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| author | Geoff Norton <grompf@gmail.com> | 2015-02-11 17:26:34 -0800 |
|---|---|---|
| committer | Geoff Norton <grompf@gmail.com> | 2015-02-11 17:26:34 -0800 |
| commit | 38a4772c32c1a21436d1eb528766877fa538fdfa (patch) | |
| tree | 6f6eba0960e02f3ecc1fab7f863ba9b2b3331d7a /src | |
| parent | b7de56828c2047b5144840d65d13a148b96ea5f3 (diff) | |
| download | coreclr-38a4772c32c1a21436d1eb528766877fa538fdfa.tar.gz coreclr-38a4772c32c1a21436d1eb528766877fa538fdfa.tar.bz2 coreclr-38a4772c32c1a21436d1eb528766877fa538fdfa.zip | |
Ensure that we call memcpy from the PLT on linux
Diffstat (limited to 'src')
| -rw-r--r-- | src/vm/amd64/crthelpers.S | 8 | ||||
| -rw-r--r-- | src/vm/amd64/unixasmmacros.inc | 24 |
2 files changed, 19 insertions, 13 deletions
diff --git a/src/vm/amd64/crthelpers.S b/src/vm/amd64/crthelpers.S index 78fdea82b4..4cec104ffc 100644 --- a/src/vm/amd64/crthelpers.S +++ b/src/vm/amd64/crthelpers.S @@ -1,7 +1,7 @@ // // Copyright (c) Microsoft. All rights reserved. // Copyright (c) Geoff Norton. All rights reserved. -// Licensed under the MIT license. See LICENSE file in the project root for full license information. +// Licensed under the MIT license. See LICENSE file in the project root for full license information. // .intel_syntax noprefix @@ -13,7 +13,7 @@ // It is IMPORANT that the exception handling code is able to find these guys // on the stack, but on non-windows platforms we can just defer to the platform // implementation. -// +// LEAF_ENTRY JIT_MemSet, _TEXT test rdx, rdx @@ -21,7 +21,7 @@ LEAF_ENTRY JIT_MemSet, _TEXT cmp byte ptr [rdi], 0 - jmp C_FUNC(memset) + jmp C_PLTFUNC(memset) Exit_MemSet: ret @@ -35,7 +35,7 @@ LEAF_ENTRY JIT_MemCpy, _TEXT cmp byte ptr [rdi], 0 cmp byte ptr [rsi], 0 - jmp C_FUNC(memcpy) + jmp C_PLTFUNC(memset) Exit_MemCpy: ret diff --git a/src/vm/amd64/unixasmmacros.inc b/src/vm/amd64/unixasmmacros.inc index 79d2ea5044..3b8ad52ea0 100644 --- a/src/vm/amd64/unixasmmacros.inc +++ b/src/vm/amd64/unixasmmacros.inc @@ -1,15 +1,15 @@ // // Copyright (c) Microsoft. All rights reserved. -// Licensed under the MIT license. See LICENSE file in the project root for full license information. +// Licensed under the MIT license. See LICENSE file in the project root for full license information. // #define INVALIDGCVALUE -0x33333333 // 0CCCCCCCDh - the assembler considers it to be a signed integer constant -.macro NOP_3_BYTE +.macro NOP_3_BYTE nop dword ptr [rax] .endm -.macro NOP_2_BYTE +.macro NOP_2_BYTE xchg ax, ax .endm @@ -30,6 +30,12 @@ #define C_FUNC(name) name #endif +#if defined(__APPLE__) +#define C_PLTFUNC(name) _##name +#else +#define C_PLTFUNC(name) name@PLT +#endif + .macro PATCH_LABEL Name .global C_FUNC(\Name) C_FUNC(\Name): @@ -126,7 +132,7 @@ C_FUNC(\Name\()_End): // this one gives an "unknown directive" error // // .savexmm128 \Reg, \Offset - + ___STACK_ADJUSTMENT_FORBIDDEN = 1 .endm @@ -134,7 +140,7 @@ C_FUNC(\Name\()_End): .macro restore_xmm128 Reg, ofs __Offset = \ofs movdqa \Reg, [rsp + __Offset] -.endm +.endm .macro POP_CALLEE_SAVED_REGISTERS @@ -205,7 +211,7 @@ C_FUNC(\Name\()_End): // CalleeSavedRegisters::r13 // CalleeSavedRegisters::r12 // CalleeSavedRegisters::rbp -// CalleeSavedRegisters::rbx +// CalleeSavedRegisters::rbx // ArgumentRegisters::r9 // ArgumentRegisters::r8 // ArgumentRegisters::rcx @@ -258,7 +264,7 @@ C_FUNC(\Name\()_End): push_nonvol_reg r12 push_nonvol_reg rbp push_nonvol_reg rbx - + // ArgumentRegisters PUSH_ARGUMENT_REGISTERS @@ -279,12 +285,12 @@ C_FUNC(\Name\()_End): alloc_stack __PWTB_StackAlloc SAVE_FLOAT_ARGUMENT_REGISTERS __PWTB_FloatArgumentRegisters - + END_PROLOGUE .endm -.macro EPILOG_WITH_TRANSITION_BLOCK_TAILCALL +.macro EPILOG_WITH_TRANSITION_BLOCK_TAILCALL RESTORE_FLOAT_ARGUMENT_REGISTERS __PWTB_FloatArgumentRegisters lea rsp, [rsp + __PWTB_StackAlloc] |