diff options
Diffstat (limited to 'libc/arch-x86/bionic/crtbegin_static.S')
| -rw-r--r-- | libc/arch-x86/bionic/crtbegin_static.S | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/libc/arch-x86/bionic/crtbegin_static.S b/libc/arch-x86/bionic/crtbegin_static.S index eb4acee..a6c9ebf 100644 --- a/libc/arch-x86/bionic/crtbegin_static.S +++ b/libc/arch-x86/bionic/crtbegin_static.S @@ -29,25 +29,27 @@ .type _start, @function .globl _start -# this is the small startup code that is first run when -# any executable that is statically-linked with Bionic -# runs. +# This is the small startup code that is first run when +# any static executable runs. A static executable is one +# that is started directly by the Linux kernel, not from +# the dynamic linker, it thus cannot depend on any shared +# library. # -# it's purpose is to call __libc_init with appropriate +# It's purpose is to call __libc_init as defined in +# bionic/libc_init_static.c with appropriate # arguments, which are: # # - the address of the raw data block setup by the Linux # kernel ELF loader # -# - address of an "onexit" function, not used on any -# platform supported by Bionic +# - address of an "onexit" function (not used on any +# platform supported by Bionic). # -# - address of the "main" function of the program. We -# can't hard-code it in the adr pseudo instruction -# so we use a tiny trampoline that will get relocated -# by the dynamic linker before this code runs +# - address of the "main" function of the program. # -# - address of the constructor list +# - address of the constructors table, i.e. a table +# that points to various initialization and +# finalization sections for the program. # _start: mov %esp, %eax |