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tools/nolibc: Remove .global _start from the entry point code

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Building with clang yields the following error:
```
  <inline asm>:3:1: error: _start changed binding to STB_GLOBAL
  .global _start
  ^
  1 error generated.
```
Make sure only specify one between `.global _start` and `.weak _start`.
Remove `.global _start`.

Cc: llvm@lists.linux.dev
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Ammar Faizi 2022-03-29 17:17:31 +07:00 committed by Paul E. McKenney
parent 37d62758e7
commit 1590c59836
6 changed files with 0 additions and 6 deletions
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1
tools/include/nolibc/arch-aarch64.h
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@ -184,7 +184,6 @@ struct sys_stat_struct {
/* startup code */
__asm__ (".section .text\n"
".weak _start\n"
".global _start\n"
"_start:\n"
"ldr x0, [sp]\n" // argc (x0) was in the stack
"add x1, sp, 8\n" // argv (x1) = sp

1
tools/include/nolibc/arch-arm.h
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@ -177,7 +177,6 @@ struct sys_stat_struct {
/* startup code */
__asm__ (".section .text\n"
".weak _start\n"
".global _start\n"
"_start:\n"
#if defined(__THUMBEB__) || defined(__THUMBEL__)
/* We enter here in 32-bit mode but if some previous functions were in

1
tools/include/nolibc/arch-i386.h
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@ -176,7 +176,6 @@ struct sys_stat_struct {
*/
__asm__ (".section .text\n"
".weak _start\n"
".global _start\n"
"_start:\n"
"pop %eax\n" // argc (first arg, %eax)
"mov %esp, %ebx\n" // argv[] (second arg, %ebx)

1
tools/include/nolibc/arch-mips.h
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@ -192,7 +192,6 @@ struct sys_stat_struct {
__asm__ (".section .text\n"
".weak __start\n"
".set nomips16\n"
".global __start\n"
".set noreorder\n"
".option pic0\n"
".ent __start\n"

1
tools/include/nolibc/arch-riscv.h
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@ -185,7 +185,6 @@ struct sys_stat_struct {
/* startup code */
__asm__ (".section .text\n"
".weak _start\n"
".global _start\n"
"_start:\n"
".option push\n"
".option norelax\n"

1
tools/include/nolibc/arch-x86_64.h
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@ -199,7 +199,6 @@ struct sys_stat_struct {
*/
__asm__ (".section .text\n"
".weak _start\n"
".global _start\n"
"_start:\n"
"pop %rdi\n" // argc (first arg, %rdi)
"mov %rsp, %rsi\n" // argv[] (second arg, %rsi)