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grub2/0016-Make-exit-take-a-return-code.patch
Javier Martinez Canillas 7e98da058f
Cleanup our patchset to reduce the number of patches 
This change reorganizes and cleanups our patches to reduce the patch number
from 314 patches to 187. That's achieved by dropping patches that are later
reverted and squashing fixes for earlier patches that introduced features.

There are no code changes and the diff with upstream is the same before and
after the cleanup. Having fewer patches makes easier to manage the patchset
and also will ease to rebase them on top of the latest grub-2.04 release.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2019-07-16 12:30:06 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 26 Feb 2014 21:49:12 -0500
Subject: [PATCH] Make "exit" take a return code.
This adds "exit" with a return code. With this patch, any "exit"
command /may/ include a return code, and on platforms that support
returning with an exit status, we will do so. By default we return the
same exit status we did before this patch.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/commands/minicmd.c | 20 ++++++++++++++++----
grub-core/kern/efi/efi.c | 9 +++++++--
grub-core/kern/emu/main.c | 2 +-
grub-core/kern/emu/misc.c | 5 +++--
grub-core/kern/i386/coreboot/init.c | 2 +-
grub-core/kern/i386/qemu/init.c | 2 +-
grub-core/kern/ieee1275/init.c | 2 +-
grub-core/kern/mips/arc/init.c | 2 +-
grub-core/kern/mips/loongson/init.c | 2 +-
grub-core/kern/mips/qemu_mips/init.c | 2 +-
grub-core/kern/misc.c | 11 ++++++++++-
grub-core/kern/uboot/init.c | 6 +++---
grub-core/kern/xen/init.c | 2 +-
include/grub/misc.h | 2 +-
14 files changed, 48 insertions(+), 21 deletions(-)
diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c
index a3a11824172..b25ca4b9f17 100644
--- a/grub-core/commands/minicmd.c
+++ b/grub-core/commands/minicmd.c
@@ -176,12 +176,24 @@ grub_mini_cmd_lsmod (struct grub_command *cmd __attribute__ ((unused)),
}
/* exit */
-static grub_err_t __attribute__ ((noreturn))
+static grub_err_t
grub_mini_cmd_exit (struct grub_command *cmd __attribute__ ((unused)),
- int argc __attribute__ ((unused)),
- char *argv[] __attribute__ ((unused)))
+ int argc, char *argv[])
{
- grub_exit ();
+ int retval = -1;
+ unsigned long n;
+
+ if (argc < 0 || argc > 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+ if (argc == 1)
+ {
+ n = grub_strtoul (argv[0], 0, 10);
+ if (n != ~0UL)
+ retval = n;
+ }
+
+ grub_exit (retval);
/* Not reached. */
}
diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
index 708581fcbde..e339f264b3a 100644
--- a/grub-core/kern/efi/efi.c
+++ b/grub-core/kern/efi/efi.c
@@ -164,11 +164,16 @@ grub_reboot (void)
}
void
-grub_exit (void)
+grub_exit (int retval)
{
+ int rc = GRUB_EFI_LOAD_ERROR;
+
+ if (retval == 0)
+ rc = GRUB_EFI_SUCCESS;
+
grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
efi_call_4 (grub_efi_system_table->boot_services->exit,
- grub_efi_image_handle, GRUB_EFI_SUCCESS, 0, 0);
+ grub_efi_image_handle, rc, 0, 0);
for (;;) ;
}
diff --git a/grub-core/kern/emu/main.c b/grub-core/kern/emu/main.c
index 425bb960347..55ea5a11ccd 100644
--- a/grub-core/kern/emu/main.c
+++ b/grub-core/kern/emu/main.c
@@ -67,7 +67,7 @@ grub_reboot (void)
}
void
-grub_exit (void)
+grub_exit (int retval __attribute__((unused)))
{
grub_reboot ();
}
diff --git a/grub-core/kern/emu/misc.c b/grub-core/kern/emu/misc.c
index 76661337f10..82012a72fcb 100644
--- a/grub-core/kern/emu/misc.c
+++ b/grub-core/kern/emu/misc.c
@@ -137,9 +137,10 @@ xasprintf (const char *fmt, ...)
#if !defined (GRUB_MACHINE_EMU) || defined (GRUB_UTIL)
void
-grub_exit (void)
+__attribute__ ((noreturn))
+grub_exit (int rc)
{
- exit (1);
+ exit (rc < 0 ? 1 : rc);
}
#endif
diff --git a/grub-core/kern/i386/coreboot/init.c b/grub-core/kern/i386/coreboot/init.c
index 3314f027fec..36f9134b7b7 100644
--- a/grub-core/kern/i386/coreboot/init.c
+++ b/grub-core/kern/i386/coreboot/init.c
@@ -41,7 +41,7 @@ extern grub_uint8_t _end[];
extern grub_uint8_t _edata[];
void __attribute__ ((noreturn))
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
/* We can't use grub_fatal() in this function. This would create an infinite
loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
diff --git a/grub-core/kern/i386/qemu/init.c b/grub-core/kern/i386/qemu/init.c
index 271b6fbfabd..9fafe98f015 100644
--- a/grub-core/kern/i386/qemu/init.c
+++ b/grub-core/kern/i386/qemu/init.c
@@ -42,7 +42,7 @@ extern grub_uint8_t _end[];
extern grub_uint8_t _edata[];
void __attribute__ ((noreturn))
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
/* We can't use grub_fatal() in this function. This would create an infinite
loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 0d8ebf58b95..f5423ce27d9 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -68,7 +68,7 @@ grub_addr_t grub_ieee1275_original_stack;
#endif
void
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
grub_ieee1275_exit ();
}
diff --git a/grub-core/kern/mips/arc/init.c b/grub-core/kern/mips/arc/init.c
index 3834a149093..86b3a25ec40 100644
--- a/grub-core/kern/mips/arc/init.c
+++ b/grub-core/kern/mips/arc/init.c
@@ -276,7 +276,7 @@ grub_halt (void)
}
void
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
GRUB_ARC_FIRMWARE_VECTOR->exit ();
diff --git a/grub-core/kern/mips/loongson/init.c b/grub-core/kern/mips/loongson/init.c
index 7b96531b983..dff598ca7b0 100644
--- a/grub-core/kern/mips/loongson/init.c
+++ b/grub-core/kern/mips/loongson/init.c
@@ -304,7 +304,7 @@ grub_halt (void)
}
void
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
grub_halt ();
}
diff --git a/grub-core/kern/mips/qemu_mips/init.c b/grub-core/kern/mips/qemu_mips/init.c
index be88b77d22d..8b6c55ffc01 100644
--- a/grub-core/kern/mips/qemu_mips/init.c
+++ b/grub-core/kern/mips/qemu_mips/init.c
@@ -75,7 +75,7 @@ grub_machine_fini (int flags __attribute__ ((unused)))
}
void
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
grub_halt ();
}
diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
index 3b633d51f4c..cd63a8cea73 100644
--- a/grub-core/kern/misc.c
+++ b/grub-core/kern/misc.c
@@ -1095,9 +1095,18 @@ grub_abort (void)
grub_getkey ();
}
- grub_exit ();
+ grub_exit (1);
}
+#if defined (__clang__) && !defined (GRUB_UTIL)
+/* clang emits references to abort(). */
+void __attribute__ ((noreturn))
+abort (void)
+{
+ grub_abort ();
+}
+#endif
+
void
grub_fatal (const char *fmt, ...)
{
diff --git a/grub-core/kern/uboot/init.c b/grub-core/kern/uboot/init.c
index 3e338645c57..be2a5be1d07 100644
--- a/grub-core/kern/uboot/init.c
+++ b/grub-core/kern/uboot/init.c
@@ -39,9 +39,9 @@ extern grub_size_t grub_total_module_size;
static unsigned long timer_start;
void
-grub_exit (void)
+grub_exit (int rc)
{
- grub_uboot_return (0);
+ grub_uboot_return (rc < 0 ? 1 : rc);
}
static grub_uint64_t
@@ -78,7 +78,7 @@ grub_machine_init (void)
if (!ver)
{
/* Don't even have a console to log errors to... */
- grub_exit ();
+ grub_exit (-1);
}
else if (ver > API_SIG_VERSION)
{
diff --git a/grub-core/kern/xen/init.c b/grub-core/kern/xen/init.c
index 0559c033c3d..fce526d417b 100644
--- a/grub-core/kern/xen/init.c
+++ b/grub-core/kern/xen/init.c
@@ -549,7 +549,7 @@ grub_machine_init (void)
}
void
-grub_exit (void)
+grub_exit (int rc __attribute__((unused)))
{
struct sched_shutdown arg;
diff --git a/include/grub/misc.h b/include/grub/misc.h
index 372f009e84f..83fd69f4ada 100644
--- a/include/grub/misc.h
+++ b/include/grub/misc.h
@@ -334,7 +334,7 @@ int EXPORT_FUNC(grub_vsnprintf) (char *str, grub_size_t n, const char *fmt,
char *EXPORT_FUNC(grub_xasprintf) (const char *fmt, ...)
__attribute__ ((format (GNU_PRINTF, 1, 2))) WARN_UNUSED_RESULT;
char *EXPORT_FUNC(grub_xvasprintf) (const char *fmt, va_list args) WARN_UNUSED_RESULT;
-void EXPORT_FUNC(grub_exit) (void) __attribute__ ((noreturn));
+void EXPORT_FUNC(grub_exit) (int rc) __attribute__ ((noreturn));
grub_uint64_t EXPORT_FUNC(grub_divmod64) (grub_uint64_t n,
grub_uint64_t d,
grub_uint64_t *r);
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