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| author | Rich Felker <dalias@aerifal.cx> | 2012-05-02 21:16:02 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-05-02 21:16:02 -0400 |
| commit | 2be87702b79c02b1acf68d6159a4fb399d2c9a57 (patch) | |
| tree | 64e0f42ed2c8b5b1a7738b147270668751d27206 | |
| parent | 94167cafd5a8f4f8309c3f82f5bda17f4767cb60 (diff) | |
| download | musl-2be87702b79c02b1acf68d6159a4fb399d2c9a57.tar.gz musl-2be87702b79c02b1acf68d6159a4fb399d2c9a57.tar.xz musl-2be87702b79c02b1acf68d6159a4fb399d2c9a57.zip | |
remove some junk from x86_64 start files
looks like nik copied these "extra arguments" from the i386 code. they're not actually arguments there, just 1-byte instructions to make sure the stack is aligned to 16 bytes after all the other arguments are pushed. since each push is 8 bytes on x86_64, they happened to have no effect here, but their presence is confusing and a minor waste of space.
| -rw-r--r-- | crt/x86_64/Scrt1.s | 2 | ||||
| -rw-r--r-- | crt/x86_64/crt1.s | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/crt/x86_64/Scrt1.s b/crt/x86_64/Scrt1.s index d8b71617..ba34e95e 100644 --- a/crt/x86_64/Scrt1.s +++ b/crt/x86_64/Scrt1.s @@ -9,8 +9,6 @@ _start: pop %rsi /* 2nd arg: argc */ mov %rsp,%rdx /* 3rd arg: argv */ andq $-16,%rsp /* align stack pointer */ - push %rax /* 8th arg: glibc ABI compatible */ - push %rsp /* 7th arg: glibc ABI compatible */ lea _fini(%rip),%r8 /* 5th arg: fini/dtors function */ lea _init(%rip),%rcx /* 4th arg: init/ctors function */ mov main@GOTPCREL(%rip),%rdi /* 1st arg: application entry ip */ diff --git a/crt/x86_64/crt1.s b/crt/x86_64/crt1.s index 50222f1c..40de3bed 100644 --- a/crt/x86_64/crt1.s +++ b/crt/x86_64/crt1.s @@ -9,8 +9,6 @@ _start: pop %rsi /* 2nd arg: argc */ mov %rsp,%rdx /* 3rd arg: argv */ andq $-16,%rsp /* align stack pointer */ - push %rax /* 8th arg: glibc ABI compatible */ - push %rsp /* 7th arg: glibc ABI compatible */ mov $_fini,%r8 /* 5th arg: fini/dtors function */ mov $_init,%rcx /* 4th arg: init/ctors function */ mov $main,%rdi /* 1st arg: application entry ip */ |