268 lines
7.9 KiB
Diff
268 lines
7.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Wed, 26 Feb 2014 21:49:12 -0500
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Subject: [PATCH] Make "exit" take a return code.
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This adds "exit" with a return code. With this patch, any "exit"
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command /may/ include a return code, and on platforms that support
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returning with an exit status, we will do so. By default we return the
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same exit status we did before this patch.
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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grub-core/commands/minicmd.c | 20 ++++++++++++++++----
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grub-core/kern/efi/efi.c | 9 +++++++--
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grub-core/kern/emu/main.c | 2 +-
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grub-core/kern/emu/misc.c | 5 +++--
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grub-core/kern/i386/coreboot/init.c | 2 +-
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grub-core/kern/i386/qemu/init.c | 2 +-
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grub-core/kern/ieee1275/init.c | 2 +-
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grub-core/kern/mips/arc/init.c | 2 +-
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grub-core/kern/mips/loongson/init.c | 2 +-
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grub-core/kern/mips/qemu_mips/init.c | 2 +-
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grub-core/kern/misc.c | 11 ++++++++++-
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grub-core/kern/uboot/init.c | 6 +++---
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grub-core/kern/xen/init.c | 2 +-
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include/grub/misc.h | 2 +-
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14 files changed, 48 insertions(+), 21 deletions(-)
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diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c
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index fa498931ed2..2bd3ac76f2d 100644
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--- a/grub-core/commands/minicmd.c
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+++ b/grub-core/commands/minicmd.c
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@@ -182,12 +182,24 @@ grub_mini_cmd_lsmod (struct grub_command *cmd __attribute__ ((unused)),
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}
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/* exit */
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-static grub_err_t __attribute__ ((noreturn))
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+static grub_err_t
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grub_mini_cmd_exit (struct grub_command *cmd __attribute__ ((unused)),
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- int argc __attribute__ ((unused)),
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- char *argv[] __attribute__ ((unused)))
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+ int argc, char *argv[])
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{
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- grub_exit ();
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+ int retval = -1;
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+ unsigned long n;
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+
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+ if (argc < 0 || argc > 1)
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+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
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+
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+ if (argc == 1)
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+ {
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+ n = grub_strtoul (argv[0], 0, 10);
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+ if (n != ~0UL)
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+ retval = n;
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+ }
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+
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+ grub_exit (retval);
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/* Not reached. */
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}
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diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
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index 8cff7be0289..05d8237a9b2 100644
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--- a/grub-core/kern/efi/efi.c
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+++ b/grub-core/kern/efi/efi.c
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@@ -165,11 +165,16 @@ grub_reboot (void)
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}
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void
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-grub_exit (void)
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+grub_exit (int retval)
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{
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+ int rc = GRUB_EFI_LOAD_ERROR;
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+
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+ if (retval == 0)
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+ rc = GRUB_EFI_SUCCESS;
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+
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grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
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efi_call_4 (grub_efi_system_table->boot_services->exit,
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- grub_efi_image_handle, GRUB_EFI_SUCCESS, 0, 0);
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+ grub_efi_image_handle, rc, 0, 0);
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for (;;) ;
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}
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diff --git a/grub-core/kern/emu/main.c b/grub-core/kern/emu/main.c
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index 425bb960347..55ea5a11ccd 100644
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--- a/grub-core/kern/emu/main.c
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+++ b/grub-core/kern/emu/main.c
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@@ -67,7 +67,7 @@ grub_reboot (void)
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}
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void
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-grub_exit (void)
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+grub_exit (int retval __attribute__((unused)))
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{
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grub_reboot ();
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}
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diff --git a/grub-core/kern/emu/misc.c b/grub-core/kern/emu/misc.c
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index dfd8a8ec488..0ff13bcaf8c 100644
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--- a/grub-core/kern/emu/misc.c
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+++ b/grub-core/kern/emu/misc.c
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@@ -151,9 +151,10 @@ xasprintf (const char *fmt, ...)
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#if !defined (GRUB_MACHINE_EMU) || defined (GRUB_UTIL)
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void
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-grub_exit (void)
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+__attribute__ ((noreturn))
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+grub_exit (int rc)
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{
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- exit (1);
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+ exit (rc < 0 ? 1 : rc);
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}
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#endif
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diff --git a/grub-core/kern/i386/coreboot/init.c b/grub-core/kern/i386/coreboot/init.c
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index 3314f027fec..36f9134b7b7 100644
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--- a/grub-core/kern/i386/coreboot/init.c
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+++ b/grub-core/kern/i386/coreboot/init.c
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@@ -41,7 +41,7 @@ extern grub_uint8_t _end[];
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extern grub_uint8_t _edata[];
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void __attribute__ ((noreturn))
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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/* We can't use grub_fatal() in this function. This would create an infinite
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loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
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diff --git a/grub-core/kern/i386/qemu/init.c b/grub-core/kern/i386/qemu/init.c
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index 271b6fbfabd..9fafe98f015 100644
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--- a/grub-core/kern/i386/qemu/init.c
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+++ b/grub-core/kern/i386/qemu/init.c
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@@ -42,7 +42,7 @@ extern grub_uint8_t _end[];
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extern grub_uint8_t _edata[];
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void __attribute__ ((noreturn))
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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/* We can't use grub_fatal() in this function. This would create an infinite
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loop, since grub_fatal() calls grub_abort() which in turn calls grub_exit(). */
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diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
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index d483e35eed2..e71d1584164 100644
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--- a/grub-core/kern/ieee1275/init.c
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+++ b/grub-core/kern/ieee1275/init.c
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@@ -71,7 +71,7 @@ grub_addr_t grub_ieee1275_original_stack;
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#endif
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void
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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grub_ieee1275_exit ();
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}
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diff --git a/grub-core/kern/mips/arc/init.c b/grub-core/kern/mips/arc/init.c
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index 2ed3ff3191e..5c40c34078d 100644
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--- a/grub-core/kern/mips/arc/init.c
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+++ b/grub-core/kern/mips/arc/init.c
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@@ -276,7 +276,7 @@ grub_halt (void)
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}
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void
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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GRUB_ARC_FIRMWARE_VECTOR->exit ();
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diff --git a/grub-core/kern/mips/loongson/init.c b/grub-core/kern/mips/loongson/init.c
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index 7b96531b983..dff598ca7b0 100644
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--- a/grub-core/kern/mips/loongson/init.c
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+++ b/grub-core/kern/mips/loongson/init.c
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@@ -304,7 +304,7 @@ grub_halt (void)
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}
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void
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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grub_halt ();
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}
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diff --git a/grub-core/kern/mips/qemu_mips/init.c b/grub-core/kern/mips/qemu_mips/init.c
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index be88b77d22d..8b6c55ffc01 100644
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--- a/grub-core/kern/mips/qemu_mips/init.c
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+++ b/grub-core/kern/mips/qemu_mips/init.c
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@@ -75,7 +75,7 @@ grub_machine_fini (int flags __attribute__ ((unused)))
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}
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void
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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grub_halt ();
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}
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diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
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index 3af336ee227..63b586d09cb 100644
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--- a/grub-core/kern/misc.c
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+++ b/grub-core/kern/misc.c
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@@ -1209,9 +1209,18 @@ grub_abort (void)
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grub_getkey ();
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}
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- grub_exit ();
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+ grub_exit (1);
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}
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+#if defined (__clang__) && !defined (GRUB_UTIL)
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+/* clang emits references to abort(). */
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+void __attribute__ ((noreturn))
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+abort (void)
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+{
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+ grub_abort ();
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+}
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+#endif
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+
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void
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grub_fatal (const char *fmt, ...)
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{
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diff --git a/grub-core/kern/uboot/init.c b/grub-core/kern/uboot/init.c
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index 3e338645c57..be2a5be1d07 100644
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--- a/grub-core/kern/uboot/init.c
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+++ b/grub-core/kern/uboot/init.c
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@@ -39,9 +39,9 @@ extern grub_size_t grub_total_module_size;
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static unsigned long timer_start;
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void
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-grub_exit (void)
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+grub_exit (int rc)
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{
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- grub_uboot_return (0);
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+ grub_uboot_return (rc < 0 ? 1 : rc);
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}
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static grub_uint64_t
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@@ -78,7 +78,7 @@ grub_machine_init (void)
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if (!ver)
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{
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/* Don't even have a console to log errors to... */
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- grub_exit ();
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+ grub_exit (-1);
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}
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else if (ver > API_SIG_VERSION)
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{
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diff --git a/grub-core/kern/xen/init.c b/grub-core/kern/xen/init.c
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index 782ca72952a..708b060f324 100644
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--- a/grub-core/kern/xen/init.c
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+++ b/grub-core/kern/xen/init.c
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@@ -584,7 +584,7 @@ grub_machine_init (void)
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}
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void
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-grub_exit (void)
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+grub_exit (int rc __attribute__((unused)))
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{
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struct sched_shutdown arg;
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diff --git a/include/grub/misc.h b/include/grub/misc.h
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index 7d2b5519690..fd18e6320b8 100644
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--- a/include/grub/misc.h
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+++ b/include/grub/misc.h
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@@ -353,7 +353,7 @@ int EXPORT_FUNC(grub_vsnprintf) (char *str, grub_size_t n, const char *fmt,
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char *EXPORT_FUNC(grub_xasprintf) (const char *fmt, ...)
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__attribute__ ((format (GNU_PRINTF, 1, 2))) WARN_UNUSED_RESULT;
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char *EXPORT_FUNC(grub_xvasprintf) (const char *fmt, va_list args) WARN_UNUSED_RESULT;
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-void EXPORT_FUNC(grub_exit) (void) __attribute__ ((noreturn));
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+void EXPORT_FUNC(grub_exit) (int rc) __attribute__ ((noreturn));
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grub_uint64_t EXPORT_FUNC(grub_divmod64) (grub_uint64_t n,
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grub_uint64_t d,
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grub_uint64_t *r);
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