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authorJakub Kicinski <kuba@kernel.org>2023-10-26 13:42:19 -0700
committerJakub Kicinski <kuba@kernel.org>2023-10-26 13:46:28 -0700
commitec4c20ca09831ddba8fac10a7d82a9902e96e717 (patch)
treee356e6fe760bebff03330bf6f21f0823b87854bd /tools/include/nolibc
parentef113733c288eccadc105579b8e8c1bfdcc09ad1 (diff)
parentc17cda15cc86e65e9725641daddcd7a63cc9ad01 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/mac80211/rx.c 91535613b609 ("wifi: mac80211: don't drop all unprotected public action frames") 6c02fab72429 ("wifi: mac80211: split ieee80211_drop_unencrypted_mgmt() return value") Adjacent changes: drivers/net/ethernet/apm/xgene/xgene_enet_main.c 61471264c018 ("net: ethernet: apm: Convert to platform remove callback returning void") d2ca43f30611 ("net: xgene: Fix unused xgene_enet_of_match warning for !CONFIG_OF") net/vmw_vsock/virtio_transport.c 64c99d2d6ada ("vsock/virtio: support to send non-linear skb") 53b08c498515 ("vsock/virtio: initialize the_virtio_vsock before using VQs") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/include/nolibc')
-rw-r--r--tools/include/nolibc/arch-i386.h4
-rw-r--r--tools/include/nolibc/crt.h1
2 files changed, 4 insertions, 1 deletions
diff --git a/tools/include/nolibc/arch-i386.h b/tools/include/nolibc/arch-i386.h
index 64415b9fac77..28c26a00a762 100644
--- a/tools/include/nolibc/arch-i386.h
+++ b/tools/include/nolibc/arch-i386.h
@@ -167,7 +167,9 @@ void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_
__asm__ volatile (
"xor %ebp, %ebp\n" /* zero the stack frame */
"mov %esp, %eax\n" /* save stack pointer to %eax, as arg1 of _start_c */
- "and $-16, %esp\n" /* last pushed argument must be 16-byte aligned */
+ "add $12, %esp\n" /* avoid over-estimating after the 'and' & 'sub' below */
+ "and $-16, %esp\n" /* the %esp must be 16-byte aligned on 'call' */
+ "sub $12, %esp\n" /* sub 12 to keep it aligned after the push %eax */
"push %eax\n" /* push arg1 on stack to support plain stack modes too */
"call _start_c\n" /* transfer to c runtime */
"hlt\n" /* ensure it does not return */
diff --git a/tools/include/nolibc/crt.h b/tools/include/nolibc/crt.h
index a5f33fef1672..a05655b4ce1d 100644
--- a/tools/include/nolibc/crt.h
+++ b/tools/include/nolibc/crt.h
@@ -13,6 +13,7 @@ const unsigned long *_auxv __attribute__((weak));
static void __stack_chk_init(void);
static void exit(int);
+__attribute__((weak))
void _start_c(long *sp)
{
long argc;