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sim: switch sim_{read,write} APIs to 64-bit all the time [PR sim/7504]

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We've been using SIM_ADDR which has always been 32-bit.  This means
the upper 32-bit address range in 64-bit sims is inaccessible.  Use
64-bit addresses all the time since we want the APIs to be stable
regardless of the active arch backend (which can be 32 or 64-bit).

The length is also 64-bit because it's completely feasible to have
a program that is larger than 4 GiB in size/image/runtime.  Forcing
the caller to manually chunk those accesses up into 4 GiB at a time
doesn't seem useful to anyone.

Bug: https://sourceware.org/PR7504
This commit is contained in:
Mike Frysinger
2022-11-12 01:15:32 +07:00
parent 20fea6638f
commit 63fd5b5dda
14 changed files with 64 additions and 60 deletions
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16
sim/arm/wrapper.c
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@ -150,13 +150,13 @@ ARMul_ConsolePrint (ARMul_State * state,
}
}
int
uint64_t
sim_write (SIM_DESC sd ATTRIBUTE_UNUSED,
SIM_ADDR addr,
uint64_t addr,
const void * buffer,
int size)
uint64_t size)
{
int i;
uint64_t i;
const unsigned char * data = buffer;
init ();
@ -167,13 +167,13 @@ sim_write (SIM_DESC sd ATTRIBUTE_UNUSED,
return size;
}
int
uint64_t
sim_read (SIM_DESC sd ATTRIBUTE_UNUSED,
SIM_ADDR addr,
uint64_t addr,
void * buffer,
int size)
uint64_t size)
{
int i;
uint64_t i;
unsigned char * data = buffer;
init ();