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coreboot/payloads/libpayload/arch/x86
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Subrata Banik 063c594e9f libpayload/x86: Extend exception handling to x86_64 architecture 
Adds 64-bit (x86_64) support to libpayload's exception handler,
previously limited to x86_32.

Ensures `exception_init_asm` is called when building with
LP_ARCH_X86_64 Kconfig.

BUG=b:336265399
TEST=Successful build and boot of google/rex and google/rex64 on
ChromeOS.

Verified correct x86_64 exception handling by triggering "Debug
Exception" using firmware-shell as below:

firmware-shell: mm.l -0
Debug Exception
Error code: n/a
REG_IP:    0x0000000030023e9f
REG_FLAGS: 0x0000000000000046
REG_AX:    0x0000000000000009
REG_BX:    0x0000000000000000
REG_CX:    0x0000002000000000
REG_DX:    0x0000000000000001
REG_SP:    0x0000000034072ec0
REG_BP:    0x0000000000000009
REG_SI:    0x0000000000000029
REG_DI:    0x0000000034072eef
REG_R8:    0x0000000000000009
REG_R9:    0x0000000000000000
REG_R10:   0x0000000000000000
REG_R11:   0x0000000034072d70
REG_R12:   0x0000000000000004
REG_R13:   0x0000000000000001
REG_R14:   0x0000000034072ee6
REG_R15:   0x0000000000000004
CS:     0x0020
DS:     0x0000
ES:     0x0000
SS:     0x0018
FS:     0x0018
GS:     0x0050
Dumping stack:
0x340730c0: 3003c32e 00000000 ... 00000000 00000000
0x340730a0: 30034bc6 00000000 ... 0000002a 00000000
0x34073080: 34073234 00000000 ... 00002e65 00000000
...
...
0x34072ee0: 340730ed 30300000 ... 34073000 00000000
0x34072ec0: 34072ed8 00000000 ... 00000000 00000008
Ready for GDB connection.

Change-Id: I8f0aa1da8d179a760e8d49c3764dfd5a69d06887
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83036
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-06-20 19:51:18 +00:00
..
apic.c payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00
boot_media.c commonlib/bsd, libpayload: Do not include helpers.h in stddef.h 2023-02-16 17:55:37 +00:00
cache.c x86/cache.c: Implement dcache_* 2022-09-01 14:21:11 +00:00
coreboot.c libpayload/arch/x86: Update API handling of CBTABLE handoff 2023-05-24 11:49:51 +00:00
delay.c payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00
exception.c libpayload/x86: Extend exception handling to x86_64 architecture 2024-06-20 19:51:18 +00:00
exception_asm.S treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
exception_asm_64.S libpayload/x86: Extend exception handling to x86_64 architecture 2024-06-20 19:51:18 +00:00
exec.c libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
exec.S treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
gdb.c libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
head.S libpayload: Inject head.S into libc, remove separate class 2024-05-24 08:10:56 +00:00
head_64.S libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
Kconfig payloads: Add SPDX headers to Kconfig 2024-02-18 01:57:39 +00:00
libpayload.ldscript libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
main.c libpayload: Save EAX and EBX only for multiboot payloads 2024-05-04 16:51:44 +00:00
Makefile.mk libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
multiboot.c libpayload: Save EAX and EBX only for multiboot payloads 2024-05-04 16:51:44 +00:00
multiboot_header.inc libpayload: x86: Move Multiboot header to include file 2024-05-24 08:10:51 +00:00
pt.S libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
selfboot.c libpayload: Introduce new Kconfig to explicitly allow GPL code 2015-01-09 07:06:27 +01:00
string.c libpayload: Add x86_64 (64-bit) support 2024-05-26 01:26:31 +00:00
sysinfo.c libpayload/arch/x86: Introduce pacc pointer in sysinfo_t struct 2020-10-20 20:35:24 +00:00
timer.c libpayload/x86: Try to discover invariant TSC rate 2020-11-02 06:24:33 +00:00
util.S treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
virtual.c payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00