iOS: makefiles and runtime for new archs
This commit is contained in:
Valerii Hiora
parent
ea045d2055
commit
a945f288ff
8 changed files with 336 additions and 51 deletions
70
src/rt/arch/armv7/morestack.S
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70
src/rt/arch/armv7/morestack.S
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// Mark stack as non-executable
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack, "", %progbits
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#endif
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/* See i386/morestack.S for the lengthy, general explanation. */
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.text
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.code 32
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.arm
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#if defined(__APPLE__)
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.align 2
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#else
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.align
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#endif
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#if defined(__APPLE__)
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#define MORESTACK ___morestack
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#define STACK_EXHAUSTED _rust_stack_exhausted
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#else
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#define MORESTACK __morestack
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#define STACK_EXHAUSTED rust_stack_exhausted
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#endif
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.global STACK_EXHAUSTED
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.global MORESTACK
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// Unfortunately LLVM yet doesn't support emitting correct debug
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// DWARF information for non-ELF targets so to make it compile
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// on iOS all that directives are simply commented out
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#if defined(__APPLE__)
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#define UNWIND @
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#else
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#define UNWIND
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#endif
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#if defined(__APPLE__)
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.private_extern MORESTACK
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#else
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.hidden MORESTACK
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#endif
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#if !defined(__APPLE__)
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.type MORESTACK,%function
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#endif
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// r4 and r5 are scratch registers for __morestack due to llvm
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// ARMFrameLowering::adjustForSegmentedStacks() implementation.
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MORESTACK:
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UNWIND .fnstart
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// Save frame pointer and return address
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UNWIND .save {r4, r5}
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UNWIND .save {lr}
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UNWIND .save {r6, fp, lr}
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push {r6, fp, lr}
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UNWIND .movsp r6
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mov r6, sp
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UNWIND .setfp fp, sp, #4
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add fp, sp, #4
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// Save argument registers of the original function
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push {r0, r1, r2, r3, lr}
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// Create new stack
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bl STACK_EXHAUSTED@plt
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// the above function ensures that it never returns
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UNWIND .fnend
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56
src/rt/arch/armv7/record_sp.S
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56
src/rt/arch/armv7/record_sp.S
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@ -0,0 +1,56 @@
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// Do not compile anything here for iOS because split stacks
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// are disabled at all and do not need any runtime support.
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//
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// See also comments in librustrt/stack.rs about why it was
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// disabled and how it could be implemented in case of need.
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#if !defined(__APPLE__)
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// Mark stack as non-executable
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack, "", %progbits
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#endif
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.text
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.code 32
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.arm
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.align
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#define RECORD_SP_LIMIT record_sp_limit
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#define GET_SP_LIMIT get_sp_limit
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.globl RECORD_SP_LIMIT
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.globl GET_SP_LIMIT
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RECORD_SP_LIMIT:
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// First, try to read TLS address from coprocessor
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mrc p15, #0, r3, c13, c0, #3
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cmp r3, #0
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// Otherwise, try to read from magic address 0xFFFF0FF0
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mvneq r3, #0xF000
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ldreq r3, [r3, #-15]
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#if __ANDROID__
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add r3, r3, #252
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#elif __linux__
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add r3, r3, #4
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#endif // ANDROID
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str r0, [r3]
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mov pc, lr
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GET_SP_LIMIT:
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// First, try to read TLS address from coprocessor
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mrc p15, #0, r3, c13, c0, #3
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cmp r3, #0
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// Otherwise, try to read from magic address 0xFFFF0FF0
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mvneq r3, #0xF000
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ldreq r3, [r3, #-15]
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#if __ANDROID__
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add r3, r3, #252
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#elif __linux__
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add r3, r3, #4
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#endif // __ANDROID__
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ldr r0, [r3]
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mov pc, lr
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#endif
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70
src/rt/arch/armv7s/morestack.S
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70
src/rt/arch/armv7s/morestack.S
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@ -0,0 +1,70 @@
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// Mark stack as non-executable
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack, "", %progbits
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#endif
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/* See i386/morestack.S for the lengthy, general explanation. */
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.text
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.code 32
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.arm
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#if defined(__APPLE__)
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.align 2
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#else
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.align
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#endif
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#if defined(__APPLE__)
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#define MORESTACK ___morestack
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#define STACK_EXHAUSTED _rust_stack_exhausted
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#else
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#define MORESTACK __morestack
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#define STACK_EXHAUSTED rust_stack_exhausted
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#endif
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.global STACK_EXHAUSTED
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.global MORESTACK
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// Unfortunately LLVM yet doesn't support emitting correct debug
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// DWARF information for non-ELF targets so to make it compile
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// on iOS all that directives are simply commented out
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#if defined(__APPLE__)
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#define UNWIND @
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#else
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#define UNWIND
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#endif
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#if defined(__APPLE__)
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.private_extern MORESTACK
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#else
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.hidden MORESTACK
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#endif
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#if !defined(__APPLE__)
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.type MORESTACK,%function
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#endif
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// r4 and r5 are scratch registers for __morestack due to llvm
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// ARMFrameLowering::adjustForSegmentedStacks() implementation.
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MORESTACK:
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UNWIND .fnstart
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// Save frame pointer and return address
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UNWIND .save {r4, r5}
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UNWIND .save {lr}
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UNWIND .save {r6, fp, lr}
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push {r6, fp, lr}
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UNWIND .movsp r6
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mov r6, sp
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UNWIND .setfp fp, sp, #4
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add fp, sp, #4
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// Save argument registers of the original function
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push {r0, r1, r2, r3, lr}
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// Create new stack
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bl STACK_EXHAUSTED@plt
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// the above function ensures that it never returns
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UNWIND .fnend
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56
src/rt/arch/armv7s/record_sp.S
Normal file
56
src/rt/arch/armv7s/record_sp.S
Normal file
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@ -0,0 +1,56 @@
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// Do not compile anything here for iOS because split stacks
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// are disabled at all and do not need any runtime support.
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//
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// See also comments in librustrt/stack.rs about why it was
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// disabled and how it could be implemented in case of need.
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#if !defined(__APPLE__)
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// Mark stack as non-executable
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack, "", %progbits
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#endif
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.text
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.code 32
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.arm
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.align
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#define RECORD_SP_LIMIT record_sp_limit
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#define GET_SP_LIMIT get_sp_limit
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.globl RECORD_SP_LIMIT
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.globl GET_SP_LIMIT
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RECORD_SP_LIMIT:
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// First, try to read TLS address from coprocessor
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mrc p15, #0, r3, c13, c0, #3
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cmp r3, #0
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// Otherwise, try to read from magic address 0xFFFF0FF0
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mvneq r3, #0xF000
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ldreq r3, [r3, #-15]
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#if __ANDROID__
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add r3, r3, #252
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#elif __linux__
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add r3, r3, #4
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#endif // ANDROID
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str r0, [r3]
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mov pc, lr
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GET_SP_LIMIT:
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// First, try to read TLS address from coprocessor
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mrc p15, #0, r3, c13, c0, #3
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cmp r3, #0
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// Otherwise, try to read from magic address 0xFFFF0FF0
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mvneq r3, #0xF000
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ldreq r3, [r3, #-15]
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#if __ANDROID__
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add r3, r3, #252
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#elif __linux__
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add r3, r3, #4
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#endif // __ANDROID__
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ldr r0, [r3]
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mov pc, lr
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#endif
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