colin/u-boot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

trace: conserve gd register on RISC-V

Browse Source 
An UEFI application may change the value of the register that gd lives in.
But some of our functions like get_ticks() access this register. So we
have to set the gd register to the U-Boot value when entering a trace
point and set it back to the application value when exiting the trace
point.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt
2020-10-15 12:30:09 +02:00
parent 87e9963d5a
commit d3d6afae3c
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/trace.c
View File

@@ -57,7 +57,7 @@ static inline uintptr_t __attribute__((no_instrument_function))
return offset / FUNC_SITE_SIZE; return offset / FUNC_SITE_SIZE;
} }
#if defined(CONFIG_EFI_LOADER) && defined(CONFIG_ARM) #if defined(CONFIG_EFI_LOADER) && (defined(CONFIG_ARM) || defined(CONFIG_RISCV))
/** /**
* trace_gd - the value of the gd register * trace_gd - the value of the gd register