CoCalc -- tsan_rtl

GitHub Repository: freebsd/freebsd-src
Path: blob/main/contrib/llvm-project/compiler-rt/lib/tsan/rtl/tsan_rtl_aarch64.S
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// The content of this file is AArch64-only:
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#if defined(__aarch64__)
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#include "sanitizer_common/sanitizer_asm.h"
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#include "builtins/assembly.h"
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#if !defined(__APPLE__)
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.section .text
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#else
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.section __TEXT,__text
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.align 3
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#endif
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ASM_HIDDEN(__tsan_setjmp)
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.comm _ZN14__interception11real_setjmpE,8,8
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.globl ASM_SYMBOL_INTERCEPTOR(setjmp)
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ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(setjmp))
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ASM_SYMBOL_INTERCEPTOR(setjmp):
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  CFI_STARTPROC
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  BTI_C
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  // Save frame/link register
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  stp     x29, x30, [sp, -32]!
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  CFI_DEF_CFA_OFFSET (32)
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  CFI_OFFSET (29, -32)
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  CFI_OFFSET (30, -24)
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  // Adjust the SP for previous frame
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  add     x29, sp, 0
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  CFI_DEF_CFA_REGISTER (29)
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  // Save env parameter
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  str     x0, [sp, 16]
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  CFI_OFFSET (0, -16)
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  // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
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  add     x0, x29, 32
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  // call tsan interceptor
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  bl      ASM_SYMBOL(__tsan_setjmp)
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  // Restore env parameter
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  ldr     x0, [sp, 16]
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  CFI_RESTORE (0)
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  // Restore frame/link register
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  ldp     x29, x30, [sp], 32
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  CFI_RESTORE (29)
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  CFI_RESTORE (30)
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  CFI_DEF_CFA (31, 0)
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  // tail jump to libc setjmp
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#if !defined(__APPLE__)
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  adrp    x1, :got:_ZN14__interception11real_setjmpE
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  ldr     x1, [x1, #:got_lo12:_ZN14__interception11real_setjmpE]
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  ldr     x1, [x1]
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#else
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  adrp    x1, _setjmp@GOTPAGE
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  ldr     x1, [x1, _setjmp@GOTPAGEOFF]
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#endif
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  br      x1
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  CFI_ENDPROC
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ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(setjmp))
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.comm _ZN14__interception12real__setjmpE,8,8
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.globl ASM_SYMBOL_INTERCEPTOR(_setjmp)
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ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(_setjmp))
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ASM_SYMBOL_INTERCEPTOR(_setjmp):
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  CFI_STARTPROC
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  BTI_C
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  // Save frame/link register
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  stp     x29, x30, [sp, -32]!
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  CFI_DEF_CFA_OFFSET (32)
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  CFI_OFFSET (29, -32)
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  CFI_OFFSET (30, -24)
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  // Adjust the SP for previous frame
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  add     x29, sp, 0
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  CFI_DEF_CFA_REGISTER (29)
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  // Save env parameter
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  str     x0, [sp, 16]
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  CFI_OFFSET (0, -16)
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  // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
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  add     x0, x29, 32
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  // call tsan interceptor
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  bl      ASM_SYMBOL(__tsan_setjmp)
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  // Restore env parameter
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  ldr     x0, [sp, 16]
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  CFI_RESTORE (0)
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  // Restore frame/link register
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  ldp     x29, x30, [sp], 32
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  CFI_RESTORE (29)
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  CFI_RESTORE (30)
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  CFI_DEF_CFA (31, 0)
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  // tail jump to libc setjmp
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#if !defined(__APPLE__)
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  adrp    x1, :got:_ZN14__interception12real__setjmpE
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  ldr     x1, [x1, #:got_lo12:_ZN14__interception12real__setjmpE]
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  ldr     x1, [x1]
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#else
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  adrp    x1, __setjmp@GOTPAGE
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  ldr     x1, [x1, __setjmp@GOTPAGEOFF]
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#endif
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  br      x1
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  CFI_ENDPROC
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ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(_setjmp))
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.comm _ZN14__interception14real_sigsetjmpE,8,8
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.globl ASM_SYMBOL_INTERCEPTOR(sigsetjmp)
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ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
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ASM_SYMBOL_INTERCEPTOR(sigsetjmp):
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  CFI_STARTPROC
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  BTI_C
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  // Save frame/link register
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  stp     x29, x30, [sp, -32]!
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  CFI_DEF_CFA_OFFSET (32)
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  CFI_OFFSET (29, -32)
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  CFI_OFFSET (30, -24)
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  // Adjust the SP for previous frame
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  add     x29, sp, 0
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  CFI_DEF_CFA_REGISTER (29)
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  // Save env and savesigs parameter
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  stp     x0, x1, [sp, 16]
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  CFI_OFFSET (0, -16)
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  CFI_OFFSET (1, -8)
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  // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
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  add     x0, x29, 32
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  // call tsan interceptor
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  bl      ASM_SYMBOL(__tsan_setjmp)
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  // Restore env and savesigs parameter
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  ldp     x0, x1, [sp, 16]
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  CFI_RESTORE (0)
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  CFI_RESTORE (1)
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  // Restore frame/link register
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  ldp     x29, x30, [sp], 32
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  CFI_RESTORE (29)
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  CFI_RESTORE (30)
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  CFI_DEF_CFA (31, 0)
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  // tail jump to libc sigsetjmp
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#if !defined(__APPLE__)
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  adrp    x2, :got:_ZN14__interception14real_sigsetjmpE
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  ldr     x2, [x2, #:got_lo12:_ZN14__interception14real_sigsetjmpE]
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  ldr     x2, [x2]
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#else
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  adrp    x2, _sigsetjmp@GOTPAGE
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  ldr     x2, [x2, _sigsetjmp@GOTPAGEOFF]
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#endif
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  br      x2
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  CFI_ENDPROC
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ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
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#if !defined(__APPLE__)
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.comm _ZN14__interception16real___sigsetjmpE,8,8
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.globl ASM_SYMBOL_INTERCEPTOR(__sigsetjmp)
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ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
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ASM_SYMBOL_INTERCEPTOR(__sigsetjmp):
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  CFI_STARTPROC
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  BTI_C
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  // Save frame/link register
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  stp     x29, x30, [sp, -32]!
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  CFI_DEF_CFA_OFFSET (32)
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  CFI_OFFSET (29, -32)
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  CFI_OFFSET (30, -24)
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  // Adjust the SP for previous frame
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  add     x29, sp, 0
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  CFI_DEF_CFA_REGISTER (29)
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  // Save env and savesigs parameter
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  stp     x0, x1, [sp, 16]
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  CFI_OFFSET (0, -16)
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  CFI_OFFSET (1, -8)
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  // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
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  add     x0, x29, 32
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  // call tsan interceptor
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  bl      ASM_SYMBOL(__tsan_setjmp)
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  // Restore env and savesigs parameter
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  ldp     x0, x1, [sp, 16]
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  CFI_RESTORE (0)
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  CFI_RESTORE (1)
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  // Restore frame/link register
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  ldp     x29, x30, [sp], 32
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  CFI_RESTORE (29)
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  CFI_RESTORE (30)
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  CFI_DEF_CFA (31, 0)
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  // tail jump to libc __sigsetjmp
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#if !defined(__APPLE__)
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  adrp    x2, :got:_ZN14__interception16real___sigsetjmpE
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  ldr     x2, [x2, #:got_lo12:_ZN14__interception16real___sigsetjmpE]
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  ldr     x2, [x2]
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#else
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  adrp    x2, ASM_SYMBOL(__sigsetjmp)@page
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  add     x2, x2, ASM_SYMBOL(__sigsetjmp)@pageoff
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#endif
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  br      x2
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  CFI_ENDPROC
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ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
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#endif
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NO_EXEC_STACK_DIRECTIVE
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GNU_PROPERTY_BTI_PAC
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#endif
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