diff options
Diffstat (limited to 'libgloss/msp430/memmodel.h')
| -rw-r--r-- | libgloss/msp430/memmodel.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/libgloss/msp430/memmodel.h b/libgloss/msp430/memmodel.h index a481460c6..9fba60190 100644 --- a/libgloss/msp430/memmodel.h +++ b/libgloss/msp430/memmodel.h @@ -40,10 +40,16 @@ #endif /* Start a function in its own named and numbered section, so that it - can be subject to linker garbage collection. The numbers are used - to enforce link-time ordering of the sections. Note - the construction - of the symbol names is critical - they need to match the unresolved - symbol references created by the compiler and assembler. */ + can be subject to linker garbage collection. + + The linker links all .crt_* sections in asciibetical order at the same place. + So, the four digits in .crt_NNNN_xxx name are used to enforce link-time + ordering of the sections. Make sure to keep them in sequential order. The + first two digits are set in the files, the second two allow users to insert + code between our standard code fragments. + + Note - the construction of the symbol names is critical - they need to match + the unresolved symbol references created by the compiler and assembler. */ .macro START_CRT_FUNC number name .section .crt_\number\name,"ax",@progbits .global __crt0_\name |