN: .textl : { *(.text_l0*) *(.text_l1*) *(.text_l2*) *(.text_l3*) } \ // RUN: .texth : { *(.text_h0*) *(.text_h1*) *(.text_h2*) *(.text_h3*) } \ // RUN: }" > %t.script // RUN: ld.lld --script %t.script %t -o %t2 2>&1 // The output file is large, most of it zeroes. We dissassemble only the // parts we need to speed up the test and avoid a large output file // RUN: llvm-objdump -d %t2 -start-address=1048576 -stop-address=1048594 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK1 %s // RUN: llvm-objdump -d %t2 -start-address=2097152 -stop-address=2097160 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK2 %s // RUN: llvm-objdump -d %t2 -start-address=11534340 -stop-address=11534350 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK3 %s // RUN: llvm-objdump -d %t2 -start-address=34603008 -stop-address=34603034 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK4 %s // RUN: llvm-objdump -d %t2 -start-address=35651584 -stop-address=35651598 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK5 %s // RUN: llvm-objdump -d %t2 -start-address=68157440 -stop-address=68157472 -triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK6 %s // Test the range extensions in a linker script where there are several // OutputSections requiring range extension Thunks. We should be able to reuse // Thunks between OutputSections but our placement of new Thunks is done on a // per OutputSection basis .syntax unified // Define a function that we can match with .text_l* aligned on a megabyte // boundary .macro FUNCTIONL suff .section .text_l\suff\(), "ax", %progbits .thumb .balign 0x100000 .globl tfuncl\suff\() .type tfuncl\suff\(), %function tfuncl\suff\(): bx lr .endm // Define a function that we can match with .text_h* aligned on a megabyte // boundary .macro FUNCTIONH suff .section .text_h\suff\(), "ax", %progbits .thumb .balign 0x100000 .globl tfunch\suff\() .type tfunch\suff\(), %function tfunch\suff\(): bx lr .endm .section .text, "ax", %progbits .thumb .globl _start _start: bl tfuncl00 // Expect a range extension thunk in .text OutputSection bl tfunch31 // CHECK1: Disassembly of section .text: // CHECK1-NEXT: _start: // CHECK1-NEXT: 100000: ff f0 fe ff bl #1048572 // CHECK1-NEXT: 100004: 00 f0 00 f8 bl #0 // CHECK1: __Thumbv7ABSLongThunk_tfunch31: // CHECK1-NEXT: 100008: 40 f2 01 0c movw r12, #1 // CHECK1-NEXT: 10000c: c0 f2 10 4c movt r12, #1040 // CHECK1-NEXT: 100010: 60 47 bx r12 FUNCTIONL 00 // Create a range extension thunk in .textl bl tfuncl24 // We can reuse existing thunk in .text bl tfunch31 // CHECK2: Disassembly of section .textl: // CHECK2-NEXT: tfuncl00: // CHECK2-NEXT: 200000: 70 47 bx lr // CHECK2-NEXT: 200002: ff f0 ff df bl #9437182 // CHECK2-NEXT: 200006: ff f6 ff ff bl #-1048578 FUNCTIONL 01 FUNCTIONL 02 FUNCTIONL 03 FUNCTIONL 04 FUNCTIONL 05 FUNCTIONL 06 FUNCTIONL 07 FUNCTIONL 08 FUNCTIONL 09 // CHECK3: __Thumbv7ABSLongThunk_tfuncl24: // CHECK3-NEXT: b00004: ff f2 fc 97 b.w #15728632 FUNCTIONL 10 FUNCTIONL 11 FUNCTIONL 12 FUNCTIONL 13 FUNCTIONL 14 FUNCTIONL 15 FUNCTIONL 16 FUNCTIONL 17 FUNCTIONL 18 FUNCTIONL 19 FUNCTIONL 20 FUNCTIONL 21 FUNCTIONL 22 FUNCTIONL 23 FUNCTIONL 24 FUNCTIONL 25 FUNCTIONL 26 FUNCTIONL 27 FUNCTIONL 28 FUNCTIONL 29 FUNCTIONL 30 FUNCTIONL 31 // Create range extension thunks in .textl bl tfuncl00 bl tfuncl24 // Shouldn't need a thunk bl tfunch00 // CHECK4: 2100002: 00 f0 05 f8 bl #10 // CHECK4-NEXT: 2100006: ff f4 fb f7 bl #-7340042 // CHECK4-NEXT: 210000a: ff f0 f9 ff bl #1048562 // CHECK4: __Thumbv7ABSLongThunk_tfuncl00: // CHECK4-NEXT: 2100010: 40 f2 01 0c movw r12, #1 // CHECK4-NEXT: 2100014: c0 f2 20 0c movt r12, #32 // CHECK4-NEXT: 2100018: 60 47 bx r12 FUNCTIONH 00 // Can reuse existing thunks in .textl bl tfuncl00 bl tfuncl24 // Shouldn't need a thunk bl tfuncl31 // CHECK5: Disassembly of section .texth: // CHECK5-NEXT: tfunch00: // CHECK5-NEXT: 2200000: 70 47 bx lr // CHECK5-NEXT: 2200002: 00 f7 05 f8 bl #-1048566 // CHECK5-NEXT: 2200006: ff f7 fb df bl #-8388618 // CHECK5-NEXT: 220000a: ff f6 f9 ff bl #-1048590 FUNCTIONH 01 FUNCTIONH 02 FUNCTIONH 03 FUNCTIONH 04 FUNCTIONH 05 FUNCTIONH 06 FUNCTIONH 07 FUNCTIONH 08 FUNCTIONH 09 FUNCTIONH 10 FUNCTIONH 11 FUNCTIONH 12 FUNCTIONH 13 FUNCTIONH 14 FUNCTIONH 15 FUNCTIONH 16 FUNCTIONH 17 FUNCTIONH 18 FUNCTIONH 19 FUNCTIONH 20 FUNCTIONH 21 FUNCTIONH 22 FUNCTIONH 23 FUNCTIONH 24 FUNCTIONH 25 FUNCTIONH 26 FUNCTIONH 27 FUNCTIONH 28 FUNCTIONH 29 FUNCTIONH 30 FUNCTIONH 31 // expect Thunks in .texth bl tfuncl00 bl tfunch00 // CHECK6: tfunch31: // CHECK6-NEXT: 4100000: 70 47 bx lr // CHECK6-NEXT: 4100002: 00 f0 03 f8 bl #6 // CHECK6-NEXT: 4100006: 00 f0 06 f8 bl #12 // CHECK6: __Thumbv7ABSLongThunk_tfuncl00: // CHECK6-NEXT: 410000c: 40 f2 01 0c movw r12, #1 // CHECK6-NEXT: 4100010: c0 f2 20 0c movt r12, #32 // CHECK6-NEXT: 4100014: 60 47 bx r12 // CHECK6: __Thumbv7ABSLongThunk_tfunch00: // CHECK6-NEXT: 4100016: 40 f2 01 0c movw r12, #1 // CHECK6-NEXT: 410001a: c0 f2 20 2c movt r12, #544 // CHECK6-NEXT: 410001e: 60 47 bx r12