diff mbox series

[v2,3/4] tools/nolibc: MIPS: drop noreorder option

Message ID 20250225-nolibc-mips-n32-v2-3-664b47d87fa0@weissschuh.net (mailing list archive)
State New
Headers show
Series tools/nolibc: MIPS: entrypoint cleanups and N32/N64 ABIs | expand

Commit Message

Thomas Weißschuh Feb. 25, 2025, 5:02 p.m. UTC 
There are no more statements in the assembly code which would require
the usage of ".set noreorder".

Remove the option.

This also allows removal of the manual "nop" instruction in the
delay slot.

Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/lkml/alpine.DEB.2.21.2502172208570.65342@angie.orcam.me.uk/
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 tools/include/nolibc/arch-mips.h | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h
index 0776de7574b451aeb34531bc4696c7bd9b694268..4f0b969f66af610d3c986f3ff0e1c3f3a0be16b5 100644
--- a/tools/include/nolibc/arch-mips.h
+++ b/tools/include/nolibc/arch-mips.h
@@ -183,15 +183,11 @@  void __start(void);
 void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector __start(void)
 {
 	__asm__ volatile (
-		".set push\n"
-		".set noreorder\n"
 		"move  $a0, $sp\n"       /* save stack pointer to $a0, as arg1 of _start_c */
 		"addiu $sp, $sp, -16\n"  /* the callee expects to save a0..a3 there        */
 		"lui $t9, %hi(_start_c)\n" /* ABI requires current function address in $t9 */
 		"ori $t9, %lo(_start_c)\n"
 		"jalr $t9\n"             /* transfer to c runtime                          */
-		" nop\n"                 /* delayed slot                                   */
-		".set pop\n"
 	);
 	__nolibc_entrypoint_epilogue();
 }