f64a6eeaf0
Most importantly, this version of delocate works for ppc64le. It should also work for x86-64, but will need significant testing to make sure that it covers all the cases that the previous delocate.go covered. It's less stringtastic than the old code, however the parser isn't as nice as I would have liked. I thought that the reason we put up with AT&T syntax with Intel is so that assembly syntax could be somewhat consistent across platforms. At least for ppc64le, that does not appear to be the case. Change-Id: Ic7e3c6acc3803d19f2c3ff5620c5e39703d74212 Reviewed-on: https://boringssl-review.googlesource.com/16464 Reviewed-by: Adam Langley <agl@google.com> Commit-Queue: Adam Langley <agl@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
165 lines
2.7 KiB
ArmAsm
165 lines
2.7 KiB
ArmAsm
.text
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BORINGSSL_bcm_text_start:
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.type foo, @function
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.globl foo
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.Lfoo_local_target:
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foo:
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movq $0, %rax
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ret
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.Lbar_local_target:
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bar:
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# References to globals must be rewritten to their local targets.
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# WAS call foo
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call .Lfoo_local_target
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# WAS jmp foo
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jmp .Lfoo_local_target
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# WAS jbe foo
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jbe .Lfoo_local_target
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# WAS jne foo
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jne .Lfoo_local_target
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# Jumps to PLT symbols are rewritten through redirectors.
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# WAS call memcpy@PLT
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call bcm_redirector_memcpy
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# WAS jmp memcpy@PLT
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jmp bcm_redirector_memcpy
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# WAS jbe memcpy@PLT
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jbe bcm_redirector_memcpy
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# Jumps to local PLT symbols use their local targets.
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# WAS call foo@PLT
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call .Lfoo_local_target
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# WAS jmp foo@PLT
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jmp .Lfoo_local_target
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# WAS jbe foo@PLT
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jbe .Lfoo_local_target
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# Synthesized symbols are treated as local ones.
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# WAS call OPENSSL_ia32cap_get@PLT
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call OPENSSL_ia32cap_get
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# References to local labels are left as-is in the first file.
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.Llocal_label:
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jbe .Llocal_label
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leaq .Llocal_label+2048(%rip), %r14
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leaq .Llocal_label+2048+1024(%rip), %r14
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# WAS .section .rodata
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.text
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.L1:
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.quad 42
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.L2:
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.quad .L2-.L1
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# Local labels and their jumps are left alone.
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.text
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jmp 1f
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1:
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jmp 1b
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# References to local labels are rewrittenn in subsequent files.
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.Llocal_label_BCM_1:
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# WAS jbe .Llocal_label
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jbe .Llocal_label_BCM_1
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# WAS leaq .Llocal_label+2048(%rip), %r14
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leaq .Llocal_label_BCM_1+2048(%rip), %r14
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# WAS leaq .Llocal_label+2048+1024(%rip), %r14
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leaq .Llocal_label_BCM_1+2048+1024(%rip), %r14
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# WAS .section .rodata
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.text
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.L1_BCM_1:
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.quad 42
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.L2_BCM_1:
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# WAS .quad .L2-.L1
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.quad .L2_BCM_1-.L1_BCM_1
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.text
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BORINGSSL_bcm_text_end:
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.type bcm_redirector_memcpy, @function
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bcm_redirector_memcpy:
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jmp memcpy@PLT
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.type OPENSSL_ia32cap_get, @function
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OPENSSL_ia32cap_get:
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leaq OPENSSL_ia32cap_P(%rip), %rax
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ret
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.extern OPENSSL_ia32cap_P
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.type OPENSSL_ia32cap_addr_delta, @object
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.size OPENSSL_ia32cap_addr_delta, 8
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OPENSSL_ia32cap_addr_delta:
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.quad OPENSSL_ia32cap_P-OPENSSL_ia32cap_addr_delta
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.type BORINGSSL_bcm_text_hash, @object
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.size BORINGSSL_bcm_text_hash, 64
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BORINGSSL_bcm_text_hash:
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.byte 0xae
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.byte 0x2c
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.byte 0xea
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.byte 0x2a
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.byte 0xbd
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.byte 0xa6
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.byte 0xf3
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.byte 0xec
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.byte 0x97
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.byte 0x7f
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.byte 0x9b
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.byte 0xf6
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.byte 0x94
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.byte 0x9a
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.byte 0xfc
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.byte 0x83
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.byte 0x68
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.byte 0x27
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.byte 0xcb
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.byte 0xa0
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.byte 0xa0
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.byte 0x9f
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.byte 0x6b
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.byte 0x6f
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.byte 0xde
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.byte 0x52
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.byte 0xcd
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.byte 0xe2
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.byte 0xcd
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.byte 0xff
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.byte 0x31
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.byte 0x80
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.byte 0xa2
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.byte 0xd4
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.byte 0xc3
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.byte 0x66
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.byte 0xf
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.byte 0xc2
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.byte 0x6a
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.byte 0x7b
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.byte 0xf4
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.byte 0xbe
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.byte 0x39
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.byte 0xa2
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.byte 0xd7
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.byte 0x25
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.byte 0xdb
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.byte 0x21
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.byte 0x98
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.byte 0xe9
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.byte 0xd5
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.byte 0x53
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.byte 0xbf
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.byte 0x5c
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.byte 0x32
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.byte 0x6
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.byte 0x83
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.byte 0x34
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.byte 0xc
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.byte 0x65
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.byte 0x89
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.byte 0x52
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.byte 0xbd
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.byte 0x1f
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