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S390: Use cfi_val_offset instead of cfi_escape. 

Due to raising the minimum binutils version to version >=2.28,
the used cfi_escape for cfi_val_offset can now be ommitted.

Checked with "objdump -WF" / "objdump -Wf" that the previous
cfi_escape and the new cfi_val_offset are equal.
This commit is contained in:
Stefan Liebler 2025-05-13 13:28:57 +02:00
parent 4b1ffb828c
commit 0fc76d8762
2 changed files with 4 additions and 5 deletions
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3
sysdeps/generic/sysdep.h
View File

@ -45,6 +45,7 @@
# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
# define cfi_offset(reg, off) .cfi_offset reg, off
# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
# define cfi_val_offset(reg, off) .cfi_val_offset reg, off
# define cfi_register(r1, r2) .cfi_register r1, r2
# define cfi_return_column(reg) .cfi_return_column reg
# define cfi_restore(reg) .cfi_restore reg
@ -74,6 +75,8 @@
".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_REL_OFFSET(reg, off) \
".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_VAL_OFFSET(reg, off) \
".cfi_val_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_REGISTER(r1, r2) \
".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2)
# define CFI_RETURN_COLUMN(reg) \

6
sysdeps/s390/s390-64/s390x-mcount.h
View File

@ -68,11 +68,7 @@ C_LABEL(MCOUNT_SYMBOL)
/* Save the caller-clobbered registers. */
aghi %r15,-224
cfi_adjust_cfa_offset (224)
/* binutils 2.28+: .cfi_val_offset r15, -160 */
.cfi_escape \
/* DW_CFA_val_offset */ 0x14, \
/* r15 */ 0x0f, \
/* scaled offset */ 0x14
cfi_val_offset (r15, -160)
stmg %r14,%r5,160(%r15)
cfi_offset (r14, -224)
cfi_offset (r0, -224+16)