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-rw-r--r--libc/arch-arm/bionic/crtbegin_dynamic.S26
1 files changed, 8 insertions, 18 deletions
diff --git a/libc/arch-arm/bionic/crtbegin_dynamic.S b/libc/arch-arm/bionic/crtbegin_dynamic.S
index 624d611..e265923 100644
--- a/libc/arch-arm/bionic/crtbegin_dynamic.S
+++ b/libc/arch-arm/bionic/crtbegin_dynamic.S
@@ -30,35 +30,25 @@
.type _start,#function
.globl _start
-# This is the small startup code that is called from
-# the dynamic linker to execute an executable once all
-# dependent shared libraries have been loaded and
-# initialized.
+# this is the small startup code that is first run when
+# any executable that is statically-linked with Bionic
+# runs.
#
-# It's purpose is to call __libc_init as defined in
-# bionic/libc_init_dynamic.c with appropriate
+# it's purpose is to call __libc_init 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 constructors table, i.e. a table
-# that points to various initialization and
-# finalization sections for the program.
-#
-# NOTE: This code is currently placed in shared libraries
-# by the build system, but will be ignored.
-#
-# On the other hand, the arrays defined below are
-# required and will be parsed by the dynamic linker.
+# - address of the constructor list
#
_start:
mov r0, sp
@@ -73,7 +63,7 @@ _start:
.long __INIT_ARRAY__
.long __FINI_ARRAY__
.long __CTOR_LIST__
-
+
# the .ctors section contains a list of pointers to "constructor"
# functions that need to be called in order during C library initialization,
# just before the program is being run. This is a C++ requirement