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1// REQUIRES: arm2// RUN: llvm-mc -filetype=obj -triple=thumbv7-windows %s -o %t.obj3// RUN: lld-link -entry:main -subsystem:console %t.obj -out:%t.exe -verbose 2>&1 | FileCheck -check-prefix=VERBOSE %s4// RUN: llvm-objdump --no-print-imm-hex -d %t.exe --start-address=0x403000 --stop-address=0x403008 | FileCheck --check-prefix=FUNC01 %s5// RUN: llvm-objdump --no-print-imm-hex -d %t.exe --start-address=0x404ffa --stop-address=0x405012 | FileCheck --check-prefix=FUNC01-THUNKS %s6 7// VERBOSE: Added {{.*}} thunks with margin 204800 in 2 passes8 9 .syntax unified10 .globl main11 .text12main:13 b func0114 bx lr15 16.irp i, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 1817 .section .text$\i\()a, "xr"18 .balign 819219func\i:20 bne far_func\i21 bne func_within_margin\i22 // Originally, the first section is less than 8192 bytes large, and the23 // second one follows almost directly. After adding one thunk after24 // the first section, the second one will move forward by 8192 bytes25 // due to the alignment.26 .space 8192 - 8 - 427 28 .section .text$\i\()b, "xr"29 .balign 819230align\i:31 nop32.endr33 34 .section .text$999, "xr"35tail:36 .space 0x100000 - 100*1024 - 18*8192*237 // Initially, these symbols are within range from all the sections above,38 // even when taking the initial margin into account. After adding thunks39 // to all the sections above, some of these are also out of range, forcing40 // running a second pass.41.irp i, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 1842func_within_margin\i:43 nop44.endr45 .space 0x10000046 47 // These are always out of range.48.irp i, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 1849far_func\i:50 nop51.endr52 bx lr53 54// FUNC01: 403000: f041 87fc bne.w 0x404ffc <.text+0x3ffc>55// FUNC01: 403004: f041 87ff bne.w 0x405006 <.text+0x4006>56 57// Check that we only have two thunks here, even if we created the first58// thunk twice (once in the first pass, then thrown away and recreated59// in the second pass).60 61// FUNC01-THUNKS: 404ffa: 0000 movs r0, r062// The instruction above is padding from the .space63// FUNC01-THUNKS: 404ffc: f247 0c1e movw r12, #2870264// FUNC01-THUNKS: 405000: f2c0 0c20 movt r12, #3265// FUNC01-THUNKS: 405004: 44e7 add pc, r1266// FUNC01-THUNKS: 405006: f646 7cf0 movw r12, #2865667// FUNC01-THUNKS: 40500a: f2c0 0c10 movt r12, #1668// FUNC01-THUNKS: 40500e: 44e7 add pc, r1269// The instruction below is padding from the .balign70// FUNC01-THUNKS: 405010: 0000 movs r0, r071