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| author | Rich Felker <dalias@aerifal.cx> | 2012-05-27 14:49:55 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-05-27 14:49:55 -0400 |
| commit | b94608ca10051e7911250aaa53f1435b0512018c (patch) | |
| tree | fdd14adf3025dbd0929551706f3ed516bee85515 /src/ldso/x86_64 | |
| parent | 054ba185999d29f6ae9a8e19549da95f783655b6 (diff) | |
| download | musl-b94608ca10051e7911250aaa53f1435b0512018c.tar.gz musl-b94608ca10051e7911250aaa53f1435b0512018c.tar.xz musl-b94608ca10051e7911250aaa53f1435b0512018c.zip | |
cleanup dynamic linker start code cruft
two actual issues: one is that __dynlink no longer wants/needs a GOT pointer argument, so the code to generate that argument can be removed. the other issue was that in the i386 code, argc/argv were being loaded into registers that would be call-clobbered, then copied to preserved registers, rather than just being loaded into the proper call-preserved registers to begin with. this cleanup is in preparation for adding new dynamic linker functionality (ability to explicitly invoke the dynamic linker to run a program).
Diffstat (limited to 'src/ldso/x86_64')
| -rw-r--r-- | src/ldso/x86_64/start.s | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/src/ldso/x86_64/start.s b/src/ldso/x86_64/start.s index cb0a9e1f..65e238b7 100644 --- a/src/ldso/x86_64/start.s +++ b/src/ldso/x86_64/start.s @@ -3,7 +3,6 @@ _start: mov (%rsp),%rdi lea 8(%rsp),%rsi - lea _GLOBAL_OFFSET_TABLE_(%rip),%rdx call __dynlink xor %edx,%edx jmp *%rax |