From 6cdda0ff4bad7edbb4c94a52234138bf2ac9a6b6 Mon Sep 17 00:00:00 2001 From: Aleksandar Markovic Date: Sun, 26 Jan 2020 23:55:04 +0100 Subject: hw/core/loader: Let load_elf() populate a field with CPU-specific flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit While loading the executable, some platforms (like AVR) need to detect CPU type that executable is built for - and, with this patch, this is enabled by reading the field 'e_flags' of the ELF header of the executable in question. The change expands functionality of the following functions: - load_elf() - load_elf_as() - load_elf_ram() - load_elf_ram_sym() The argument added to these functions is called 'pflags' and is of type 'uint32_t*' (that matches 'pointer to 'elf_word'', 'elf_word' being the type of the field 'e_flags', in both 32-bit and 64-bit variants of ELF header). Callers are allowed to pass NULL as that argument, and in such case no lookup to the field 'e_flags' will happen, and no information will be returned, of course. CC: Richard Henderson CC: Peter Maydell CC: Edgar E. Iglesias CC: Michael Walle CC: Thomas Huth CC: Laurent Vivier CC: Philippe Mathieu-Daudé CC: Aleksandar Rikalo CC: Aurelien Jarno CC: Jia Liu CC: David Gibson CC: Mark Cave-Ayland CC: BALATON Zoltan CC: Christian Borntraeger CC: Thomas Huth CC: Artyom Tarasenko CC: Fabien Chouteau CC: KONRAD Frederic CC: Max Filippov Reviewed-by: Aleksandar Rikalo Signed-off-by: Michael Rolnik Signed-off-by: Philippe Mathieu-Daudé Signed-off-by: Aleksandar Markovic Message-Id: <1580079311-20447-24-git-send-email-aleksandar.markovic@rt-rk.com> --- hw/mips/mips_fulong2e.c | 2 +- hw/mips/mips_malta.c | 3 ++- hw/mips/mips_mipssim.c | 2 +- hw/mips/mips_r4k.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) (limited to 'hw/mips') diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c index 9eaa6e2..2e043cb 100644 --- a/hw/mips/mips_fulong2e.c +++ b/hw/mips/mips_fulong2e.c @@ -119,7 +119,7 @@ static int64_t load_kernel(CPUMIPSState *env) cpu_mips_kseg0_to_phys, NULL, (uint64_t *)&kernel_entry, (uint64_t *)&kernel_low, (uint64_t *)&kernel_high, - 0, EM_MIPS, 1, 0); + NULL, 0, EM_MIPS, 1, 0); if (kernel_size < 0) { error_report("could not load kernel '%s': %s", loaderparams.kernel_filename, diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c index 5aaeaa8..34b76bb 100644 --- a/hw/mips/mips_malta.c +++ b/hw/mips/mips_malta.c @@ -1039,7 +1039,8 @@ static int64_t load_kernel(void) kernel_size = load_elf(loaderparams.kernel_filename, NULL, cpu_mips_kseg0_to_phys, NULL, (uint64_t *)&kernel_entry, NULL, - (uint64_t *)&kernel_high, big_endian, EM_MIPS, 1, 0); + (uint64_t *)&kernel_high, NULL, big_endian, EM_MIPS, + 1, 0); if (kernel_size < 0) { error_report("could not load kernel '%s': %s", loaderparams.kernel_filename, diff --git a/hw/mips/mips_mipssim.c b/hw/mips/mips_mipssim.c index 84c03dd..b934ca9 100644 --- a/hw/mips/mips_mipssim.c +++ b/hw/mips/mips_mipssim.c @@ -74,7 +74,7 @@ static int64_t load_kernel(void) kernel_size = load_elf(loaderparams.kernel_filename, NULL, cpu_mips_kseg0_to_phys, NULL, (uint64_t *)&entry, NULL, - (uint64_t *)&kernel_high, big_endian, + (uint64_t *)&kernel_high, NULL, big_endian, EM_MIPS, 1, 0); if (kernel_size >= 0) { if ((entry & ~0x7fffffffULL) == 0x80000000) { diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c index fd926a3..b2aec43 100644 --- a/hw/mips/mips_r4k.c +++ b/hw/mips/mips_r4k.c @@ -98,7 +98,7 @@ static int64_t load_kernel(void) kernel_size = load_elf(loaderparams.kernel_filename, NULL, cpu_mips_kseg0_to_phys, NULL, (uint64_t *)&entry, NULL, - (uint64_t *)&kernel_high, big_endian, + (uint64_t *)&kernel_high, NULL, big_endian, EM_MIPS, 1, 0); if (kernel_size >= 0) { if ((entry & ~0x7fffffffULL) == 0x80000000) { -- cgit v1.1