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Use hidden visibility for generated stubs whose names begin with underscores.

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Change-Id: Idb39fd04b7a14114801624e744e76e0e7913d951
This commit is contained in:
Elliott Hughes
2013-10-24 17:03:20 -07:00
parent 9728854992
commit fff6e272e9
27 changed files with 39 additions and 6 deletions
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19
libc/tools/gensyscalls.py
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@@ -233,10 +233,17 @@ def make__NR_name(name):
return "__NR_%s" % (name)
def add_aliases(stub, syscall):
def add_footer(pointer_length, stub, syscall):
# Add any aliases for this syscall.
aliases = syscall["aliases"]
for alias in aliases:
stub += function_alias % { "func" : syscall["func"], "alias" : alias }
# Use hidden visibility for any functions beginning with underscores.
# TODO: clean up single-underscore names too.
if pointer_length == 64 and syscall["func"].startswith("__"):
stub += '.hidden _C_LABEL(' + syscall["func"] + ')\n'
return stub
@@ -334,22 +341,22 @@ class State:
syscall["__NR_name"] = make__NR_name(syscall["name"])
if syscall.has_key("arm"):
syscall["asm-arm"] = add_aliases(arm_eabi_genstub(syscall), syscall)
syscall["asm-arm"] = add_footer(32, arm_eabi_genstub(syscall), syscall)
if syscall.has_key("x86"):
if syscall["socketcall_id"] >= 0:
syscall["asm-x86"] = add_aliases(x86_genstub_socketcall(syscall), syscall)
syscall["asm-x86"] = add_footer(32, x86_genstub_socketcall(syscall), syscall)
else:
syscall["asm-x86"] = add_aliases(x86_genstub(syscall), syscall)
syscall["asm-x86"] = add_footer(32, x86_genstub(syscall), syscall)
elif syscall["socketcall_id"] >= 0:
E("socketcall_id for dispatch syscalls is only supported for x86 in '%s'" % t)
return
if syscall.has_key("mips"):
syscall["asm-mips"] = add_aliases(mips_genstub(syscall), syscall)
syscall["asm-mips"] = add_footer(32, mips_genstub(syscall), syscall)
if syscall.has_key("x86_64"):
syscall["asm-x86_64"] = add_aliases(x86_64_genstub(syscall), syscall)
syscall["asm-x86_64"] = add_footer(64, x86_64_genstub(syscall), syscall)
# Scan a Linux kernel asm/unistd.h file containing __NR_* constants